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Vungtau 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Vungtau

Vietnam

Long range weather outlook for Vungtau includes 14 day forecast summary:

Over the next 14 days the Vungtau forecast suggests the average daytime maximum temperature will be around 33°C, with a high for the two weeks of 34°C expected on the afternoon of Saturday 4th. The average minimum temperature will be 29°C, dipping to its lowest on the morning of Sunday 5th at 28°C. The next 14 days will have some days seeing a little precipitation and some days with rain. It looks like Saturday 11th will have the most precipitation with an accumulation of around 9.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 02
May		19:00

SE
SE

 16 / 19 mph 91 / 111°F 73% 1006 mb
Low level cloud: 3%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 17 / 19 mph 88 / 103°F 75% 1008 mb
Low level cloud: 86%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 03
May		01:00

SE
SE

 15 / 17 mph 87 / 100°F 74% 1007 mb
Low level cloud: 74%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

 13 / 17 mph 86 / 96°F 71% 1007 mb
Low level cloud: 64%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 12 / 18 mph 88 / 94°F 67% 1009 mb
Low level cloud: 60%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 10 / 12 mph 90 / 99°F 63% 1010 mb
Low level cloud: 1%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SE
SE

 11 / 12 mph 93 / 108°F 67% 1007 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 15 / 17 mph 93 / 113°F 72% 1005 mb
Low level cloud: 10%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 15 / 17 mph 91 / 110°F 75% 1007 mb
Low level cloud: 48%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 14 / 16 mph 89 / 104°F 76% 1009 mb
Low level cloud: 36%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 04
May		01:00

SE
SE

 11 / 16 mph 86 / 99°F 76% 1007 mb
Low level cloud: 35%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

SE
SE

 8 / 13 mph 85 / 95°F 78% 1007 mb
Low level cloud: 7%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
40%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

ESE
ESE

 7 / 12 mph 87 / 92°F 72% 1009 mb
Low level cloud: 2%
Mid level cloud: 21%
High level cloud: 11%
Most Significant Cloud Type: medium
25%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
10:00

SE
SE

 9 / 11 mph 90 / 101°F 68% 1009 mb
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 13%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SE
SE

 11 / 13 mph 94 / 112°F 70% 1007 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 22%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

 12 / 13 mph 94 / 113°F 69% 1005 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 3%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 11 / 12 mph 91 / 110°F 72% 1007 mb
Low level cloud: 39%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 9 / 11 mph 88 / 102°F 74% 1008 mb
Low level cloud: 50%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May		01:00

SSE
SSE

 7 / 11 mph 86 / 98°F 76% 1007 mb
Low level cloud: 12%
Mid level cloud: 32%
High level cloud: 10%
Most Significant Cloud Type: low
24%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

S
S

 6 / 11 mph 84 / 92°F 76% 1006 mb
Low level cloud: 8%
Mid level cloud: 36%
High level cloud: 30%
Most Significant Cloud Type: medium
61%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

ESE
ESE

 6 / 8 mph 86 / 90°F 73% 1008 mb
Low level cloud: 2%
Mid level cloud: 25%
High level cloud: 9%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 7 / 9 mph 89 / 96°F 67% 1009 mb
Low level cloud: 1%
Mid level cloud: 24%
High level cloud: 33%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

 9 / 10 mph 92 / 103°F 66% 1007 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 37%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 9 / 11 mph 92 / 106°F 67% 1005 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 16%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 10 / 12 mph 89 / 104°F 72% 1007 mb
Low level cloud: 2%
Mid level cloud: 22%
High level cloud: 13%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 10 / 12 mph 87 / 99°F 75% 1009 mb
Low level cloud: 6%
Mid level cloud: 28%
High level cloud: 15%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 06
May		01:00

SSE
SSE

 9 / 13 mph 86 / 96°F 75% 1008 mb
Low level cloud: 43%
Mid level cloud: 11%
High level cloud: 24%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 8 / 10 mph 85 / 93°F 75% 1008 mb
Low level cloud: 48%
Mid level cloud: 15%
High level cloud: 48%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 6 / 9 mph 87 / 91°F 72% 1010 mb
Low level cloud: 24%
Mid level cloud: 15%
High level cloud: 9%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SE
SE

 8 / 9 mph 90 / 98°F 66% 1010 mb
Low level cloud: 22%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

 9 / 10 mph 93 / 107°F 66% 1008 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 12 / 13 mph 93 / 106°F 63% 1006 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 13 / 15 mph 91 / 103°F 61% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 11 / 13 mph 89 / 100°F 68% 1010 mb
Low level cloud: 5%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 07
May		01:00

SE
SE

 10 / 11 mph 86 / 98°F 74% 1009 mb
Low level cloud: 59%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 11 / 14 mph 85 / 95°F 77% 1009 mb
Low level cloud: 60%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 11 / 15 mph 86 / 91°F 68% 1010 mb
Low level cloud: 23%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SE
SE

 10 / 11 mph 89 / 96°F 62% 1011 mb
Low level cloud: 15%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

 9 / 10 mph 92 / 102°F 60% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 13 / 15 mph 92 / 105°F 62% 1008 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 14 / 16 mph 90 / 103°F 65% 1008 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 12 / 13 mph 88 / 99°F 66% 1010 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May		01:00

SSE
SSE

 8 / 9 mph 87 / 96°F 69% 1010 mb
Low level cloud: 14%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSE
SSE

 6 / 7 mph 85 / 94°F 70% 1009 mb
Low level cloud: 34%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SE
SE

 4 / 5 mph 88 / 91°F 67% 1011 mb
Low level cloud: 42%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSE
SSE

 6 / 7 mph 90 / 97°F 64% 1011 mb
Low level cloud: 4%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

 7 / 8 mph 93 / 105°F 65% 1008 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 10 / 11 mph 93 / 107°F 66% 1007 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 13 / 15 mph 90 / 107°F 73% 1008 mb
Low level cloud: 1%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 15 / 18 mph 87 / 100°F 73% 1010 mb
Low level cloud: 5%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 09
May		01:00

SE
SE

 12 / 25 mph 87 / 99°F 75% 1008 mb
Low level cloud: 38%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
07:00

ESE
ESE

 11 / 23 mph 84 / 94°F 77% 1008 mb
Low level cloud: 40%
Mid level cloud: 14%
High level cloud: 5%
Most Significant Cloud Type: low
46%
0.0 In
13:00

SE
SE

 13 / 26 mph 90 / 106°F 71% 1007 mb
Low level cloud: 14%
Mid level cloud: 9%
High level cloud: 19%
Most Significant Cloud Type: low
19%
0.0 In
19:00

SE
SE

 10 / 21 mph 91 / 111°F 75% 1008 mb
Low level cloud: 33%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
38%
0.0 In
Fri 10
May		01:00

ESE
ESE

 12 / 25 mph 85 / 95°F 76% 1008 mb
Low level cloud: 40%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
07:00

E
E

 12 / 25 mph 83 / 91°F 76% 1010 mb
Low level cloud: 37%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
13:00

ESE
ESE

 17 / 37 mph 92 / 107°F 65% 1009 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
19:00

ESE
ESE

 12 / 25 mph 90 / 107°F 73% 1009 mb
Low level cloud: 35%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
Sat 11
May		01:00

ESE
ESE

 15 / 31 mph 87 / 100°F 77% 1009 mb
Low level cloud: 56%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
58%
0.0 In
07:00

ESE
ESE

 14 / 29 mph 85 / 94°F 76% 1011 mb
Low level cloud: 32%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.1 In
13:00

ESE
ESE

 14 / 29 mph 91 / 106°F 67% 1009 mb
Low level cloud: 4%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
7%
0.1 In
19:00

SE
SE

 9 / 19 mph 93 / 117°F 74% 1009 mb
Low level cloud: 10%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.2 In
Sun 12
May		01:00

SE
SE

 10 / 22 mph 87 / 100°F 75% 1009 mb
Low level cloud: 30%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
36%
0.0 In
07:00

SE
SE

 8 / 16 mph 85 / 95°F 76% 1011 mb
Low level cloud: 50%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.3 In
13:00

SSE
SSE

 9 / 19 mph 93 / 114°F 69% 1009 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
19:00

SSE
SSE

 11 / 23 mph 91 / 109°F 74% 1008 mb
Low level cloud: 4%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
0.0 In
Mon 13
May		01:00

SE
SE

 11 / 22 mph 86 / 99°F 79% 1009 mb
Low level cloud: 8%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
0.2 In
07:00

SSE
SSE

 7 / 14 mph 87 / 97°F 69% 1010 mb
Low level cloud: 25%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
34%
0.1 In
13:00

SSE
SSE

 9 / 19 mph 93 / 116°F 72% 1008 mb
Low level cloud: 5%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
9%
0.2 In
19:00

S
S

 9 / 20 mph 93 / 115°F 70% 1008 mb
Low level cloud: 4%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
33%
0.0 In
Tue 14
May		01:00

SSE
SSE

 9 / 19 mph 88 / 104°F 79% 1008 mb
Low level cloud: 15%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
21%
0.3 In
07:00

SSW
SSW

 4 / 8 mph 87 / 98°F 72% 1009 mb
Low level cloud: 60%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
64%
0.1 In
13:00

SSE
SSE

 6 / 13 mph 94 / 114°F 64% 1007 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
19:00

SSW
SSW

 13 / 28 mph 91 / 111°F 75% 1008 mb
Low level cloud: 6%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.1 In
Wed 15
May		01:00

S
S

 11 / 23 mph 86 / 95°F 71% 1007 mb
Low level cloud: 52%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
07:00

WSW
WSW

 1 / 1 mph 87 / 100°F 75% 1009 mb
Low level cloud: 4%
Mid level cloud: 20%
High level cloud: 5%
Most Significant Cloud Type: medium
30%
0.8 In
13:00

SSE
SSE

 7 / 15 mph 94 / 113°F 63% 1006 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
0.0 In
19:00

S
S

 13 / 28 mph 89 / 108°F 77% 1007 mb
Low level cloud: 3%
Mid level cloud: 24%
High level cloud: 2%
Most Significant Cloud Type: medium
33%
0.1 In
Thu 16
May		01:00

S
S

 9 / 20 mph 88 / 100°F 70% 1007 mb
Low level cloud: 72%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
77%
0.0 In
07:00

WSW
WSW

 9 / 18 mph 86 / 98°F 78% 1007 mb
Low level cloud: 25%
Mid level cloud: 20%
High level cloud: 12%
Most Significant Cloud Type: low
33%
0.3 In
13:00

SSE
SSE

 8 / 16 mph 94 / 114°F 65% 1007 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
19:00

SW
SW

 8 / 16 mph 93 / 117°F 76% 1005 mb
Low level cloud: 9%
Mid level cloud: 46%
High level cloud: 99%
Most Significant Cloud Type: medium
75%
0.3 In
Fri 17
May		01:00

SSE
SSE

 10 / 21 mph 88 / 101°F 72% 1008 mb
Low level cloud: 41%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
45%
0.0 In
07:00

WSW
WSW

 12 / 26 mph 80 / 87°F 87% 1007 mb
Low level cloud: 38%
Mid level cloud: 44%
High level cloud: 62%
Most Significant Cloud Type: low
60%
0.8 In
13:00

SSE
SSE

 8 / 17 mph 93 / 112°F 65% 1008 mb
Low level cloud: 8%
Mid level cloud: 16%
High level cloud: 22%
Most Significant Cloud Type: low
16%
0.0 In
19:00

SSW
SSW

 12 / 26 mph 86 / 99°F 79% 1005 mb
Low level cloud: 31%
Mid level cloud: 18%
High level cloud: 32%
Most Significant Cloud Type: low
41%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure