The climate in Wellington during May can be summarized as warm and a little damp.
May is in the spring in Wellington and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 13°C (55°F) is normal.
Daytime temperature | 27.6°C 81.7°F |
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Nightly temperature | 13°C 55.4°F |
Average temperature | 20.3°C 68.5°F |
Daily sunshine | 10.7 hrs |
Avg rainfall | 96 mm 3.8 ins |
Rainy days | 8 days |
Sea temperature | 17.3°C 63.2°F |
Humidity | 60% |
Windspeed | 23.4kph 15 mph |
On average May is the wettest month of the year in Wellington with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.7 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: | July | 34.7°C 94.5°F |
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Driest month: | January | 13mm 0.5ins |
Sunniest month: | July | 12.3hrs |
Coldest month: | January | 9.7°C 49.5°F |
Wettest month: | May | 96mm 3.8ins |