7 day weather forecast

 Effective as of 4:00 PM Thursday September 17 2020

Explanatory notes:

P

The rest of Thursday September 17:

City:

High clouds (partly cloudy).

Chance of any rain:0%

Perth Metropolitan Area:

High clouds (partly cloudy).Winds easterly at 10-20 km/h.

Friday September 18:

City:

8-23 Degrees Celsius

Sunny

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds east-northeasterly at 15-30 km/h becoming northeasterly at 20-30 km/h in the morning shifting northwesterly at 10-20 km/h from early afternoon, westerly in the afternoon and becoming light from evening.

Saturday September 19:

City:

10-18 Degrees Celsius

Showers.

Chance of any rain:100%

Amount:3 to 8 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high (100%) chance of showers.Winds northwesterly at 10-20 km/h shifting southwesterly at 20-30 km/h early in the morning increasing to 25-40 km/h from afternoon.

Sunday September 19:

City:

9-17 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:2 to 5 mm

Perth Metropolitan Area:

Partly cloudy.A very high (90%) chance of showers.Winds southwesterly at 20-35 km/h.

Monday September 20:

City:

8-18 Degrees Celsius

Possible light shower

Chance of any rain:30%

Amount:0 to 0.4 mm

Perth Metropolitan Area:

Partly cloudy.A slight (30%) chance of light showers.Winds southeasterly at 10-20 km/h tending southwesterly at 10-20 km/h during the day.

Tuesday September 21:

City:

8-22 Degrees Celsius

Partly cloudy

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight (20%) chance of a shower.Light winds tending south-southwesterly at 10-20 km/h.

Wednesday September 22:

City:

11-28 Degrees Celsius

Sunny.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds easterly at 16-25 km/h becoming northeasterly in the morning becoming light from afternoon.

Charts:

Figure 1.Surface synoptic chart at 12 UTC(8 PM local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM). 

Figure 2.Key features identified on True Colour RGB satellite image at around 06:00 UTC(2 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 12 UTC(8 PM 
local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Some data on this site is sourced from the Australian Bureau of Meteorology(BOM). Weather icons from the US National Weather Service.