Average temperature in April is 12 °C
Average daytime temperature is 18.1 °C
Average night temperature is 6.5 °C
Absolute maximum temperature: 25.1 °C
Absolute minimum temperature: -0.7 °C
Number of sunny days: 20
Number of rainy days: 10
Number of snow days:
Precipitation sum: 55 mm
* Weather data for Iwanuma 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 | 18.2 | 11.6 | 12.9 | 17.1 | 19.6 | 21.3 | 21.3 | 16 | 12.8 | 18.6 | 22.7 | 21.5 | 18.7 | 23.1 | 15.8 | 18.9 | 11.7 | 16.1 | 21.7 | 20.2 | 25.1 | 14.5 | 16.4 | 14.8 | 14 | 15 | 18.3 | 21.8 | 22 | 21.6 |
| Apparent max temperature | 16.6 | 8.8 | 11.5 | 16.3 | 18.8 | 20.4 | 20 | 14.7 | 6.7 | 17.3 | 22.2 | 21 | 15.1 | 20.6 | 15.5 | 18.3 | 8.5 | 14.3 | 20.7 | 20.4 | 25 | 9.6 | 11.7 | 9.6 | 11.6 | 15.7 | 15.7 | 21.8 | 23 | 22.6 |
| Mean temperature | 10.1 | 7.3 | 7.5 | 10.7 | 13.2 | 16.4 | 15.5 | 8.7 | 6.6 | 10.8 | 16 | 9.6 | 11.6 | 14.3 | 13 | 12.8 | 9.1 | 11.7 | 13 | 16.1 | 14.8 | 9.3 | 9.7 | 8 | 12.8 | 12 | 11.2 | 15.1 | 18 | 14.9 |
| Apparent mean temperature | 0.8 | -0.1 | -1.2 | 1.3 | 5.8 | 12.6 | 11.1 | -2.1 | -3.5 | 0.5 | 9.4 | -0.6 | 1 | 4.4 | 10.1 | 3.8 | 4.1 | 8.1 | 3.5 | 12.2 | 2.8 | -0.6 | -1 | -3.8 | 7.9 | 5.5 | 0.9 | 6.5 | 15.2 | 4.3 |
| Minimum temperature | 3.9 | 2.5 | 1.6 | 4.6 | 8 | 13.2 | 11.4 | 3.8 | -0.3 | 3.5 | 10.9 | 2.7 | 4.3 | 7 | 11.7 | 7.8 | 6.4 | 9.2 | 5.3 | 12.6 | 7.3 | 3.1 | 2.5 | -0.7 | 10.6 | 8.1 | 3.2 | 8.1 | 15.5 | 7.1 |
| Apparent min temperature | 7.7 | 4.8 | 5.4 | 8.8 | 11.8 | 15.3 | 15 | 5.4 | 2.4 | 8.7 | 14.4 | 7.4 | 8.4 | 12.2 | 11.9 | 10.2 | 5.5 | 10.2 | 11.3 | 16.2 | 11.4 | 5 | 5.5 | 3.7 | 9.8 | 10.6 | 8.8 | 14.6 | 17.5 | 13.8 |
| 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 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 13 | 13 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 |
| Sunshine duration (h) | 9.8 | 10.3 | 11.6 | 11.6 | 7.5 | 4.1 | 1 | 4.6 | 11.7 | 11.9 | 10.7 | 5.7 | 12 | 8.9 | 1.1 | 9.3 | 11.8 | 6.6 | 12.5 | 12.3 | 12.2 | 12.6 | 12.6 | 11.9 | 7.9 | 2.6 | 12.8 | 12.3 | 9 | 2.1 |
| Precipitation (mm) | 0 | 0.1 | 0 | 0 | 0 | 0 | 7.9 | 1.6 | 0 | 0 | 0 | 7.6 | 0 | 0 | 12.2 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 9.1 | 0 | 0 | 8.4 | 1.5 |
| Precipitation hours | 0 | 1 | 0 | 0 | 0 | 0 | 20 | 9 | 0 | 0 | 0 | 4 | 0 | 0 | 20 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 11 | 0 | 0 | 7 | 1 |
| Wind speed (m/s) | 12.3 | 14.8 | 13.6 | 12 | 14.1 | 25.2 | 26.1 | 23.8 | 31.6 | 12.9 | 18.8 | 21.4 | 19.5 | 17.2 | 17.8 | 22.7 | 26.8 | 20.2 | 18.9 | 12.4 | 20.5 | 26.9 | 26.3 | 24.9 | 24.1 | 14.5 | 23.7 | 16.3 | 20.2 | 9.7 |
In April 2023, the highest daytime temperature in Iwanuma was 25.1°C.
While the minimum temperature at night dropped to -0.7°C.
The average nighttime and daytime temperatures during April in Iwanuma are 6.5°C and 18.1°C respectively.
The precipitation sum in April is about 55 mm.