Greymouth Weather in May
What's the weather like in Greymouth (West Coast) in May 2025?
The climate in Greymouth during May can be summarized as cool and very wet.
May is in the fall / autumn in Greymouth and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 5°C (42°F) is normal.
| Daytime temperature | 13.3°C 55.9°F |
|---|---|
| Nightly temperature | 5.3°C 41.5°F |
| Average temperature | 9.3°C 48.7°F |
| Daily sunshine | 3.8 hrs |
| Avg rainfall | 291 mm 11.5 ins |
| Rainy days | 19 days |
| Sea temperature | 15.2°C 59.4°F |
| Humidity | 88% |
| Windspeed | 9kph 6 mph |
On average May is the 4th wettest month of the year in Greymouth with around 291mm 11.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.8 hours of sunshine per day.
May temperatures in Greymouth
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 Greymouth in May 2025.
Other monthly averages
Greymouth weather stats
| Hottest month: | February | 19.9°C 67.8°F |
|---|---|---|
| Driest month: | February | 183mm 7.2ins |
| Sunniest month: | February | 6.5hrs |
| Coldest month: | July | 10.6°C 51.1°F |
| Wettest month: | November | 311mm 12.2ins |
© Google
Locations nearby
Top New Zealand locations
- Abel Tasman National Park
- Auckland
- Christchurch
- Dunedin
- Kaikoura
- Milford Sound
- Napier
- Nelson
- Queenstown
- Rotorua
- Taupo
- Wanaka
- Wellington