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Weather & Climate
Iwakuni Shi, Yamaguchi, Japan
Overview
Climate data and monthly weather averages for Iwakuni Shi.
Key Metrics
Annual Avg
15.8°C
Summer Avg
24.6°C
Winter Avg
6.8°C
Record High
34.6°C
Record Low
-3.7°C
Annual Precipitation
1694.3 mm
Avg Humidity
79%
Summer Humidity
84%
Winter Humidity
77%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 16.5° | 5.8° | -3.7° | 64.2 | 77% | 67 | 40.9 |
| Feb | 17.7° | 6.6° | -2.7° | 78.4 | 76% | 79 | 45.1 |
| Mar | 20.1° | 9.1° | 0° | 112.5 | 76% | 121 | 44.5 |
| Apr | 24.5° | 13.4° | 3.9° | 132.6 | 77% | 145 | 45.9 |
| May | 28.9° | 17.8° | 6.7° | 154.1 | 79% | 166 | 41.1 |
| Jun | 29.6° | 21.6° | 12.8° | 251.7 | 84% | 143 | 45.4 |
| Jul | 34.4° | 25.5° | 17.6° | 291.7 | 85% | 148 | 43.5 |
| Aug | 34.6° | 26.7° | 18.3° | 155.3 | 83% | 157 | 63.4 |
| Sep | 31.8° | 23.5° | 14.1° | 184.5 | 82% | 122 | 79.7 |
| Oct | 27.8° | 18.6° | 8.6° | 114.1 | 78% | 106 | 60.5 |
| Nov | 24.3° | 13.5° | 3.8° | 78 | 77% | 75 | 34.3 |
| Dec | 21.3° | 8.1° | -2.5° | 77.2 | 77% | 60 | 43.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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