Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather NZWhanganui
Forecast confidence: High · models disagree by 1°C

Whanganui (Wanganui) weather

Loading live data…

Light drizzle,rain likely tomorrow

European, the American and the German model agree on a high near 15° in Whanganui today. Tomorrow looks light drizzle around 14°, with a 100% chance of rain.

15°
14°
15°
15°
11°
14°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±2°Tuesdaysplit ±3°Wednesdaymodels agreeThursdaymodels agree
EuropeanECMWF
15°
Light drizzle
Today 15°·Low ·Rain 76%
AmericanNOAA GFS
16°
Light drizzle
Today 16°·Low ·Rain 55%
GermanDWD ICON
15°
Fog
Today 15°·Low ·Rain 28%
CheckWeather.io on iPhoneFree. No ads, no account.

Whanganui weather in numbers

from 30 years of measured normals

Whanganui swings 16°C across the year, from 22°C highs in January to 6°C lows in August, and January is usually the wettest month in a year that brings about 1302 mm of precipitation.

Warmest month
January
22°C average high
Coldest month
August
6°C average low
Wettest month
January
1302 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
February, March, April and May
Residents
49,000
share this forecast

The weather map: all three models at once

European, American, German side by side around Whanganui and nearby towns.Live rain radar →
Loading the three model maps…

Whanganui hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

Loading the three models…

Whanganui 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
15°
models agree
Tomorrow
Light drizzle
14°
models agree
Mon
Cloudy
15°
±2°
Tue
Drizzle
15°
±3°
Wed
Light drizzle
11°
models agree
Thu
Clear
14°
models agree
Fri
Light drizzle
14°
±5°
Sat
Light drizzle
16°
models agree
Sun
Light rain
15°
±3°
Mon
Light drizzle
13°
±5°
Tue
Light drizzle
14°
models agree
Wed
Light drizzle
17° 10°
models agree
Thu
Light drizzle
18° 11°
±3°
Fri
Cloudy
15°
models agree

Whanganui, New Zealand. Often shortened to Wanganui. 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 year

Here 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.

Jan
22°
15°
Warm
Wettest
Feb
21°
14°
Mild
Mar
19°
12°
Mild
Apr
18°
11°
Mild
May
16°
Mild
Jun
14°
Cool
Jul
13°
Cool
Aug
13°
Cool
Sep
15°
Mild
Oct
16°
10°
Mild
Nov
17°
11°
Mild
Dec
20°
14°
Mild

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
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
91
/100rank #1
93±0.4°C90±4.9 km/t8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
G
German
79
/100rank #2
83±0.9°C77±11.5 km/t7687% hitDeutscher Wetterdienst (DWD)Offenbach am Main, Germany
American logo
American
73
/100rank #3
79±1.2°C65±17.3 km/t7184% hitNOAA / NCEP (United States)College Park, Maryland, USA

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 Whanganui, scoring 91/100 on our CheckWeather Score, ahead of the German at 79. See the full NZ accuracy scoreboard for exactly how every model is tested.

What do you think of the forecasts?

your vote counts

The 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.

EuropeanECMWF
Loading ratings…
AmericanNOAA GFS
Loading ratings…
GermanDWD ICON
Loading ratings…

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 separately
DayTemperatureRain
Today±1°15° to 16°±48%28% to 76% chance
Tomorrowmodels agree14° to 14°±35%65% to 100% chance
Mon±2°14° to 16°±25%0% to 25% chance
Tue±3°14° to 17°±52%34% to 86% chance
Wedmodels agree11° to 11°±45%25% to 70% chance

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.

Sunrise and sunset in Whanganui

today, local time
Sunrise
06:14
Sunset
18:12
Daylight
11h 58m

Common questions

What's the weather in Whanganui today?
On this page we show what European, American, German each forecast for Whanganui today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Whanganui today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from European, American, German for Whanganui and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Whanganui?
Over the last 30 days, the European model has been the most accurate for Whanganui (CheckWeather Score 91/100), ahead of the German at 79. We grade every model against the recorded weather. See the NZ accuracy scoreboard for the full method.
What is the warmest month in Whanganui?
January is typically the warmest month in Whanganui, with average highs around 22°C.
How cold does Whanganui get?
The coldest month in Whanganui is August, when overnight lows average about 6°C.
How much rain does Whanganui get?
Whanganui sees roughly 1302 mm of precipitation a year, with January usually the wettest month.
When is the 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.
Does it snow in Whanganui?
Rarely - Whanganui very seldom sees overnight lows drop below freezing, so lasting snow is unusual.

Nearby

More NZ weather