Sydney in May
May in Sydney is peak autumn, and the weather reflects it. You're looking at average daily highs of 18.8 degrees.
Expect the mercury to hit around 18.8 degrees during the day and settle at 11.4 degrees after dark. The temperature stays pretty consistent through the day. Manageable with a decent layer, and you'll warm up by midday.
At 18.8 degrees, May sits 3.4 degrees below the annual average of 22.2 degrees.
Rainfall in May averages 160mm over about 16 days. That means roughly a 53% chance of rain on any given day, so definitely bring rain gear.
Sunshine-wise, May delivers around 9.9 MJ/m2 of daily solar radiation. UV sits in the moderate category. Sunscreen is still wise, especially if you burn easily.
At 4.2/10 on the Comfort Score, May is middle of the road.
For your suitcase: a decent jumper or fleece, and waterproof gear.
Check the data table below for the full picture, or compare Sydney in May with another destination.
May at a Glance
Temperature Range
Daily temperature range in May. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Layered clothing for mild to cool conditions
- Proper rain gear for frequent showers
Coming From Overseas?
How May in Sydney stacks up against major cities around the world.
About 1 degrees warmer and considerably wetter.
About 4 degrees cooler and considerably wetter.
About 5 degrees cooler and considerably wetter.
How May Compares
Sydney's monthly climate at a glance. May is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 26.6 | 19.7 | 118mm | 7.8 |
| Feb | 26.5 | 19.5 | 82mm | 7.8 |
| Mar | 25.5 | 17.2 | 59mm | 8.9 |
| Apr | 21.9 | 14.0 | 160mm | 7.2 |
| May | 18.8 | 11.4 | 160mm | 4.2 |
| Jun | 16.0 | 7.7 | 140mm | 2.6 |
| Jul | 16.1 | 8.4 | 38mm | 3.9 |
| Aug | 19.4 | 10.1 | 36mm | 6.7 |
| Sep | 22.2 | 11.0 | 60mm | 9.0 |
| Oct | 21.7 | 12.6 | 41mm | 8.8 |
| Nov | 25.2 | 17.6 | 121mm | 8.7 |
| Dec | 26.8 | 19.1 | 53mm | 8.8 |