Average temperature in April is 15.3 °C
Average daytime temperature is 21.4 °C
Average night temperature is 10.5 °C
Absolute maximum temperature: 28.1 °C
Absolute minimum temperature: 3.8 °C
Number of sunny days: 16
Number of rainy days: 14
Number of snow days:
Precipitation sum: 77 mm
* Weather data for Sayama Japan 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 | 20.8 | 17.4 | 18 | 19.7 | 22.3 | 22.1 | 22.2 | 18.1 | 17.6 | 20 | 25.2 | 26.4 | 21.1 | 23.8 | 14.4 | 23.6 | 19.2 | 18 | 24.5 | 25.8 | 28.1 | 19.9 | 20.4 | 17.8 | 19.8 | 19.5 | 22.9 | 24.5 | 24.6 | 23.5 |
| Apparent max temperature | 19.7 | 15.3 | 15.7 | 17.5 | 19.6 | 19.9 | 17.2 | 15.7 | 12.8 | 18.7 | 24.4 | 23.6 | 18.6 | 21.9 | 13.7 | 23.2 | 14.4 | 16.8 | 24.7 | 26.2 | 29.2 | 13.4 | 16.3 | 13.6 | 17 | 20.2 | 22.7 | 24.5 | 24 | 25.2 |
| Mean temperature | 15.1 | 12.4 | 10.9 | 12.9 | 16.5 | 18 | 17.4 | 11.5 | 10.4 | 14.3 | 18.6 | 16.2 | 14.8 | 18 | 12.8 | 15.8 | 12.5 | 13.1 | 17.9 | 19.4 | 19.2 | 13.3 | 14.2 | 12.6 | 15.3 | 15.1 | 16.2 | 17.4 | 19.6 | 17.9 |
| Apparent mean temperature | 9.3 | 5.9 | 2.9 | 4.4 | 10.7 | 13.5 | 10.8 | 0.1 | -0.3 | 7.5 | 11.8 | 3.4 | 6.1 | 13 | 10.6 | 6.8 | 3.4 | 7.7 | 10.4 | 13.7 | 4 | 2.6 | 3.7 | 2.9 | 10.3 | 6.4 | 8.2 | 9.9 | 14.6 | 11.2 |
| Minimum temperature | 11.5 | 9.2 | 5 | 7.1 | 13.4 | 16.6 | 13.7 | 4 | 3.8 | 9.3 | 15.1 | 9.3 | 8.8 | 13.8 | 11.4 | 11 | 6.5 | 8.8 | 11.6 | 13.5 | 11.1 | 8.6 | 9.1 | 6.5 | 12.5 | 11.5 | 10 | 10.6 | 17.4 | 12.9 |
| Apparent min temperature | 13.2 | 9.2 | 8.6 | 10.6 | 13.8 | 15.4 | 14.1 | 6.7 | 6.1 | 12.5 | 15.9 | 12.3 | 11.9 | 16.5 | 11.8 | 12.6 | 8.1 | 11.8 | 17.6 | 19.7 | 15.9 | 6.7 | 8.7 | 7.9 | 12.7 | 11.4 | 14.2 | 16.7 | 17.9 | 17.5 |
| 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) | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 13 | 13 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 |
| Sunshine duration (h) | 9.6 | 8.7 | 11.7 | 10.9 | 7.2 | 5.4 | 2.6 | 8 | 11.8 | 11.8 | 10.4 | 8.9 | 11.9 | 8.1 | 0 | 11.9 | 12 | 7.5 | 11.5 | 11.9 | 9 | 7.9 | 12.1 | 5.7 | 5.1 | 4 | 12.6 | 12.4 | 8.3 | 2.1 |
| Precipitation (mm) | 2.8 | 0.5 | 0 | 0 | 0.1 | 1.1 | 7.8 | 0 | 0 | 0 | 0 | 0 | 0 | 2.9 | 27.4 | 2.8 | 0 | 2.7 | 0 | 0 | 1 | 0 | 0 | 0 | 9.9 | 7.2 | 0 | 0 | 8.6 | 2.7 |
| Precipitation hours | 2 | 3 | 0 | 0 | 1 | 4 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 15 | 6 | 0 | 6 | 0 | 0 | 2 | 0 | 0 | 0 | 9 | 11 | 0 | 0 | 6 | 8 |
| Wind speed (m/s) | 19.5 | 20.5 | 23.8 | 13.8 | 27.5 | 36.1 | 40.3 | 34.3 | 22.9 | 13.5 | 29.7 | 30 | 27.1 | 15.2 | 19.3 | 25.3 | 29.2 | 20.6 | 12.4 | 18.4 | 34.5 | 32.4 | 33.2 | 20.9 | 22.7 | 37.8 | 22.3 | 22.1 | 38.3 | 19.4 |
In April 2023, the highest daytime temperature in Sayama was 28.1°C.
While the minimum temperature at night dropped to 3.8°C.
The average nighttime and daytime temperatures during April in Sayama are 10.5°C and 21.4°C respectively.
The precipitation sum in April is about 77 mm.