Sydney, Australia experiences average highs of 21°C (70°F) and lows of 15°C (59°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Sydney, Australia Weather & Climate 2026
Monthly climate averages for Sydney, Australia. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Apr–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
8.3/10
Best: January, February, March, April, November
UV Index
6
High
Temperature 21°C / 15°C
Feels Like 22°C / 15°C
Rainy Days 8
Rainfall 66 mm
Sunshine 10 h
Humidity 72%
Wind Speed 17 km/h
Dew Point 13°C
Hottest Month
26°C
January
Avg Low20°C
Rain10days
Coldest Month
10°C
July
Avg High16°C
Rain6days
Driest Month
6days
July
Avg High16°C
Avg Low10°C
Windiest Month
19 km/h
November (Gusts 44)
Sea Temperature
18°C – 23°C
Warmest water: February (
23.3°C
)
Worst Time to Visit
Consider avoiding May, June, July, August due to less favorable weather conditions.
Sun Position
Sunrise 06:59
Daylight 9.9h
Sunset 16:54
Live conditions—
Sydney on the map · live conditions
Sydney, Australia
- Continent
- Oceania
- Country
- Australia
- City
- Sydney
- Population
- 5.6M
- Coordinates
- -33.87°, 151.21°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 22°C
Avg Low 15°C
Rain 8 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 26°C
Avg Low 20°C
Rain 10 days/mo
2/3 best months
Autumn
Mar–May
Avg High 22°C
Avg Low 16°C
Rain 10 days/mo
2/3 best months
Winter
Jun–Aug
Avg High 17°C
Avg Low 10°C
Rain 6 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 26°C / 20°C . Feb: 26°C / 20°C . Mar: 24°C / 19°C . Apr: 22°C / 16°C . May: 19°C / 13°C . Jun: 16°C / 10°C . Jul: 16°C / 10°C . Aug: 17°C / 10°C . Sep: 20°C / 12°C . Oct: 22°C / 15°C . Nov: 23°C / 17°C . Dec: 25°C / 19°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 79 mm. Feb: 88 mm. Mar: 129 mm. Apr: 57 mm. May: 55 mm. Jun: 54 mm. Jul: 63 mm. Aug: 48 mm. Sep: 43 mm. Oct: 62 mm. Nov: 58 mm. Dec: 58 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 74%. Mar: 76%. Apr: 74%. May: 72%. Jun: 73%. Jul: 70%. Aug: 68%. Sep: 66%. Oct: 69%. Nov: 70%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 18 km/h . Mar: 17 km/h . Apr: 14 km/h . May: 14 km/h . Jun: 15 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 18 km/h . Oct: 19 km/h . Nov: 19 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 10h. Mar: 9h. Apr: 9h. May: 8h. Jun: 8h. Jul: 8h. Aug: 9h. Sep: 10h. Oct: 10h. Nov: 11h. Dec: 11h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 22°C . Feb: 23°C . Mar: 23°C . Apr: 22°C . May: 21°C . Jun: 20°C . Jul: 18°C . Aug: 18°C . Sep: 19°C . Oct: 19°C . Nov: 20°C . Dec: 21°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 8. Feb: UV 7. Mar: UV 7. Apr: UV 5. May: UV 4. Jun: UV 3. Jul: UV 3. Aug: UV 4. Sep: UV 6. Oct: UV 7. Nov: UV 8. Dec: UV 8.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Feb 2025 · 26°C | Jan · 26°C |
| Coldest month | Jun 2025 · 9°C | Jul · 10°C |
| Wettest month | Aug 2025 · 148 mm | Mar · 129 mm |
| Windiest month | Nov 2025 · 21 km/h | Nov · 19 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April best
Excellent May
Good June
Good July
Good August
Good September
Good October
Good November best
Excellent December
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 26°C / 20°C | 29°C / 22°C | 10days (79 mm) Wet | 10.3h Excellent | 75% Muggy | 7.9 Very High | Excellent | View Details |
| February best | 26°C / 20°C | 28°C / 22°C | 11days (88 mm) Wet | 10.3h Excellent | 74% Muggy | 7.4 Very High | Excellent | View Details |
| March best | 24°C / 19°C | 26°C / 20°C | 14days (129 mm) Wet | 9.2h Good | 76% Humid | 6.6 High | Excellent | View Details |
| April best | 22°C / 16°C | 22°C / 16°C | 8days (57 mm) Wet | 9.2h Good | 74% Muggy | 5 Moderate | Excellent | View Details |
| May | 19°C / 13°C | 18°C / 12°C | 7days (55 mm) Good | 8.4h Good | 72% Muggy | 3.5 Moderate | Good | View Details |
| June | 16°C / 10°C | 15°C / 8°C | 7days (54 mm) Good | 7.8h Good | 73% Muggy | 3.1 Moderate | Good | View Details |
| July | 16°C / 10°C | 14°C / 7°C | 6days (63 mm) Good | 8.3h Good | 70% Muggy | 3.4 Moderate | Good | View Details |
| August | 17°C / 10°C | 15°C / 8°C | 6days (48 mm) Good | 9h Good | 68% Muggy | 4.2 Moderate | Good | View Details |
| September | 20°C / 12°C | 19°C / 11°C | 6days (43 mm) Good | 10h Excellent | 66% Muggy | 6 High | Good | View Details |
| October | 22°C / 15°C | 22°C / 14°C | 9days (62 mm) Wet | 10.3h Excellent | 69% Muggy | 7.2 Very High | Good | View Details |
| November best | 23°C / 17°C | 24°C / 17°C | 8days (58 mm) Wet | 10.9h Excellent | 70% Muggy | 7.7 Very High | Excellent | View Details |
| December | 25°C / 19°C | 27°C / 19°C | 9days (58 mm) Wet | 11.2h Excellent | 71% Muggy | 8.4 Very High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Sydney are January, February, March, April, November, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Sydney, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Sydney is January, with average daytime highs of 26°C (79°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Sydney is July, with average overnight lows of 10°C (49°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Sydney is March, averaging 129mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Sydney runs through March, February, January, with the heaviest rainfall in March. Based on 10-year averages for Sydney.
Sydney receives approximately 115 sunshine hours per year. The sunniest month is December with around 11 hours. Based on climate data for Sydney.
The least favorable months to visit Sydney are May, June, July, August, primarily due to less favorable weather conditions. For the best conditions, consider January, February, March, April, November instead.
The annual average UV index in Sydney is 6, classified as high. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Sydney is 72%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April average 23°C (73°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Sydney are 17 km/h (11 mph). The windiest month is November with peak winds reaching 19 km/h (12 mph) (gusts up to 44 km/h / 27 mph).
Sydney averages 7 clear-sky days per month with overall cloud cover around 48%. The clearest skies occur in July.
The annual average dew point in Sydney is 13°C (55°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Sydney has a Humid Subtropical climate, classified as Cfa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Sydney ranges from 15°C (59°F) to 22°C (72°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Sydney. It earns a climate score of 7.3/10 with Good.
For June in Sydney, pack Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. With average highs of 16°C (61°F) and 7 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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