7 day weather forecast

Effective as of 4:00 AM Wednesday May 26 2021

Explanatory notes:

Becoming warmer with the high pressure system entering the Great Australian Bight/southern Australia leading to northeasterly winds.

On Friday a cold front and trough system arrives from the west bringing showers and the possibility of thunderstorms with a moist and unstable atmosphere ahead of an upper level trough.

On Saturday, the cut off low lies to the southeast, showery conditions with the possibility of thunderstorms for Perth with the moist flow ahead of the upper level trough.

Showery conditions continue on Sunday in the south-southwesterly air stream.

Wednesday May 26:

City:

5-20  Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.High clouds.Winds northeasterly at 15-25 km/h.

Thursday May 27:

City:

10-24  Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.High clouds.Winds northeasterly at 15-25 km/h becoming north-northeasterly from late morning becoming light later in the afternoon.

Friday May 28:

City:

11-23  Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:80%

Amount:2 to 10 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A high (80%) chance of showers.The chance of a thunderstorm. Winds north-northeasterly at 10-25 km/h shifting northwesterly in the afternoon.

Saturday May 29:

City:

14-20  Degrees Celsius

Showers and thunderstorms.

Chance of any rain:100%

Amount:10 to 25 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high(100%) chance of showers.The chance of a thunderstorm.Winds northwesterly at 15-25 km/h shifting westerly during the day.

Sunday May 30:

City:

9-18  Degrees Celsius

Showers.

Chance of any rain:70%

Amount:2 to 8 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A high(70%) chance of showers.Winds south-southwesterly at 20-30 km/h.

Monday May 31:

City:

9-18  Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 4 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A medium(40%) chance of showers.Winds south-southwesterly at 15-25 km/h.

Tuesday June 1:

City:

9-20  Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 2 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A slight(30%) chance of showers.Winds southerly at 15-25 km/h.

Charts:

                                   

Figure 1.Surface synoptic chart.Image courtesy of the Australian Bureau of Meteorology(BOM).

 2. 

Figure 2.Key features identified on True Colour RGB satellite image.Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image. Image courtesy of the Australian Bureau of Meteorology(BOM)

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

No liabilities held from information consumed on this site. Weather icons are from the US National Weather Service.Some information on this site is from the Australian Bureau of Meteorology (BOM).