worldweather28°Cexceptionally warm
usually 16°C–20°C
warmer than 99% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
Weather in Sydney - 14-day forecast
Detailed weather forecast for Sydney, Australia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Sydney
today☀️
28°💧 0.6 mm
Sun☀️
22°💧 3.5 mm
Mon🌧️
19°💧 2.9 mm
Tue🌧️
16°💧 0.1 mm
Wed🌧️
17°💧 0.5 mm
Thu🌤️
15°💧 0.4 mm
Fri☁️
17°💧 11.3 mm
Sat🌤️
17°💧 5.9 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Sydney, the forecast high is 28°C. Typical daytime temperatures at this time of year range from 16°C to 20°C, so it will be exceptionally warm. It is warmer than 99% of similar days.
22°Cexceptionally warm
usually 16°C–21°C
warmer than 90% of similar days
night: exceptionally warm
rain: more rain than usual
wind: stronger than usual
19°Cnear normal
usually 16°C–21°C
night: warmer than usual
rain: more rain than usual
wind: stronger than usual
16°Ccooler than usual
usually 16°C–21°C
cooler than 88% of similar days
night: near normal
rain: typical rainfall
wind: stronger than usual
17°Ccooler than usual
usually 17°C–21°C
cooler than 73% of similar days
night: warmer than usual
rain: typical rainfall
wind: exceptionally strong
15°Cexceptionally cool
usually 17°C–21°C
cooler than 96% of similar days
night: near normal
rain: typical rainfall
wind: typical
17°Ccooler than usual
usually 17°C–21°C
cooler than 76% of similar days
night: warmer than usual
rain: exceptionally wet
wind: lighter than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 19°C by day. The coolest year was 2008 (15°C) and the warmest was 2024 (23°C). The current forecast averages 19°C - higher than in 67% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Sydney
Sydney 30 & 45-day weather - long-range outlook
Next 16 days · forecast
19°
around 15° at night · days with rain: 8
Weeks 3-4 · avg for September
22°
around 12° at night · rain chance 37%
Weeks 5-7 · avg for October
25°
around 15° at night · rain chance 44%
The 30 & 45-day outlook for Sydney: the next 16 days are a numerical forecast updated daily - on average 19° by day and 15° at night. Further out we rely on multi-year climate averages: around 22° in September, and about 25° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Sydney
Saturday5 September 2026
☀️28°clear sky
Sunday6 September 2026
☀️22°clear sky
Monday7 September 2026
🌧️19°moderate rain
Tuesday8 September 2026
🌧️16°light rain
Wednesday9 September 2026
🌧️17°light rain
Thursday10 September 2026
🌤️15°a few clouds
Friday11 September 2026
☁️17°broken clouds
Saturday12 September 2026
🌤️17°scattered clouds
Sunday13 September 2026
☀️20°clear sky
Monday14 September 2026
☁️23°overcast clouds
Tuesday15 September 2026
🌤️25°scattered clouds
Wednesday16 September 2026
🌧️21°moderate rain
Thursday17 September 2026
🌧️16°moderate rain
Friday18 September 2026
🌤️20°scattered clouds
Saturday19 September 2026
🌧️14°light rain
Sunday20 September 2026
☁️16°broken clouds
UV index in Sydney - is it safe to sunbathe?
Today the UV index in Sydney is 6 (high) - unprotected fair skin can burn in about 35 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Sea temperature - Sydney
Water today
18°C
Week avg
18°C
Waves today
0.7 m
How's the water?
cold
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Sydney
Air quality in Sydney is currently very good. Fine particulate PM2.5: 6.9 µg/m³, PM10: 7 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Sydney | 6.9 | 7 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 11:00).
Sydney weather through the year
Upcoming public holidays in Australia: Christmas Day — 25 December · St. Stephen's Day — 28 December · New Year's Day — 1 January.
Nearby and related places
FAQ - Sydney weather
What is the weather like in Sydney today?
Today it is about 28° during the day and 21° at night, clear sky.
How far ahead can I check the forecast for Sydney?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.