Weather in Fukuoka in September 2025
Average weather
Average temperature in Fukuoka in September
The expected average maximum temperature in September is +30°C with a maximum of +34°C and a minimum of +21°C.
The average maximum temperature goes up 8% by the end of the month, compared with the beginning of the month, from +28°C to +29°C.
Is Fukuoka warm or cold in September?
Fukuoka is typically warm in September.
Maximum temperatures go down compared to the previous month from +32°C to +28°C. The minimum temperature also goes down from +25°C to +22°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Fukuoka, here is the comparison with other months:
Climate in Fukuoka in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +32°C | +28°C | +23°C | ||||
| Min. temperature | ||||||
| +18°C | +13°C | +5°C | ||||
| Max. temperature | ||||||
| +37°C | +36°C | +32°C | ||||
| Rainfall | ||||||
| 205 mm | 197 mm | 93 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 78% | 78% | 74% | ||||
| Air pressure | ||||||
| 1008 HPa | 1011 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 3 | 4 | 9 | ||||
| Cloudy days | ||||||
| 6 | 8 | 11 | ||||
| Rainy days | ||||||
| 20 | 17 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +32°C in the day, the average maximum temperature lowers to +28°C. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 205 mm to 197 mm. Humidity levels don’t change as the month goes on, averaging around 78%. The average wind speed doesn’t change much during September, staying around 2 m/s. The good news is there are likely to be more sunny days in September, from 3 to 4.
But maybe it is worth considering traveling in October as the weather gets better.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Fukuoka is gradually increasing during September, going from 1 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Fukuoka?
Climate Change over Years
The climate in Fukuoka in September has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+19°C) and the highest in 1998 (+22°C). The driest year was 1994 with only 1124 mm of rainfall, and the wettest year was 2016 with 2856 mm.
FAQ
Is September a good time to visit Fukuoka?
Can you sunbathe in Fukuoka in September?
Is Fukuoka rainy in September?
Is it sunny in Fukuoka in September?
Other cities in Japan
Monthly weather in Fukuoka
Source of the data
For this page, we’ve looked at the typical weather in Fukuoka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.