Miyakejima weather by month & the best time to visit
Japan · beach resort · humid subtropical climate
The best time to visit Miyakejima is November — its sunniest month (Sunshine Score 65/100), with May and June close behind. Miyakejima averages about 1,871 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 136 mm of rain in November.
When is the best time to visit Miyakejima?
For sunshine, the best time to visit Miyakejima is November, then May and June. The dullest month is January (31/100, 86 mm of rain). The full month-by-month picture is in the table below.
How sunny is Miyakejima?
Miyakejima gets a moderate 1,871 hours of sunshine a year. November (65/100) is noticeably better than January (31). It ranks #17 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. The year's 2,087 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 31 | 13° / 55°F | 11° / 52°F | 86 mm | 2 | 22° / 72°F |
| February | 35 | 14° / 57°F | 11° / 52°F | 105 mm | 3 | 20° / 68°F |
| March | 36 | 15° / 59°F | 13° / 55°F | 164 mm | 4 | 20° / 68°F |
| April | 52 | 18° / 64°F | 16° / 61°F | 176 mm | 5 | 21° / 70°F |
| May | 62 | 21° / 70°F | 19° / 66°F | 199 mm | 6 | 24° / 75°F |
| June | 62 | 23° / 73°F | 22° / 72°F | 263 mm | 6 | 25° / 77°F |
| July | 62 | 26° / 79°F | 25° / 77°F | 217 mm | 7 | 29° / 84°F |
| August | 62 | 27° / 81°F | 27° / 81°F | 160 mm | 8 | 31° / 88°F |
| September | 62 | 26° / 79°F | 25° / 77°F | 230 mm | 6 | 29° / 84°F |
| October | 62 | 23° / 73°F | 22° / 72°F | 253 mm | 4 | 28° / 82°F |
| November | 65 | 20° / 68°F | 18° / 64°F | 136 mm | 3 | 26° / 79°F |
| December | 48 | 16° / 61°F | 14° / 57°F | 98 mm | 2 | 23° / 73°F |
Sea temperature in Miyakejima by month
The sea off Miyakejima is warmest in August at around 31°C / 88°F, and coolest in February at 20°C / 68°F. The water sits at a comfortable 21°C or warmer roughly 10 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Miyakejima: questions and answers
What kind of destination is Miyakejima?
Miyakejima is a beach resort in Japan with a humid subtropical climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) about 10 months a year.
How many hours of sunshine does Miyakejima get a year?
Miyakejima gets about 1,871 hours of sunshine a year, at its best around November.
When is the best time to visit Miyakejima?
The sunniest time to visit Miyakejima is November, when the Sunshine Score peaks at 65/100 (with May and June close behind). Expect daytime highs around 20°C / 68°F.
What is the least sunny month in Miyakejima?
January is the least sunny month in Miyakejima, scoring 31/100 with about 86 mm of rain.
What is the sea temperature in Miyakejima?
The sea in Miyakejima ranges from about 20°C (February) to 31°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Miyakejima?
The typical midday UV index in Miyakejima peaks around 8 (very high) in August, 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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