Bangor
September
Weather in Bangor for September 2025
Your guide to Bangor weather in September - trends and predictions
In general, the average temperature in Bangor at the beginning of September is 16.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.6 °C by the end of September.
Bangor experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 106.9 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
15°/11°
Temperatures
28 km/h
Avg max wind
82 %
Avg humidity
Bangor in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  15° | 2 16° | 3  17° | 4 16° | 5  17° | 6 18° | 7 18° |
| 8 18° | 9  18° | 10 16° | 11 14° | 12 13° | 13  14° | 14 16° |
| 15  14° | 16  15° | 17 16° | 18 15° | 19  16° | 20 16° | 21 15° |
| 22 14° | 23 14° | 24 15° | 25 13° | 26  13° | 27 13° | 28 14° |
| 29 14° | 30 13° |
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Temperatures trend during September in Bangor
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. | Light rain shower | 15° /13° | 1.3 mm | 4 | |
| 2 Sept. | Patchy rain possible | 16° /11° | 4.7 mm | 4 | |
| 3 Sept. | Sunny | 17° /10° | 0.4 mm | 5 | |
| 4 Sept. | Sunny | 16° /11° | 0.8 mm | 4 | |
| 5 Sept. | Partly cloudy | 17° /12° | 0 mm | 5 | |
| 6 Sept. | Partly cloudy | 18° /13° | 0 mm | 5 | |
| 7 Sept. | Light rain shower | 18° /14° | 1.1 mm | 5 | |
| 8 Sept. | Patchy rain possible | 18° /13° | 0.8 mm | 5 | |
| 9 Sept. | Mist | 18° /13° | 0.2 mm | 5 | |
| 10 Sept. | Light rain shower | 16° /11° | 5 mm | 4 | |
| 11 Sept. | Light rain shower | 14° /10° | 3.9 mm | 4 | |
| 12 Sept. | Partly cloudy | 13° /8° | 1.5 mm | 4 | |
| 13 Sept. | Overcast | 14° /8° | 1.3 mm | 4 | |
| 14 Sept. | Overcast | 16° /11° | 0.2 mm | 4 | |
| 15 Sept. | Moderate rain | 14° /10° | 9.2 mm | 4 | |
| 16 Sept. | Cloudy | 15° /10° | 0.1 mm | 4 | |
| 17 Sept. | Light rain shower | 16° /12° | 10.2 mm | 5 | |
| 18 Sept. | Patchy rain possible | 15° /11° | 2.7 mm | 4 | |
| 19 Sept. | Light rain | 16° /10° | 4.4 mm | 5 | |
| 20 Sept. | Patchy light drizzle | 16° /10° | 2.1 mm | 5 | |
| 21 Sept. | Light rain shower | 15° /9° | 0.6 mm | 4 | |
| 22 Sept. | Light rain shower | 14° /10° | 1.6 mm | 4 | |
| 23 Sept. | Light drizzle | 14° /9° | 1.1 mm | 4 | |
| 24 Sept. | Moderate rain | 15° /11° | 7.3 mm | 4 | |
| 25 Sept. | Patchy rain possible | 13° /11° | 2 mm | 4 | |
| 26 Sept. | Moderate or heavy rain with thunder | 13° /9° | 16.4 mm | 4 | |
| 27 Sept. | Light rain shower | 13° /8° | 10 mm | 3 | |
| 28 Sept. | Light rain shower | 14° /8° | 1.8 mm | 4 | |
| 29 Sept. | Cloudy | 14° /10° | 1.2 mm | 4 | |
| 30 Sept. | Light rain shower | 13° /9° | 15.2 mm | 4 | |
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Important Notice
Our weather forecast for Bangor 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 Bangor forecast closer to your planned date for the most up-to-date weather information.
Bangor in September - FAQ
What are the expected maximum and minimum temperatures in Bangor during September?
During September, expect a variety of temperatures with highs around 15° and lows near 11°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bangor during September?
Significant rainfall exceeding 106.9 mm is expected in Bangor during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bangor during September?
The average wind speed in Bangor during September is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Bangor
Explore the daily rainfall trends and prepare for Bangors September weather 💧
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