Average temperature in April is 9.7 °C
Average daytime temperature is 13.7 °C
Average night temperature is 5.9 °C
Absolute maximum temperature: 19.1 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 10
Number of rainy days: 20
Number of snow days:
Precipitation sum: 58 mm
* Weather data for Sumy Ukraine is based on climate observations for 2023 year
| April (°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 | 11.4 | 12.8 | 9.4 | 13.9 | 15.5 | 17 | 15.2 | 16.2 | 14 | 14.6 | 16.2 | 12.2 | 10.8 | 9.3 | 7.8 | 12.4 | 15.3 | 15.7 | 14 | 13 | 9.8 | 15.5 | 17.4 | 16.9 | 16.2 | 18.4 | 19.1 | 11.5 | 13.2 | 7.1 |
| Apparent max temperature | 7.5 | 8.5 | 6.2 | 13.3 | 11.3 | 12.4 | 13.5 | 13.6 | 11.6 | 11 | 11.2 | 7.8 | 7.3 | 4.9 | 2.6 | 8.3 | 11.2 | 10.1 | 9.1 | 7.8 | 6.4 | 13.3 | 15.3 | 16 | 14.9 | 15.4 | 17.7 | 8.3 | 9.3 | 4.2 |
| Mean temperature | 7.6 | 8.8 | 7.5 | 9.6 | 10.8 | 12.2 | 10.5 | 11.2 | 10.3 | 9.4 | 11 | 11.1 | 9.1 | 7.4 | 5.4 | 7.9 | 9.3 | 10 | 10.4 | 9.5 | 7.5 | 10.2 | 11.8 | 11.2 | 10.7 | 13 | 13.2 | 9.7 | 9.5 | 6.3 |
| Apparent mean temperature | 1 | 2.3 | 2.4 | 3.3 | 2.5 | 4.9 | 4.5 | 3.3 | 4.4 | 1.1 | 0 | 5.4 | 4.1 | 0.4 | -1.5 | -0.8 | 0.5 | 1.4 | 2.5 | 2.6 | 2.4 | 2 | 2.9 | 1.5 | 2.2 | 5.2 | 6.9 | 2.7 | 1.5 | 0.3 |
| Minimum temperature | 4.6 | 5.4 | 6.1 | 5.7 | 4.8 | 9 | 7.5 | 6.3 | 7.4 | 4.8 | 4.3 | 9.4 | 7.6 | 4.7 | 3.5 | 4.1 | 4.5 | 5.2 | 6.7 | 6.5 | 5.2 | 5.2 | 5.8 | 4.1 | 4.7 | 7.3 | 8.3 | 7.3 | 6.2 | 5.2 |
| Apparent min temperature | 3.8 | 5.2 | 4.4 | 7.8 | 7.1 | 9 | 8.9 | 8.2 | 7.5 | 5.9 | 6.7 | 6.7 | 5.7 | 3.3 | 0.5 | 3.6 | 5.2 | 5.7 | 5.9 | 4.9 | 4.3 | 7.3 | 9.2 | 9.2 | 9 | 10.7 | 11.7 | 6.4 | 5 | 2.5 |
| April | 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) | 12.9 | 13 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.4 | 13.4 | 13.5 | 13.6 | 13.6 | 13.7 | 13.8 | 13.8 | 13.9 | 13.9 | 14 | 14.1 | 14.1 | 14.2 | 14.3 | 14.3 | 14.4 | 14.4 | 14.5 | 14.5 | 14.6 | 14.7 | 14.7 |
| Sunshine duration (h) | 0.8 | 2.9 | 0 | 3.9 | 11.1 | 8.2 | 3 | 11 | 7.5 | 9 | 10.4 | 0 | 0 | 0 | 2.5 | 11.8 | 12.3 | 7.6 | 9 | 0 | 0 | 12.8 | 9.1 | 11.5 | 10.7 | 12.8 | 7 | 0 | 11.4 | 0 |
| Precipitation (mm) | 0.8 | 0.1 | 2.4 | 0.1 | 0 | 0.8 | 10.2 | 0 | 0.2 | 0 | 0 | 2.3 | 9.6 | 3.4 | 0.1 | 0 | 0 | 0 | 2 | 4.1 | 6.8 | 0 | 0 | 2.8 | 0.8 | 0 | 2.4 | 3.4 | 0.2 | 5.9 |
| Precipitation hours | 6 | 1 | 12 | 1 | 0 | 7 | 16 | 0 | 2 | 0 | 0 | 8 | 20 | 12 | 1 | 0 | 0 | 0 | 3 | 14 | 19 | 0 | 0 | 5 | 1 | 0 | 6 | 15 | 1 | 14 |
| Wind speed (m/s) | 20.3 | 17.9 | 17.6 | 8.4 | 22.7 | 24.2 | 12.4 | 16.9 | 14.6 | 16.7 | 22.3 | 23.5 | 20.9 | 20.9 | 20.3 | 20 | 18.2 | 21.3 | 27.7 | 27.9 | 20.2 | 18.1 | 10.2 | 11.3 | 13.4 | 15.3 | 16.7 | 24 | 25.7 | 24.3 |
In April 2023, the highest daytime temperature in Sumy was 19.1°C.
While the minimum temperature at night dropped to 3.5°C.
The average nighttime and daytime temperatures during April in Sumy are 5.9°C and 13.7°C respectively.
The precipitation sum in April is about 58 mm.