Bay of Plenty (Rotorua)
September
Weather in Bay of Plenty for September 2025
Your guide to Bay of Plenty weather in September - trends and predictions
In general, the average temperature in Bay of Plenty at the beginning of September is 15.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 15.1 °C by the end of September.
Bay of Plenty experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 107.6 mm.
Temperatures
Rain 🌧️
9
Dry days
21
Rainy days
0
Snow days
15°/5°
Temperatures
13 km/h
Avg max wind
79 %
Avg humidity
Bay of Plenty in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2 17° | 3  17° | 4 14° | 5 13° | 6 15° | 7 15° |
| 8 16° | 9 16° | 10 16° | 11 14° | 12 15° | 13  14° | 14  15° |
| 15 13° | 16 15° | 17 14° | 18 14° | 19 17° | 20 17° | 21  19° |
| 22 17° | 23 14° | 24 18° | 25 14° | 26 15° | 27 14° | 28 13° |
| 29  17° | 30 15° |
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Temperatures trend during September in Bay of Plenty
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Mist | 17° /4° | 6.6 mm | 5 | |
| 2 Sept. | Fog | 17° /3° | 0 mm | 5 | |
| 3 Sept. | Patchy rain possible | 17° /6° | 4.8 mm | 5 | |
| 4 Sept. | Patchy rain possible | 14° /5° | 0.9 mm | 4 | |
| 5 Sept. | Light rain shower | 13° /4° | 8.1 mm | 5 | |
| 6 Sept. | Light rain shower | 15° /5° | 1.8 mm | 4 | |
| 7 Sept. | Light rain shower | 15° /6° | 4.3 mm | 4 | |
| 8 Sept. | Mist | 16° /4° | 1 mm | 4 | |
| 9 Sept. | Fog | 16° /3° | 0 mm | 4 | |
| 10 Sept. | Fog | 16° /5° | 0.3 mm | 5 | |
| 11 Sept. | Light rain shower | 14° /5° | 7.8 mm | 5 | |
| 12 Sept. | Fog | 15° /3° | 0 mm | 4 | |
| 13 Sept. | Overcast | 14° /3° | 0.1 mm | 4 | |
| 14 Sept. | Partly cloudy | 15° /5° | 4.9 mm | 5 | |
| 15 Sept. | Overcast | 13° /5° | 3.9 mm | 4 | |
| 16 Sept. | Mist | 15° /1° | 2.7 mm | 4 | |
| 17 Sept. | Fog | 14° /3° | 2.2 mm | 4 | |
| 18 Sept. | Patchy rain possible | 14° /2° | 0.1 mm | 4 | |
| 19 Sept. | Partly cloudy | 17° /6° | 0.4 mm | 5 | |
| 20 Sept. | Mist | 17° /7° | 2 mm | 5 | |
| 21 Sept. | Sunny | 19° /5° | 0.1 mm | 6 | |
| 22 Sept. | Patchy rain possible | 17° /6° | 0.9 mm | 5 | |
| 23 Sept. | Light rain shower | 14° /8° | 10.3 mm | 4 | |
| 24 Sept. | Light rain shower | 18° /6° | 9.4 mm | 5 | |
| 25 Sept. | Light rain shower | 14° /4° | 15.7 mm | 5 | |
| 26 Sept. | Light rain shower | 15° /4° | 4.4 mm | 4 | |
| 27 Sept. | Patchy rain possible | 14° /6° | 1 mm | 4 | |
| 28 Sept. | Light rain shower | 13° /4° | 3.6 mm | 4 | |
| 29 Sept. | Light drizzle | 17° /5° | 0.4 mm | 4 | |
| 30 Sept. | Light rain shower | 15° /2° | 9.8 mm | 4 | |
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Important Notice
Our weather forecast for Bay of Plenty 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 Bay of Plenty forecast closer to your planned date for the most up-to-date weather information.
Bay of Plenty in September - FAQ
What are the expected maximum and minimum temperatures in Bay of Plenty during September?
During September, expect a variety of temperatures with highs around 15° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bay of Plenty during September?
Significant rainfall exceeding 107.6 mm is expected in Bay of Plenty during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bay of Plenty during September?
The average wind speed in Bay of Plenty during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Bay of Plenty
Explore the daily rainfall trends and prepare for Bay of Plentys September weather 💧
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