Sydney swings 32°C across the year, from 23°C highs in July to -9°C lows in February, and December is usually the wettest month in a year that brings about 1505 mm of precipitation. Over 10 years of recorded weather it averages 26 days a year at 25°C or above, 1 of them at 30°C or above, 132 frost nights, and rain on 148 days.
Warmest month
July
23°C average high
Coldest month
February
-9°C average low
Wettest month
December
1505 mm a year
Comfortable
4 months
June, July, August and September
Residents
106,000
share this forecast
Most accurate here
European
90/100 CheckWeather Score
Warm days
26 days
a year at 25°C or above
Frost nights
132 nights
a year below 0°C
Rain days
148 days
a year with 1 mm or more
Day counts are from the ERA5 reanalysis for Sydney’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
Env. Canada, European, American side by side around Sydney and nearby towns.Live rain radar →
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Sydney hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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Sydney 10-day forecast, out to 14 days
where the models agree, and where they split
Today
Snow
8°3°
models agree
Tomorrow
Clear
14°4°
models agree
Mon
Cloudy
14°8°
models agree
Tue
Drizzle
9°3°
models agree
Wed
Cloudy
6°3°
models agree
Thu
Cloudy
9°2°
models agree
Fri
Cloudy
12°6°
±2°
Sat
Cloudy
9°4°
±3°
Sun
Partly cloudy
9°3°
±3°
Mon
Partly cloudy
12°5°
±5°
Tue
Light rain
13°9°
±6°
Wed
Light rain
14°8°
models agree
Thu
Cloudy
10°4°
±8°
Fri
Cloudy
8°2°
±7°
Sydney, Nova Scotia is at its warmest in Jul (average highs near 23°C) and coldest in Feb (lows around -9°C), with roughly 1505 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Sydney right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
-1°
-7°
Feb
-1°
-9°
Mar
1°
-5°
Apr
6°
-1°
May
13°
4°
Jun
18°
10°
Jul
23°
15°
Aug
22°
15°
Sep
19°
13°
Oct
14°
7°
Nov
7°
2°
Dec
3°
-3°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Sydney's weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+0.5°C
Around Sydney, the difference between 1995-2004 and 2015-2024 is +0.5°C, within the normal swing from year to year.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 25°C
3 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
6 fewer nights a year
2015-2024 against 1995-2004, below 0°C. Within the normal year-to-year swing
Average wind
−2%
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >25°C vs avg
Frost nights vs avg
Wind vs avg
1995
−0.2°C
+8
+5
−0%
1996
−0.4°C
−2
+2
+1%
1997
−1.3°C
−3
+20
+4%
1998
±0.0°C
−3
−2
−0%
1999
+1.0°C
+2
−16
+2%
2000
±0.0°C
−3
−0
+2%
2001
±0.0°C
+2
+16
−6%
2002
−0.7°C
+3
+19
+4%
2003
−0.5°C
−2
−0
−3%
2004
−1.0°C
+1
+9
+4%
2005
−0.1°C
+3
+3
−4%
2006
+0.6°C
−6
−10
−2%
2007
−0.5°C
−3
+13
+5%
2008
−0.1°C
−6
−0
+1%
2009
−0.5°C
−0
−3
+2%
2010
+0.9°C
−2
−30
−0%
2011
+0.1°C
−7
−9
+4%
2012
+1.2°C
+3
−11
−2%
2013
+0.1°C
−1
+11
+1%
2014
−0.2°C
−5
+7
−3%
2015
−0.9°C
−2
+11
−2%
2016
+0.1°C
−6
−0
+1%
2017
+0.1°C
−2
+4
−0%
2018
−0.3°C
+13
+15
+4%
2019
−0.8°C
−0
+9
−0%
2020
+0.3°C
+4
−5
−2%
2021
+1.0°C
+4
−20
+1%
2022
+0.9°C
+4
−2
−0%
2023
+0.8°C
+1
−12
−6%
2024
+1.1°C
+16
−15
−7%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Sydney, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Sydney?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
90
/100rank #1
83±0.9°C
95±2.6 km/h
9597% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
85
/100rank #2
86±0.8°C
97±1.7 km/h
7687% hit
Environment and Climate Change CanadaDorval, Québec, Canada
American
83
/100rank #3
86±0.8°C
96±1.8 km/h
7184% hit
NOAA / NCEP (United States)College Park, Maryland, USA
The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.
Env. CanadaGEM model
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separately
Day
Temperature
Rain
Today
±1°7° to 9°
±6%94% to 100% chance
Tomorrow
±1°14° to 15°
models agree0% to 0% chance
Mon
±2°14° to 15°
±26%13% to 39% chance
Tue
±2°8° to 10°
±24%19% to 43% chance
Wed
±1°6° to 7°
±8%3% to 11% chance
The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.
Sunrise and sunset in Sydney
today, local time
Sunrise
07:30
Sunset
17:58
Daylight
10h 28m
Common questions
What's the weather in Sydney today?
Saturday, October 24: Env. Canada, the European and the American model agree on a high near 8° in Sydney today. Tomorrow: clear, around 14°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Sydney today or tomorrow?
Rain looks unlikely in Sydney on Sunday, October 25: no model gives more than 0% (Env. Canada 0%, European 0%, American 0%). On Saturday, October 24 the highest chance of rain from any model is 100%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Sydney?
Over the last 30 days, the European model has been the most accurate for Sydney (CheckWeather Score 90/100), ahead of the Env. Canada at 85. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Sydney?
July is typically the warmest month in Sydney, with average highs around 23°C.
How cold does Sydney get?
The coldest month in Sydney is February, when overnight lows average about -9°C.
How much rain does Sydney get?
Sydney sees roughly 1505 mm of precipitation a year, with December usually the wettest month.
Is Sydney getting warmer?
Not clearly. In NASA's reanalysis for the area around Sydney, the difference between 1995-2004 and 2015-2024 is 0.5°C, within the normal swing from year to year.
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