Jan · Feb
Mountain winter: wind, footing, and wetness shape comfort
Avg low -2–2°C / high 5–9°C · Rain/snow days: 6–10 per month / 60–120 mm
- • It can feel colder than the numbers, especially with wind.
- • Higher sections can have snow/ice, raising walking difficulty.
- • If you get wet between onsen and transit, perceived cold rises quickly.
Suggested outfits
- · Coat/padded jacket + thermal layers
- · Scarf/gloves for wind
- · Grip-friendly (ideally waterproof) shoes
A note for travelers
In winter, wind + footing + wetness often matter more than the forecast high.
Mar · Apr
Warming up, but evenings stay cool; fog/rain can swing the feel
Avg low 3–9°C / high 10–17°C · Rainy days: 9–12 per month / 110–180 mm
- • Afternoons get lighter, but evenings cool quickly.
- • Fog can make views unpredictable, so flexibility helps.
- • Rain often lowers perceived comfort—thin outer layers help.
Suggested outfits
- · Trench/light coat
- · Long sleeves/light knits
- · Shoes that handle wet streets
A note for travelers
Spring often needs one extra layer longer than you expect because of elevation.
May · Jun
May is crisp; June is rainy season
Avg low 12–17°C / high 18–24°C · Rainy days: 10–14 per month / 160–250 mm
- • May is comfortable for walking; June turns wetter and heavier.
- • Rain shifts expectations for ropeway/views.
- • AC plus wet conditions can make a thin layer useful.
Suggested outfits
- · Breathable tops
- · Light cardigan/windbreaker
- · Umbrella + water-friendly footwear
A note for travelers
In rainy season, leaning into onsen + indoor pacing keeps the day stable.
Jul · Aug
Less scorching than cities, but humidity and rain still matter
Avg low 18–21°C / high 24–28°C · Rainy days: 10–14 per month / 170–280 mm
- • It can feel cooler than Tokyo, but humidity still drives fatigue.
- • Fog/rain can make views inconsistent.
- • Strong indoor AC can make thin layers useful even in summer.
Suggested outfits
- · Light short sleeves + breathable bottoms
- · Umbrella/water-safe pouch
- · Thin indoor layer
A note for travelers
Treat summer as “humid + rain-variable” rather than guaranteed cool weather.
Sep · Oct
Crisper air returns; September can still be rainy
Avg low 10–15°C / high 16–22°C · Rainy days: 8–12 per month / 150–260 mm
- • September can swing between late-summer warmth and cooler evenings.
- • October is one of the easiest months for walking and onsen pacing.
- • Typhoon influence can affect transport and ropeway operations—forecast checks matter.
Suggested outfits
- · Long sleeves + light outer
- · Light knit/shirt layers
- · Comfortable walking shoes
A note for travelers
Autumn often has bigger day–night swings; thin layers keep plans flexible.
Nov · Dec
Early winter returns: colder evenings and occasional snow at higher elevation
Avg low 0–6°C / high 8–14°C · Rain/snow days: 6–10 per month / 90–180 mm
- • After sunset, it cools quickly; wind can sharpen the feel.
- • Higher sections can flip rain into snow on some days.
- • Wetness from onsen transitions can change comfort quickly.
Suggested outfits
- · Coat/thicker jacket
- · Warm inner layers
- · Grip-friendly shoes
A note for travelers
From late autumn, footing and wind become more frequent comfort variables.
