Climate averages 1991–2020
Tsuyama weather
in September.
A warm, very wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Tsuyama: daytime highs average 26.5°C and nights cool to about 19.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 181 mm of rain on roughly 12 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Okayama (45 km away). In September its highs average 27.2°C, 0.7°C warmer than Tsuyama, with 167 mm of rain.
Among the 303 cities listed in Japan, Tsuyama ranks joint 101st of 303 for the warmest September highs and joint 130th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Tsuyama is 0.9°C warmer than that mean.
From September to October, average highs fall by 5.4°C to 21.2°C, and monthly rainfall falls from 181 mm to 113 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Tsuyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.4°C-0.4°C | -0.4°C | 45 | 6.1 | 10.110 h |
| February | 8.4°C-0.1°C | -0.1°C | 57 | 7.6 | 10.911 h |
| March | 12.6°C2.6°C | 2.6°C | 109 | 10.9 | 11.912 h |
| April | 18.3°C7.6°C | 7.6°C | 120 | 10.5 | 13.013 h |
| May | 22.9°C12.8°C | 12.8°C | 144 | 10.9 | 14.014 h |
| June | 26.2°C17.7°C | 17.7°C | 188 | 13.1 | 14.514 h |
| July | 29.7°C22.3°C | 22.3°C | 229 | 16.1 | 14.314 h |
| August | 30.7°C23.2°C | 23.2°C | 140 | 13.4 | 13.513 h |
| September, selected | 26.5°C19.0°C | 19.0°C | 181 | 11.6 | 12.412 h |
| October | 21.2°C12.6°C | 12.6°C | 113 | 7.7 | 11.311 h |
| November | 15.5°C6.8°C | 6.8°C | 61 | 6.1 | 10.410 h |
| December | 9.9°C1.9°C | 1.9°C | 52 | 6.3 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Okayama in SeptemberJapan · 45 kmHigh 27.2°C · Low 20.2°C · 167 mm rain
- Tottori-shi in SeptemberJapan · 54 kmHigh 25.1°C · Low 20.4°C · 223 mm rain
- Tatsuno in SeptemberJapan · 55 kmHigh 25.9°C · Low 20.8°C · 195 mm rain
- Kurashiki in SeptemberJapan · 56 kmHigh 27.1°C · Low 20.9°C · 153 mm rain
- Himeji in SeptemberJapan · 69 kmHigh 26.0°C · Low 20.6°C · 202 mm rain
- Yonago in SeptemberJapan · 74 kmHigh 25.0°C · Low 20.3°C · 188 mm rain
- Takamatsu in SeptemberJapan · 80 kmHigh 26.0°C · Low 21.3°C · 184 mm rain
- Kakogawachō-honmachi in SeptemberJapan · 82 kmHigh 26.1°C · Low 20.8°C · 202 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Tsuyama) is explained once on the Tsuyama year overview and on the Sources, method and limits page.