The climate in Wellington during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in Wellington and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 19°C (67°F), whilst at night 6°C (43°F) is normal.
Daytime temperature | 19.3°C 66.7°F |
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Nightly temperature | 6.2°C 43.1°F |
Average temperature | 12.7°C 54.9°F |
Daily sunshine | 6.7 hrs |
Avg rainfall | 53 mm 2.1 ins |
Rainy days | 9 days |
Sea temperature | 21.3°C 70.3°F |
Humidity | 66% |
Windspeed | 6.8kph 4 mph |
On average May is the 6th driest month of the year in Wellington with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Wellington in May 2025.
Hottest month: | January | 31.5°C 88.7°F |
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Driest month: | June | 40mm 1.6ins |
Sunniest month: | January | 10.2hrs |
Coldest month: | July | 14.6°C 58.3°F |
Wettest month: | January | 72mm 2.8ins |