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.
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- Sun hours / year
- 2,008
- Sunniest month
- February
- Peak score
- 80/100
- Rain / year
- 1,528 mm
- Midday UV at peak
- 11 (extreme)
- Sea at warmest
- 31°C / 88°F
- Population
- 55k
- Elevation
- 8 m

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 #5 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 | 21° / 70°F | 19° / 66°F | 68 mm | 4 | 24° / 75°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 | 24° / 75°F | 22° / 72°F | 120 mm | 7 | 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 | 28° / 82°F |
| July | 68 | 29° / 84°F | 29° / 84°F | 124 mm | 11 | 31° / 88°F |
| August | 63 | 29° / 84°F | 29° / 84°F | 205 mm | 10 | 31° / 88°F |
| September | 63 | 29° / 84°F | 28° / 82°F | 191 mm | 9 | 30° / 86°F |
| October | 69 | 27° / 81°F | 26° / 79°F | 117 mm | 7 | 29° / 84°F |
| November | 74 | 25° / 77°F | 24° / 75°F | 92 mm | 5 | 27° / 81°F |
| December | 77 | 22° / 72°F | 20° / 68°F | 73 mm | 4 | 25° / 77°F |
Sea temperature in Miyakojima by month
The sea off Miyakojima is warmest in July at around 31°C / 88°F, and coolest in February 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.
See Miyakojima on the interactive sunshine globe →
Nearby places for sunshine
- Miyakojima Japan · 16 km · best in Feb · 2,008 h sun/yr
- Ishigaki Japan · 103 km · best in Feb · 1,858 h sun/yr
- Naha Japan · 293 km · best in Feb · 1,823 h sun/yr
- Taoyuan Taiwan · 395 km · best in Dec · 1,334 h sun/yr
- Taichung (Qingshui) Taiwan · 462 km · best in Feb · 1,740 h sun/yr
- Taitung Taiwan · 471 km · best in Feb · 1,763 h sun/yr
Nearest destinations
- Tarama Japan · 51 km · 1,859 h sun/yr · best in Feb
- Yonaguni Japan · 222 km · 1,466 h sun/yr · best in Feb
- Kumejima Japan · 232 km · 1,729 h sun/yr · best in Feb
- Aguni Japan · 287 km · 1,823 h sun/yr · best in Feb
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