Light rain,rain likely tomorrow
European, the American and the German model put Masterton's high today between 14° and 17°, a 2° split. Tomorrow looks rain around 13°, with a 100% chance of rain.
Masterton, New Zealand. Below we compare what European, American, German forecast for Masterton right now and flag exactly where they disagree, then break down Masterton'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.
Here is Masterton'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 Masterton by season.
Masterton runs from warm summers, with January highs near 22°C, to cold winters, when August lows sit around 4°C (a swing of about 18°C across the year). February is usually the wettest month, and Masterton sees roughly 1200 mm of precipitation annually.
The most comfortable time to visit Masterton is usually January, March, April and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest February rain is behind you.
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 Masterton, scoring 88/100 on our CheckWeather Score, ahead of the German at 78. See the full NZ accuracy scoreboard for exactly how every model is tested.
The 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.