Average temperature in April is 6 °C
Average daytime temperature is 10.4 °C
Average night temperature is 1.9 °C
Absolute maximum temperature: 20 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 18
Number of rainy days: 8
Number of snow days: 4
Precipitation sum: 30 mm
* Weather data for Sillamäe Estonia is based on climate observations for 2023 year
| Aprile (°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 | 0 | 0.1 | -0.1 | -0.5 | 6.5 | 11 | 10.5 | 6.9 | 9.3 | 9.4 | 16 | 15.3 | 12.2 | 10.2 | 9 | 11.5 | 10.3 | 8.9 | 10.8 | 11.7 | 11.1 | 12.5 | 16.7 | 17.6 | 20 | 18.1 | 7 | 8.9 | 9 | 10.8 |
| Apparent max temperature | -4.6 | -5.6 | -5.5 | -4.7 | 3.1 | 8.4 | 7.4 | 3.9 | 5.5 | 6.1 | 12.8 | 14.1 | 7.2 | 5.3 | 3.7 | 7.5 | 7.7 | 4 | 6.4 | 8.1 | 9.3 | 11 | 13.2 | 14 | 15.4 | 16.2 | 4.8 | 6.4 | 6.5 | 6.3 |
| Mean temperature | -1 | -1.6 | -1.8 | -1.5 | 2.9 | 5.1 | 5.1 | 2.5 | 4.8 | 5.2 | 8.4 | 9.9 | 8.2 | 6.1 | 5.5 | 6.8 | 6.4 | 5.1 | 6.4 | 7.5 | 8.2 | 9.2 | 11.5 | 10.9 | 14 | 11.6 | 5.5 | 5.4 | 6.1 | 6.8 |
| Apparent mean temperature | -7.6 | -8.7 | -9.7 | -8 | -4.5 | -3.5 | -4.2 | -3.8 | -4.8 | -3.2 | -3.1 | 0.9 | 0 | -2.7 | -2.3 | -2.5 | -1.6 | -2.3 | -2.5 | -1.7 | 1.4 | 2 | 1.3 | 4.8 | 5.8 | 1 | -0.1 | -1.8 | -1.7 | -1.2 |
| Minimum temperature | -2.7 | -3.3 | -3.4 | -3.1 | -0.6 | 0.4 | 0.2 | -0.2 | -0.9 | 0.6 | 0.6 | 3.8 | 5.5 | 2.7 | 2.5 | 2 | 2 | 1.3 | 2.3 | 2 | 4.4 | 5.2 | 5 | 6.7 | 9.2 | 4.6 | 3.1 | 1.6 | 2.2 | 3 |
| Apparent min temperature | -5.8 | -7.1 | -7.7 | -6.2 | -0.7 | 1.5 | 1.4 | -0.9 | 1.3 | 1.9 | 5.4 | 7.6 | 3.1 | 0.8 | 0.4 | 3.1 | 3.4 | 0.7 | 2.2 | 4 | 5.7 | 6.6 | 8.4 | 8 | 10.7 | 9.4 | 2.5 | 2.3 | 1.9 | 2.6 |
| Aprile | 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) | 13.3 | 13.3 | 13.4 | 13.5 | 13.6 | 13.7 | 13.8 | 13.9 | 14 | 14 | 14.1 | 14.2 | 14.3 | 14.4 | 14.5 | 14.6 | 14.7 | 14.7 | 14.8 | 14.9 | 15 | 15.1 | 15.2 | 15.3 | 15.4 | 15.4 | 15.5 | 15.6 | 15.7 | 15.8 |
| Sunshine duration (h) | 0 | 11.9 | 1.6 | 0.5 | 3.3 | 12.2 | 12.4 | 12.5 | 12.5 | 12.4 | 12.1 | 12.4 | 10.3 | 12 | 7.4 | 9.6 | 12.2 | 5 | 13.4 | 11.7 | 13.5 | 13 | 13.8 | 9 | 13.5 | 13.9 | 0 | 14 | 13.1 | 9 |
| Precipitation (mm) | 10.8 | 0 | 0.7 | 0.9 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 0 | 0.9 | 7.5 | 0.3 | 0.4 | 6.1 |
| Precipitation hours | 14 | 0 | 3 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 4 | 16 | 3 | 3 | 13 |
| Wind speed (m/s) | 18.6 | 23.5 | 27.2 | 17.8 | 14.1 | 16.7 | 13.3 | 13 | 15.3 | 10.9 | 11.9 | 17.1 | 22 | 19.5 | 16.6 | 11.4 | 11.5 | 22.1 | 20.6 | 14.7 | 11 | 11.8 | 16.2 | 21.5 | 21.9 | 15.8 | 15.6 | 13.7 | 23.8 | 28.8 |
In April 2023, the highest daytime temperature in Sillamäe was 20°C.
While the minimum temperature at night dropped to -3.4°C.
The average nighttime and daytime temperatures during April in Sillamäe are 1.9°C and 10.4°C respectively.
The precipitation sum in April is about 30 mm.