Average temperature in May is 17.8 °C
Average daytime temperature is 21.8 °C
Average night temperature is 14.1 °C
Absolute maximum temperature: 27 °C
Absolute minimum temperature: 7.3 °C
Number of sunny days: 18
Number of rainy days: 13
Number of snow days:
Precipitation sum: 225 mm
* Weather data for Onomichi Japan is based on climate observations for 2023 year
| May (°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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 19 | 18.6 | 20.8 | 22.2 | 21.8 | 22.9 | 17.8 | 20.1 | 19.2 | 22.6 | 21.3 | 21 | 17.7 | 21.1 | 22.4 | 24.5 | 27 | 22.8 | 19.4 | 22.6 | 24.3 | 24.8 | 22.3 | 20.7 | 22.3 | 23.4 | 24.9 | 24.7 | 23.3 | 20.7 | 20.8 |
| Apparent max temperature | 16.8 | 18 | 21.2 | 24.7 | 23.3 | 26.6 | 19.2 | 19.5 | 19.8 | 23.8 | 20.3 | 23.3 | 18.2 | 23 | 25.2 | 24.8 | 28.9 | 24.7 | 20.4 | 24.1 | 26.4 | 26.2 | 21.9 | 21.7 | 23.7 | 26.3 | 27.3 | 26.7 | 25.4 | 23 | 20.8 |
| Mean temperature | 13.2 | 14.3 | 16 | 17.5 | 18.4 | 19.2 | 15.6 | 14.8 | 14.6 | 16.8 | 16.4 | 17.1 | 15.5 | 17.4 | 17.6 | 19.7 | 20.5 | 19.4 | 17.3 | 19.5 | 19.9 | 19.7 | 17.1 | 17.9 | 18 | 20.3 | 20.1 | 21 | 21.4 | 19 | 17.7 |
| Apparent mean temperature | 5 | 7 | 11.7 | 13.7 | 15.6 | 18.5 | 12.3 | 7.2 | 8 | 9.9 | 9.3 | 14.7 | 11.8 | 14 | 11.9 | 13.5 | 16.2 | 17 | 13.8 | 17.2 | 16.9 | 15.7 | 12 | 13.2 | 14.4 | 18.3 | 18.7 | 21 | 22.3 | 15.9 | 14.4 |
| Minimum temperature | 7.3 | 8.9 | 12.2 | 13.5 | 15.4 | 17.1 | 12.9 | 9.4 | 9.8 | 11.5 | 11.1 | 14.3 | 13.5 | 13.8 | 12.6 | 13.9 | 15.4 | 17.6 | 14.2 | 16.1 | 15.9 | 15.9 | 12.6 | 14.8 | 14.1 | 16.9 | 17.1 | 18.8 | 19.9 | 16.8 | 14.4 |
| Apparent min temperature | 11.1 | 13 | 15.9 | 18.3 | 19.5 | 21.2 | 15.7 | 12.5 | 13.9 | 16.5 | 15 | 17.5 | 15 | 18.1 | 18.6 | 19.6 | 21.6 | 20.1 | 17.9 | 21.1 | 20.6 | 20.5 | 16.1 | 17.5 | 18.4 | 22.1 | 21.9 | 22.8 | 23.7 | 20.6 | 17.8 |
| May | 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 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 13.6 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 14 | 14 | 14 | 14 | 14 | 14.1 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.3 |
| Sunshine duration (h) | 12.1 | 12 | 10.3 | 10.5 | 6.2 | 5 | 2 | 12 | 12.3 | 12.3 | 12.2 | 9.4 | 0.4 | 12.1 | 12.5 | 12.6 | 11.3 | 3.7 | 2.7 | 12.6 | 12.6 | 8.1 | 13 | 10.4 | 10.9 | 11.9 | 11.3 | 8 | 1 | 0.6 | 6.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1.1 | 57.2 | 54.8 | 0 | 0 | 0 | 0 | 0 | 19.7 | 0.7 | 0.1 | 0 | 0 | 17.8 | 20.6 | 0 | 0 | 3.3 | 0.2 | 0 | 0 | 0 | 0 | 0.6 | 22.3 | 27 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 4 | 19 | 20 | 0 | 0 | 0 | 0 | 0 | 18 | 4 | 1 | 0 | 0 | 16 | 7 | 0 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 1 | 21 | 17 | 0 |
| Wind speed (m/s) | 24.7 | 13 | 8.7 | 9.9 | 11.2 | 8.4 | 13.7 | 23.2 | 9.7 | 11.5 | 16.2 | 11.5 | 17.3 | 11.5 | 10.7 | 18.1 | 14.8 | 22 | 17.6 | 12.2 | 17.5 | 13.4 | 20.5 | 16.2 | 8.3 | 10 | 12.7 | 18.9 | 17.6 | 12.6 | 10.4 |
In May 2023, the highest daytime temperature in Onomichi was 27°C.
While the minimum temperature at night dropped to 7.3°C.
The average nighttime and daytime temperatures during May in Onomichi are 14.1°C and 21.8°C respectively.
The precipitation sum in May is about 225 mm.