Tanegashima weather by month & the best time to visit
Japan · beach resort · humid subtropical climate
The best time to visit Tanegashima is May — its sunniest month (Sunshine Score 61/100), with June and July close behind. Tanegashima averages about 1,648 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 274 mm of rain in May.
When is the best time to visit Tanegashima?
For sunshine, the best time to visit Tanegashima is May, then June and July. The dullest month is January (32/100, 134 mm of rain). The full month-by-month picture is in the table below.
How sunny is Tanegashima?
Tanegashima isn't a sunny place by world standards: about 1,648 hours of sunshine a year. May (61/100) is noticeably better than January (32). It ranks #55 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 June, carries about 41% of the annual 2,952 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 32 | 14° / 57°F | 12° / 54°F | 134 mm | 3 | 22° / 72°F |
| February | 35 | 15° / 59°F | 12° / 54°F | 158 mm | 4 | 21° / 70°F |
| March | 45 | 17° / 63°F | 14° / 57°F | 194 mm | 5 | 21° / 70°F |
| April | 56 | 19° / 66°F | 17° / 63°F | 219 mm | 6 | 22° / 72°F |
| May | 61 | 22° / 72°F | 20° / 68°F | 274 mm | 7 | 24° / 75°F |
| June | 61 | 24° / 75°F | 23° / 73°F | 587 mm | 6 | 27° / 81°F |
| July | 61 | 27° / 81°F | 26° / 79°F | 348 mm | 9 | 29° / 84°F |
| August | 61 | 28° / 82°F | 27° / 81°F | 215 mm | 9 | 31° / 88°F |
| September | 61 | 26° / 79°F | 25° / 77°F | 308 mm | 7 | 29° / 84°F |
| October | 61 | 24° / 75°F | 22° / 72°F | 198 mm | 6 | 28° / 82°F |
| November | 61 | 20° / 68°F | 18° / 64°F | 168 mm | 4 | 26° / 79°F |
| December | 46 | 17° / 63°F | 14° / 57°F | 149 mm | 3 | 22° / 72°F |
Sea temperature in Tanegashima by month
The sea off Tanegashima is warmest in August at around 31°C / 88°F, and coolest in February at 21°C / 70°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Tanegashima: questions and answers
What kind of destination is Tanegashima?
Tanegashima is a beach resort in Japan with a humid subtropical climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Tanegashima get a year?
Tanegashima gets about 1,648 hours of sunshine a year, at its best around May.
When is the best time to visit Tanegashima?
The sunniest time to visit Tanegashima is May, when the Sunshine Score peaks at 61/100 (with June and July close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Tanegashima?
January is the least sunny month in Tanegashima, scoring 32/100 with about 134 mm of rain.
What is the sea temperature in Tanegashima?
The sea in Tanegashima ranges from about 21°C (February) to 31°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Tanegashima?
The typical midday UV index in Tanegashima peaks around 9 (very high) in July, 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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