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Sully Weather Forecast

Temperature, wind, rain and more for Sully

The Vale Of Glamorgan, United Kingdom

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 12
May		09:00

ENE
ENE

 9 / 11 mph 57 / 54°F 92% 1010 mb
Low level cloud: 72%
Mid level cloud: 44%
High level cloud: 33%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

 11 / 15 mph 61 / 60°F 84% 1010 mb
Low level cloud: 65%
Mid level cloud: 46%
High level cloud: 55%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

 8 / 13 mph 62 / 60°F 83% 1011 mb
Low level cloud: 34%
Mid level cloud: 44%
High level cloud: 51%
Most Significant Cloud Type: low
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SE
SE

 9 / 13 mph 62 / 60°F 77% 1012 mb
Low level cloud: 8%
Mid level cloud: 24%
High level cloud: 12%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 5 / 10 mph 54 / 53°F 88% 1014 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
May		00:00

ENE
ENE

 8 / 15 mph 52 / 49°F 91% 1015 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 12%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 9 / 18 mph 50 / 46°F 91% 1016 mb
Low level cloud: 22%
Mid level cloud: 21%
High level cloud: 8%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 9 / 14 mph 53 / 49°F 89% 1017 mb
Low level cloud: 8%
Mid level cloud: 13%
High level cloud: 12%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 11 / 13 mph 61 / 59°F 79% 1019 mb
Low level cloud: 34%
Mid level cloud: 12%
High level cloud: 20%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

 10 / 13 mph 66 / 64°F 69% 1019 mb
Low level cloud: 57%
Mid level cloud: 17%
High level cloud: 15%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 11 / 15 mph 65 / 64°F 77% 1018 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 7 / 13 mph 62 / 61°F 86% 1018 mb
Low level cloud: 12%
Mid level cloud: 40%
High level cloud: 76%
Most Significant Cloud Type: medium
76%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NE
NE

 9 / 19 mph 56 / 54°F 89% 1019 mb
Low level cloud: 18%
Mid level cloud: 24%
High level cloud: 5%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Sully:

The forecast for Sully in the coming week is predicting the average daytime maximum temperature will be around 19°C, with a high for the week of 20°C expected on the afternoon of Sunday 18th. The mean minimum temperature will be 10°C, dipping to its lowest on the morning of Sunday 18th at 8°C. Expect the week ahead to have mostly dry days although Monday 12th and Tuesday 13th are likely to see a little rain. Current predictions suggest Tuesday 18th will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate.

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