Masterton Weather in May
What's the weather like in Masterton (Wellington) in May 2025?
The climate in Masterton during May can be summarized as cool and wet.
May is in the fall / autumn in Masterton and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 5°C (41°F) is normal.
| Daytime temperature | 14.2°C 57.5°F |
|---|---|
| Nightly temperature | 5.1°C 41.1°F |
| Average temperature | 9.6°C 49.3°F |
| Daily sunshine | 4 hrs |
| Avg rainfall | 140 mm 5.5 ins |
| Rainy days | 15 days |
| Sea temperature | 15.7°C 60.3°F |
| Humidity | 87% |
| Windspeed | 9.7kph 6 mph |
On average May is the 4th wettest month of the year in Masterton with around 140mm 5.5 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 Masterton
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 Masterton in May 2025.
Other monthly averages
Masterton weather stats
| Hottest month: | January | 22.2°C 72°F |
|---|---|---|
| Driest month: | February | 70mm 2.8ins |
| Sunniest month: | February | 7.3hrs |
| Coldest month: | July | 10.7°C 51.3°F |
| Wettest month: | July | 157mm 6.2ins |
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