Tokyo Weather in May
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Tokyo sees average temperatures ranging from a low of 14.4°C (57.9°F) to a high of 22.9°C (73.2°F), with a mean of 18.6°C (65.5°F). Compared to the annual average of 15.9°C (60.6°F), this month is 2.7°C warmer than the yearly norm. Precipitation averages 168.4mm, making it approximately 32.0mm wetter than the monthly average of 137.0mm. The city receives an average of 8.2 hours of sunshine per day during May, with relative humidity averaging 75.0%. Wind speeds reach an average maximum of 29.4 km/h. For travelers, this month offers a temperature experience in Tokyo, with wetter-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Tokyo, avoid June-July like the plague. The humidity is suffocating — I've hiked in 90% humidity and it's not fun. October is the sweet spot: clear skies, 18°C, low rain. For cherry blossoms, aim for the last week of March to first week of April. The data confirms what locals have always known: autumn is Tokyo's best-kept secret.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 14.2°C (57.6°F) | 18.6°C (65.5°F) | 22.4°C (72.3°F) |
| Rainfall | 161.9mm | 168.4mm | 202.8mm |
| Sunshine | 8.5 hrs | 8.2 hrs | 8.2 hrs |
| Humidity | 70.6% | 75.0% | 79.5% |
| Wind | 30.4 km/h | 29.4 km/h | 25.1 km/h |
| Rainy Days | 16.2 | 17.4 | 19.8 |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Tokyo in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Tokyo in May?
The average temperature in Tokyo during May ranges from 14.4°C (57.9°F) to 22.9°C (73.2°F), with a mean of 18.6°C (65.5°F).
How much does it rain in Tokyo in May?
Tokyo receives an average of 168.4mm of precipitation in May, spread across approximately 17.4 rainy days.
What should I pack for Tokyo in May?
Based on May weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 168.4mm of precipitation.
Is May a good time to visit Tokyo?
May is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Tokyo
Cities with Similar May Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 35.68°, 139.69°. Timezone: Asia/Tokyo. Last updated: 2026-07-30.