Ōita has a warm temperate climate with warm summers and mild winters.
Ōita has an average annual temperature of 15.8°C across all 15 cities, with approximately 1837 mm of annual precipitation and average humidity of 80%. Temperatures peak in August and drop to their lowest in January, while rainfall is highest during summer months.
The warmest city is Tsukumiura with average July highs of 29.1°C, while Taketa is the coldest with average January lows of -2.7°C. Humidity remains high throughout the year creating warm and humid conditions. These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
| Month | 🌤️ | Avg High | Avg Temp | Avg Low | Record High | Record Low | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|---|---|
| January | 🌤️ | 8.4°C | 5.6°C | 2.7°C | 21.0°C | -10.7°C | 78% | 58 | 3.6 | 2.50 |
| February | 🌤️ | 9.5°C | 6.3°C | 3.1°C | 21.3°C | -10.8°C | 77% | 80 | 3.5 | 3.20 |
| March | ⛅ | 13.0°C | 9.4°C | 5.7°C | 23.1°C | -7.9°C | 77% | 127 | 3.2 | 4.00 |
| April | ⛅ | 17.7°C | 13.8°C | 9.9°C | 27.0°C | -4.1°C | 77% | 143 | 2.8 | 4.90 |
| May | 🌧️ | 21.7°C | 18.0°C | 14.3°C | 30.2°C | 2.5°C | 79% | 175 | 2.4 | 5.20 |
| June | 🌧️ | 24.9°C | 21.8°C | 18.7°C | 32.9°C | 8.3°C | 83% | 319 | 2.2 | 4.50 |
| July | 🌧️ | 28.5°C | 25.6°C | 22.7°C | 34.4°C | 13.1°C | 85% | 288 | 2.2 | 5.00 |
| August | 🌧️ | 29.3°C | 26.5°C | 23.7°C | 37.8°C | 13.0°C | 83% | 202 | 2.4 | 5.10 |
| September | 🌧️ | 26.2°C | 23.5°C | 20.8°C | 33.3°C | 4.8°C | 82% | 205 | 2.5 | 4.10 |
| October | ⛅ | 21.2°C | 18.3°C | 15.4°C | 29.8°C | -2.2°C | 79% | 108 | 2.8 | 3.60 |
| November | 🌤️ | 16.2°C | 13.2°C | 10.2°C | 26.4°C | -5.2°C | 78% | 78 | 3.0 | 2.70 |
| December | 🌤️ | 10.9°C | 7.9°C | 4.9°C | 22.6°C | -9.4°C | 78% | 55 | 3.4 | 2.30 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 15 cities in Ōita
🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.
🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.
☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 15 cities · 1981–2025 · °C
Temperatures rise steadily from spring, peak in August, and gradually decline through autumn into winter.
These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
Region-wide monthly rainfall · 1981–2025 · mm/month
💧 Humidity peaks at 85% in July · annual avg 80%
Monthly averages · 1981–2025
Across 45 years, Ōita's temperature shows a slight warming trend over the past decade. 2024 was the warmest year overall and 1984 the coolest.
The warmest year on record was 2024 (avg: 17.1°C), while the coldest year was 1984 (avg: 14.8°C).
Averaged across all 15 cities in Ōita · Last 30 years · °C
Averaged across all 15 cities in Ōita · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 15 cities in Ōita for each year.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|---|---|
2025 | 19.6°C | 16.5°C | 13.4°C | 37.8°C | -7.9°C | 2124 | 81% | 2.8 m/s |
2024 🔥 | 20.1°C | 17.1°C | 14.1°C | 34.5°C | -6.3°C | 2442 | 82% | 2.7 m/s |
2023 | 19.7°C | 16.6°C | 13.4°C | 32.0°C | -9.1°C | 2316 | 80% | 2.6 m/s |
2022 | 19.3°C | 16.2°C | 13.1°C | 33.2°C | -7.0°C | 1771 | 79% | 2.6 m/s |
2021 | 19.4°C | 16.3°C | 13.2°C | 32.0°C | -8.8°C | 2273 | 80% | 2.8 m/s |
2020 | 19.3°C | 16.2°C | 13.0°C | 34.9°C | -5.6°C | 2283 | 80% | 2.8 m/s |
2019 | 19.5°C | 16.4°C | 13.3°C | 32.8°C | -4.3°C | 2072 | 80% | 2.7 m/s |
2018 | 19.1°C | 16.0°C | 12.8°C | 33.7°C | -8.3°C | 2067 | 80% | 2.7 m/s |
2017 | 18.8°C | 15.7°C | 12.6°C | 33.9°C | -7.4°C | 1936 | 79% | 2.8 m/s |
2016 🌧️ | 19.5°C | 16.5°C | 13.5°C | 33.8°C | -8.7°C | 2548 | 82% | 2.6 m/s |
Showing 1 to 10 of 45 years
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.
