Hamnøya
September
Weather in Hamnøya for September 2025
Your guide to Hamnøya weather in September - trends and predictions
In general, the average temperature in Hamnøya at the beginning of September is 13.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.7 °C by the end of September.
Hamnøya experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 140.8 mm.
Temperatures
Rain 🌧️
6
Dry days
24
Rainy days
0
Snow days
11°/9°
Temperatures
35 km/h
Avg max wind
77 %
Avg humidity
Hamnøya in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2 16° | 3  15° | 4  14° | 5 12° | 6 13° | 7 13° |
| 8 15° | 9 15° | 10 14° | 11  15° | 12 15° | 13 11° | 14 11° |
| 15 12° | 16 12° | 17 12° | 18 13° | 19 13° | 20 8° | 21 8° |
| 22 8° | 23 7° | 24 8° | 25 8° | 26 8° | 27 6° | 28 8° |
| 29  7° | 30 9° |
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Temperatures trend during September in Hamnøya
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. | Partly cloudy | 13° /10° | 0.1 mm | 4 | |
| 2 Sept. | Partly cloudy | 16° /11° | 0 mm | 5 | |
| 3 Sept. | Patchy rain possible | 15° /13° | 0.3 mm | 4 | |
| 4 Sept. | Light rain | 14° /11° | 3.8 mm | 3 | |
| 5 Sept. | Patchy rain possible | 12° /10° | 0.5 mm | 3 | |
| 6 Sept. | Patchy rain possible | 13° /10° | 1.7 mm | 3 | |
| 7 Sept. | Light rain shower | 13° /11° | 0.8 mm | 3 | |
| 8 Sept. | Patchy rain possible | 15° /13° | 0.1 mm | 4 | |
| 9 Sept. | Light rain shower | 15° /11° | 9.3 mm | 4 | |
| 10 Sept. | Light drizzle | 14° /12° | 4.7 mm | 3 | |
| 11 Sept. | Cloudy | 15° /11° | 0.1 mm | 4 | |
| 12 Sept. | Patchy rain possible | 15° /10° | 3 mm | 4 | |
| 13 Sept. | Light rain shower | 11° /10° | 4.9 mm | 3 | |
| 14 Sept. | Light rain shower | 11° /9° | 3.7 mm | 3 | |
| 15 Sept. | Patchy rain possible | 12° /9° | 0.2 mm | 3 | |
| 16 Sept. | Light rain shower | 12° /11° | 4.3 mm | 3 | |
| 17 Sept. | Light rain shower | 12° /10° | 4.3 mm | 3 | |
| 18 Sept. | Light rain shower | 13° /11° | 3.5 mm | 3 | |
| 19 Sept. | Light rain shower | 13° /8° | 3.4 mm | 3 | |
| 20 Sept. | Light rain shower | 8° /6° | 3.8 mm | 2 | |
| 21 Sept. | Light rain shower | 8° /6° | 3.6 mm | 2 | |
| 22 Sept. | Patchy rain possible | 8° /6° | 0.6 mm | 2 | |
| 23 Sept. | Light rain shower | 7° /6° | 6.8 mm | 2 | |
| 24 Sept. | Light rain shower | 8° /6° | 23.2 mm | 2 | |
| 25 Sept. | Partly cloudy | 8° /7° | 0.3 mm | 3 | |
| 26 Sept. | Light rain shower | 8° /6° | 1.8 mm | 2 | |
| 27 Sept. | Light rain shower | 6° /5° | 1.9 mm | 2 | |
| 28 Sept. | Light rain shower | 8° /5° | 18.3 mm | 2 | |
| 29 Sept. | Light sleet showers | 7° /5° | 6.2 mm | 2 | |
| 30 Sept. | Light rain shower | 9° /5° | 25.9 mm | 2 | |
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Important Notice
Our weather forecast for Hamnøya 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 Hamnøya forecast closer to your planned date for the most up-to-date weather information.
Hamnøya in September - FAQ
What are the expected maximum and minimum temperatures in Hamnøya during September?
During September, expect a variety of temperatures with highs around 11° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hamnøya during September?
Significant rainfall exceeding 140.8 mm is expected in Hamnøya during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hamnøya during September?
The average wind speed in Hamnøya during September is 35 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hamnøya
Explore the daily rainfall trends and prepare for Hamnøyas September weather 💧
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