New Plymouth
September
Weather in New Plymouth for September 2025
Your guide to New Plymouth weather in September - trends and predictions
In general, the average temperature in New Plymouth at the beginning of September is 14 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 13.4 °C by the end of September.
The climate of New Plymouth in September is notably wet, with an average of 12 rainy days, and a total of 345.6 mm of precipitation.
Temperatures
Rain 🌧️
18
Dry days
12
Rainy days
0
Snow days
14°/8°
Temperatures
26 km/h
Avg max wind
81 %
Avg humidity
New Plymouth Weather September
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Temperatures trend during September in New Plymouth
See the weather trend as well as the moving average line
September weather in New Plymouth day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 14° /8° | 3.3 mm | 4 | |
| 2 Sept. | Overcast | 14° /8° | 0.1 mm | 4 | |
| 3 Sept. |  Light rain | 14° /9° | 13.2 mm | 4 | |
| 4 Sept. | Light rain | 14° /8° | 5 mm | 4 | |
| 5 Sept. |  Light rain shower | 13° /8° | 9.5 mm | 4 | |
| 6 Sept. |  Moderate or heavy rain shower | 14° /10° | 7 mm | 4 | |
| 7 Sept. |  Heavy rain | 15° /10° | 18.9 mm | 4 | |
| 8 Sept. |  Sunny | 14° /8° | 0.2 mm | 5 | |
| 9 Sept. | Sunny | 14° /9° | 1.1 mm | 4 | |
| 10 Sept. | Overcast | 14° /9° | 1.3 mm | 4 | |
| 11 Sept. | Light rain shower | 14° /8° | 10.7 mm | 4 | |
| 12 Sept. | Overcast | 13° /8° | 0.1 mm | 4 | |
| 13 Sept. |  Partly cloudy | 14° /10° | 2.4 mm | 4 | |
| 14 Sept. | Partly cloudy | 13° /9° | 13.4 mm | 4 | |
| 15 Sept. |  Cloudy | 14° /8° | 0.2 mm | 4 | |
| 16 Sept. | Overcast | 13° /7° | 9.5 mm | 4 | |
| 17 Sept. | Patchy rain possible | 12° /8° | 2.4 mm | 4 | |
| 18 Sept. | Partly cloudy | 13° /7° | 1.8 mm | 4 | |
| 19 Sept. | Cloudy | 14° /9° | 5.1 mm | 4 | |
| 20 Sept. |  Mist | 15° /11° | 9 mm | 4 | |
| 21 Sept. | Sunny | 14° /10° | 0.4 mm | 5 | |
| 22 Sept. | Light rain shower | 15° /11° | 5.9 mm | 4 | |
| 23 Sept. | Moderate or heavy rain shower | 14° /10° | 21.1 mm | 4 | |
| 24 Sept. | Patchy rain possible | 14° /8° | 1.5 mm | 4 | |
| 25 Sept. | Light drizzle | 12° /8° | 2 mm | 4 | |
| 26 Sept. | Light rain shower | 13° /8° | 12.6 mm | 4 | |
| 27 Sept. | Patchy rain possible | 14° /8° | 3.1 mm | 4 | |
| 28 Sept. | Light rain shower | 14° /7° | 2.4 mm | 4 | |
| 29 Sept. | Light rain shower | 14° /8° | 3.3 mm | 4 | |
| 30 Sept. | Light rain shower | 13° /5° | 6.4 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for New Plymouth 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 New Plymouth forecast closer to your planned date for the most up-to-date weather information.
Change Month
New Plymouth in September - FAQ
What are the expected maximum and minimum temperatures in New Plymouth during September?
During September, expect a variety of temperatures with highs around 14° and lows near 8°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Plymouth during September?
Significant rainfall exceeding 345.6 mm is expected in New Plymouth during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Plymouth during September?
The average wind speed in New Plymouth during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New Plymouth
Explore the daily rainfall trends and prepare for New Plymouths September weather 💧
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