Whanganui weather
Loading live data…Showers,rain likely tomorrow
European, the American and the German model agree on a high near 18° in Whanganui today. Tomorrow looks showers around 15°, with a 100% chance of rain.
Latest for Whanganui: European (ECMWF): 8° Light rain · American (NOAA GFS): 7° Light rain · German (DWD ICON): 9° Light rain.
The weather map: all three models at once
European, American, German side by side around Whanganui and nearby towns.Live rain radar →Next 14 hours
consensus of the three models14-day forecast
where the models agree, and where they splitWhanganui, New Zealand. Below we compare what European, American, German forecast for Whanganui right now and flag exactly where they disagree, then break down Whanganui'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.
Whanganui weather by month
what to expect in Whanganui through the yearHere is Whanganui'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 Whanganui by season.
What Whanganui's weather is like through the year
Whanganui runs from warm summers, with January highs near 22°C, to cool winters, when August lows sit around 6°C (a swing of about 16°C across the year). January is usually the wettest month, and Whanganui sees roughly 1302 mm of precipitation annually.
Best time to visit Whanganui
The most comfortable time to visit Whanganui is usually February, March, April and May, when daytime highs sit in the pleasant 16-26°C range and the heaviest January rain is behind you.
Which forecast is most accurate in Whanganui?
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 Whanganui, scoring 91/100 on our CheckWeather Score, ahead of the German at 80. 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.