7 day weather forecast

      Effective as of 4:00 PM Saturday June 5 2021

Explanatory notes:

The ridge of high pressure over the region has lead to fine conditions with pleasant afternoons but cold mornings with good radiational cooling overnight.  Minimum temperatures were often lower than NWP and OCF guidance due to boundary layer decoupling.

A cold front brings some showers on Sunday with showers first developing over the far southwest of the metropolitan area, near Mandurah, Rockingham from tonight with low level wind convergence, showers most likely stay south of the city until the cold front approaches th region during the day.

The tropical low near the Christmas and Cocos Islands likely evolves into a subtropical low pressure system as it gets caught ahead of an upper level trough and lies to the west of Perth towards the middle of the next working week bringing showers and possible thunderstorms and also possible gusty winds but plenty of uncertainty this far out.

Thereafter, showery conditions likely persist through the end of the forecast period with generally onshore flow with embedded troughs and cold fronts but some uncertainty on the details this far out.

The rest of Saturday June 5:

City:

Mostly clear.

Chance of any rain:5%

Perth Metropolitan Area:

Mostly clear.A medium(40%) chance of showers over the far southwest at night, a near zero chance elsewhere.Light winds.​

Sunday June 6:

City:

7-21  Degrees Celsius

Showers.

Chance of any rain:90%

Amount:1 to 4 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high(90%) chance of showers about southern suburbs at first in the early hours and mornign extending throughout by afternoon.Light winds becoming south-southwesterly at 10-25 km/h in the afternoon becoming southeasterly at 10-20 km/h night.

Monday June 7:

City:

7-19  Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Winds east-southeasterly at 15-25 km/h.

Tuesday June 8:

City:

7-18  Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.High clouds.Winds east-northeasterly at 20-30 km/h.

Wednesday June 9:

City:

10-19  Degrees Celsius

Showers.

Chance of any rain:90%

Amount:3 to 10 mm

Perth Metropolitan Area:

Mostly cloudy.A very high(80%) chance of showers.The chance of a thunderstorm.Winds northeasterly at 25-40 km/h shifting northwesterly later during the day.

Thursday June 10:

City:

12-21  Degrees Celsius

Showers.

Chance of any rain:90%

Amount:4 to 12 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high(90%) chance of showers.Winds northwesterly at 25-40 km/h shifting southwesterly at 15-30 km/h during the day.

Friday June 11:

City:

11-19  Degrees Celsius

Showers.

Chance of any rain:80%

Amount:3 to 10 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A high(80%) chance of showers.Winds westerly at 10-20 km/h.

Saturday June 12:

City:

10-19  Degrees Celsius

Showers.

Chance of any rain:70%

Amount:1 to 6 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A high(70%) chance of showers.Winds south-southwesterly at 10-20 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).