Blenheim weather
Loading live data…Cloudy,cooler tomorrow
European, the American and the German model agree on a high near 18° in Blenheim today. Tomorrow looks mostly clear around 14°, with a 32% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.Blenheim weather in numbers
from 30 years of measured normalsBlenheim swings 20°C across the year, from 24°C highs in February to 4°C lows in July, and June is usually the wettest month in a year that brings about 781 mm of precipitation.
The weather map: all three models at once
European, American, German side by side around Blenheim and nearby towns.Live rain radar →Blenheim hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Blenheim 10-day forecast, out to 14 days
where the models agree, and where they splitBlenheim, New Zealand. Below we compare what European, American, German forecast for Blenheim right now and flag exactly where they disagree, then break down Blenheim's weather month by month and which forecast model has been most accurate here.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in New Zealand before you trust any single number.
Blenheim weather by month
what to expect in Blenheim through the yearHere is Blenheim's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Blenheim by season.
What Blenheim's weather is like through the year
Blenheim runs from warm summers, with February highs near 24°C, to cold winters, when July lows sit around 4°C (a swing of about 20°C across the year). June is usually the wettest month, and Blenheim sees roughly 781 mm of precipitation annually.
Best time to visit Blenheim
The most comfortable time to visit Blenheim is usually January, February, March and April, when daytime highs sit in the pleasant 16-26°C range and the heaviest June rain is behind you.
Which forecast is most accurate in Blenheim?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 244 cities. Lower error means a higher score. See which forecast model is most accurate in New Zealand, how we measure forecast accuracy, or which model each weather app uses.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Blenheim, scoring 94/100 on our CheckWeather Score, ahead of the American at 84. See the full NZ accuracy scoreboard for exactly how every model is tested.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in New Zealand? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.