Japan Weather in April
Typical weather, rainfall, and packing tips for Japan in April
Japan · April
Japan Weather in April
April weather in Japan averages 15°C with 10 rain days and 65% humidity. Peak season, book ahead.
Daytime high
18°C
Nighttime low
11°C
Rain days
10 days
UV index
6
Typical Weather in Japan in April
Based on 30-year historical averages.
Temperature
Conditions
What to Expect in April
- 1Daytime highs around 18°C, dropping to 11°C at night.
- 2Expect 10 rain days — rain is occasional.
- 3Humidity sits at 65% — comfortable.
- 47 hours of sunshine per day on average.
- 5UV index of 6 — moderate sun protection recommended.
What to Pack for Japan in April
Best Activities for April Weather
Outdoor sightseeing
April is ideal for walking tours and outdoor attractions in Japan.
Indoor attractions
Mix indoor and outdoor experiences for a balanced itinerary.
Food and culture
Spring seasonal dishes and local festivals make April culturally rich.
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Frequently Asked Questions
How we work this out
Temperature and rainfall figures are 30-year meteorological averages. Crowd levels come from national tourism arrival data. Price bands reflect mid-range accommodation and economy flights from major long-haul cities, sampled quarterly.
Last updated 18 July 2026 · Written by the Holicay travel team