Blenheim Weather in April
What's the weather like in Blenheim (Marlborough) in April 2026?
The climate in Blenheim during April can be summarized as mild and reasonably dry.
April is in the fall / autumn in Blenheim and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (65°F), whilst at night 7°C (45°F) is normal.
| Daytime temperature | 18.2°C 64.8°F |
|---|---|
| Nightly temperature | 7°C 44.6°F |
| Average temperature | 12.6°C 54.7°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 77 mm 3 ins |
| Rainy days | 8 days |
| Sea temperature | 16.1°C 60.9°F |
| Humidity | 77% |
| Windspeed | 15.1kph 9 mph |
On average April is the 5th wettest month of the year in Blenheim with around 77mm 3 inches of rain making it a reasonably dry 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 6.1 hours of sunshine per day.
April temperatures in Blenheim
April rainfall
April 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 April 2025.
Other monthly averages
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 |
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