Average temperature in January is -4.2 °C
Average daytime temperature is -1.6 °C
Average night temperature is -7.6 °C
Absolute maximum temperature: 7.3 °C
Absolute minimum temperature: -19.9 °C
Number of sunny days: 14
Number of rainy days: 9
Number of snow days: 8
Precipitation sum: 147 mm
* Weather data for Borgarnes Iceland is based on climate observations for 2023 year
| January (°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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | -5.9 | 0.3 | 0.1 | -8.8 | -9.9 | -5.3 | -1 | 2.5 | 0.4 | -0.1 | 0 | -3.6 | -5.5 | -8.1 | -10.5 | -5.4 | -4.3 | -11 | -3.9 | 6 | 5.2 | 1 | -0.8 | 4.5 | 2.1 | 7.3 | 2.6 | 5.3 | 1 | 0.1 | -1.3 |
| Apparent max temperature | -10.6 | -3.5 | -3.5 | -13.3 | -14.5 | -11 | -5.8 | -1.9 | -3.6 | -5.2 | -4.7 | -8.6 | -9.8 | -12.8 | -15.9 | -10.4 | -8.7 | -16.1 | -8.5 | 2.7 | 1.6 | -4.6 | -5.8 | 1.1 | -1.9 | 3.5 | -2.6 | 1.6 | -2.9 | -6.2 | -6.4 |
| Mean temperature | -10.9 | -1.3 | -3.9 | -11 | -10.4 | -9.8 | -2.3 | 1.1 | -0.8 | -0.7 | -2.5 | -6.1 | -7.4 | -10.1 | -11.9 | -9.7 | -10 | -13.3 | -9.8 | 3.6 | 2 | -1.5 | -6.1 | 2.5 | -1.3 | 5 | 1.6 | 2.4 | -1.4 | -4.2 | -3.2 |
| Apparent mean temperature | -24.9 | -10.3 | -13.6 | -17.7 | -16.7 | -17.5 | -10.9 | -6.1 | -6.9 | -6.7 | -10.2 | -16.2 | -15.6 | -18.7 | -18.4 | -17.8 | -22 | -22.7 | -16.7 | -5.2 | -4.2 | -11.9 | -15.3 | -6.2 | -11.6 | -3.7 | -6.8 | -3 | -10.3 | -15.7 | -11.3 |
| Minimum temperature | -19.9 | -5.3 | -9.2 | -12.3 | -11.8 | -12.8 | -4.3 | -1.3 | -1.9 | -1.5 | -5.2 | -11.5 | -11 | -13.2 | -12.7 | -12.6 | -16.5 | -17.6 | -11.7 | -0.1 | 0.4 | -4.4 | -10.7 | -1.1 | -6.9 | 0.8 | 0.8 | 0.8 | -5.7 | -10.8 | -6.8 |
| Apparent min temperature | -15.7 | -5.2 | -7.8 | -15.7 | -15.4 | -14.7 | -8 | -3.4 | -5.7 | -5.8 | -7.2 | -11 | -12 | -15.2 | -17.6 | -14.8 | -15 | -18.5 | -14.8 | -0.6 | -1.6 | -8.3 | -10.5 | -1 | -5.3 | 0.8 | -5 | -1.5 | -5.1 | -9.7 | -8.9 |
| January | 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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 4.2 | 4.2 | 4.3 | 4.3 | 4.4 | 4.5 | 4.5 | 4.6 | 4.7 | 4.8 | 4.9 | 5 | 5 | 5.1 | 5.2 | 5.3 | 5.4 | 5.5 | 5.6 | 5.7 | 5.8 | 5.9 | 6 | 6.1 | 6.2 | 6.3 | 6.4 | 6.5 | 6.7 | 6.8 | 6.9 |
| Sunshine duration (h) | 0 | 0 | 0 | 2.2 | 0 | 0.9 | 0 | 0 | 0 | 2.5 | 4.3 | 4.9 | 2.3 | 4.2 | 1.4 | 1.3 | 2 | 2.3 | 1.7 | 0 | 0 | 0.1 | 1.9 | 0.2 | 0 | 0 | 0.7 | 0 | 2.9 | 0 | 0 |
| Precipitation (mm) | 4 | 8.2 | 1.9 | 0 | 0 | 0 | 0 | 0.3 | 1.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 35.2 | 7.8 | 4.4 | 0.5 | 12.7 | 0.2 | 23.6 | 6.1 | 32.3 | 3.2 | 5.1 | 0.4 |
| Precipitation hours | 7 | 16 | 7 | 0 | 0 | 0 | 0 | 3 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 17 | 17 | 3 | 16 | 2 | 21 | 17 | 24 | 9 | 10 | 3 |
| Wind speed (m/s) | 14.3 | 13.4 | 12.3 | 13.4 | 12.6 | 17.7 | 27.3 | 21.4 | 20.6 | 20 | 16.5 | 18.6 | 10.5 | 15 | 17 | 14.3 | 15 | 13.5 | 12.9 | 25.5 | 21.1 | 34.7 | 14.2 | 16.6 | 22.5 | 27.2 | 35.2 | 18 | 14.3 | 28 | 36 |
In January 2023, the highest daytime temperature in Borgarnes was 7.3°C.
While the minimum temperature at night dropped to -19.9°C.
The average nighttime and daytime temperatures during January in Borgarnes are -7.6°C and -1.6°C respectively.
The precipitation sum in January is about 147 mm.