Japan Tokyo Weather in August — Climate Guide
August in Tokyo is Mixed
August is Mixed for Tokyo.
August is peak Tokyo summer. Highs hit 31°C, lows don't drop below 23°C, so it's hot even at night. Slightly less humid and rainy than July, so it actually feels marginally more bearable. Tokyo's summer culture is at full strength.
Obon (August 13-16) is Japan's equivalent of an ancestor remembrance holiday, and Tokyo paradoxically empties as locals travel to hometowns. This means quieter sightseeing for visitors. Caveat: some independent restaurants close, and shinkansen/highway bus reservations get tight, so plan if you're traveling outside Tokyo. Hotel rates often hold or slightly drop during Obon.
Travel score
Tokyo August Weather Stats
Avg High
31.3°C
Avg Low
23°C
Rainy Days
9.4
154.7mm total
Sunshine
6h
Daily avg
Humidity
73%
Very humid
UV Index
9
Very high
Wind
8 km/h
Gusts 17
Sea Temp
26°C
Avg water temp
Crowds
Moderate
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
10 μg/m³
PM10
17 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
35°C
Nighttime
25°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 17 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Obon emptiness allows relaxed sightseeing in central Tokyo
- Major events: Samba Carnival, Comiket, summer fireworks
- Authentic Japanese summer culture — kakigori, festivals, fireworks
Cons
- Hottest month — heat exhaustion and dehydration risks
- Overlaps with North American/EU summer break, more international tourists
August Events & Festivals
- Obon (お盆, August 13-16) — Japanese ancestor festival, domestic travel peak
- Asakusa Samba Carnival (last Saturday of August)
- Comiket (コミケ, mid-August) — world's largest doujinshi event at Tokyo Big Sight
- Tokyo Bay Grand Fireworks (mid-to-late August, Odaiba)
Tokyo in August — Full Picture
August is peak Tokyo summer. Highs hit 31°C, lows don't drop below 23°C, so it's hot even at night. Slightly less humid and rainy than July, so it actually feels marginally more bearable. Tokyo's summer culture is at full strength.
Obon (August 13-16) is Japan's equivalent of an ancestor remembrance holiday, and Tokyo paradoxically empties as locals travel to hometowns. This means quieter sightseeing for visitors. Caveat: some independent restaurants close, and shinkansen/highway bus reservations get tight, so plan if you're traveling outside Tokyo. Hotel rates often hold or slightly drop during Obon.
August highlights: Asakusa Samba Carnival turns the streets into a Brazilian-style party with elaborate costumes. Subculture fans can't miss Comiket at Tokyo Big Sight — three days, 500,000+ attendees, the world's largest doujinshi (self-published manga) event. Kakigori (shaved ice) shops also peak this month — top spots like Himitsudo (using natural ice from Nikko) or Yelo see 1-2 hour waits. Visit early morning to skip the line.
What to Wear & What to Pack
Hottest month — light, breathable T-shirts and shorts. SPF 50+ sunscreen, parasol, and hat are essential. Indoor/outdoor temperature gap is 10°C+, so always carry a cardigan. Quick-dry sweat-wicking fabrics recommended.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.1°C
9.3°C
10.6/mo
Summer (Jun·Jul·Aug)
Current29.1°C
21°C
10.9/mo
Autumn (Sep·Oct·Nov)
22.1°C
14°C
10.6/mo
Winter (Dec·Jan·Feb)
10.9°C
1.8°C
5.2/mo
Tokyo Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 9.8° | 0.6° | 5.3d·59.7mm | 6.2h | 51% | 2 | Quiet | Low season | |
| 10.9° | 1.7° | 5.6d·56.5mm | 6.1h | 52% | 3 | Quiet | Low season | |
| March (Best) | 14.2° | 4.4° | 10.1d·116mm | 5.7h | 57% | 5 | Very busy | Peak |
| April (Best) | 19.4° | 9.4° | 10.8d·133.7mm | 5.9h | 62% | 6 | Very busy | Peak |
| May (Best) | 23.6° | 14° | 10.9d·139.7mm | 6h | 65% | 7 | Busy | Shoulder |
| 26.1° | 18° | 12d·167.8mm | 4.5h | 75% | 8 | Moderate | Low season | |
| 29.9° | 22° | 11.4d·156.2mm | 5.1h | 76% | 9 | Moderate | Shoulder | |
| 31.3° | 23° | 9.4d·154.7mm | 6h | 73% | 9 | Moderate | Shoulder | |
| 27.5° | 19.7° | 12.3d·224.9mm | 4.4h | 73% | 6 | Busy | Shoulder | |
| October (Best) | 22° | 14.2° | 11.8d·234.8mm | 4.6h | 69% | 4 | Busy | Shoulder |
| 16.7° | 8.1° | 7.6d·96.3mm | 5.3h | 63% | 3 | Moderate | Shoulder | |
| 12° | 3.1° | 4.8d·57.9mm | 5.8h | 55% | 2 | Busy | Peak |
View Other Months
Tokyo August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Tokyo?
Tokyo in August is Mixed. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Tokyo in August?
Tokyo August averages a high of 31.3°C and a low of 23°C.
Does it rain much in Tokyo in August?
Tokyo August averages 154.7mm of rainfall over about 9.4 rainy days.
What should I wear in Tokyo in August?
Hottest month — light, breathable T-shirts and shorts. SPF 50+ sunscreen, parasol, and hat are essential. Indoor/outdoor temperature gap is 10°C+, so always carry a cardigan. Quick-dry sweat-wicking fabrics recommended.
What time are sunrise and sunset in Tokyo in August?
Tokyo August sunrise is 04:58 and sunset is 18:30, with 13h 32m of daylight.
What's the air quality like in Tokyo in August?
Tokyo August air quality (AQI) averages 28, rated Good. PM2.5 averages 10μg/m³.
What activities are recommended in Tokyo in August?
In August, Tokyo is great for Bon Odori festivals, Asakusa Samba Carnival, Beer gardens.
Is August peak season in Tokyo?
Tokyo August crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Tokyo
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.