Oita weather by month & the best time to visit
Japan · coastal city break · humid subtropical climate
The best time to visit Oita is October — its sunniest month (Sunshine Score 65/100), with May and June close behind. Oita averages about 1,801 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 129 mm of rain in October.
When is the best time to visit Oita?
For sunshine, the best time to visit Oita is October, then May and June. The dullest month is January (13/100, 60 mm of rain). The full month-by-month picture is in the table below.
How sunny is Oita?
Oita gets a moderate 1,801 hours of sunshine a year. 52 Sunshine Score points separate October (65) from January (13), so the month you pick matters. It ranks #37 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 42% of the annual 1,780 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 13 | 10° / 50°F | 7° / 45°F | 60 mm | 2 | 14° / 57°F |
| February | 19 | 11° / 52°F | 7° / 45°F | 82 mm | 3 | 13° / 55°F |
| March | 35 | 14° / 57°F | 9° / 48°F | 109 mm | 4 | 13° / 55°F |
| April | 54 | 18° / 64°F | 13° / 55°F | 130 mm | 5 | 15° / 59°F |
| May | 62 | 21° / 70°F | 16° / 61°F | 157 mm | 6 | 18° / 64°F |
| June | 62 | 24° / 75°F | 20° / 68°F | 292 mm | 6 | 22° / 72°F |
| July | 62 | 28° / 82°F | 24° / 75°F | 293 mm | 7 | 27° / 81°F |
| August | 62 | 29° / 84°F | 26° / 79°F | 169 mm | 8 | 30° / 86°F |
| September | 62 | 27° / 81°F | 23° / 73°F | 208 mm | 6 | 28° / 82°F |
| October | 65 | 22° / 72°F | 19° / 66°F | 129 mm | 5 | 24° / 75°F |
| November | 62 | 18° / 64°F | 14° / 57°F | 80 mm | 3 | 22° / 72°F |
| December | 32 | 13° / 55°F | 9° / 48°F | 71 mm | 2 | 18° / 64°F |
Sea temperature in Oita by month
The sea off Oita is warmest in August at around 30°C / 86°F, and coolest in February at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Head-to-head
How Oita compares month by month: Oita vs Kitakyushu · Oita vs Ube · Oita vs Iwakuni · all comparisons
Oita: questions and answers
What kind of destination is Oita?
Oita is a coastal city break in Japan with a humid subtropical climate — the sea reaches 30°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Oita get a year?
Oita gets about 1,801 hours of sunshine a year, at its best around October.
When is the best time to visit Oita?
The sunniest time to visit Oita is October, when the Sunshine Score peaks at 65/100 (with May and June close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Oita?
January is the least sunny month in Oita, scoring 13/100 with about 60 mm of rain.
What is the sea temperature in Oita?
The sea in Oita ranges from about 13°C (February) to 30°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Oita?
The typical midday UV index in Oita 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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