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Weather & Climate
Iwai, Ibaraki, Japan
Overview
Available climate summaries for Iwai. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
14.1°C
Summer Avg
23.8°C
Winter Avg
3.6°C
Record High
38.3°C
Record Low
-17.1°C
Annual Precipitation
1392.5 mm
Avg Humidity
77%
Summer Humidity
83%
Winter Humidity
71%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 7.6° | 2.4° | -1.8° | 50.6 | 70% | 244 | 17.5 |
| Feb | 8.5° | 3.3° | -1° | 64.7 | 70% | 242 | 18.4 |
| Mar | 12.2° | 7.1° | 2.6° | 98.9 | 71% | 246 | 20.1 |
| Apr | 17.7° | 12.7° | 8.4° | 110 | 74% | 253 | 20.9 |
| May | 22.2° | 17.5° | 13.4° | 129.2 | 77% | 255 | 19.5 |
| Jun | 25° | 20.9° | 17.6° | 164.7 | 82% | 215 | 17.5 |
| Jul | 28.6° | 24.6° | 21.6° | 145.3 | 84% | 239 | 16.7 |
| Aug | 30° | 26° | 23° | 131.3 | 82% | 276 | 17.1 |
| Sep | 26° | 22.3° | 19.5° | 178.5 | 82% | 216 | 17.1 |
| Oct | 20.4° | 16.4° | 13.1° | 163.8 | 80% | 205 | 16 |
| Nov | 15.2° | 10.6° | 6.8° | 84.4 | 78% | 205 | 15.3 |
| Dec | 10.2° | 5° | 0.8° | 49.1 | 74% | 222 | 16 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-20.
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