Weather in Tokyo 🇯🇵
Monthly weather averages & travel planning
August
Avg Temp
30°C
Rain Days
11 days
Sun Hours
10 hrs
Humidity
65%
Asia › 🇯🇵 Japan › Tokyo
Updated: March 2026
Is August a Good Time to Visit Tokyo?
6/10
Good
August is a good time to visit Tokyo (6/10). With 10 daily sunshine hours and only 11 rain days, this month delivers genuinely reliable outdoor conditions, ranking it the sunniest month of the year in Tokyo. Culture-focused travellers and those who prefer lighter crowds will find August a practical choice, with prices running lower than peak August without sacrificing all the good weather. Obon Festival takes place this month, adding cultural value for those planning around it. The main practical note: Tokyo's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
vs July:28°C avg high
Step off the plane in Tokyo in August and the air meets you at around 30°C, carrying the kind of warmth that makes you reach for sunglasses before your bag is off the belt. By the time evening arrives and temperatures settle near 24°C, the city takes on a different character entirely. With 10 hours of daylight sun on offer, August gives you the raw material for a genuinely memorable trip.
30°C
86°F
Avg High
24°C
75°F
Avg Low
11 days
115 mm total
Rain Days
10h
per day avg
Sunshine
65%
Moderate
Humidity
Temperature in Tokyo in August
The 6°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 20 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 86°F average high, 75°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Tokyo in August
Morning24°CBefore the day warms up
Afternoon30°CPeak daytime temperature
Evening27°CAfter sunset cools down
Packing for Tokyo in August means dressing for 30°C days and 24°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 30°C daytime heat. Evening temperatures settle at 24°C, a modest 6°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. A compact foldable umbrella weighs almost nothing and earns its keep across 11 potential rainy days. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region.
Local tip: Temple and religious site visits require covered shoulders and knees in most of Tokyo's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.
Events in Tokyo in August
Obon Festival
CulturalMid-August (13-16)
Buddhist tradition of honoring ancestral spirits. Many Tokyo residents return to hometowns, making the city unusually quiet. Bon Odori folk dancing events in local parks.
TokyoWhat to Pack for Tokyo in August
Based on 30°C average highs and 11 rainy days
- Light layers for morning and evening
- Breathable T-shirts and comfortable trousers
- UV-protective sunglasses
- Quick-dry travel towel
- Anti-chafe balm for long walking days
- Moisture-wicking synthetic fabrics for active days
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- SPF 30+ sunscreen
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Tokyo in August
- Early morning walk through Tokyo's historic market districtBest before 9amTemperatures are still manageable at 26°C before the midday heat builds
- Open-air rooftop dining at sunsetFrom 6pm onwardsThe 30°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
- Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
- Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Attend Obon FestivalCheck specific event datesA once-yearly event that defines this city in this month and draws visitors from around the world
- Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in August, with vendors setting up specifically for warm evenings
Why is Tokyo warm in August?
Tokyo's August heat is driven by the Asian summer monsoon system, as the low-pressure cell that forms over the heated landmass draws warm, humid air from the oceans. The result is temperatures averaging 30°C with high moisture in the air. Overnight temperatures remain elevated at 24°C, as clouds and humidity prevent the earth from radiating heat away after sunset. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Tokyo in August
In August, Tokyo experiences average highs of 30°C (86°F) and lows of 24°C (75°F). Expect around 11 rainy days and 10 hours of sunshine per day, with humidity averaging 65%. The 6°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 9, so sun protection is advisable on clear days.
Tokyo typically sees 11 rainy days in August, with total precipitation of around 115mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Tokyo typically sees 4-6 fewer rain days than August.
Pack lightweight, breathable clothing (linen or cotton), a wide-brim sun hat, SPF 50+ sunscreen, and a refillable water bottle for Tokyo in August. The 30°C daytime heat demands sun protection during midday hours, typically 11am to 4pm. A compact travel umbrella is also worth packing, as 11 rainy days means afternoon showers are a real possibility. Quick-dry synthetic fabrics are preferable to cotton in 65% humidity.
Yes, August is an excellent time to visit Tokyo. With 10 daily sunshine hours and only 11 rainy days, conditions are ideal for sightseeing and outdoor activities. Temperatures averaging 30°C during the day are comfortable for long walks and outdoor dining. This is peak travel season, so booking accommodation in advance and arriving at popular attractions early in the morning helps avoid the busiest periods.
The average high temperature in Tokyo in August is 30°C (86°F), and the average low is 24°C (75°F). The mean daily temperature is approximately 27°C (81°F). The day-to-night range of 6°C is moderate, meaning a single light jacket covers most situations. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Tokyo is generally August. August offers the most sunshine at 10 hours per day and only 11 rainy days. Average temperatures reach 30°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around August gives you the best chance of dry, bright weather.
August is shoulder or low season in Tokyo, meaning fewer tourists and generally lower prices than peak months. With 10 sunshine hours and 11 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In August, Tokyo suits a range of activities thanks to warm temperatures of 30°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 10 hours of sunshine, parks and waterfront walks are particularly enjoyable.
August ranks 1st sunniest of the year in Tokyo, with an average 10 daily sunshine hours. The driest months are January, December, and February. August is the hottest month (30°C avg high); January is the coolest (8°C). From here, temperatures fall 4°C into September. Compared to last month (July: 28°C high, 13 rain days), August is warmer and drier. August is among the top three sunniest months to visit Tokyo.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 8°C | 0°C | 6 | 8h | View |
| February | 9°C | 1°C | 8 | 8h | View |
| March | 12°C | 4°C | 12 | 8h | View |
| April | 17°C | 9°C | 11 | 9h | View |
| May | 22°C | 14°C | 11 | 9h | View |
| June | 25°C | 18°C | 15 | 8h | View |
| July | 28°C | 22°C | 13 | 9h | View |
| August | 30°C | 24°C | 11 | 10h | View |
| September | 26°C | 20°C | 14 | 8h | View |
| October | 21°C | 14°C | 13 | 7h | View |
| November | 16°C | 8°C | 9 | 7h | View |
| December | 11°C | 3°C | 7 | 7h | View |
January
6 rain days, 8h sun
8°0°
February
8 rain days, 8h sun
9°1°
March
12 rain days, 8h sun
12°4°
April
11 rain days, 9h sun
17°9°
May
11 rain days, 9h sun
22°14°
June
15 rain days, 8h sun
25°18°
July
13 rain days, 9h sun
28°22°
August
11 rain days, 10h sun
30°24°
September
14 rain days, 8h sun
26°20°
October
13 rain days, 7h sun
21°14°
November
9 rain days, 7h sun
16°8°
December
7 rain days, 7h sun
11°3°
Other Months in Tokyo
Plan Your Trip to Tokyo
Nearby Destinations
Cities within 500 km with comparable weather conditions
Data Sources for Tokyo
Climate normals represent 30-year averages (1991-2020). Individual years may vary.