7 day weather forecast

Effective as of 12:00 PM Saturday September 22

Explanatory notes:

West coast trough to lie near the west coast but slightly inland during the weekend,afternoon sea breezes,the chance of patches of fog early until Monday with radiation cooling of moist maritime air brought in by afternoon sea breezes.Large differences between maximum temperature between coastal and inland coastal plain areas.

Cooler air mass moves over the region from Tuesday.

The rest of Saturday September 22:

Max:27 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,high clouds.Winds south-southwesterly at 10-20 km/h in the afternoon becoming light at night.

Maximum temperatures ranging from around 24 Degrees Celsius over coastal areas to around 27 Degrees Celsius over inland coastal plain areas,around 27 Degrees Celsius near the city.

Sunday September 23:

9-25 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,high clouds.Patches of fog possible early.Light winds tending south-southwesterly at 10-20 km/h during the afternoon.Maximum temperatures ranging from around 21 Degrees Celsius over coastal areas to around 26 Degrees Celsius over inland coastal plain areas,around 25 Degrees Celsius near the city.

Monday September 24:

10-23 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0  mm.

Perth metropolitan area:

Mostly sunny.Patches of fog possible early.Light winds becoming southwesterly at 10-20 km/h during the afternoon.

Tuesday September 25:

11-21 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0  mm.

Perth metropolitan area:

Partly cloudy.Patches of fog possible early most likely over the hills.Light winds tending southwesterly at 15-25 km/h during the afternoon.

Wednesday September 26:

8-20 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0  mm.

Perth metropolitan area:

Partly cloudy.Light winds tending southwesterly at 10-20 km/h during the afternoon.

Thursday September 27:

9-21 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0  mm.

Perth metropolitan area:

Partly cloudy.Light winds tending southwesterly at 10-20 km/h during the afternoon.

Friday September 28:

10-22 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0  mm.

Perth metropolitan area:

Mostly sunny.Light winds tending southwesterly at 10-25 km/h during the 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 3.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).

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 4:20 PM Wednesday July 11.Weather icons courtesy of the US National Weather Service.