Tokyo Weather in August
Japan · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Tokyo sees average temperatures ranging from a low of 24.7°C (76.5°F) to a high of 32.3°C (90.1°F), with a mean of 28.0°C (82.4°F). Compared to the annual average of 15.9°C (60.6°F), this month is 12.1°C warmer than the yearly norm. This is the hottest month of the year, reaching 32.3°C (90.1°F) on average. Precipitation averages 144.9mm, making it approximately 8.0mm wetter than the monthly average of 137.0mm. The city receives an average of 10.5 hours of sunshine per day during August, with relative humidity averaging 77.6%. Wind speeds reach an average maximum of 26.2 km/h. For travelers, this month offers a hottest month of the year 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.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 26.6°C (79.9°F) | 28.0°C (82.4°F) | 24.4°C (75.9°F) |
| Rainfall | 219.0mm | 144.9mm | 188.4mm |
| Sunshine | 8.6 hrs | 10.5 hrs | 7.7 hrs |
| Humidity | 79.3% | 77.6% | 80.8% |
| Wind | 25.1 km/h | 26.2 km/h | 23.8 km/h |
| Rainy Days | 22.2 | 21.4 | 19.8 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Tokyo in August, 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 August?
The average temperature in Tokyo during August ranges from 24.7°C (76.5°F) to 32.3°C (90.1°F), with a mean of 28.0°C (82.4°F).
How much does it rain in Tokyo in August?
Tokyo receives an average of 144.9mm of precipitation in August, spread across approximately 21.4 rainy days.
What should I pack for Tokyo in August?
Based on August weather data, pack lightweight, breathable clothing, sunscreen, and a hat. Rain gear is essential — this month averages 144.9mm of precipitation.
Is August a good time to visit Tokyo?
August is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Tokyo
Cities with Similar August 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.