Sydney 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
26
27
low
28
med
29
high
30
high
31
Apr 1
low
2
3
4
5
low
6
7
8
9
10
med
11
12
low
13
low
14
low
15
16
17
med
18
19
low
20
low
21
22
Chance of rainfall within district
nil
< 25%
low
25% to 50%
med
50% to 75%
high
≥ 75%

Issue Notes

The hemispheric long wave pattern has remained stable in recent weeks. There are six main troughs. Currently the most significant troughs are near the longitudes of South Africa, Western Australia, the south Pacific, South America, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 March to 4 April, 10 April to 14 April, and 23 April to 27 April. Rain events originating in the tropics and moving south are possible about 1 April to 5 April, 18 April to 22 April, and 22 April to 26 April.
Over Western Australia the strongest cold fronts should occur about 30 March to 3 April, 19 April to 23 April, and 23 April to 27 April.

Issued Mar 24

Forecast Explanation

This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.

The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.

In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.

Display Your Local Weather

Weather News

Cyclone Veronica poses the biggest risk to the Pilbara in a decade, authorities warn

00:33 EDT

Western Australia's Pilbara coast is being pummelled by gale-force winds and torrential rain from Cyclone Veronica, with authorities warning the system poses the biggest risk to the region in a decade.

Cyclone Trevor's monster evacuation effort in Northern Territory 'almost certainly saved a life'

23:37 EDT

The biggest evacuation effort since Cyclone Tracy has seen all Territorians safely through a category four cyclone and "almost certainly saved life".

Northern Territory's Barkly region prepares for tropical low from Cyclone Trevor

18:01 EDT

Rekiara had hardly seen a drop of rain in her young life before today.