Measurements:
°C
°F
Sydney
80°F
SW 24 mph
Feels like: 82°F
Precip: 0%
World Resorts Australia Sydney Weather May Weather in Sydney

Sydney Weather: May

Average Day Temperature: 68.3°F
Average Night Temperature: 58.1°F
Sea Water Temperature: 71.5°F
Number of Sunny Days: 18 days
Sunshine Hours: 10.1 - 10.8 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.4 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 78°F. The lowest night temperature was 51°F. The average values for day and night temperatures during May were 67.4°F и 60.6°F respectivly.

Sydney Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Sydney was 71.4°F. The maximum and minimum values were 68.2°F and 74.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Sydney is 1.4 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 9.8 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sydney in May is 7.1 hours.

Best Time to Visit Sydney
The most sunny months:
July 19 days
May 18 days
August 18 days
The most warm months:
January 81.5 °F
February 80.7 °F
March 79.2 °F
Warmest sea temperature:
February 76.8 °F
March 76.3 °F
January 75.8 °F
The most cold months:
July 63.0 °F
June 63.3 °F
August 64.6 °F
The most rainy months:
June 4 days
March 4 days
November 3 days
The most windy months:
January 11 mph
December 11 mph
November 11 mph

Sydney on the Weather Map

Australia Resorts:
NAME
Adelaide +76
Brisbane +86
Cairns +88
Canberra +92
Darwin +90
Fraser +84
Gold Coast +80
Melbourne +74
Perth +74
Sydney +80
Tasmania +54
24 Hours Weather Forecast
Sydney
Local time: 16:56
05 dec, friday
1800 80°F
SW
24 mph
2100 84°F
SW
19 mph
06 dec, saturday
0000 76°F
S
10 mph
0300 74°F
S
7 mph
0600 78°F
SE
7 mph
0900 90°F
S
6 mph
1200 96°F
S
11 mph
1500 96°F
S
16 mph