Monthly climate guide
Niigata weather in December
December in Niigata is typically cool, with average daytime highs around 9°C (48°F) and night-time lows near 6°C (43°F). The month usually brings about 204 mm of rain (very wet) and is often cloudy. Daytime highs are 5°C cooler than November and 3°C warmer than January.
What stands out in December
- Days and nights are close, only about 3°C apart.
- It's one of the greyest months, with cloud cover near 89%.
- Niigata is usually about 4°C warmer than Fukushima, 130 km away, in December.
- It's wetter than a typical month in Niigata — roughly 48% more rain than average.
Avg high
9°C
48°F
Avg low
6°C
43°F
Rainfall
204 mm
very wet
Humidity
78%
relative
Sky
89%
cloud · often cloudy
Niigata weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 6°C / 43°F | 4°C / 38°F | 154 mm | 78% | 90% |
| February | 6°C / 43°F | 3°C / 38°F | 101 mm | 76% | 84% |
| March | 8°C / 47°F | 5°C / 41°F | 99 mm | 75% | 77% |
| April | 12°C / 54°F | 8°C / 47°F | 105 mm | 76% | 73% |
| May | 18°C / 64°F | 14°C / 57°F | 81 mm | 79% | 69% |
| June | 22°C / 71°F | 18°C / 65°F | 99 mm | 80% | 78% |
| July | 26°C / 79°F | 23°C / 73°F | 227 mm | 83% | 81% |
| August | 28°C / 82°F | 25°C / 77°F | 141 mm | 78% | 72% |
| September | 25°C / 77°F | 22°C / 72°F | 161 mm | 75% | 74% |
| October | 20°C / 67°F | 17°C / 62°F | 140 mm | 72% | 74% |
| November | 14°C / 58°F | 11°C / 53°F | 145 mm | 75% | 78% |
| December | 9°C / 48°F | 6°C / 43°F | 204 mm | 78% | 89% |
What to pack for December
- A proper insulated winter coat
- A hat, scarf and gloves
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit Niigata?
Compare the months in the chart above to find your ideal window.
Best time to visit Niigata →Other Japan cities in December
Cite or embed this data
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Niigata weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/niigata/december
<a href="https://weathercompare.eu/weather/japan/niigata/december">Niigata weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/niigata" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Niigata weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/niigata/december">Niigata weather in December</a> – WeatherCompare</p>
Niigata in December: quick answers
Is December a good time to visit Niigata?
December is cool in Niigata, with highs around 9°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Niigata in December?
Average highs are about 9°C (48°F) and average lows about 6°C (43°F), based on 10 years of daily data.
Does it rain a lot in Niigata in December?
Niigata typically gets around 204 mm of rain in December — very wet.
Figures are long-term averages for the area around Niigata (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.