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Kasuga, Fukuoka Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Kasuga, Fukuoka?
Kasuga, Fukuoka gets 1635 mm of precipitation a year over about 117 rainy days. August is the warmest month (average high 32°C) and January the coldest (average low 3°C).
Humid subtropical climate
Kasuga, Fukuoka has hot summers and chilly winters. Daytime highs range from about 10°C in January to 32°C in August. July is usually the wettest month. The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 4° | 12° |
| Spring | Mar–May | 11° | 19° |
| Summer | Jun–Aug | 23° | 30° |
| Autumn | Sep–Nov | 16° | 23° |
How much rain does Kasuga get?
Kasuga gets 1635 mm of precipitation in an average year, spread over about 117 days with measurable rain. That is more rainy days than 54% of Japan.
July is the wettest month, with 291 mm. February is the driest, with 61 mm. July has the most rainy days, about 12.
The longest dry spell in the last five years lasted 19 days, to November 13, 2022.
From October 2025 to September 2026 Kasuga got 3028 mm of rain, against a normal of 1635 mm for those months. September 2026 had the most, with 1477 mm.
Kasuga weather by month
Kasuga weather in January
In January, Kasuga averages a high of 10°C and a low of 3°C. It gets 71 mm of precipitation over about 11 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The January record high is 20°C (2002) and the record low is -4°C (1970).
Kasuga weather in February
In February, Kasuga averages a high of 12°C and a low of 4°C. It gets 61 mm of precipitation over about 9 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The February record high is 24°C (2004) and the record low is -5°C (1977).
Kasuga weather in March
In March, Kasuga averages a high of 15°C and a low of 7°C. It gets 103 mm of precipitation over about 11 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The March record high is 27°C (2025) and the record low is -4°C (1994).
Kasuga weather in April
In April, Kasuga averages a high of 20°C and a low of 11°C. It gets 114 mm of precipitation over about 9 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The April record high is 30°C (2004) and the record low is 1°C (1972). April is one of the most comfortable months to visit.
Kasuga weather in May
In May, Kasuga averages a high of 24°C and a low of 16°C. It gets 135 mm of precipitation over about 9 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The May record high is 32°C (1998) and the record low is 7°C (1974). May is one of the most comfortable months to visit.
Kasuga weather in June
In June, Kasuga averages a high of 27°C and a low of 20°C. It gets 242 mm of precipitation over about 12 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2004) and the record low is 11°C (1978).
Kasuga weather in July
In July, Kasuga averages a high of 31°C and a low of 24°C. It gets 291 mm of precipitation over about 12 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The July record high is 38°C (2018) and the record low is 16°C (2026).
Kasuga weather in August
In August, Kasuga averages a high of 32°C and a low of 25°C. It gets 198 mm of precipitation over about 10 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The August record high is 38°C (2018) and the record low is 17°C (1972).
Kasuga weather in September
In September, Kasuga averages a high of 28°C and a low of 21°C. It gets 174 mm of precipitation over about 10 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The September record high is 37°C (1990) and the record low is 11°C (1987).
Kasuga weather in October
In October, Kasuga averages a high of 23°C and a low of 16°C. It gets 95 mm of precipitation over about 7 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The October record high is 32°C (2019) and the record low is 5°C (1986). October is one of the most comfortable months to visit.
Kasuga weather in November
In November, Kasuga averages a high of 18°C and a low of 10°C. It gets 87 mm of precipitation over about 8 rainy days. Estimated sunshine is 49% of daylight hours, derived from ERA5 cloud cover. The November record high is 28°C (2011) and the record low is 1°C (1976). November is one of the most comfortable months to visit.
Kasuga weather in December
In December, Kasuga averages a high of 13°C and a low of 5°C. It gets 66 mm of precipitation over about 10 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The December record high is 26°C (2018) and the record low is -3°C (1976).
Sunshine, humidity and wind in Kasuga
October is the sunniest month in Kasuga, with estimated sunshine of 52% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 21%. The annual cloud-cover estimate is 37% of daylight hours; it is not a measurement of sunshine duration. Kasuga is cloudier than 61% of Japan.
Humidity peaks in July at 80% and is lowest in April at 67%.
Kasuga has about 34 days a year above 32°C. Kasuga is hotter than 88% of Japan.
Kasuga weather records
These records cover FUKUOKA during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Kasuga station is 38°C, on July 20, 2018. The coldest is -5°C, on February 16, 1977.
The wettest day in the available station history brought 555 mm of precipitation, on July 1, 2026.
35 all-time records have been set at the station since 1970.
The best time to visit Kasuga
The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.
Winter (December–February) is chilly, with average highs around 12°C and lows near 4°C.
Spring (March–May) is mild, with average highs around 20°C and lows near 11°C.
Summer (June–August) is hot, with average highs around 30°C and lows near 23°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 23°C and lows near 16°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 3° | 10° | 71 mm | 11 | 71% | 37% | 20° | -4° |
| February | 4° | 12° | 61 mm | 9 | 69% | 37% | 24° | -5° |
| March | 7° | 15° | 103 mm | 11 | 69% | 36% | 27° | -4° |
| April | 11° | 20° | 114 mm | 9 | 67% | 38% | 30° | 1° |
| May | 16° | 24° | 135 mm | 9 | 70% | 33% | 32° | 7° |
| June | 20° | 27° | 242 mm | 12 | 78% | 21% | 37° | 11° |
| July | 24° | 31° | 291 mm | 12 | 80% | 23% | 38° | 16° |
| August | 25° | 32° | 198 mm | 10 | 77% | 39% | 38° | 17° |
| September | 21° | 28° | 174 mm | 10 | 77% | 38% | 37° | 11° |
| October | 16° | 23° | 95 mm | 7 | 72% | 52% | 32° | 5° |
| November | 10° | 18° | 87 mm | 8 | 72% | 49% | 28° | 1° |
| December | 5° | 13° | 66 mm | 10 | 68% | 40% | 26° | -3° |
Station: FUKUOKA, 10 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Kasuga climate questions
How much rain does Kasuga get?
Kasuga gets 1635 mm of precipitation in an average year, over about 117 rainy days.
What is the wettest month in Kasuga?
July is the wettest month in Kasuga, with 291 mm. February is the driest, with 61 mm.
How many rainy days does Kasuga have a year?
Kasuga has about 117 days with measurable rain in an average year. July has the most, about 12.
What is the hottest month in Kasuga?
August is the warmest month in Kasuga, with an average high of 32°C.
What is the coldest month in Kasuga?
January is the coldest month in Kasuga, with an average low of 3°C.
What is the record high temperature in Kasuga?
Within the available 1970–2026 station history, the record high at the Kasuga station is 38°C, set on July 20, 2018. The record low is -5°C, on February 16, 1977.
What is the sunniest month in Kasuga?
October is the sunniest month in Kasuga, with estimated sunshine of 52% of daylight hours from ERA5 cloud cover. June is the cloudiest.
What is the best time to visit Kasuga?
The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 21°C.