Iyo Climate by Month
Iyo, Ehime, Japan
Hot summers and cool winters, with rain spread through the year.
Hot summers and cool winters, with rain spread through the year: that's Iyo's climate in short. Expect highs of 90°F (32°C) in August and 50°F (10°C) in January, with the coldest nights (January) near 35°F (2°C). It gets 62 in (1577 mm) of rain a year, spread across the months.
- Warmest month
- 90°F(32°C)
- Average high, August
- Coldest nights
- 35°F(2°C)
- Average low, January
- Rain per year
- 62 in(1577 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: August
Best and worst months in Iyo
Best for weatherMay and October are the best time for weather in Iyo: highs near 75°F (24°C) and about 6.1 in (155 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 50°F (10°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)
Iyo weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 50°F(10°C) | 35°F(2°C) | 2.0 in(52 mm) | 65% | 2.5 |
| FebFebruary | 52°F(11°C) | 36°F(2°C) | 2.6 in(66 mm) | 61% | 3.1 |
| MarMarch | 59°F(15°C) | 42°F(6°C) | 4.3 in(108 mm) | 64% | 4.0 |
| AprApril | 67°F(20°C) | 50°F(10°C) | 5.4 in(138 mm) | 65% | 4.8 |
| MayMayBest | 76°F(24°C) | 59°F(15°C) | 6.1 in(154 mm) | 66% | 5.2 |
| JunJune | 80°F(27°C) | 67°F(20°C) | 9.5 in(241 mm) | 74% | 4.6 |
| JulJuly | 88°F(31°C) | 75°F(24°C) | 7.6 in(193 mm) | 74% | 5.1 |
| AugAugust | 90°F(32°C) | 76°F(25°C) | 5.3 in(134 mm) | 73% | 5.4 |
| SepSeptember | 84°F(29°C) | 69°F(21°C) | 7.4 in(188 mm) | 74% | 4.2 |
| OctOctoberBest | 75°F(24°C) | 59°F(15°C) | 6.1 in(156 mm) | 72% | 3.4 |
| NovNovember | 64°F(18°C) | 48°F(9°C) | 3.1 in(79 mm) | 72% | 2.6 |
| DecDecember | 54°F(12°C) | 38°F(4°C) | 2.7 in(68 mm) | 66% | 2.3 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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