Average temperature in April is 11.5 °C
Average daytime temperature is 17.2 °C
Average night temperature is 6.8 °C
Absolute maximum temperature: 24.8 °C
Absolute minimum temperature: 0.1 °C
Number of sunny days: 11
Number of rainy days: 19
Number of snow days:
Precipitation sum: 119 mm
* Weather data for Nagaoka 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 | 16.7 | 15 | 16.7 | 18.6 | 19.9 | 21.4 | 17 | 12.6 | 11.3 | 18.2 | 21.8 | 12.9 | 17.5 | 21.1 | 18.1 | 13.6 | 11.7 | 15 | 18.5 | 24.8 | 16.4 | 13.1 | 14.5 | 12.9 | 21.2 | 15.4 | 16.4 | 22.7 | 24.7 | 17.7 |
| Apparent max temperature | 15.7 | 13.6 | 16.2 | 17.9 | 18 | 21.9 | 18.2 | 9 | 8.8 | 15.3 | 21.3 | 10.6 | 15.2 | 19.5 | 17.1 | 11.1 | 9.6 | 12.6 | 18.6 | 25.6 | 15.3 | 9.4 | 13.7 | 10.7 | 19.9 | 15.6 | 15.1 | 23.5 | 26.2 | 15.5 |
| Mean temperature | 8.9 | 8 | 8.2 | 11.4 | 14.3 | 17.4 | 12.5 | 6.8 | 6.6 | 11.5 | 15.5 | 8.1 | 11.4 | 14.4 | 13.9 | 10.2 | 7.9 | 10.8 | 11.8 | 18.1 | 10.4 | 8.3 | 8.5 | 7.3 | 14.8 | 10.6 | 10.5 | 15.1 | 18.5 | 13.1 |
| Apparent mean temperature | -0.6 | -1 | -2.3 | 2.5 | 6.6 | 13.1 | 7.3 | -2.7 | -3.2 | 1.7 | 8 | 1.3 | 2.6 | 7.8 | 8.4 | 4.8 | 1.9 | 8.5 | 3.8 | 13.3 | 1.7 | 1.2 | 0.6 | -2.6 | 7.2 | 5.4 | 1.9 | 5.4 | 14.5 | 6 |
| Minimum temperature | 2 | 1.7 | 0.7 | 6 | 9.4 | 14.1 | 9.4 | 3.7 | 1.2 | 5.1 | 10.4 | 4.6 | 5.9 | 10.2 | 11.2 | 7.3 | 4.5 | 9.6 | 6.3 | 13.7 | 4.8 | 3.9 | 3.1 | 0.1 | 10.8 | 7.5 | 5.1 | 7.6 | 14.6 | 8.3 |
| Apparent min temperature | 6.7 | 5.8 | 6.2 | 9 | 12.5 | 16.6 | 11.8 | 2.2 | 2.3 | 8.7 | 13.9 | 5.8 | 8.6 | 12.5 | 13.4 | 7.8 | 5.1 | 9.8 | 10.6 | 18.4 | 8.3 | 5 | 5.8 | 4.3 | 12.6 | 9.2 | 8.5 | 14.3 | 18.4 | 11.5 |
| 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 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 13 | 13 | 13 | 13.1 | 13.1 | 13.2 | 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 |
| Sunshine duration (h) | 11.7 | 11.7 | 11.7 | 9.7 | 4.5 | 0.2 | 1.3 | 6 | 9.5 | 11.8 | 10.8 | 4.4 | 11.9 | 7.2 | 0.6 | 7.6 | 6.2 | 2.2 | 9.6 | 10 | 3.9 | 12.2 | 12.3 | 11.5 | 7 | 0 | 12.6 | 12.5 | 8.6 | 4 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0.6 | 1.2 | 20.2 | 6.6 | 0.1 | 0 | 0 | 9.5 | 0 | 0.1 | 14.8 | 7.7 | 1.3 | 10.3 | 0.4 | 0.5 | 0.5 | 0 | 0 | 0 | 9.7 | 13.1 | 0.5 | 0 | 19.5 | 2.5 |
| Precipitation hours | 0 | 0 | 0 | 0 | 2 | 4 | 21 | 16 | 1 | 0 | 0 | 8 | 0 | 1 | 16 | 18 | 8 | 14 | 2 | 3 | 2 | 0 | 0 | 0 | 12 | 17 | 4 | 0 | 8 | 4 |
| Wind speed (m/s) | 15.4 | 14.1 | 13.9 | 13 | 12 | 14.1 | 12.6 | 27.2 | 26.6 | 17.7 | 13 | 17.1 | 13.8 | 14.1 | 24.6 | 24.9 | 15.6 | 7.9 | 12.1 | 16.6 | 12.9 | 21 | 14.9 | 13.1 | 23.8 | 14 | 14.4 | 9.2 | 14.8 | 19.5 |
In April 2023, the highest daytime temperature in Nagaoka was 24.8°C.
While the minimum temperature at night dropped to 0.1°C.
The average nighttime and daytime temperatures during April in Nagaoka are 6.8°C and 17.2°C respectively.
The precipitation sum in April is about 119 mm.