Weather in Iwamizawa in May
Iwamizawa, Japan averages a high of 16.4°C (61.5°F) and low of 7°C (44.6°F) in May, with 12 rain days and 9.6 hours of daily sunshine. Travel score: 66.9/100 (Good). The best time to visit Iwamizawa is July.
High
16°C62°F
Low
7°C45°F
🌧️
12
rain days
☀️
9.6
hrs/day sunshine
💧
75%
humidity
67— Good
May in Iwamizawa is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Iwamizawa?
How much does it rain in Iwamizawa in May?
Iwamizawa receives an average of 89mm of rainfall across 12 rainy days in May. The annual total is 1066.1mm.
What should I pack for Iwamizawa in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 16°C
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to Japan in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31