Ōita climate
Ōita (Japan) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 18 °C64 °F, and about 2,027 mm80 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Ōita climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1151 | 541 | 846 | 632.5 | 1 |
| Feb | 1254 | 642 | 948 | 903.5 | 1 |
| Mar | 1559 | 846 | 1152 | 1174.6 | 0 |
| Apr | 1967 | 1253 | 1660 | 1455.7 | 0 |
| May | 2374 | 1661 | 2067 | 1867.3 | 0 |
| Jun | 2679 | 2068 | 2373 | 35214 | 0 |
| Jul | 2985 | 2475 | 2780 | 29812 | 0 |
| Aug | 3086 | 2577 | 2882 | 1987.8 | 0 |
| Sep | 2781 | 2272 | 2577 | 25510 | 0 |
| Oct | 2373 | 1763 | 2068 | 1546.1 | 0 |
| Nov | 1864 | 1254 | 1559 | 933.7 | 0 |
| Dec | 1355 | 745 | 1050 | 742.9 | 0 |
| Year | 3086 | 541 | 1864 | 2,02780 | 1 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 69% | 2.3 | 10:11 |
| Feb | 77% | 67% | 3.0 | 10:57 |
| Mar | 75% | 65% | 4.1 | 11:53 |
| Apr | 76% | 64% | 4.9 | 12:58 |
| May | 79% | 68% | 5.2 | 13:52 |
| Jun | 85% | 81% | 4.5 | 14:20 |
| Jul | 86% | 73% | 4.8 | 14:09 |
| Aug | 84% | 63% | 5.1 | 13:22 |
| Sep | 83% | 68% | 4.1 | 12:20 |
| Oct | 79% | 59% | 3.5 | 11:17 |
| Nov | 78% | 60% | 2.7 | 10:23 |
| Dec | 78% | 66% | 2.1 | 9:58 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Ōita is like
The warmest month is August, with an average high of 30 °C86 °F and a low of 25 °C77 °F. The coldest is January, when highs average 11 °C51 °F and lows 5 °C41 °F. Seasons are strongly marked: the warmest month is on average 19.8 °C35.7 °F warmer than the coldest.
It is very wet, receiving about 2,027 mm80 in of precipitation per year. The wettest three-month stretch is June–August, which brings 42% of the annual total. The wettest month is June (352 mm14 in), the driest is January (63 mm2.5 in).
Relative humidity ranges from 75% in March to 86% in July. The clearest skies (lowest average cloud amount, 59%) are typical of October. Average wind speed near the ground ranges from 4 km/h (3 mph) in July to 9 km/h (6 mph) in January. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Ōita
Based on these averages, the most comfortable months for sightseeing and outdoor activities are October and November: average highs of 18 °C64 °F to 23 °C73 °F with 93 mm3.7 in to 154 mm6.1 in of precipitation per month.
The most challenging month is June, which is very wet (352 mm14 in) and humid (85% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Ōita
- Winter (December–February) — highs 1151 to 13 °C55 °F, lows 541 to 7 °C45 °F, about 76 mm3.0 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Spring (March–May) — highs 1559 to 23 °C74 °F, lows 846 to 16 °C61 °F, about 149 mm5.9 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2679 to 30 °C86 °F, lows 2068 to 25 °C77 °F, about 283 mm11 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 1864 to 27 °C81 °F, lows 1254 to 22 °C72 °F, about 168 mm6.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Ōita compares
Compared with Kumamoto, about 97 km to the southwest, Ōita is on average 0.8 °C1.4 °F warmer and receives a similar amount of precipitation. The difference is largest in December (2.1 °C3.8 °F warmer).
Of the 111 places in Japan covered by World Climates, Ōita is the 11th warmest by annual mean temperature and the 18th wettest by annual precipitation. See all of them on the Japan climate page.
Places in other countries with the most similar temperature and rainfall pattern: Zhoushan (China, Cfa), Taizhou (China, Cfa) and Jeju City (South Korea, Cfa).
Nearby places
- Beppu 11 km · 17 °C63 °F · 1,939 mm76 in
- Nobeoka 73 km · 19 °C66 °F · 2,344 mm92 in
- Ube 85 km · 16 °C61 °F · 1,821 mm72 in
- Shunan 96 km · 15 °C58 °F · 1,696 mm67 in
- Kumamoto 97 km · 17 °C62 °F · 2,130 mm84 in
- Kitakyushu 98 km · 17 °C62 °F · 1,860 mm73 in
- Yamaguchi 106 km · 15 °C60 °F · 1,821 mm72 in
- Ōmuta 109 km · 17 °C62 °F · 2,130 mm84 in
Frequently asked questions
What is the warmest month in Ōita?
August is the warmest month in Ōita, with an average high of 30 °C (86 °F) and an average low of 25 °C (77 °F).
What is the coldest month in Ōita?
January is the coldest month, with an average high of 11 °C (51 °F) and an average low of 5 °C (41 °F).
When does it rain the most in Ōita?
June is the wettest month with about 352 mm (13.9 in) of precipitation; January is the driest with about 63 mm (2.5 in).
What is the best time to visit Ōita?
Judging by long-term averages, the most comfortable months are October and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 135 m, while Ōita lies at about 9 m. Temperatures on this page were therefore adjusted by +0.8 °C1.5 °F using the standard lapse rate of 6.5 °C per 1,000 m.