Aguni weather by month & the best time to visit
Japan · coastal city break · tropical monsoon climate
The best time to visit Aguni is February — its sunniest month (Sunshine Score 78/100), with December and November close behind. Aguni averages about 1,823 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 59 mm of rain in February.
When is the best time to visit Aguni?
For sunshine, the best time to visit Aguni is February, then December and November. The dullest month is May (62/100, 220 mm of rain). The full month-by-month picture is in the table below.
How sunny is Aguni?
Aguni gets a moderate 1,823 hours of sunshine a year. February (78/100) is noticeably better than May (62). It ranks #32 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. The year's 1,690 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 | 70 | 19° / 66°F | 17° / 63°F | 69 mm | 4 | 23° / 73°F |
| February | 78 | 20° / 68°F | 18° / 64°F | 59 mm | 5 | 23° / 73°F |
| March | 72 | 20° / 68°F | 18° / 64°F | 94 mm | 6 | 23° / 73°F |
| April | 64 | 22° / 72°F | 21° / 70°F | 140 mm | 7 | 24° / 75°F |
| May | 62 | 25° / 77°F | 23° / 73°F | 220 mm | 8 | 25° / 77°F |
| June | 62 | 27° / 81°F | 26° / 79°F | 311 mm | 9 | 27° / 81°F |
| July | 63 | 29° / 84°F | 28° / 82°F | 141 mm | 10 | 31° / 88°F |
| August | 62 | 30° / 86°F | 28° / 82°F | 179 mm | 10 | 31° / 88°F |
| September | 62 | 29° / 84°F | 27° / 81°F | 191 mm | 9 | 30° / 86°F |
| October | 66 | 26° / 79°F | 25° / 77°F | 127 mm | 7 | 28° / 82°F |
| November | 73 | 24° / 75°F | 22° / 72°F | 87 mm | 5 | 26° / 79°F |
| December | 76 | 21° / 70°F | 19° / 66°F | 72 mm | 4 | 24° / 75°F |
Sea temperature in Aguni by month
The sea off Aguni 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
Aguni: questions and answers
What kind of destination is Aguni?
Aguni is a coastal city break 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 Aguni get a year?
Aguni gets about 1,823 hours of sunshine a year, at its best around February.
When is the best time to visit Aguni?
The sunniest time to visit Aguni is February, when the Sunshine Score peaks at 78/100 (with December and November close behind). Expect daytime highs around 20°C / 68°F.
What is the least sunny month in Aguni?
May is the least sunny month in Aguni, scoring 62/100 with about 220 mm of rain.
What is the sea temperature in Aguni?
The sea in Aguni 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 Aguni?
The typical midday UV index in Aguni peaks around 10 (very high) 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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