ClimateForecastDecemberJanuary >>

Blenheim Climate by Month

The temperature in Blenheim varies moderately throughout the year. The temperatures shift from pleasant to mild. It receives mid-range precipitation levels. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The climate in Blenheim experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures range from a pleasant 22°C in February, the warmest time of the year, to a moderate 12°C during cooler months like July. At night, temperatures typically average around 4°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Generally, Blenheim has a moderate amount of precipitation, averaging 932 mm of rainfall annually. Year-round, Blenheim has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 93 mm, and the driest month, March, with 60 mm, is minimal.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Blenheim. While January receives considerable daily sunshine with up to 8.9 hours, June marks the darkest time of the year, where sunshine is scarce with only 4.8 hours of sunlight per day.

Monthly hours of sunshine

Data from: Nelson, New Zealand (62 KM, 38 Miles).

Daily hours of sunshine

Data from: Nelson, New Zealand (62 KM, 38 Miles).

The best time of year to visit Blenheim in New Zealand

During the months of January, February, March and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Blenheim?
    February has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in Blenheim?
    The coldest month is July with an average maximum temperature of 12°C.
  • Which is the wettest month in Blenheim?
    October tops the wettest month list with 93 mm of rainfall.
  • Which is the driest month in Blenheim?
    March is the driest month with 60 mm of precipitation.
  • Which is the sunniest month in Blenheim?
    January is the sunniest month with an average of 268 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Blenheim

    Mon   Dec 16
    25°C | 12°C
    NW 22 km/h
    18 mm
    broken clouds and thunder

    broken clouds and thunder

    Tue   Dec 17
    17°C | 10°C
    SE 36 km/h
    clear and no rain

    clear and no rain

    Wed   Dec 18
    17°C | 10°C
    SE 25 km/h
    broken clouds and no rain

    broken clouds and no rain