Miyakojima weather by month & the best time to visit
Japan · beach resort · tropical monsoon climate
The best time to visit Miyakojima is February — its sunniest month (Sunshine Score 80/100), with January and December close behind. Miyakojima averages about 2,008 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 55 mm of rain in February.
When is the best time to visit Miyakojima?
For sunshine, the best time to visit Miyakojima is February, then January and December. The dullest month is May (63/100, 184 mm of rain). The full month-by-month picture is in the table below.
How sunny is Miyakojima?
Miyakojima gets a moderate 2,008 hours of sunshine a year. February (80/100) is noticeably better than May (63). It ranks #4 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. The year's 1,528 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 | 78 | 20° / 68°F | 19° / 66°F | 68 mm | 4 | 23° / 73°F |
| February | 80 | 21° / 70°F | 19° / 66°F | 55 mm | 6 | 23° / 73°F |
| March | 76 | 22° / 72°F | 20° / 68°F | 78 mm | 7 | 23° / 73°F |
| April | 68 | 23° / 73°F | 22° / 72°F | 120 mm | 8 | 26° / 79°F |
| May | 63 | 26° / 79°F | 25° / 77°F | 184 mm | 9 | 28° / 82°F |
| June | 63 | 28° / 82°F | 27° / 81°F | 221 mm | 10 | 29° / 84°F |
| July | 68 | 29° / 84°F | 28° / 82°F | 124 mm | 11 | 31° / 88°F |
| August | 63 | 29° / 84°F | 28° / 82°F | 205 mm | 10 | 31° / 88°F |
| September | 63 | 28° / 82°F | 28° / 82°F | 191 mm | 9 | 31° / 88°F |
| October | 69 | 26° / 79°F | 26° / 79°F | 117 mm | 7 | 29° / 84°F |
| November | 74 | 24° / 75°F | 23° / 73°F | 92 mm | 5 | 27° / 81°F |
| December | 77 | 22° / 72°F | 20° / 68°F | 73 mm | 4 | 23° / 73°F |
Sea temperature in Miyakojima by month
The sea off Miyakojima is warmest in July at around 31°C / 88°F, and coolest in January at 23°C / 73°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
Head-to-head
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Miyakojima: questions and answers
What kind of destination is Miyakojima?
Miyakojima is a beach resort in Japan with a tropical monsoon climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Miyakojima get a year?
Miyakojima gets about 2,008 hours of sunshine a year, at its best around February.
When is the best time to visit Miyakojima?
The sunniest time to visit Miyakojima is February, when the Sunshine Score peaks at 80/100 (with January and December close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Miyakojima?
May is the least sunny month in Miyakojima, scoring 63/100 with about 184 mm of rain.
What is the sea temperature in Miyakojima?
The sea in Miyakojima ranges from about 23°C (January) to 31°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Miyakojima?
The typical midday UV index in Miyakojima peaks around 11 (extreme) in July, easing to about 4 (moderate) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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