Fukuoka weather in August
In August, Fukuoka has an average high of 32 °C89 °F and an average low of 23 °C74 °F, with about 204 mm8.0 in of precipitation. August is the warmest month of the year and ranks 3rd for precipitation.
How August compares with other months
Compared with July, August is 0.7 °C1.3 °F warmer on average and drier by 153 mm6.0 in. Compared with September, August is 3.8 °C6.8 °F warmer on average and wetter by 15 mm0.6 in. Daylight lasts about 13.4 hours around the middle of the month. Average relative humidity is 84% and the average cloud amount 65%.
Is August a good time to visit Fukuoka?
August is not among the most comfortable months by our comfort score: it is hot (average high 32 °C89 °F), it is fairly wet (204 mm8.0 in) and it is humid (84%). The most comfortable months in Fukuoka are October.
What to wear in August
For Fukuoka in August, pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
August in nearby places
Other months in Fukuoka
- January9 °C48 °F / 1 °C34 °F
- February11 °C52 °F / 2 °C35 °F
- March14 °C58 °F / 4 °C40 °F
- April20 °C68 °F / 9 °C48 °F
- May25 °C76 °F / 14 °C57 °F
- June27 °C81 °F / 18 °C65 °F
- July31 °C87 °F / 23 °C73 °F
- August32 °C89 °F / 23 °C74 °F
- September28 °C82 °F / 20 °C67 °F
- October23 °C73 °F / 14 °C57 °F
- November17 °C63 °F / 8 °C47 °F
- December11 °C52 °F / 3 °C38 °F
Frequently asked questions
How warm is Fukuoka in August?
In August the average high in Fukuoka is 32 °C (89 °F) and the average low is 23 °C (74 °F).
Does it rain a lot in Fukuoka in August?
On average about 204 mm (8.0 in) of precipitation falls in August; it ranks 3rd of the 12 months.
Is August the warmest month in Fukuoka?
Yes. August is the warmest month in Fukuoka. The coldest month is January, with an average low of 1 °C (34 °F).
How long is the day in Fukuoka in August?
In the middle of August the day in Fukuoka lasts about 13.4 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Fukuoka in August?
The average relative humidity in August is about 84%. Combined with warm days, it can feel muggy.
How cloudy is Fukuoka in August?
On average about 65% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 185 m, while Fukuoka lies at about 3 m. Temperatures on this page were therefore adjusted by +1.2 °C2.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.