Yanai Climate by Month
Yanai, Yamaguchi, Japan
Hot summers and cool winters, with rain spread through the year.
The climate in Yanai is one of hot summers and cool winters, with rain spread through the year. Afternoon highs range from 49°F (9°C) in January to 87°F (31°C) in August, and January nights average 34°F (1°C). About 66 in (1680 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 34°F(1°C)
- Average low, January
- Rain per year
- 66 in(1680 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: August
Best and worst months in Yanai
Best for weatherThe most comfortable weather comes in October, with highs around 73°F (23°C) and about 5.1 in (130 mm) of rain a month.
Least pleasantJanuary and July are the least pleasant; January is the coldest, with highs of only 49°F (9°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 October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Yanai weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 49°F(9°C) | 34°F(1°C) | 2.1 in(53 mm) | 68% | 2.4 |
| FebFebruary | 50°F(10°C) | 35°F(2°C) | 2.8 in(71 mm) | 64% | 3.0 |
| MarMarch | 56°F(14°C) | 40°F(5°C) | 4.8 in(121 mm) | 69% | 3.9 |
| AprApril | 65°F(19°C) | 49°F(10°C) | 6.5 in(164 mm) | 69% | 4.7 |
| MayMay | 73°F(23°C) | 58°F(14°C) | 7.0 in(179 mm) | 70% | 5.1 |
| JunJune | 78°F(26°C) | 66°F(19°C) | 9.9 in(252 mm) | 78% | 4.6 |
| JulJuly | 85°F(30°C) | 74°F(23°C) | 10 in(265 mm) | 76% | 5.0 |
| AugAugust | 87°F(31°C) | 75°F(24°C) | 5.1 in(129 mm) | 74% | 5.2 |
| SepSeptember | 81°F(27°C) | 68°F(20°C) | 7.0 in(179 mm) | 75% | 4.1 |
| OctOctoberBest | 73°F(23°C) | 57°F(14°C) | 5.1 in(130 mm) | 71% | 3.4 |
| NovNovember | 63°F(17°C) | 47°F(8°C) | 3.0 in(76 mm) | 68% | 2.6 |
| DecDecember | 53°F(12°C) | 38°F(3°C) | 2.4 in(61 mm) | 68% | 2.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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