Porirua Weather in May
What's the weather like in Porirua (Wellington) in May 2025?
The climate in Porirua during May can be summarized as mild and wet.
May is in the fall / autumn in Porirua and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 7°C (44°F) is normal.
| Daytime temperature | 13.8°C 56.8°F |
|---|---|
| Nightly temperature | 6.8°C 44.2°F |
| Average temperature | 10.3°C 50.5°F |
| Daily sunshine | 4 hrs |
| Avg rainfall | 143 mm 5.6 ins |
| Rainy days | 15 days |
| Sea temperature | 14.9°C 58.8°F |
| Humidity | 85% |
| Windspeed | 14.4kph 9 mph |
On average May is the 4th wettest month of the year in Porirua with around 143mm 5.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 4 hours of sunshine per day.
May temperatures in Porirua
May rainfall
May hourly sunshine
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 Porirua in May 2025.
Other monthly averages
Porirua weather stats
| Hottest month: | January | 20.5°C 68.9°F |
|---|---|---|
| Driest month: | February | 71mm 2.8ins |
| Sunniest month: | February | 7.5hrs |
| Coldest month: | July | 10.8°C 51.4°F |
| Wettest month: | July | 160mm 6.3ins |
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