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Perth Weather Forecast

Temperature, wind, rain and more for Perth

Western Australia, Australia

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 18
Sep		11:00

WSW
WSW

 11 / 12 mph 63 / 63°F 52% 1022 mb
Low level cloud: 82%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

 11 / 13 mph 63 / 61°F 60% 1021 mb
Low level cloud: 72%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SW
SW

 12 / 14 mph 61 / 60°F 57% 1022 mb
Low level cloud: 83%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SW
SW

 8 / 11 mph 58 / 56°F 69% 1024 mb
Low level cloud: 84%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

WSW
WSW

 4 / 6 mph 57 / 57°F 73% 1024 mb
Low level cloud: 61%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 19
Sep		02:00

SW
SW

 3 / 5 mph 57 / 57°F 79% 1023 mb
Low level cloud: 91%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SSE
SSE

 4 / 6 mph 56 / 56°F 86% 1024 mb
Low level cloud: 57%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SE
SE

 4 / 4 mph 60 / 59°F 80% 1026 mb
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSW
SSW

 4 / 5 mph 67 / 65°F 63% 1026 mb
Low level cloud: 29%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SW
SW

 9 / 10 mph 69 / 67°F 56% 1024 mb
Low level cloud: 48%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

SSW
SSW

 8 / 9 mph 67 / 65°F 68% 1025 mb
Low level cloud: 12%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

S
S

 6 / 8 mph 60 / 60°F 85% 1027 mb
Low level cloud: 2%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SE
SE

 4 / 6 mph 58 / 58°F 90% 1026 mb
Low level cloud: 10%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Perth:

The next 7 day outlook for Perth shows the average daytime maximum temperature will be around 25°C, with a high for the week of 30°C expected on the afternoon of Thursday 25th. The average minimum temperature will be 14°C, dipping to its lowest on the morning of Saturday 20th at 12°C. The coming week will remain predominantly dry. 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