Blenheim Weather in August
What's the weather like in Blenheim (Marlborough) in August 2025?
The climate in Blenheim during August can be summarized as cool and a little damp.
August is in the winter in Blenheim and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 2°C (36°F) is normal.
| Daytime temperature | 12.9°C 55.1°F |
|---|---|
| Nightly temperature | 2.2°C 35.9°F |
| Average temperature | 7.5°C 45.5°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 95 mm 3.7 ins |
| Rainy days | 9 days |
| Sea temperature | 12.3°C 54.2°F |
| Humidity | 80% |
| Windspeed | 15.1kph 9 mph |
On average August is the wettest month of the year in Blenheim with around 95mm 3.7 inches of rain making it a a little damp 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 5.5 hours of sunshine per day.
August temperatures in Blenheim
August rainfall
August 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 Blenheim in August 2025.
Other monthly averages
Best places to visit in August
Blenheim weather stats
| Hottest month: | January | 23.3°C 73.9°F |
|---|---|---|
| Driest month: | February | 43mm 1.7ins |
| Sunniest month: | February | 8.2hrs |
| Coldest month: | July | 11.2°C 52.2°F |
| Wettest month: | August | 95mm 3.7ins |
© Google
Locations nearby
Top New Zealand locations
- Abel Tasman National Park
- Auckland
- Christchurch
- Dunedin
- Kaikoura
- Milford Sound
- Napier
- Nelson
- Queenstown
- Rotorua
- Taupo
- Wanaka
- Wellington