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Osaka in July: weather, what to wear and what's on

In July, Osaka averages a high of 31.8°C (89°F) and a low of 24.6°C (76°F), with 174.4 mm of rain on about 10.0 days (JMA, 1991–2020).

Updated

31.8°Caverage high
24.6°Caverage low
10.0 dayswet days

Hot

Osaka weather in July

Averages for 1991–2020 at the JMA's Osaka station (23 m above sea level).

High
31.8°C (89°F)
Low
24.6°C (76°F)
Precipitation
174.4 mm
Wet days
10.0 days
Sunshine
184 hours

Highs rise 3.8°C from June and climb another 1.9°C into August.

That is 10.5°C above Osaka's yearly average high of 21.3°C.

Of our 14 places with temperature records, Osaka is the 3rd warmest in July: 0.1°C cooler than Naha and 0.1°C warmer than Nara.

July is Osaka's 2nd wettest month (174.4 mm).

Of our 15 places, Osaka has the 4th lowest precipitation in July: 4.0 mm less than Kawaguchiko and 0.9 mm more than Nara.

Rain of 1 mm or more falls on 10.0 days, and 10 mm or more on 5.2 days.

Rain of 30 mm or more in one day falls on 1.9 days, and 50 mm or more on 0.6 days.

22.6 days reach 30°C or more, and 3.7 reach 35°C or more.

On 15.0 nights the low stays at 25°C or above.

The sun is out for 40% or more of the possible hours on 16.3 days, and 2.8 days have under 0.1 hours of sunshine.

By the JMA's cloud records, 0.6 days are clear and 16.3 are overcast.

On 15 July 2027 the sun rises at 4:56 and sets at 19:12 in Osaka, giving 14 hours 16 minutes of daylight (NAOJ).

Average temperature
27.7°C (82°F)
Humidity
70%
Days of 25°C or more
30.4 days

Early, mid and late July

Osaka in July by ten-day period: averages for 1991–2020 (JMA)
DaysHighLowPrecipitation
1–10 July30.3°C23.3°C82.6 mm
11–20 July31.7°C24.6°C61.4 mm
21–31 July33.3°C25.8°C30.4 mm

By the last ten days of July the average high in Osaka is 3.0°C higher than in the first ten.

By ten-day totals, 1–10 July is the wettest (82.6 mm) and 21–31 July the driest (30.4 mm).

A hoekago palanquin decorated with balloons and green leaves against red-and-white curtains at Aizen Matsuri in Osaka
Photo: Hoekago from Aizen Matsuri1 DSCN6773 20090702.JPG by Ogiyoshisan (Public domain, cropped), via Wikimedia Commons.

What to wear in Osaka in July

Hot: highs around 31.8°C

  • Short sleeves and light, breathable clothes. A light layer for cold air-conditioning on trains and in shops.
  • Heat: 22.6 days reach 30°C or more. A hat, water and sunscreen.
  • Warm nights: on 15.0 nights the temperature stays at 25°C or above.
  • An umbrella: rain falls on 10.0 days.

Pack

  • Umbrella
  • Hat, sunscreen and a water bottle
  • A light layer for air-conditioning

Rainy season and typhoons

In an average year (1991–2020) the JMA says the rainy season in Kinki starts around 6 June and ends around 19 July. In 2026 it started around 4 June and ended around 8 July.

In an average July, 0.6 typhoons come within 300 km of the Kinki region; across Japan, 2.1 come within 300 km and 0.6 make landfall (JMA, 1991–2020).

July records in Osaka

The extremes the JMA has measured in July at its Osaka station.

Hottest July day
38.7°C (102°F) on 29 July 2025 (records since 1883)
Coldest July night
14.8°C (59°F) on 10 July 1913 (records since 1883)
Wettest July day
155.5 mm on 17 July 2015 (records since 1883)

Holidays and crowds in July

National holidays in July 2027:

  • Mon 19 July — Marine Day
  • Sat 17 July to Mon 19 July: 3 days off in a row

In July 2025, hotels and inns across Osaka Prefecture were 74.9% full on average (10th busiest of 12 months). Foreign guests spent 2.01 million nights there that month (Japan Tourism Agency). That compares with 79.4% in June and 80.7% in August.

What's on in Osaka in July

Events in Osaka in July: dates from each organizer's official page
EventWhenWhere and what
Aizen Matsuri愛染まつり（愛染堂 勝鬘院）Late June to early July: 30 June to 2 July in 2026Aizendo Shomanin temple, Tennoji area, Osaka (nearest station: Shitennoji-mae Yuhigaoka). One of Osaka's three great summer festivals. The temple's hidden main image, Aizen Myoo, is shown in a special opening on all three days. On the first day a Hoekago (palanquin) parade runs from Tennoji to the temple, and priests of Shitenno-ji hold a Nagoshi-no-harae purification service. The festival ends and the lights go out at 21:00. There is no car or bicycle parking. Official page
Tenjin Matsuri天神祭24 and 25 July every year. Related rites run from a lucky day in late June to 25 July.Osaka Tenmangu shrine and the Okawa river (the former Yodo River), Osaka. On the 24th (Yoimiya): the Yoimiya-sai service, the Hokonagashi ritual and a lion dance parade through the parish. On the 25th (Honmiya): the main service, the divine spirit transfer, a procession on land (Rikutogyo), a boat procession on the Okawa river (Funatogyo) and offertory fireworks. On the night of the 25th many boats move along the Okawa river and fireworks are launched. Official page
Sumiyoshi Matsuri (Summer Festival)住吉祭（夏祭）Late July to 1 August. In 2026 the main rites were on 30 and 31 July and 1 August.Sumiyoshi Taisha, Sumiyoshi Ward, Osaka, and Shukuin Tongu in Sakai. Summer festival of Sumiyoshi Taisha. In 2026: mikoshi washing on 20 July, a mikoshi procession on 26 July from the shrine south along the Kishu Kaido to Shukuin Tongu in Sakai, Yoimiya-sai on 30 July, Nagoshi-no-harae and the main festival (Reitaisai) on 31 July, and Tongu-sai at Shukuin Tongu on 1 August. Stalls open inside the grounds on 31 July and 1 August from 14:00 to 19:30. The 26 July procession causes road restrictions along the route: Sumiyoshi Ward 16:30 to 17:30, Suminoe Ward 16:30 to 19:30 and Sakai 18:30 to 21:30 (2026 times). Official page

Osaka before and after July

Osaka: June, July and August (JMA, 1991–2020)
MonthHighLowPrecipitationWet days
June28.0°C (−3.8°C)20.3°C (−4.3°C)185.1 mm (+10.7 mm)11.3 days (+1.3 days)
July31.8°C24.6°C174.4 mm10.0 days
August33.7°C (+1.9°C)25.8°C (+1.2°C)113.0 mm (−61.4 mm)7.2 days (−2.8 days)

Other places in July

July: Osaka against five other places (JMA, 1991–2020)
PlaceHighAgainst OsakaWet daysAgainst Osaka
Tokyo29.9°C−1.9°C10.5 days+0.5 days
Kyoto32.0°C+0.2°C11.6 days+1.6 days
Sapporo25.4°C−6.4°C7.7 days−2.3 days
OkinawaNaha31.9°C+0.1°C9.4 days−0.6 days
Fukuoka31.2°C−0.6°C11.0 days+1.0 days

Frequently asked questions

What is the weather like in Osaka in July?

The average high is 31.8°C (89°F) and the average low 24.6°C (76°F). 174.4 mm of rain falls on about 10.0 days (JMA, 1991–2020).

What should I wear in Osaka in July?

Short sleeves and light, breathable clothes. A light layer for cold air-conditioning on trains and in shops. Heat: 22.6 days reach 30°C or more. A hat, water and sunscreen. Warm nights: on 15.0 nights the temperature stays at 25°C or above. An umbrella: rain falls on 10.0 days.

Is Osaka busy in July?

In July 2025, hotels and inns across Osaka Prefecture were 74.9% full on average (10th busiest of 12 months). Foreign guests spent 2.01 million nights there that month (Japan Tourism Agency).

What are the record temperatures for July in Osaka?

The highest temperature the JMA has recorded in Osaka in July is 38.7°C (102°F), on 29 July 2025. The lowest is 14.8°C (59°F), on 10 July 1913.

What events are on in Osaka in July?

Aizen Matsuri: Late June to early July: 30 June to 2 July in 2026. Tenjin Matsuri: 24 and 25 July every year. Related rites run from a lucky day in late June to 25 July. Sumiyoshi Matsuri (Summer Festival): Late July to 1 August. In 2026 the main rites were on 30 and 31 July and 1 August.

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Compiled by Japan Japan !! · Updated October 2, 2026