Fukuoka weather by month & the best time to visit
Japan · major coastal city · humid subtropical climate

The best time to visit Fukuoka is October — its sunniest month (Sunshine Score 69/100), with April and May close behind. Fukuoka averages about 1,752 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 109 mm of rain in October.
When is the best time to visit Fukuoka?
For sunshine, the best time to visit Fukuoka is October, then April and May. The dullest month is January (6/100, 70 mm of rain). The full month-by-month picture is in the table below.
How sunny is Fukuoka?
Fukuoka isn't a sunny place by world standards: about 1,752 hours of sunshine a year. 63 Sunshine Score points separate October (69) from January (6), so the month you pick matters. It ranks #42 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 45% of the annual 1,899 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 6 | 9° / 48°F | 1° / 34°F | 70 mm | 2 | 13° / 55°F |
| February | 18 | 11° / 52°F | 2° / 36°F | 88 mm | 3 | 13° / 55°F |
| March | 34 | 14° / 57°F | 4° / 39°F | 118 mm | 4 | 13° / 55°F |
| April | 63 | 20° / 68°F | 9° / 48°F | 140 mm | 5 | 17° / 63°F |
| May | 61 | 25° / 77°F | 14° / 57°F | 157 mm | 6 | 20° / 68°F |
| June | 61 | 27° / 81°F | 18° / 64°F | 299 mm | 6 | 23° / 73°F |
| July | 61 | 31° / 88°F | 23° / 73°F | 357 mm | 7 | 28° / 82°F |
| August | 61 | 32° / 90°F | 23° / 73°F | 204 mm | 7 | 30° / 86°F |
| September | 61 | 28° / 82°F | 20° / 68°F | 189 mm | 6 | 29° / 84°F |
| October | 69 | 22° / 72°F | 14° / 57°F | 109 mm | 5 | 24° / 75°F |
| November | 54 | 17° / 63°F | 8° / 46°F | 89 mm | 3 | 20° / 68°F |
| December | 19 | 11° / 52°F | 3° / 37°F | 79 mm | 2 | 15° / 59°F |
Sea temperature in Fukuoka by month
The sea off Fukuoka is warmest in August at around 30°C / 86°F, and coolest in January at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Fukuoka compares month by month: Fukuoka vs Kitakyushu · Fukuoka vs Kumamoto · Fukuoka vs Nagasaki · Fukuoka vs Saga · all comparisons
Fukuoka: questions and answers
What kind of destination is Fukuoka?
Fukuoka is a major coastal city in Japan with a humid subtropical climate — the sea reaches 30°C at its warmest and is swimmable (21°C+) about 5 months a year.
How many hours of sunshine does Fukuoka get a year?
Fukuoka gets about 1,752 hours of sunshine a year, at its best around October.
When is the best time to visit Fukuoka?
The sunniest time to visit Fukuoka is October, when the Sunshine Score peaks at 69/100 (with April and May close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Fukuoka?
January is the least sunny month in Fukuoka, scoring 6/100 with about 70 mm of rain.
What is the sea temperature in Fukuoka?
The sea in Fukuoka ranges from about 13°C (January) to 30°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Fukuoka?
The typical midday UV index in Fukuoka peaks around 7 (high) in July, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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