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Weather & Climate
Niihama, Ehime, Japan
Overview
Climate data and monthly weather averages for Niihama.
Key Metrics
Annual Avg
15°C
Summer Avg
24.4°C
Winter Avg
5.2°C
Record High
35.2°C
Record Low
-4.8°C
Annual Precipitation
1698.8 mm
Avg Humidity
80%
Summer Humidity
82%
Winter Humidity
80%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.6° | 4° | -4.8° | 53.3 | 81% | 81 | 39.2 |
| Feb | 18.8° | 5.2° | -4.1° | 78.7 | 79% | 90 | 39.7 |
| Mar | 20.9° | 8° | -2.1° | 111.6 | 77% | 129 | 39.9 |
| Apr | 26.5° | 12.9° | 1.6° | 133.2 | 76% | 149 | 46.9 |
| May | 30.8° | 17.6° | 4.5° | 164.6 | 77% | 162 | 39.2 |
| Jun | 32.3° | 21.5° | 11.6° | 248.1 | 82% | 136 | 36.3 |
| Jul | 35.2° | 25.4° | 15.9° | 258.5 | 84% | 155 | 47.7 |
| Aug | 34.8° | 26.4° | 16.9° | 157.2 | 81% | 160 | 64 |
| Sep | 34.7° | 23° | 12.5° | 204.3 | 82% | 123 | 64.5 |
| Oct | 29.8° | 17.4° | 5.6° | 137 | 80% | 108 | 62.3 |
| Nov | 23.4° | 11.9° | 0.7° | 79.8 | 80% | 81 | 31.6 |
| Dec | 22.6° | 6.3° | -3.7° | 72.5 | 81% | 72 | 39.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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