Sayama, Japan Climate by Month
Sayama, Saitama, Japan
Hot summers and cool winters, with rain spread through the year.
The climate in Sayama is one of 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 49°F (10°C), and nights dip to 30°F (-1°C). About 58 in (1470 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 30°F(-1°C)
- Average low, January
- Rain per year
- 58 in(1470 mm)
- No clear rainy season
- Humidity
- 65%
- Sunniest: May
Best and worst months in Sayama
Best for weatherMay is the best time for weather in Sayama: highs near 74°F (23°C) and about 5.4 in (136 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 49°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)
Sayama weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 49°F(10°C) | 30°F(-1°C) | 1.9 in(47 mm) | 48% | 2.6 |
| FebFebruary | 51°F(10°C) | 33°F(0°C) | 2.1 in(53 mm) | 56% | 3.1 |
| MarMarch | 57°F(14°C) | 38°F(4°C) | 3.2 in(81 mm) | 54% | 3.8 |
| AprApril | 66°F(19°C) | 47°F(8°C) | 3.9 in(98 mm) | 58% | 4.6 |
| MayMayBest | 74°F(23°C) | 56°F(13°C) | 5.4 in(136 mm) | 66% | 5.0 |
| JunJune | 78°F(26°C) | 64°F(18°C) | 6.8 in(172 mm) | 73% | 4.5 |
| JulJuly | 85°F(30°C) | 71°F(22°C) | 7.0 in(179 mm) | 76% | 4.6 |
| AugAugust | 87°F(31°C) | 73°F(23°C) | 6.8 in(172 mm) | 74% | 4.8 |
| SepSeptember | 80°F(27°C) | 66°F(19°C) | 7.6 in(192 mm) | 75% | 3.7 |
| OctOctober | 70°F(21°C) | 56°F(13°C) | 8.6 in(218 mm) | 71% | 2.9 |
| NovNovember | 61°F(16°C) | 44°F(7°C) | 2.5 in(64 mm) | 67% | 2.4 |
| DecDecember | 53°F(12°C) | 34°F(1°C) | 2.3 in(58 mm) | 63% | 2.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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