Average temperature in January is -1.7 °C
Average daytime temperature is 0.1 °C
Average night temperature is -3.7 °C
Absolute maximum temperature: 4.8 °C
Absolute minimum temperature: -14.5 °C
Number of sunny days: 8
Number of rainy days: 15
Number of snow days: 8
Precipitation sum: 87 mm
* Weather data for Saku Estonia 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 | 4.8 | 0.3 | 0.5 | 0.1 | -6.3 | -7.9 | -11.3 | -3.4 | -3.3 | 2.1 | 1.7 | 2.3 | 3.8 | 3.6 | 3 | 3.5 | 1.7 | 2.1 | 1.4 | -2 | -1.2 | -3.2 | -1.3 | 1 | 2.8 | 2.4 | -0.6 | 0.7 | 1.6 | 3 | 2.2 |
| Apparent max temperature | 0.1 | -4.1 | -3.7 | -3.9 | -12.1 | -11.9 | -17.9 | -9.5 | -9.4 | -2.3 | -2.5 | -2.9 | -0.9 | -1.1 | -1.9 | -2 | -2.2 | -1.4 | -3.2 | -5.1 | -4.3 | -6.8 | -6.8 | -3.1 | -2.6 | -1.1 | -4.3 | -3.6 | -3.4 | -2.5 | -3.6 |
| Mean temperature | 0 | -1.2 | -0.6 | -2.6 | -7.4 | -10.8 | -12.4 | -7.5 | -4.6 | -1.9 | 1.2 | 1.4 | 2.6 | 3.1 | 2.3 | 2.4 | 0.5 | 1.3 | -0.2 | -3.9 | -3.4 | -4.3 | -5 | -0.3 | 1.9 | 1.1 | -3 | -1.6 | 0.2 | 1.5 | -0.2 |
| Apparent mean temperature | -6.8 | -6.6 | -6.5 | -12.6 | -14.7 | -19.7 | -19.2 | -18.4 | -12.4 | -11.2 | -6.1 | -5.6 | -4 | -2.6 | -5.1 | -4.4 | -6 | -3.7 | -7.3 | -12.3 | -10.5 | -10.1 | -10.4 | -8.5 | -3.9 | -5.1 | -9.2 | -9 | -5.7 | -5.4 | -7.3 |
| Minimum temperature | -2.4 | -2.7 | -2.9 | -7.2 | -8.7 | -14.5 | -13.2 | -12.3 | -6.2 | -5.6 | 0.6 | 0.3 | 1.1 | 2.5 | 1.5 | 1.8 | -1.1 | 0.1 | -3.5 | -8.3 | -6.8 | -6.5 | -6.5 | -2.4 | 0.9 | -0.8 | -5.3 | -4.1 | -1.3 | 0.4 | -2.9 |
| Apparent min temperature | -3.8 | -5.6 | -4.8 | -7 | -13.1 | -15.3 | -18.8 | -13.6 | -10.7 | -7 | -4.4 | -4 | -1.9 | -1.9 | -3.4 | -3.3 | -4.4 | -2.7 | -4.9 | -7.5 | -6.8 | -7.8 | -9.4 | -5.3 | -3.1 | -3.1 | -6.8 | -6.9 | -4.6 | -4.2 | -5.5 |
| 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) | 6.2 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.5 | 6.5 | 6.6 | 6.6 | 6.7 | 6.7 | 6.8 | 6.8 | 6.9 | 7 | 7 | 7.1 | 7.1 | 7.2 | 7.3 | 7.3 | 7.4 | 7.5 | 7.6 | 7.6 | 7.7 | 7.8 | 7.9 | 7.9 | 8 |
| Sunshine duration (h) | 0.6 | 0.8 | 0 | 0 | 3.6 | 1.1 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0 | 3.4 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 2.4 | 4.5 | 5.6 |
| Precipitation (mm) | 0 | 5.8 | 11.6 | 1.2 | 0.5 | 0.7 | 0 | 1.1 | 2.8 | 4.2 | 3.3 | 6.9 | 4.3 | 2.4 | 7.3 | 1.6 | 1.7 | 1 | 18.5 | 0 | 0 | 0 | 0 | 0.7 | 0.2 | 0.8 | 0 | 1.1 | 1.7 | 7.4 | 0 |
| Precipitation hours | 0 | 9 | 19 | 10 | 5 | 7 | 0 | 8 | 11 | 8 | 9 | 15 | 9 | 9 | 11 | 9 | 9 | 5 | 12 | 0 | 0 | 0 | 0 | 4 | 2 | 5 | 0 | 6 | 6 | 11 | 0 |
| Wind speed (m/s) | 22.3 | 19 | 21.9 | 18.4 | 23.5 | 12.7 | 21.6 | 24 | 26.1 | 19.5 | 31.6 | 26.6 | 24.6 | 26.9 | 34.7 | 33.3 | 24.8 | 18.4 | 24.6 | 8.4 | 11.3 | 9.2 | 20.7 | 24.8 | 24.8 | 19.9 | 10.7 | 26.2 | 26.4 | 29.1 | 25.9 |
In January 2023, the highest daytime temperature in Saku was 4.8°C.
While the minimum temperature at night dropped to -14.5°C.
The average nighttime and daytime temperatures during January in Saku are -3.7°C and 0.1°C respectively.
The precipitation sum in January is about 87 mm.