Best Time to Visit Japanese Alps for Hiking – May Scores 67/100

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Outdoor activities Potential

67/100

Suboptimal

Based on optimal climate

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Seasonality

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Best Time

May, October, June

Avoid

Avoid (Extreme Weather)

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Weather

-3°C – 22°C

Avg Temp Range

Precipitation

Seasonal (check heatmap)

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Good For

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🥾 Planning a hiking trip to Japanese Alps?

The best time to visit Japanese Alps for hiking is May, October, June, when trail conditions are most favorable and the weather is more stable.

Start with the essentials:

hotel → Find top-rated stays near hiking areas in Japanese Alps explore → Browse the best hiking tours and routes in Japanese Alps

Climate Heatmap

See at a glance which months offer the best outdoor activities conditions — based on temperature, rainfall and climate scores.

Summer offers the most reliable hiking conditions in Japanese Alps, with open trails and longer daylight hours.

→ See where to stay in Japanese Alps

Outdoor activities conditions breakdown

Monthly weather & climate data for Japanese Alps

Month	Climate Score	Predictability	Avg Temp	Max Temp	Rain (mm)	Rain Days	Humidity	Season
January	30Poor Cool temperatures. Some rain conditions.	Predictability 70Weather conditions vary somewhat by season.	-3°	0°	89	26.2	84%	shoulder
February	31Poor Cool temperatures. Some rain conditions.	Predictability 70Weather conditions vary somewhat by season.	-3°	2°	69	22.6	81%	shoulder
March	30Poor Cool temperatures. Some rain conditions.	Predictability 70Weather conditions vary somewhat by season.	1°	6°	93	22.6	71%	shoulder
April	37Poor Cool temperatures. High rain conditions.	Predictability 78Weather conditions vary somewhat by season.	7°	13°	101	17.4	67%	shoulder
May	67Suboptimal Cool temperatures. High rain conditions.	Predictability 78Weather conditions vary somewhat by season.	13°	19°	114	17.3	68%	shoulder
June	57Suboptimal Mild temperatures. High rain conditions.	Predictability 70Weather conditions vary somewhat by season.	17°	22°	176	19.4	75%	wet
July	45Poor Mild temperatures. High rain conditions.	Predictability 20Weather conditions can vary significantly.	21°	26°	224	22.6	77%	wet
August	45Poor Warm temperatures. High rain conditions.	Predictability 30Weather conditions can vary significantly.	22°	27°	162	21.9	76%	wet
September	45Poor Mild temperatures. High rain conditions.	Predictability 30Weather conditions can vary significantly.	18°	22°	198	20.1	79%	wet
October	62Suboptimal Cool temperatures. High rain conditions.	Predictability 38Weather conditions can vary significantly.	12°	16°	126	17.2	75%	shoulder
November	29Poor Cool temperatures. Some rain conditions.	Predictability 70Weather conditions vary somewhat by season.	5°	10°	94	20.1	77%	shoulder
December	30Poor Cool temperatures. Some rain conditions.	Predictability 70Weather conditions vary somewhat by season.	0°	4°	91	27.5	81%	shoulder