Sunshine Map

Okinoshima weather by month & the best time to visit

🇯🇵 Japan · beach resort · humid subtropical climate

The best time to visit Okinoshima is August — its sunniest month (Sunshine Score 64/100), with October and June close behind. Okinoshima averages about 1,674 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 130 mm of rain in August.

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Sun hours / year
1,674
Sunniest month
August
Peak score
64/100
Rain / year
1,728 mm
Midday UV at peak
7 (high)
Sea at warmest
29°C / 84°F
Population
204k
Elevation
79 m
Okinoshima, Japan
Okinoshima — photo via Wikimedia Commons

When is the best time to visit Okinoshima?

For sunshine, the best time to visit Okinoshima is August, then October and June. The dullest month is January (0/100, 142 mm of rain). The full month-by-month picture is in the table below.

How sunny is Okinoshima?

Okinoshima isn't a sunny place by world standards: about 1,674 hours of sunshine a year. 64 Sunshine Score points separate August (64) from January (0), so the month you pick matters. It ranks #51 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,728 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

January: 0February: 0March: 16April: 33May: 54June: 61July: 61August: 6464September: 61October: 64November: 45December: 15JFMAMJJASOND
MonthScoreDay highNight lowRainUVSea
January0 8° / 46°F6° / 43°F 142 mm115° / 59°F
February0 8° / 46°F6° / 43°F 111 mm214° / 57°F
March16 11° / 52°F8° / 46°F 122 mm413° / 55°F
April33 14° / 57°F11° / 52°F 117 mm515° / 59°F
May54 18° / 64°F15° / 59°F 130 mm618° / 64°F
June61 21° / 70°F19° / 66°F 159 mm622° / 72°F
July61 25° / 77°F23° / 73°F 205 mm724° / 75°F
August64 27° / 81°F25° / 77°F 130 mm729° / 84°F
September61 24° / 75°F23° / 73°F 206 mm628° / 82°F
October64 20° / 68°F18° / 64°F 131 mm424° / 75°F
November45 16° / 61°F13° / 55°F 114 mm220° / 68°F
December15 11° / 52°F8° / 46°F 161 mm117° / 63°F

Sea temperature in Okinoshima by month

The sea off Okinoshima is warmest in August at around 29°C / 84°F, and coolest in March at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.

See Okinoshima on the interactive sunshine globe →

Nearby places for sunshine

Nearest destinations

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