Iwata Climate by Month
Iwata, Shizuoka, Japan
Hot summers and cool winters, with rain spread through the year.
Iwata has hot summers and cool winters, with rain spread through the year. August is the warmest month, with highs around 87°F (31°C); January is the coolest at 51°F (11°C), and nights dip to 36°F (2°C). About 80 in (2027 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 80 in(2027 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: August
Best and worst months in Iwata
Best for weatherThe most comfortable weather comes in May and October, with highs around 74°F (23°C) and about 8.7 in (222 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 51°F (11°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Iwata weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 51°F(11°C) | 36°F(2°C) | 3.0 in(76 mm) | 62% | 2.8 |
| FebFebruary | 53°F(11°C) | 37°F(3°C) | 3.8 in(96 mm) | 59% | 3.4 |
| MarMarch | 59°F(15°C) | 43°F(6°C) | 6.0 in(152 mm) | 56% | 4.2 |
| AprApril | 67°F(19°C) | 51°F(11°C) | 7.0 in(179 mm) | 65% | 5.0 |
| MayMayBest | 74°F(23°C) | 59°F(15°C) | 7.8 in(199 mm) | 72% | 5.3 |
| JunJune | 78°F(26°C) | 67°F(19°C) | 10 in(264 mm) | 77% | 4.9 |
| JulJuly | 84°F(29°C) | 74°F(23°C) | 9.3 in(236 mm) | 80% | 5.2 |
| AugAugust | 87°F(31°C) | 76°F(24°C) | 6.1 in(154 mm) | 76% | 5.4 |
| SepSeptember | 82°F(28°C) | 70°F(21°C) | 8.1 in(205 mm) | 75% | 4.1 |
| OctOctoberBest | 74°F(23°C) | 60°F(16°C) | 9.6 in(245 mm) | 70% | 3.2 |
| NovNovember | 65°F(18°C) | 50°F(10°C) | 5.3 in(135 mm) | 68% | 2.6 |
| DecDecember | 55°F(13°C) | 40°F(5°C) | 3.4 in(86 mm) | 62% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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