Climate guide for Nagano, Japan

Nagano in January

Weather, crowds & best time to visit

How to read the score (0–10)
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January · Japan

Best time to visit Nagano in January Weather, crowds & prices

Weather in Nagano in January

Average temperature 0°C, 82 mm of rain, about 24 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

January score

6.1/10

Ranked #12 of 12 months

Full year for Nagano
Avg temp
0°C
Rainfall
82 mm
Humidity
73%
Days with 6h+ sun
24
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

January in Nagano scores 6.1/10 for nature and wildlife travel - ranked #12 of 12. Expect around 0°C, 82 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.

Nagano's Olympic legacy, mountain temples and ski fields fill the Japanese Alps' gateway.

January in Nagano: mixed conditions, plan around the weather

At 0°C (31°F) this is proper winter weather in January: layer up and split the day between outdoor highlights and indoor stops.

82 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with about 24 days with 6+ hours of sunshine and 10 hours of daylight.

That is 6.1/10 on the same scale — 12th of 12 months, versus 8.7/10 for the best month here.

Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.

Expect low-season pricing, and crowds are light for this destination.

If your dates are flexible, April is materially better in Nagano — 2.6 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Nagano in January?
In January, Nagano averages 0°C, 82 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 6.1/10.
Is January a good time to visit Nagano?
January earns a 6.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Nagano in January?
Expect about 82 mm of rain in January. Average humidity is 73% and there are about 24 days with 6+ hours of sunshine.

Curated in Nagano

Tickets & experiences

Things to do in Nagano

Nagano, Japan. Live activities and tours from GetYourGuide, matched to this destination.