Sanjō Climate by Month
Sanjō, Niigata, Japan
Hot summers and cold winters, with rain spread through the year.
The climate in Sanjō is one of hot summers and cold winters, with rain spread through the year. Afternoon highs range from 40°F (4°C) in January to 87°F (30°C) in August, and February nights average 29°F (-2°C). It gets 86 in (2189 mm) of rain a year, spread across the months.
- Warmest month
- 87°F(30°C)
- Average high, August
- Coldest nights
- 29°F(-2°C)
- Average low, February
- Rain per year
- 86 in(2189 mm)
- No clear rainy season
- Humidity
- 72%
- Sunniest: May
Best and worst months in Sanjō
Best for weatherMay and June are the best time for weather in Sanjō: highs near 74°F (23°C) and about 4.1 in (104 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 40°F (4°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 June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Sanjō weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 40°F(4°C) | 29°F(-1°C) | 11 in(290 mm) | 73% | 1.7 |
| FebFebruary | 41°F(5°C) | 29°F(-2°C) | 7.3 in(186 mm) | 73% | 2.5 |
| MarMarch | 49°F(9°C) | 34°F(1°C) | 5.5 in(140 mm) | 68% | 3.4 |
| AprApril | 60°F(16°C) | 43°F(6°C) | 4.5 in(115 mm) | 69% | 4.5 |
| MayMayBest | 71°F(22°C) | 54°F(12°C) | 3.7 in(93 mm) | 68% | 5.1 |
| JunJuneBest | 77°F(25°C) | 63°F(17°C) | 4.5 in(115 mm) | 72% | 4.8 |
| JulJuly | 83°F(29°C) | 71°F(21°C) | 7.0 in(179 mm) | 76% | 4.5 |
| AugAugust | 87°F(30°C) | 72°F(22°C) | 4.4 in(113 mm) | 73% | 4.8 |
| SepSeptember | 80°F(26°C) | 65°F(18°C) | 6.4 in(163 mm) | 74% | 3.6 |
| OctOctober | 69°F(21°C) | 54°F(12°C) | 7.7 in(195 mm) | 70% | 2.8 |
| NovNovember | 58°F(14°C) | 43°F(6°C) | 9.3 in(235 mm) | 72% | 2.0 |
| DecDecember | 46°F(8°C) | 34°F(1°C) | 14 in(365 mm) | 71% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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