Whanganui
September
Weather in Whanganui for September 2026
Your guide to Whanganui weather in September - trends and predictions
In general, the average temperature in Whanganui at the beginning of September is 14.1 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 13.7 °C by the end of September.
Whanganui in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 369.9 mm.
Temperatures
Rain 🌧️
12
Dry days
18
Rainy days
0
Snow days
16°/5°
Temperatures
26 km/h
Avg max wind
79 %
Avg humidity
Whanganui Weather September
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Temperatures trend during September in Whanganui
See the weather trend as well as the moving average line
September weather in Whanganui day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 14° /6° | 3.9 mm | 4 | |
| 2 Sept. |  Partly cloudy | 14° /7° | 1.8 mm | 5 | |
| 3 Sept. | Partly cloudy | 14° /6° | 5 mm | 5 | |
| 4 Sept. |  Light rain shower | 14° /5° | 1.4 mm | 4 | |
| 5 Sept. | Light rain shower | 15° /7° | 2.3 mm | 5 | |
| 6 Sept. | Light rain shower | 14° /8° | 5.8 mm | 4 | |
| 7 Sept. |  Moderate rain | 14° /8° | 7.5 mm | 4 | |
| 8 Sept. | Sunny | 14° /5° | 0.1 mm | 5 | |
| 9 Sept. | Patchy rain possible | 14° /5° | 0.1 mm | 4 | |
| 10 Sept. |  Cloudy | 15° /8° | 3.9 mm | 4 | |
| 11 Sept. | Patchy rain possible | 14° /6° | 2.4 mm | 4 | |
| 12 Sept. |  Overcast | 11° /6° | 2 mm | 3 | |
| 13 Sept. | Partly cloudy | 13° /7° | 2.2 mm | 4 | |
| 14 Sept. | Overcast | 13° /8° | 10.5 mm | 4 | |
| 15 Sept. | Light rain shower | 13° /6° | 2.7 mm | 4 | |
| 16 Sept. | Cloudy | 14° /7° | 1 mm | 4 | |
| 17 Sept. | Sunny | 15° /9° | 7 mm | 4 | |
| 18 Sept. | Sunny | 14° /8° | 3.7 mm | 4 | |
| 19 Sept. | Light rain shower | 14° /7° | 3.2 mm | 4 | |
| 20 Sept. | Patchy rain possible | 15° /7° | 2.3 mm | 4 | |
| 21 Sept. | Sunny | 16° /8° | 0.2 mm | 5 | |
| 22 Sept. | Patchy rain possible | 17° /9° | 0.9 mm | 5 | |
| 23 Sept. | Light rain shower | 15° /10° | 14.4 mm | 4 | |
| 24 Sept. | Patchy rain possible | 14° /9° | 7.8 mm | 4 | |
| 25 Sept. | Light rain shower | 13° /8° | 2.3 mm | 4 | |
| 26 Sept. | Light rain shower | 14° /6° | 12.4 mm | 4 | |
| 27 Sept. | Light rain shower | 13° /6° | 7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 14° /7° | 1.1 mm | 4 | |
| 29 Sept. | Light rain shower | 14° /8° | 4.4 mm | 4 | |
| 30 Sept. |  Moderate or heavy rain shower | 14° /5° | 4.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Whanganui in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Whanganui forecast closer to your planned date for the most up-to-date weather information.
Change Month
Whanganui in September - FAQ
What are the expected maximum and minimum temperatures in Whanganui during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Whanganui during September?
Significant rainfall exceeding 369.9 mm is expected in Whanganui during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Whanganui during September?
The average wind speed in Whanganui during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Whanganui
Explore the daily rainfall trends and prepare for Whanganuis September weather 💧
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