Blenheim weather
Loading live data…Light rain,rain likely tomorrow
European, the American and the German model agree on a high near 16° in Blenheim today. Tomorrow looks light rain around 11°, with a 100% chance of rain.
The weather map: all three models at once
European, American, German side by side around Blenheim and nearby towns.Live rain radar →Next 14 hours
consensus of the three models14-day forecast
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 237 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.
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.