Sydney Weather in May
With daytime temperatures of 20°C (68°F) and nighttime lows of 14°C (57°F), May in Sydney brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 79 mm (3.1 in) falls on average.
Rainfall in Sydney in May
Historically, May sees about 11 days of rain, with a monthly average of 79 mm (3.1 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Sydney in May
Sydney has perfect weather in May, with days reaching 20°C (68°F) and nights cooling to 14°C (57°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Sydney in May
With about 180 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.
Wind Speed in Sydney in May
May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in May
At 19°C (66°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Sydney.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Sydney's climate page.
Sydney Temperature in May
Min Temperature
14°C (57°F)
Max Temperature
20°C (68°F)
Water Temperature
19°C (66°F)
Chance of Rain
37%
Precipitation
79 mm (3.1 in)
Rainy days
11 days
Humidity
58%
Windspeed
3 m/s (6 knots)
Sunshine
180 hours
Percentage Sunshine
59%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sydney typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 14°C (57°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Sydney in May
Browse day-by-day weather records for Sydney spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sydney historical weather extremes in May
According to our 45 years of weather records for Sydney, the following extremes were recorded between 1981 and 2026.
- On May 1, 1994, temperatures climbed to 29°C (84°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 12°C (54°F), recorded on May 22, 1984.
- Sydney registered its coldest May night on May 30, 1986, with temperatures dropping to 1°C (34°F).
Best Places in Australia in May
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in May →
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tolerable
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What to Wear in Sydney in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 19°C (66°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Sydney in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Sydney's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Sydney climate overview or explore weather in Australia.
