Weather forecast for Perth effective as of 5:00 PM Monday December 25:
Explanatory notes:
Scroll down below this section for forecast.
Figure 1.Surface synoptic chart at 06 UTC(2 PM local time today).Image courtesy of the Australian Bureau of Meteorology(BOM).
Figure 2.Key features identified on True Colour RGB satellite image at around 07:00 UTC(3 PM local time today).Satellite image courtesy of the Japanese Meteorological Agency(JMA).
Figure 3:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).
The precis(summary) forecasts and "chance of any rain forecasts" are for Perth City while the detailed description underneath the precis forecasts is for the forecast area of Perth but the chance of rain forecasts in the detailed description underneath the precis forecasts is the average for the forecast area
The forecast:
Explanatory notes:
Scroll down below this section for forecast.
The west coast trough is moving inland with the marine layer advecting over the region.
Cooler air mass lies over the region from Tuesday with the west coast trough inland resulting in maximum temperatures in the mid 20s.Mostly sunny conditions.
The sea breezes will be particularly strong on Wednesday,Thursday and Saturday with a south to southeasterly pressure gradient "bending" with solar heating.
The air mass over the region warms up again towards the end of the week with warm air advection as a west coast trough forms near the west coast.
Cooler air mass lies over the region from Tuesday with the west coast trough inland resulting in maximum temperatures in the mid 20s.Mostly sunny conditions.
The sea breezes will be particularly strong on Wednesday,Thursday and Saturday with a south to southeasterly pressure gradient "bending" with solar heating.
The air mass over the region warms up again towards the end of the week with warm air advection as a west coast trough forms near the west coast.
unless otherwise stated.
Time of day:
Cooler months(May 1-September 30):
Early hours:12AM-7AM
Morning:before 12PM
Middle of the day:11AM to 1PM
Afternoon:1PM to 5PM
Evening:5PM to 7PM
Night:After 6:30 PM.
About forecasts.
Time of day:
Cooler months(May 1-September 30):
Early hours:12AM-7AM
Morning:before 12PM
Middle of the day:11AM to 1PM
Afternoon:1PM to 5PM
Evening:5PM to 7PM
Night:After 6:30 PM.
About forecasts.
The forecast:
The rest of Monday December 25:
Clear.
Chance of any rain:0%
Tuesday December 26:
17-27 Degrees Celsius
Mostly sunny.
Rainfall amount:0 mm.
Chance of any rain:0%
Wednesday December 27:
15-26 Degrees Celsius
Becoming sunny.Breezy in the afternoon and evening.
Chance of any rain:0%
Rainfall amount:0 mm.
Thursday December 28:
15-29 Degrees Celsius
Sunny.Breezy in the afternoon and evening.
Chance of any rain:0%
Rainfall amount:0 mm.
Friday December 29:
16-31 Degrees Celsius
Sunny.
Chance of any rain:0%
Rainfall amount:0 mm.
Saturday December 30:
18-32 Degrees Celsius
Mostly sunny.Breezy in the afternoon and evening.
Chance of any rain:10%
Rainfall amount:0 mm.
Sunday December 31:
19-31 Degrees Celsius
Mostly sunny.
Chance of any rain:10%
Rainfall amount:0 mm.
Monday January 1:
18-32 Degrees Celsius
Mostly sunny.
Chance of any rain:10%
Rainfall amount:0 mm.
Weather forecast produced at 5:00 PM Monday December 25.Some of the weather icons courtesy of the US National Weather Service.
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