See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
12°
Mostly Cloudy
Feels Like: 10°
Min: 11°
Max: 13°
The next few hours will be overcast, with tomorrow reaching 16°C and dropping to 10°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:20
Sunrise
18:07
Sunset
Moon
Waxing Crescent
08:57
Moonrise
23:43
Moonset
Daily Forecast
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Weather in Whanganui tomorrow, September 17, 2026
Whanganui is set for a fine, sunny day on September 17, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. The first half of the day looks overcast, as cloud amounts reach about 96% around 06:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 12°C up to 16°C. The air stays humid, with relative humidity between 67% and 84% and the peak around 18:00. Airflow remains manageable, reaching about 8.5 km/h around 15:00.
Expect the wet theme to continue later, as rain odds reach 86% near 19:00. Cloud amounts hold near 97% around 15:00. Horizontal visibility holds close to 16.1 km. Sunrise is at 06:18 and sunset at 18:08, giving 11 hours 50 minutes of sunlight today.
The practical takeaway for Whanganui on September 17, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 16°C.
Frequently asked questions about weather in Whanganui
How warm does it get in Whanganui?
The warmest month in Whanganui is February, with average high temperatures of 20°C. The average temperature during this period is around 18°C.
How cold does it get in Whanganui?
The coldest month in Whanganui is August, with average low temperatures of 9°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Whanganui?
The wettest month in Whanganui is July, with an average of 128mm of precipitation.
What is the driest time of year in Whanganui?
The driest month in Whanganui is January, with an average of 79mm of precipitation.
