January 10° · ☂ 5 February 11° · ☂ 6 March 15° · ☂ 10 April 20° · ☂ 9 ★ May25° · ☂ 9 June 28° · ☂ 11 July 32° · ☂ 11 August 34° · ☂ 8 September 30° · ☂ 10 ★ October24° · ☂ 9 November 18° · ☂ 6 December 12° · ☂ 6 Osaka in August:very hot, Osaka, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 34° Hottest day 39° (2018)
Mean low 26° Coldest night 18.9° (2018)
Rain days 8 days 2-17 by year
Rainfall 147mm Daylight 13.9 → 13.0 h
Osaka's 12 months i Best: May and October
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Sightseeing on foot Poorhot, muggy and storm risk
Humidity 70% 29 muggy days
Clear days 7 days 10 overcast days
Mean wind 8 km/h Rarely windy
Sunrise / sunset (15th) 05:18 / 18:47 Daylight 13.9 → 13.0 h
Osaka in August The hottest month, so move early in the morning or after sunset and rest in underground malls or department stores at midday. Rain is lighter than in July, but a typhoon can disrupt flights.
It was a hot month: 34°C by day and 26°C after dark. 8 rain days in a typical August: noticeable, but most days stayed dry. It varied a lot from year to year. August 2020 had 2 rain days; 2014 had 17.
With 28 days above 30°C on average, most of the month felt like high summer. Each rainy day brought about 20 mm, closer to downpours than drizzle.
Typhoons i 8 of the last 20 years had a tropical storm pass within 300 km this month.
Noru (2017), 21 km away typhoon strength Lan (2023), 38 km away typhoon strength Halong (2014), 64 km away typhoon strength 1 2 3 4 5 2 6 7 7 8 8 10 9 5 10 11 12
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
August 1 Sunday 1 rain in 2 of 20 yrs 2/20 34° 26° August 2 Monday 2 rain in 2 of 20 yrs 2/20 34° 26° August 3 Tuesday 3 rain in 4 of 20 yrs 4/20 34° 26° August 4 Wednesday 4 rain in 2 of 20 yrs 2/20 35° 26° August 5 Thursday 5 rain in 3 of 20 yrs 3/20 35° 27° August 6 Friday 6 rain in 8 of 20 yrs 8/20 35° 27° August 7 Saturday 7 rain in 4 of 20 yrs 4/20 34° 26° 1-7 rain on 18% of days 35° 26°
August 8 Sunday 8 rain in 2 of 20 yrs 2/20 34° 26° August 9 Monday 9 rain in 5 of 20 yrs 5/20 34° 26° August 10 Tuesday 10 rain in 4 of 20 yrs 4/20 34° 27° August 11 Wednesday 11 rain in 3 of 20 yrs 3/20 35° 26° August 12 Thursday 12 rain in 6 of 20 yrs 6/20 34° 26° August 13 Friday 13 rain in 5 of 20 yrs 5/20 34° 26° August 14 Saturday 14 rain in 7 of 20 yrs 7/20 34° 27° 8-14 rain on 23% of days 34° 26°
August 15 Sunday 15 rain in 6 of 20 yrs 6/20 34° 26° August 16 Monday 16 rain in 6 of 20 yrs 6/20 34° 26° August 17 Tuesday 17 rain in 5 of 20 yrs 5/20 33° 26° August 18 Wednesday 18 rain in 5 of 20 yrs 5/20 34° 25° August 19 Thursday 19 rain in 7 of 20 yrs 7/20 34° 26° August 20 Friday 20 rain in 5 of 20 yrs 5/20 34° 26° August 21 Saturday 21 rain in 5 of 20 yrs 5/20 34° 26° 15-21 rain on 28% of days 34° 26°
August 22 Sunday 22 rain in 4 of 20 yrs 4/20 34° 26° August 23 Monday 23 rain in 8 of 20 yrs 8/20 33° 26° August 24 Tuesday 24 rain in 7 of 20 yrs 7/20 33° 25° August 25 Wednesday 25 rain in 8 of 20 yrs 8/20 33° 26° August 26 Thursday 26 rain in 2 of 20 yrs 2/20 33° 25° August 27 Friday 27 rain in 1 of 20 yrs 1/20 33° 25° August 28 Saturday 28 rain in 4 of 20 yrs 4/20 33° 25° 22-28 rain on 24% of days 33° 25°
August 29 Sunday 29 rain in 5 of 20 yrs 5/20 33° 25° August 30 Monday 30 rain in 7 of 20 yrs 7/20 32° 25° August 31 Tuesday 31 rain in 7 of 20 yrs 7/20 33° 25°
29-31 rain on 32% of days 32° 25°
1-7 rain on 18% of days 35° 26° 8-14 rain on 23% of days 34° 26° 15-21 rain on 28% of days 34° 26° 22-28 rain on 24% of days 33° 25° 29-31 rain on 32% of days 32° 25°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
August 1 Tuesday 1 rain in 2 of 20 yrs 2/20 34° 26° August 2 Wednesday 2 rain in 2 of 20 yrs 2/20 34° 26° August 3 Thursday 3 rain in 4 of 20 yrs 4/20 34° 26° August 4 Friday 4 rain in 2 of 20 yrs 2/20 35° 26° August 5 Saturday 5 rain in 3 of 20 yrs 3/20 35° 27° 1-5 rain on 13% of days 35° 26°
August 6 Sunday 6 rain in 8 of 20 yrs 8/20 35° 27° August 7 Monday 7 rain in 4 of 20 yrs 4/20 34° 26° August 8 Tuesday 8 rain in 2 of 20 yrs 2/20 34° 26° August 9 Wednesday 9 rain in 5 of 20 yrs 5/20 34° 26° August 10 Thursday 10 rain in 4 of 20 yrs 4/20 34° 27° August 11 Friday 11 rain in 3 of 20 yrs 3/20 35° 26° August 12 Saturday 12 rain in 6 of 20 yrs 6/20 34° 26° 6-12 rain on 23% of days 34° 26°
August 13 Sunday 13 rain in 5 of 20 yrs 5/20 34° 26° August 14 Monday 14 rain in 7 of 20 yrs 7/20 34° 27° August 15 Tuesday 15 rain in 6 of 20 yrs 6/20 34° 26° August 16 Wednesday 16 rain in 6 of 20 yrs 6/20 34° 26° August 17 Thursday 17 rain in 5 of 20 yrs 5/20 33° 26° August 18 Friday 18 rain in 5 of 20 yrs 5/20 34° 25° August 19 Saturday 19 rain in 7 of 20 yrs 7/20 34° 26° 13-19 rain on 29% of days 34° 26°
August 20 Sunday 20 rain in 5 of 20 yrs 5/20 34° 26° August 21 Monday 21 rain in 5 of 20 yrs 5/20 34° 26° August 22 Tuesday 22 rain in 4 of 20 yrs 4/20 34° 26° August 23 Wednesday 23 rain in 8 of 20 yrs 8/20 33° 26° August 24 Thursday 24 rain in 7 of 20 yrs 7/20 33° 25° August 25 Friday 25 rain in 8 of 20 yrs 8/20 33° 26° August 26 Saturday 26 rain in 2 of 20 yrs 2/20 33° 25° 20-26 rain on 28% of days 34° 26°
August 27 Sunday 27 rain in 1 of 20 yrs 1/20 33° 25° August 28 Monday 28 rain in 4 of 20 yrs 4/20 33° 25° August 29 Tuesday 29 rain in 5 of 20 yrs 5/20 33° 25° August 30 Wednesday 30 rain in 7 of 20 yrs 7/20 32° 25° August 31 Thursday 31 rain in 7 of 20 yrs 7/20 33° 25°
27-31 rain on 24% of days 33° 25°
1-5 rain on 13% of days 35° 26° 6-12 rain on 23% of days 34° 26° 13-19 rain on 29% of days 34° 26° 20-26 rain on 28% of days 34° 26° 27-31 rain on 24% of days 33° 25°
Tap another date to change
2006 none
2007 none
2008 6mm
2009 1mm
2010 none
2011 none
2012 3mm
2013 4mm
2014 7mm
2015 none
2016 5mm
2017 none
2018 none
2019 none
2020 none
2021 none
2022 2mm
2023 none
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 24° 29° 35° 40° 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, 2014 had 17.
What to pack Loose, light-colored clothes, sandals and a hat did most of the work at 34°C. Sights went in the morning, with a break in the middle of the day.
Rain was occasional. A compact umbrella in the bag is enough.
Common questions Does it rain a lot in Osaka in August? Over the past 20 years August averaged 8 rain days (1 mm or more) out of 31. Individual years ran from 2 in the driest to 17 in the wettest.
What should I wear in Osaka in August? Days averaged 34°C and nights 26°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.
Is August a good time to visit Osaka? On warmth and rain days alone, Osaka's easiest months were May and October. August ranked 7 of 12.
Is Osaka humid in August? Mean relative humidity was 70%, with about 29 muggy days (dew point of 20°C or more) in the month.
Previous month Osaka in July Next month Osaka in September Whole year Osaka weather by month Where to go August By country Japan: all cities this month Compare Compare with Tokyo Compare Compare with Fukuoka