Average temperature in September is 9.5 °C
Average daytime temperature is 11.5 °C
Average night temperature is 7.5 °C
Absolute maximum temperature: 18.7 °C
Absolute minimum temperature: 2.7 °C
Number of sunny days: 3
Number of rainy days: 27
Number of snow days:
Precipitation sum: 182 mm
* Weather data for Finnsnes Norway is based on climate observations for 2023 year
| September (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 15.3 | 14.8 | 14 | 12 | 10.1 | 11.1 | 13.2 | 17.4 | 17.4 | 18.7 | 12.1 | 10.1 | 8.2 | 7.7 | 9.7 | 9.5 | 8.7 | 10 | 6.5 | 8.4 | 7.4 | 10.2 | 9.9 | 9.8 | 10 | 12.5 | 14.1 | 12.2 | 11.7 | 12 |
| Apparent max temperature | 15 | 14.5 | 14 | 10.4 | 5.4 | 7.6 | 10.8 | 16.3 | 16.7 | 16.6 | 10.5 | 9 | 6.4 | 4.7 | 7.4 | 7 | 4.8 | 7.9 | 3.1 | 3.2 | 1.9 | 9.4 | 7.9 | 8.5 | 7.6 | 9.1 | 13.3 | 11.4 | 10.2 | 11.8 |
| Mean temperature | 12.5 | 12.8 | 12 | 10.6 | 8.7 | 9.7 | 11.9 | 15.1 | 15.3 | 12.9 | 10.6 | 9.1 | 6.9 | 6.3 | 6.1 | 7.4 | 7 | 8.4 | 5.5 | 5.6 | 5 | 7.8 | 8.5 | 8.1 | 8.3 | 11.3 | 12.2 | 10.2 | 10.2 | 10.1 |
| Apparent mean temperature | 8.5 | 8.2 | 8.7 | 4.5 | 3.5 | 4.2 | 7.1 | 10.8 | 10 | 6.1 | 6.3 | 5 | 1.7 | 1.9 | 0.6 | 2.7 | 1.7 | 3 | -1.3 | -1.2 | -1.6 | 2.5 | 5.9 | 4.8 | 5.5 | 6.2 | 7.7 | 6.2 | 7.3 | 4.4 |
| Minimum temperature | 9.9 | 9.3 | 9.5 | 8.5 | 7.6 | 7.8 | 10.8 | 13 | 12.9 | 9.8 | 9.6 | 7.8 | 5.1 | 4.4 | 3.4 | 4.8 | 4.1 | 6.6 | 4.4 | 3.9 | 2.7 | 5.3 | 7.6 | 6.5 | 7 | 8.4 | 10.9 | 8.9 | 8.8 | 6.1 |
| Apparent min temperature | 11.7 | 12.1 | 11.3 | 6.7 | 4.5 | 5.8 | 8.6 | 12.6 | 13.4 | 9.1 | 8.5 | 7.4 | 3.9 | 3.5 | 4 | 4.9 | 3.6 | 4.9 | -0.3 | 0.4 | 0.4 | 6.3 | 6.8 | 6.6 | 6.7 | 7.5 | 10.3 | 8 | 8.6 | 9.3 |
| September | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 15.3 | 15.2 | 15.1 | 14.9 | 14.8 | 14.6 | 14.5 | 14.3 | 14.2 | 14.1 | 13.9 | 13.8 | 13.7 | 13.5 | 13.4 | 13.2 | 13.1 | 13 | 12.8 | 12.7 | 12.6 | 12.4 | 12.3 | 12.1 | 12 | 11.9 | 11.7 | 11.6 | 11.5 | 11.3 |
| Sunshine duration (h) | 2.2 | 8.3 | 3.3 | 6 | 3.8 | 1.3 | 2.4 | 1.9 | 1.5 | 8.3 | 3.9 | 0 | 7.1 | 4.5 | 8.9 | 5 | 8.1 | 0 | 4.8 | 7.3 | 6.1 | 0 | 0.6 | 4.3 | 1.6 | 1.9 | 2.6 | 5.1 | 0 | 4.9 |
| Precipitation (mm) | 0.3 | 1.3 | 3.4 | 22.3 | 9.4 | 3 | 2.3 | 7.4 | 21.1 | 4.3 | 5 | 8.3 | 11.1 | 11.6 | 0 | 0.9 | 2.4 | 15 | 0 | 0 | 5.6 | 9.5 | 2.4 | 0.4 | 8.7 | 14.9 | 0.6 | 1.9 | 8.3 | 1.1 |
| Precipitation hours | 3 | 8 | 7 | 23 | 23 | 17 | 8 | 19 | 18 | 19 | 15 | 19 | 17 | 16 | 0 | 8 | 13 | 22 | 0 | 0 | 7 | 14 | 7 | 2 | 14 | 22 | 5 | 8 | 17 | 6 |
| Wind speed (m/s) | 10.9 | 9.7 | 16.3 | 33.7 | 30.6 | 25.6 | 27 | 30.4 | 29.2 | 34.7 | 20.7 | 19.5 | 21.3 | 14.8 | 8.9 | 13.5 | 20.9 | 29.8 | 31.1 | 27.1 | 24.9 | 9.7 | 11.4 | 5.8 | 13.8 | 39.5 | 29.6 | 21.8 | 20.5 | 7 |
In September 2023, the highest daytime temperature in Finnsnes was 18.7°C.
While the minimum temperature at night dropped to 2.7°C.
The average nighttime and daytime temperatures during September in Finnsnes are 7.5°C and 11.5°C respectively.
The precipitation sum in September is about 182 mm.