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Fukuoka in August: weather, what to wear and what's on

In August, Fukuoka averages a high of 32.5°C (90°F) and a low of 25.4°C (78°F), with 210.0 mm of rain on about 9.8 days (JMA, 1991–2020). It is Fukuoka's hottest month.

Updated

32.5°Caverage high
25.4°Caverage low
9.8 dayswet days

Hot

Fukuoka weather in August

Averages for 1991–2020 at the JMA's Fukuoka station (2 m above sea level).

High
32.5°C (90°F)
Low
25.4°C (78°F)
Precipitation
210.0 mm
Wet days
9.8 days
Sunshine
201 hours

Highs are 1.3°C above July and 3.9°C above September.

That is 11.2°C above Fukuoka's yearly average high of 21.3°C.

Of our 14 places with temperature records, Fukuoka is the 6th warmest in August: 0.3°C cooler than Hiroshima and 0.7°C warmer than Naha.

August is Fukuoka's 3rd wettest month (210.0 mm).

Of our 15 places, Fukuoka has the 4th highest precipitation in August: 30.0 mm less than Naha and 12.1 mm more than Takayama.

Rain of 1 mm or more falls on 9.8 days, and 10 mm or more on 5.0 days.

Rain of 30 mm or more in one day falls on 2.4 days, and 50 mm or more on 1.1 days.

24.9 days reach 30°C or more, and 5.7 reach 35°C or more.

On 19.7 nights the low stays at 25°C or above.

The sun is out for 40% or more of the possible hours on 18.9 days, and 2.0 days have under 0.1 hours of sunshine.

By the JMA's cloud records, 1.7 days are clear and 10.5 are overcast.

On 15 August 2027 the sun rises at 5:40 and sets at 19:05 in Fukuoka, giving 13 hours 25 minutes of daylight (NAOJ).

Average temperature
28.4°C (83°F)
Humidity
72%
Days of 25°C or more
30.8 days

Early, mid and late August

Fukuoka in August by ten-day period: averages for 1991–2020 (JMA)
DaysHighLowPrecipitation
1–10 August33.3°C26.1°C46.1 mm
11–20 August32.6°C25.7°C78.7 mm
21–31 August31.6°C24.6°C85.1 mm

By the last ten days of August the average high in Fukuoka is 1.7°C lower than in the first ten.

By ten-day totals, 21–31 August is the wettest (85.1 mm) and 1–10 August the driest (46.1 mm).

Green rice terraces climbing a hillside at Tsuzura in Fukuoka Prefecture
Photo: Fukuoka-Tsuzura Rice Terrace in an Early Summer-xl.jpg by うきは市 (CC BY 4.0, cropped), via Wikimedia Commons.

What to wear in Fukuoka in August

Hot: highs around 32.5°C

  • Short sleeves and light, breathable clothes. A light layer for cold air-conditioning on trains and in shops.
  • Heat: 24.9 days reach 30°C or more. A hat, water and sunscreen.
  • Warm nights: on 19.7 nights the temperature stays at 25°C or above.
  • A folding umbrella: rain falls on 9.8 days.

Pack

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

Rainy season and typhoons

In an average August, 1.1 typhoons come within 300 km of the northern Kyushu region; across Japan, 3.3 come within 300 km and 0.9 make landfall (JMA, 1991–2020).

August records in Fukuoka

The extremes the JMA has measured in August at its Fukuoka station.

Hottest August day
39.0°C (102°F) on 26 August 2026 (records since 1890)
Coldest August night
15.4°C (60°F) on 26 August 1956 (records since 1890)
Wettest August day
231.5 mm on 14 August 2021 (records since 1890)

Holidays and crowds in August

National holidays in August 2027:

  • Wed 11 August — Mountain Day

In August 2025, hotels and inns across Fukuoka Prefecture were 71.2% full on average (7th busiest of 12 months). Foreign guests spent 671,870 nights there that month (Japan Tourism Agency). That compares with 68.8% in July and 69.9% in September.

What's on in Fukuoka in August

Events in Fukuoka in August: dates from each organizer's official page
EventWhenWhere and what
Hakata Summer Festivalはかた夏まつりEarly to mid-August, for 13 days (4 to 16 August in 2026)JR Hakata Station Square, Hakata-ku. A bon dance is held around a yagura tower with taiko drum performances, along with food stalls and festival games. A lantern tower about 8 m high with 217 lanterns stands as the symbol of the festival. The opening ceremony on 4 August at about 18:00 is a group water-sprinkling (uchimizu) with foreign residents of Fukuoka as guests. Open 17:00 to 22:00 (last order 21:45). May be cancelled in bad weather at the organiser's decision. Official page
Obon Mitama Matsuri, Fukuoka Gokoku Shrineお盆みたままつり(福岡縣護国神社)Mid-August, for four days (13 to 16 August in 2026)Fukuoka Gokoku Shrine, Roppommatsu 1-chome, Chuo-ku. About 4,000 lanterns are lit in the shrine grounds, and a flea-market night market is held on the approach each evening. The lanterns are lit from 18:30 to 21:00 and the night market runs from 15:00 to 21:00. Paid parking is available but expected to be very crowded; public transport is recommended. Official page

Fukuoka before and after August

Fukuoka: July, August and September (JMA, 1991–2020)
MonthHighLowPrecipitationWet days
July31.2°C (−1.3°C)24.6°C (−0.8°C)299.1 mm (+89.1 mm)11.0 days (+1.2 days)
August32.5°C25.4°C210.0 mm9.8 days
September28.6°C (−3.9°C)21.6°C (−3.8°C)175.1 mm (−34.9 mm)9.7 days (−0.1 days)

Other places in August

August: Fukuoka against five other places (JMA, 1991–2020)
PlaceHighAgainst FukuokaWet daysAgainst Fukuoka
Tokyo31.3°C−1.2°C7.9 days−1.9 days
Kyoto33.7°C+1.2°C8.3 days−1.5 days
Osaka33.7°C+1.2°C7.2 days−2.6 days
Sapporo26.4°C−6.1°C9.5 days−0.3 days
OkinawaNaha31.8°C−0.7°C12.3 days+2.5 days

Frequently asked questions

What is the weather like in Fukuoka in August?

The average high is 32.5°C (90°F) and the average low 25.4°C (78°F). 210.0 mm of rain falls on about 9.8 days (JMA, 1991–2020).

What should I wear in Fukuoka in August?

Short sleeves and light, breathable clothes. A light layer for cold air-conditioning on trains and in shops. Heat: 24.9 days reach 30°C or more. A hat, water and sunscreen. Warm nights: on 19.7 nights the temperature stays at 25°C or above. A folding umbrella: rain falls on 9.8 days.

Is Fukuoka busy in August?

In August 2025, hotels and inns across Fukuoka Prefecture were 71.2% full on average (7th busiest of 12 months). Foreign guests spent 671,870 nights there that month (Japan Tourism Agency).

What are the record temperatures for August in Fukuoka?

The highest temperature the JMA has recorded in Fukuoka in August is 39.0°C (102°F), on 26 August 2026. The lowest is 15.4°C (60°F), on 26 August 1956.

What events are on in Fukuoka in August?

Hakata Summer Festival: Early to mid-August, for 13 days (4 to 16 August in 2026). Obon Mitama Matsuri, Fukuoka Gokoku Shrine: Mid-August, for four days (13 to 16 August in 2026).

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