Ōita climate
Ōita is warmest in August, with average highs of 30 °C, and coldest in January, when nights average 3.1 °C. June is the wettest month (287 mm) and December the driest (55 mm). Figures are 1991–2020 climate normals.
Across a full year Ōita averages 1,656 mm of rain, 110 days above 25 °C and 4 days below freezing.
Japan · population 477,715 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month August 30 °C
- Coldest month January 3.1 °C
- Driest month December 55 mm
- Wettest month June 287 mm
- Least cloud December 51 % cloud
- Hottest on record August 36 °C
- Coldest on record January -4.1 °C
What to expectŌita through the year
Ōita has a clear annual cycle: average daily highs run from 9.3 °C in January to 30 °C in August, a swing of 21 °C in mean temperature across the year.
Counted across a normal year, 110 days a year reach 25 °C, 37 of them reach 30 °C, 4 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in August.
Rain is strongly seasonal. June averages 287 mm against 55 mm in December — 5.2 times as much. Planning around the dry months matters more here than planning around temperature.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 9.3 °C | 58 mm | 55 % |
| February | 10.5 °C | 70 mm | 57 % |
| March | 13.9 °C | 102 mm | 60 % |
| April | 18.8 °C | 118 mm | 61 % |
| May | 23.0 °C | 131 mm | 67 % |
| June | 25.7 °C | 287 mm | 81 % |
| July | 29.5 °C | 223 mm | 72 % |
| August | 30.2 °C | 192 mm | 63 % |
| September | 26.6 °C | 216 mm | 64 % |
| October | 21.8 °C | 133 mm | 53 % |
| November | 16.7 °C | 73 mm | 53 % |
| December | 11.5 °C | 55 mm | 51 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 9.3 °C | 3.1 °C | 5.8 °C | 20.8 °C | -4.1 °C | 0 | 0 | 2 |
| February | 10.5 °C | 3.5 °C | 6.6 °C | 21.6 °C | -3.5 °C | 0 | 0 | 2 |
| March | 13.9 °C | 5.9 °C | 9.6 °C | 26.4 °C | -0.6 °C | 0 | 0 | 0 |
| April | 18.8 °C | 10.2 °C | 14.2 °C | 28.5 °C | 2.0 °C | 1 | 0 | 0 |
| May | 23.0 °C | 15.0 °C | 18.8 °C | 30.4 °C | 7.6 °C | 7 | 0 | 0 |
| June | 25.7 °C | 19.5 °C | 22.4 °C | 33.0 °C | 13.2 °C | 18 | 2 | 0 |
| July | 29.5 °C | 23.5 °C | 26.3 °C | 35.4 °C | 18.2 °C | 29 | 15 | 0 |
| August | 30.2 °C | 24.1 °C | 26.9 °C | 36.2 °C | 19.1 °C | 31 | 17 | 0 |
| September | 26.6 °C | 20.9 °C | 23.5 °C | 34.7 °C | 13.1 °C | 21 | 3 | 0 |
| October | 21.8 °C | 15.5 °C | 18.3 °C | 30.4 °C | 6.6 °C | 4 | 0 | 0 |
| November | 16.7 °C | 10.2 °C | 13.1 °C | 26.0 °C | 1.7 °C | 0 | 0 | 0 |
| December | 11.5 °C | 5.1 °C | 7.9 °C | 24.2 °C | -2.3 °C | 0 | 0 | 0 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 58 mm | 7 | 10 h/day | 55 % | 73 % | 15 km/h |
| February | 70 mm | 8 | 11 h/day | 57 % | 72 % | 15 km/h |
| March | 102 mm | 11 | 12 h/day | 60 % | 74 % | 15 km/h |
| April | 118 mm | 10 | 13 h/day | 61 % | 75 % | 14 km/h |
| May | 131 mm | 10 | 14 h/day | 67 % | 78 % | 13 km/h |
| June | 287 mm | 17 | 14 h/day | 81 % | 84 % | 11 km/h |
| July | 223 mm | 17 | 14 h/day | 72 % | 84 % | 11 km/h |
| August | 192 mm | 16 | 13 h/day | 63 % | 83 % | 12 km/h |
| September | 216 mm | 14 | 12 h/day | 64 % | 83 % | 12 km/h |
| October | 133 mm | 8 | 11 h/day | 53 % | 79 % | 12 km/h |
| November | 73 mm | 7 | 10 h/day | 53 % | 77 % | 13 km/h |
| December | 55 mm | 6 | 10.0 h/day | 51 % | 74 % | 15 km/h |
Planning a trip? See the best time to visit Ōita.
QuestionsCommon questions about Ōita’s climate
When is the best time to visit Ōita?
That depends on what you want, so the honest answer is a comparison rather than a single month. May, June, October sit closest to 20 °C on average, August is the warmest month and December the driest. The month-by-month table above has the full picture.
How hot does Ōita get?
In August, the warmest month, daily highs average 30 °C. About 37 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.
How cold does it get in winter?
Nights average 3.1 °C in January, the coldest month. A normal year has 4 nights below freezing.
Which month is wettest in Ōita?
June, averaging 287 mm over 17 days with rain. The driest month is December with 55 mm. The year as a whole averages 1,656 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Ōita rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.