Okayama, Japan climate
Average temperatures, precipitation and all-time records for Okayama, Japan, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 33°C, and its coldest is January, with an average low of 2°C.
Okayama is the capital city of Okayama Prefecture in the Chūgoku region of Japan. The Okayama metropolitan area, centered around the city, has the largest urban employment zone in the Chugoku region of western Japan. The city was founded on June 1, 1889. via Wikipedia
How today compares
Latest recorded day: 2026-09-06. Each reading placed on Okayama, Japan's own ±7-day seasonal distribution.
Okayama average temperatures by month
Typical daily high and low, and average precipitation, for each month in Okayama, Japan, based on 1980–2026 records. The wettest month is June (8 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 10°C | 2°C | 3 mm |
| February | 10°C | 2°C | 3 mm |
| March | 14°C | 5°C | 3 mm |
| April | 19°C | 10°C | 5 mm |
| May | 24°C | 15°C | 5 mm |
| June | 27°C | 20°C | 8 mm |
| July | 31°C | 24°C | 8 mm |
| August | 33°C | 25°C | 5 mm |
| September | 29°C | 21°C | 5 mm |
| October | 23°C | 14°C | 3 mm |
| November | 17°C | 8°C | 3 mm |
| December | 12°C | 3°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Okayama?
Trips live and die by the weather. See how Okayama's comfort stacks up against where you live. Okayama is pre-loaded, just add your city.
Record extremes
- Hottest day on record: 39°C on 2001-08-04
- Coldest day on record: -8°C on 1981-01-26
Percentiles compare each day to Okayama, Japan's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →