Average temperature in March is -1.2 °C
Average daytime temperature is 0.7 °C
Average night temperature is -3.4 °C
Absolute maximum temperature: 4 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 9
Number of rainy days: 11
Number of snow days: 11
Precipitation sum: 74 mm
* Weather data for Helsinki Finland is based on climate observations for 2023 year
| March (°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 | 3.3 | 3.5 | 2 | 0.4 | -1 | -3.4 | -2.1 | -2.1 | -2.6 | -1.6 | -4.1 | -1.1 | 1.4 | 4 | 2.1 | 0.5 | 1.6 | 3.1 | 2 | 1.8 | 1.9 | 3.1 | 3.3 | 3.8 | 3.5 | -0.1 | -0.4 | -0.1 | -1.1 | -1.5 | 0.1 |
| Apparent max temperature | -2.4 | -3.5 | -3.4 | -5.1 | -5.2 | -7.4 | -9.6 | -9.7 | -8.3 | -7.8 | -9.8 | -7.1 | -5.5 | -3.2 | -3.4 | -3.6 | -4.3 | -3.4 | -0.7 | -2.4 | -2.9 | -4.4 | -1.1 | 0.4 | -2.5 | -5.2 | -4.8 | -4 | -6.8 | -5.8 | -4.6 |
| Mean temperature | 0.5 | 1.8 | 0.5 | -0.7 | -2.2 | -4.7 | -5.7 | -3.9 | -6.8 | -2.6 | -5.1 | -3.9 | -2 | 3.1 | 0.2 | -1.5 | -2.5 | 2.2 | 0.9 | 0.5 | 0.1 | 1.2 | 2.5 | 2.8 | 2 | -0.7 | -1.7 | -1.2 | -3.3 | -3.5 | -2.1 |
| Apparent mean temperature | -7.9 | -5.4 | -6.1 | -7.5 | -9.1 | -11.7 | -14.7 | -14.7 | -17.6 | -10.2 | -14.2 | -12 | -11 | -6.6 | -7.1 | -7.8 | -10.2 | -5.9 | -4.8 | -5.5 | -6.6 | -6 | -5.1 | -3.7 | -5.4 | -8.6 | -10.5 | -10.4 | -10.9 | -12.5 | -9.9 |
| Minimum temperature | -2.2 | 0.3 | -0.8 | -2.1 | -4.6 | -6.5 | -10.3 | -7.2 | -10.5 | -4.7 | -6.1 | -5.7 | -5.3 | 1.1 | -2.5 | -3.7 | -6.5 | 1.2 | -1 | -1.6 | -2.1 | -0.5 | 1.3 | 1.3 | 0.2 | -1.9 | -2.6 | -6 | -5.8 | -7.7 | -4.3 |
| Apparent min temperature | -4.7 | -4.6 | -4.9 | -6.7 | -7 | -9.4 | -11.6 | -11.8 | -12.7 | -9.1 | -12 | -10 | -8.7 | -4.6 | -5.6 | -5.6 | -7.2 | -5.1 | -2.7 | -3.8 | -4.7 | -5.1 | -3.9 | -2.2 | -3.8 | -6.6 | -8.9 | -5.9 | -8.6 | -8 | -7 |
| March | 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) | 10.4 | 10.5 | 10.6 | 10.7 | 10.8 | 10.9 | 11 | 11.1 | 11.2 | 11.3 | 11.4 | 11.5 | 11.5 | 11.6 | 11.7 | 11.8 | 11.9 | 12 | 12.1 | 12.2 | 12.3 | 12.4 | 12.5 | 12.6 | 12.6 | 12.7 | 12.8 | 12.9 | 13 | 13.1 | 13.2 |
| Sunshine duration (h) | 6.2 | 9 | 8 | 2.3 | 2.8 | 8.2 | 9.2 | 0.1 | 9.8 | 9.6 | 0 | 9.6 | 9.3 | 0 | 9.7 | 10.5 | 8.8 | 2.2 | 1.2 | 0.3 | 10.7 | 0 | 11 | 0 | 5.8 | 0.1 | 0 | 10.6 | 11.1 | 6.8 | 6.9 |
| Precipitation (mm) | 0 | 0 | 1.8 | 2.2 | 0.2 | 0.3 | 0.8 | 2.8 | 0 | 0 | 3.7 | 0.7 | 5.5 | 9 | 0.1 | 0 | 0.1 | 3 | 2.1 | 2.8 | 0 | 8.6 | 2.2 | 8 | 6.1 | 3.5 | 10.2 | 0.2 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 7 | 7 | 2 | 3 | 3 | 13 | 0 | 0 | 15 | 5 | 7 | 17 | 1 | 0 | 1 | 13 | 5 | 11 | 0 | 20 | 4 | 10 | 9 | 13 | 21 | 2 | 0 | 0 | 0 |
| Wind speed (m/s) | 24.3 | 33.7 | 30.3 | 30.6 | 19.3 | 15.2 | 41.2 | 44.1 | 28.2 | 32.5 | 38.6 | 24 | 46.2 | 51.2 | 36.3 | 17.1 | 29.2 | 39.1 | 21.6 | 21.7 | 24 | 40.8 | 42.1 | 39.3 | 40.8 | 28.2 | 41 | 19.5 | 20.4 | 12.6 | 17.6 |
In March 2023, the highest daytime temperature in Helsinki was 4°C.
While the minimum temperature at night dropped to -10.5°C.
The average nighttime and daytime temperatures during March in Helsinki are -3.4°C and 0.7°C respectively.
The precipitation sum in March is about 74 mm.