Kagoshima weather by month & the best time to visit
Japan · coastal city break · humid subtropical climate
The best time to visit Kagoshima is October — its sunniest month (Sunshine Score 63/100), with May and June close behind. Kagoshima averages about 1,843 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 142 mm of rain in October.
When is the best time to visit Kagoshima?
For sunshine, the best time to visit Kagoshima is October, then May and June. The dullest month is January (6/100, 78 mm of rain). The full month-by-month picture is in the table below.
How sunny is Kagoshima?
Kagoshima gets a moderate 1,843 hours of sunshine a year. 57 Sunshine Score points separate October (63) from January (6), so the month you pick matters. It ranks #24 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 45% of the annual 2,515 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 6 | 9° / 48°F | 2° / 36°F | 78 mm | 3 | 19° / 66°F |
| February | 23 | 12° / 54°F | 3° / 37°F | 118 mm | 4 | 19° / 66°F |
| March | 36 | 15° / 59°F | 5° / 41°F | 149 mm | 5 | 18° / 64°F |
| April | 57 | 19° / 66°F | 10° / 50°F | 174 mm | 6 | 20° / 68°F |
| May | 62 | 23° / 73°F | 14° / 57°F | 223 mm | 7 | 22° / 72°F |
| June | 62 | 26° / 79°F | 19° / 66°F | 512 mm | 6 | 25° / 77°F |
| July | 62 | 29° / 84°F | 23° / 73°F | 398 mm | 8 | 29° / 84°F |
| August | 62 | 30° / 86°F | 23° / 73°F | 228 mm | 9 | 31° / 88°F |
| September | 62 | 27° / 81°F | 20° / 68°F | 280 mm | 7 | 29° / 84°F |
| October | 63 | 23° / 73°F | 14° / 57°F | 142 mm | 6 | 26° / 79°F |
| November | 51 | 17° / 63°F | 9° / 48°F | 117 mm | 4 | 24° / 75°F |
| December | 18 | 11° / 52°F | 4° / 39°F | 96 mm | 3 | 20° / 68°F |
Sea temperature in Kagoshima by month
The sea off Kagoshima is warmest in August at around 31°C / 88°F, and coolest in March at 18°C / 64°F. The water sits at a comfortable 21°C or warmer roughly 7 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Kagoshima compares month by month: Kagoshima vs Kumamoto · Kagoshima vs Nagasaki · Kagoshima vs Miyazaki · Kagoshima vs Amami · all comparisons
Kagoshima: questions and answers
What kind of destination is Kagoshima?
Kagoshima is a coastal city break in Japan with a humid subtropical climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) about 7 months a year.
How many hours of sunshine does Kagoshima get a year?
Kagoshima gets about 1,843 hours of sunshine a year, at its best around October.
When is the best time to visit Kagoshima?
The sunniest time to visit Kagoshima is October, when the Sunshine Score peaks at 63/100 (with May and June close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Kagoshima?
January is the least sunny month in Kagoshima, scoring 6/100 with about 78 mm of rain.
What is the sea temperature in Kagoshima?
The sea in Kagoshima ranges from about 18°C (March) to 31°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Kagoshima?
The typical midday UV index in Kagoshima peaks around 9 (very high) in August, easing to about 3 (moderate) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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