Average temperature in April is 9.1 °C
Average daytime temperature is 12.3 °C
Average night temperature is 5.5 °C
Absolute maximum temperature: 15.3 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 9
Number of rainy days: 21
Number of snow days:
Precipitation sum: 92 mm
* Weather data for Swansea United Kingdom 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 | 13.5 | 12 | 11.3 | 11.8 | 10 | 11.9 | 12.3 | 13.3 | 13.9 | 12.1 | 9.9 | 9.6 | 11 | 8.8 | 13.5 | 11.7 | 14.3 | 15.3 | 15 | 14.9 | 10.6 | 11.2 | 12.5 | 10.2 | 10.7 | 12.4 | 12.7 | 14.4 | 14.6 | 13.5 |
| Apparent max temperature | 10.7 | 10.2 | 7.6 | 9.5 | 7.7 | 8.2 | 10 | 9 | 9.7 | 7.2 | 5.8 | 3.1 | 6.9 | 6.7 | 12.6 | 11.5 | 13.7 | 10.9 | 10.1 | 11.9 | 8.3 | 8.1 | 9.5 | 7.9 | 7.5 | 9.6 | 9.7 | 12.4 | 14.6 | 12.4 |
| Mean temperature | 9.7 | 7.9 | 6.8 | 7.3 | 9 | 9 | 7.3 | 9.1 | 10.1 | 10 | 8.2 | 6.9 | 7.8 | 7.3 | 8.5 | 10 | 11.6 | 10.7 | 11.2 | 9.9 | 7.8 | 7.1 | 8.5 | 7.5 | 7.4 | 9.6 | 10.6 | 12 | 11.7 | 11.1 |
| Apparent mean temperature | 2.9 | 0.9 | -1.4 | -1.5 | 4.4 | -0.3 | -1.1 | 2.1 | 1.7 | 3.4 | 0.2 | -3 | 0.9 | 1.2 | 0.5 | 6.3 | 4.9 | 4.1 | 2.7 | 0.2 | 1.8 | -1.4 | 2.6 | 1.1 | -0.2 | 2.6 | 3.8 | 8.1 | 8.2 | 7.5 |
| Minimum temperature | 6 | 4.3 | 3 | 2.4 | 7.4 | 2.7 | 1.7 | 5.4 | 6 | 7.7 | 6.5 | 5 | 5.3 | 4.1 | 3.6 | 8.3 | 7 | 6.9 | 7.5 | 5.9 | 4.5 | 1.7 | 5.2 | 3.4 | 2.8 | 6.6 | 7.8 | 9.3 | 8.9 | 9.6 |
| Apparent min temperature | 6.4 | 5.4 | 3.1 | 4.3 | 6.2 | 5.9 | 4.8 | 5.5 | 6.2 | 5.3 | 3.4 | 0.3 | 3.6 | 4.4 | 6.2 | 8.5 | 10.7 | 7.1 | 6.8 | 5.7 | 4.8 | 4.7 | 5.8 | 4.9 | 3.9 | 6.3 | 7.2 | 10.2 | 11.2 | 9.3 |
| 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) | 13 | 13 | 13.1 | 13.1 | 13.2 | 13.3 | 13.3 | 13.4 | 13.5 | 13.5 | 13.6 | 13.7 | 13.7 | 13.8 | 13.9 | 13.9 | 14 | 14.1 | 14.1 | 14.2 | 14.2 | 14.3 | 14.4 | 14.4 | 14.5 | 14.6 | 14.6 | 14.7 | 14.7 | 14.8 |
| Sunshine duration (h) | 6.1 | 6.7 | 11.9 | 11.9 | 0 | 11.6 | 11.8 | 9.6 | 7.1 | 8.9 | 0.7 | 5.4 | 12 | 1.6 | 11.5 | 0 | 6 | 12.2 | 12.8 | 12.9 | 8.1 | 6.8 | 11.6 | 8.9 | 12.5 | 4 | 0.2 | 6 | 10.2 | 3.3 |
| Precipitation (mm) | 4.7 | 0.1 | 0 | 0 | 13.3 | 1.5 | 0 | 0 | 3.5 | 11.7 | 14.1 | 12.3 | 1.5 | 7.9 | 0 | 0.5 | 0.5 | 0 | 0.2 | 0 | 1.2 | 6.3 | 0.8 | 2.7 | 0 | 0 | 4.2 | 1.3 | 0.2 | 3.5 |
| Precipitation hours | 12 | 1 | 0 | 0 | 19 | 11 | 0 | 0 | 4 | 19 | 14 | 20 | 6 | 16 | 0 | 3 | 3 | 0 | 1 | 0 | 4 | 8 | 6 | 6 | 0 | 0 | 14 | 9 | 2 | 14 |
| Wind speed (m/s) | 22.7 | 14.4 | 17.7 | 15.5 | 18.7 | 21.4 | 11.4 | 21.6 | 25.8 | 40.2 | 43.6 | 51.7 | 26.5 | 16.9 | 17.6 | 9.5 | 12.2 | 24.9 | 30.4 | 26.6 | 18.2 | 14.7 | 22.1 | 17 | 16 | 17.9 | 30.3 | 17.2 | 9.4 | 15.3 |
In April 2023, the highest daytime temperature in Swansea was 15.3°C.
While the minimum temperature at night dropped to 1.7°C.
The average nighttime and daytime temperatures during April in Swansea are 5.5°C and 12.3°C respectively.
The precipitation sum in April is about 92 mm.