Climate guide for Sydney, Australia

Sydney in May

Weather, crowds & best time to visit

How to read the score (0–10)
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May · Australia

Best time to visit Sydney in May Weather, crowds & prices

Weather in Sydney in May

Average temperature 15°C, 118 mm of rain, about 26 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

May score

7.3/10

Ranked #11 of 12 months

Full year for Sydney
Avg temp
15°C
Rainfall
118 mm
Humidity
78%
Days with 6h+ sun
26
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

May in Sydney scores 7.3/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 15°C, 118 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.

Sydney reveals its true character from the water: harbor ferries, sandstone headlands, ocean pools, and long golden evening light converge in spring and early summer.

May holds up well in Sydney — 11th best month

May averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Monthly rainfall reaches 118 mm — wet for this destination — but about 26 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 7.3/10 here, 11th of 12 months, against 9.2/10 in the destination's best month.

Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.

Figure on low-season pricing, with crowds are light for this destination.

Flexible dates? September scores 1.9 points higher here — enough to change the trip.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Sydney in May?
In May, Sydney averages 15°C, 118 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 7.3/10.
Is May a good time to visit Sydney?
May earns a 7.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Sydney in May?
Expect about 118 mm of rain in May. Average humidity is 78% and there are about 26 days with 6+ hours of sunshine.

Curated in Sydney

Tickets & experiences

Things to do in Sydney

Sydney, Australia. Live activities and tours from GetYourGuide, matched to this destination.