Japan
Nagano in January: weather & travel advice
This month's data profile
Rain shapes the decision
Nagano in January is climatically mixed. The average daily high is around 0 °C. With about 19 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
17/100 · #12
Warmth
#12
Dryness
#10
Sun
#11
Published best categories: none
Nagano · JanuaryPhoto: Sl-Ziga · CC BY-SA 3.0Climate facts
- Average high
- 0 °C
- Average low
- -8 °C
- Rainy days (est.)
- 19 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 89 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| December | 4 | -4 | 20 | 94 | 2.7 | 88 | 2.1 | 18 |
| January (selected) | 0 | -8 | 19 | 90 | 2.9 | 89 | 2.4 | 17 |
| February | 1 | -8 | 15 | 71 | 3.9 | 87 | 2.6 | 25 |
How do the previous and next months compare?
Baseline: January (17/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| December | +1 | +3.6 °C | +3.8 °C | +0.4 | +3.7 mm | -0.2 h | -1.7 % | -0.3 m/s |
| February | +8 | +0.9 °C | +0.2 °C | -4 | -19.4 mm | +1 h | -2.6 % | +0.2 m/s |
All twelve months in context
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Where to stay in Nagano
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Useful next decisions
Frequently asked questions
How warm is Nagano in January?
The average daily high is around 0 °C, with an average daily low of about -8 °C.
Does it rain a lot in Nagano in January?
The curated estimate is about 19 rainy days per month, not a directly measured long-term average. Total precipitation averages around 90 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Nagano?
By the climate score, May, June and September are the strongest months for Nagano. January is not among them.