January 10° · ☂ 4 February 11° · ☂ 6 March 15° · ☂ 8 April 20° · ☂ 10 ★ May24° · ☂ 10 June 27° · ☂ 11 July 31° · ☂ 11 August 32° · ☂ 9 September 28° · ☂ 11 October 22° · ☂ 11 November 17° · ☂ 8 December 12° · ☂ 6 Tokyo in August:seriously hot, occasional rain Tokyo, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 32° Hottest day 37.8° (2024)
Mean low 24° Coldest night 16.9° (2018)
Rain days 9 days 2-15 by year
Rainfall 148mm Daylight 14.0 → 13.0 h
Tokyo's 12 months i Best: May
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Sightseeing on foot Poorhot, muggy and storm risk
Humidity 76% 28 muggy days
Clear days 5 days 12 overcast days
Mean wind 12 km/h 1 windy day
Sunrise / sunset (15th) 05:00 / 18:32 Daylight 14.0 → 13.0 h
Tokyo in August The hottest month of the year. The rainy season is over but sudden showers are frequent and nights stay muggy. A typhoon can pass nearby in some years, so check the weather before you go. Plan mostly indoor activities for the daytime.
Highs averaged 32°C and lows stayed at 24°C, so the heat hung on long after sunset. With about 9 rain days, showers were an occasional nuisance rather than the rule. A visitor in 2020 met 2 rain days; one in 2016 met 15. The average of 9 hid that gap.
Highs topped 30°C on 23 days of the month on average. Mixing in indoor stops at midday made sense. August 2025 averaged 34.6°C by day, 3.0°C above the 20-year mean. Wet days did not mess around: about 17 mm each, the kind of rain that drives you into a doorway.
Typhoons i 7 of the last 20 years had a tropical storm pass within 300 km this month.
Mindulle (2016), 37 km away typhoon strength Maria (2006), 99 km away tropical storm Shanshan (2018), 118 km away typhoon strength 1 2 3 4 1 5 2 6 4 7 7 8 10 9 9 10 11 12
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
August 1 Sunday 1 rain in 5 of 20 yrs 5/20 31° 23° August 2 Monday 2 rain in 4 of 20 yrs 4/20 32° 24° August 3 Tuesday 3 rain in 0 of 20 yrs 0/20 33° 24° August 4 Wednesday 4 rain in 2 of 20 yrs 2/20 33° 24° August 5 Thursday 5 rain in 3 of 20 yrs 3/20 33° 24° August 6 Friday 6 rain in 3 of 20 yrs 3/20 33° 25° August 7 Saturday 7 rain in 5 of 20 yrs 5/20 33° 24° 1-7 rain on 16% of days 32° 24°
August 8 Sunday 8 rain in 6 of 20 yrs 6/20 32° 24° August 9 Monday 9 rain in 6 of 20 yrs 6/20 32° 24° August 10 Tuesday 10 rain in 6 of 20 yrs 6/20 32° 24° August 11 Wednesday 11 rain in 6 of 20 yrs 6/20 32° 25° August 12 Thursday 12 rain in 6 of 20 yrs 6/20 32° 24° August 13 Friday 13 rain in 8 of 20 yrs 8/20 32° 24° August 14 Saturday 14 rain in 6 of 20 yrs 6/20 31° 24° 8-14 rain on 31% of days 32° 24°
August 15 Sunday 15 rain in 5 of 20 yrs 5/20 32° 24° August 16 Monday 16 rain in 6 of 20 yrs 6/20 32° 24° August 17 Tuesday 17 rain in 7 of 20 yrs 7/20 32° 24° August 18 Wednesday 18 rain in 5 of 20 yrs 5/20 32° 24° August 19 Thursday 19 rain in 4 of 20 yrs 4/20 32° 24° August 20 Friday 20 rain in 7 of 20 yrs 7/20 31° 24° August 21 Saturday 21 rain in 4 of 20 yrs 4/20 32° 24° 15-21 rain on 27% of days 32° 24°
August 22 Sunday 22 rain in 5 of 20 yrs 5/20 32° 24° August 23 Monday 23 rain in 8 of 20 yrs 8/20 31° 24° August 24 Tuesday 24 rain in 6 of 20 yrs 6/20 31° 24° August 25 Wednesday 25 rain in 2 of 20 yrs 2/20 31° 23° August 26 Thursday 26 rain in 7 of 20 yrs 7/20 31° 23° August 27 Friday 27 rain in 9 of 20 yrs 9/20 31° 23° August 28 Saturday 28 rain in 7 of 20 yrs 7/20 30° 23° 22-28 rain on 31% of days 31° 23°
August 29 Sunday 29 rain in 6 of 20 yrs 6/20 30° 23° August 30 Monday 30 rain in 9 of 20 yrs 9/20 30° 23° August 31 Tuesday 31 rain in 7 of 20 yrs 7/20 30° 23°
29-31 rain on 37% of days 30° 23°
1-7 rain on 16% of days 32° 24° 8-14 rain on 31% of days 32° 24° 15-21 rain on 27% of days 32° 24° 22-28 rain on 31% of days 31° 23° 29-31 rain on 37% of days 30° 23°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
August 1 Tuesday 1 rain in 5 of 20 yrs 5/20 31° 23° August 2 Wednesday 2 rain in 4 of 20 yrs 4/20 32° 24° August 3 Thursday 3 rain in 0 of 20 yrs 0/20 33° 24° August 4 Friday 4 rain in 2 of 20 yrs 2/20 33° 24° August 5 Saturday 5 rain in 3 of 20 yrs 3/20 33° 24° 1-5 rain on 14% of days 32° 24°
August 6 Sunday 6 rain in 3 of 20 yrs 3/20 33° 25° August 7 Monday 7 rain in 5 of 20 yrs 5/20 33° 24° August 8 Tuesday 8 rain in 6 of 20 yrs 6/20 32° 24° August 9 Wednesday 9 rain in 6 of 20 yrs 6/20 32° 24° August 10 Thursday 10 rain in 6 of 20 yrs 6/20 32° 24° August 11 Friday 11 rain in 6 of 20 yrs 6/20 32° 25° August 12 Saturday 12 rain in 6 of 20 yrs 6/20 32° 24° 6-12 rain on 27% of days 32° 24°
August 13 Sunday 13 rain in 8 of 20 yrs 8/20 32° 24° August 14 Monday 14 rain in 6 of 20 yrs 6/20 31° 24° August 15 Tuesday 15 rain in 5 of 20 yrs 5/20 32° 24° August 16 Wednesday 16 rain in 6 of 20 yrs 6/20 32° 24° August 17 Thursday 17 rain in 7 of 20 yrs 7/20 32° 24° August 18 Friday 18 rain in 5 of 20 yrs 5/20 32° 24° August 19 Saturday 19 rain in 4 of 20 yrs 4/20 32° 24° 13-19 rain on 29% of days 32° 24°
August 20 Sunday 20 rain in 7 of 20 yrs 7/20 31° 24° August 21 Monday 21 rain in 4 of 20 yrs 4/20 32° 24° August 22 Tuesday 22 rain in 5 of 20 yrs 5/20 32° 24° August 23 Wednesday 23 rain in 8 of 20 yrs 8/20 31° 24° August 24 Thursday 24 rain in 6 of 20 yrs 6/20 31° 24° August 25 Friday 25 rain in 2 of 20 yrs 2/20 31° 23° August 26 Saturday 26 rain in 7 of 20 yrs 7/20 31° 23° 20-26 rain on 28% of days 31° 24°
August 27 Sunday 27 rain in 9 of 20 yrs 9/20 31° 23° August 28 Monday 28 rain in 7 of 20 yrs 7/20 30° 23° August 29 Tuesday 29 rain in 6 of 20 yrs 6/20 30° 23° August 30 Wednesday 30 rain in 9 of 20 yrs 9/20 30° 23° August 31 Thursday 31 rain in 7 of 20 yrs 7/20 30° 23°
27-31 rain on 38% of days 30° 23°
1-5 rain on 14% of days 32° 24° 6-12 rain on 27% of days 32° 24° 13-19 rain on 29% of days 32° 24° 20-26 rain on 28% of days 31° 24° 27-31 rain on 38% of days 30° 23°
Tap another date to change
2006 none
2007 none
2008 none
2009 none
2010 none
2011 11mm
2012 none
2013 9mm
2014 4mm
2015 none
2016 17mm
2017 none
2018 4mm
2019 5mm
2020 none
2021 none
2022 1mm
2023 4mm
2024 3mm
2025 none
Holidays in August (2027) August 11 Mountain DayAugust 13 to August 16 Obon 1 Local public holiday or break (busier, pricier)
Holidays in August (2028)
Day by day temperature i 21° 27° 33° 39° 1 8 15 22 29 31
Your trip dates, the past 20 years Trip dates August 1 (Sun) 2 (Mon) 3 (Tue) 4 (Wed) 5 (Thu) 6 (Fri) 7 (Sat) 8 (Sun) 9 (Mon) 10 (Tue) 11 (Wed) 12 (Thu) 13 (Fri) 14 (Sat) 15 (Sun) 16 (Mon) 17 (Tue) 18 (Wed) 19 (Thu) 20 (Fri) 21 (Sat) 22 (Sun) 23 (Mon) 24 (Tue) 25 (Wed) 26 (Thu) 27 (Fri) 28 (Sat) 29 (Sun) 30 (Mon) 31 (Tue) ~ August 1 (Sun) 2 (Mon) 3 (Tue) 4 (Wed) 5 (Thu) 6 (Fri) 7 (Sat) 8 (Sun) 9 (Mon) 10 (Tue) 11 (Wed) 12 (Thu) 13 (Fri) 14 (Sat) 15 (Sun) 16 (Mon) 17 (Tue) 18 (Wed) 19 (Thu) 20 (Fri) 21 (Sat) 22 (Sun) 23 (Mon) 24 (Tue) 25 (Wed) 26 (Thu) 27 (Fri) 28 (Sat) 29 (Sun) 30 (Mon) 31 (Tue) 1-7 8-14 15-21 22-end Whole month
You can also click two dates on the axis. Hover a cell to see that day's rain. By year Driest trips first
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Trip rain days Month rain days Tap a date to start, tap another to end. Each cell is that date in one year. '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25
of 20 Dates outside your trip are dimmed.
One row per year, one cell per day. 2020 had 2 rain days, 2016 had 15.
What to pack Loose linen or quick-dry cotton, a wide-brimmed hat and sunscreen were the basics. A water bottle stayed in the bag, and midday plans moved indoors.
With 9 rain days, a pocket umbrella was insurance rather than a daily tool.
Common questions Does it rain a lot in Tokyo in August? Over the past 20 years August averaged 9 rain days (1 mm or more) out of 31. Individual years ran from 2 in the driest to 15 in the wettest.
What should I wear in Tokyo in August? Days averaged 32°C and nights 24°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.
Is August a good time to visit Tokyo? On warmth and rain days alone, Tokyo's easiest month was May. August ranked 7 of 12.
Is Tokyo humid in August? Mean relative humidity was 76%, with about 28 muggy days (dew point of 20°C or more) in the month.
Previous month Tokyo in July Next month Tokyo in September Whole year Tokyo weather by month Where to go August By country Japan: all cities this month Compare Compare with Osaka