Sydney weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: April – May, July – February
What is the weather like in Sydney in May?
In May, Sydney is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. The sea averages 21.2 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain falls on about 7 days, adding up to 50 mm. All in all, May is an excellent month for a holiday in Sydney.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 10 h 24 min06:39 – 17:03
- UV index
- 3 · moderateclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 14 km/haverage daily peak
- Cloud cover
- 42 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+10Australia/Sydney
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 30 %80 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Swimwear
- Sunscreen
- A jumper for the evenings
Sydney in May: quick answers
Is Sydney hot in May?
No. In May, Sydney is mild: daytime highs average 19 °C and nights drop to about 13 °C.
Can you swim in Sydney in May?
Yes. In May the sea averages 21.2 °C – refreshing for a swim.
Does it rain much in Sydney in May?
Rain falls on about 7 days, adding up to 50 mm.
Sydney month by month
The whole year in SydneyAll destinations: Australia
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)