Average temperature in April is 8.4 °C
Average daytime temperature is 12.4 °C
Average night temperature is 4.2 °C
Absolute maximum temperature: 19.9 °C
Absolute minimum temperature: -3.2 °C
Number of sunny days: 5
Number of rainy days: 25
Number of snow days:
Precipitation sum: 230 mm
* Weather data for Lachen Switzerland 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 | 10.9 | 11.6 | 6.6 | 7.4 | 8.1 | 11.5 | 9.3 | 9.5 | 12.7 | 16.4 | 10.2 | 16 | 8.5 | 10.9 | 8.7 | 6.6 | 12.3 | 15.7 | 12.7 | 6.7 | 17.2 | 19.9 | 17.2 | 12 | 9.6 | 13.2 | 16.4 | 16.9 | 19.9 | 17.4 |
| Apparent max temperature | 8.6 | 9.8 | 4 | 3.8 | 5.7 | 9.2 | 6.6 | 7.7 | 10.5 | 15.3 | 8.7 | 16.1 | 6 | 9.5 | 6.4 | 5.2 | 10 | 14.8 | 10.8 | 5.2 | 17.7 | 19.7 | 18.2 | 9.7 | 7.5 | 12 | 16.4 | 16.4 | 20.1 | 16.1 |
| Mean temperature | 7.5 | 7.7 | 4.5 | 2.2 | 3.8 | 6.2 | 6.7 | 7.2 | 7.8 | 9 | 9.3 | 9.9 | 5.8 | 6.4 | 5.5 | 5.8 | 8.5 | 10.3 | 8.5 | 5.2 | 11.1 | 13 | 13.1 | 9.4 | 6.6 | 8.8 | 12 | 12.4 | 15 | 13.7 |
| Apparent mean temperature | 2.4 | 2.4 | -3 | -6.9 | -4.5 | -5 | 2.8 | 3.7 | -2.4 | -3.6 | 5.3 | 4.7 | 1.4 | -2.7 | -3.8 | 2.8 | 4.2 | 5.1 | 1.3 | 2.2 | 2.8 | 1.6 | 9.3 | 4.5 | 2 | -0.2 | 6.4 | 4.6 | 10.6 | 9.6 |
| Minimum temperature | 4.3 | 4.4 | 0.5 | -3.2 | -1.2 | -1.5 | 5.3 | 5.4 | 0.7 | -0.6 | 7.6 | 6.9 | 3.6 | 0.3 | -0.5 | 4.8 | 6.1 | 6.2 | 3.4 | 4.2 | 5.2 | 4.9 | 10 | 6.4 | 4.2 | 2.3 | 8 | 7.2 | 11.3 | 10.5 |
| Apparent min temperature | 5.5 | 6 | 1.2 | -1.4 | 1 | 3.2 | 4.4 | 5.5 | 5.7 | 6.9 | 7.6 | 8.4 | 3.5 | 4.2 | 3.2 | 4 | 6.6 | 8.9 | 6.7 | 3.3 | 10 | 11.6 | 12.5 | 7.8 | 4.7 | 7.1 | 11 | 11.8 | 14.9 | 13 |
| 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) | 12.8 | 12.9 | 12.9 | 13 | 13 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.7 | 13.7 | 13.8 | 13.8 | 13.9 | 13.9 | 14 | 14 | 14.1 | 14.1 | 14.2 | 14.2 | 14.3 | 14.3 | 14.4 |
| Sunshine duration (h) | 4.6 | 9.7 | 1 | 12 | 12.1 | 10.6 | 1.6 | 2.5 | 12.2 | 10.4 | 0.5 | 2.8 | 3.6 | 9.9 | 0 | 0 | 8.4 | 12.5 | 2.9 | 0 | 10 | 11 | 7.2 | 5.6 | 6.3 | 10.6 | 10.5 | 2.2 | 11.5 | 6.3 |
| Precipitation (mm) | 14.7 | 4.5 | 1.6 | 0 | 0 | 0 | 2.8 | 1.6 | 0 | 0 | 20.2 | 13.8 | 7.5 | 9.6 | 8.4 | 26.5 | 2.6 | 0.1 | 2.9 | 16.5 | 3 | 0.1 | 13.7 | 12 | 11.3 | 0.1 | 3.4 | 37.5 | 5.1 | 10.2 |
| Precipitation hours | 19 | 15 | 7 | 0 | 0 | 0 | 7 | 9 | 0 | 0 | 15 | 20 | 23 | 14 | 12 | 24 | 15 | 1 | 10 | 20 | 6 | 1 | 14 | 22 | 18 | 1 | 9 | 21 | 19 | 9 |
| Wind speed (m/s) | 10.7 | 8.9 | 12.2 | 11.2 | 6.9 | 8.6 | 10.7 | 5.8 | 7.2 | 8.6 | 7.5 | 12.6 | 8.2 | 6.9 | 7 | 6 | 9.2 | 8.5 | 8.9 | 6.3 | 8.8 | 9.8 | 8 | 11.3 | 9.1 | 6.6 | 6.8 | 9 | 8 | 11.5 |
In April 2023, the highest daytime temperature in Lachen was 19.9°C.
While the minimum temperature at night dropped to -3.2°C.
The average nighttime and daytime temperatures during April in Lachen are 4.2°C and 12.4°C respectively.
The precipitation sum in April is about 230 mm.