Climate averages 1991–2020
Yonago 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 Yonago: daytime highs average 25.0°C and nights cool to about 20.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 188 mm of rain on roughly 13 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 Matsue (26 km away). In September its highs average 24.7°C, about as warm as Yonago, with 184 mm of rain.
Among the 303 cities listed in Japan, Yonago ranks joint 222nd of 303 for the warmest September highs and joint 158th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Yonago is 0.7°C cooler than that mean.
From September to October, average highs fall by 4.9°C to 20.1°C, and monthly rainfall falls from 188 mm to 117 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
Yonago climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C2.5°C | 2.5°C | 193 | 23.2 | 10.110 h |
| February | 7.9°C2.4°C | 2.4°C | 142 | 18.1 | 10.911 h |
| March | 11.3°C4.8°C | 4.8°C | 138 | 15.2 | 11.912 h |
| April | 16.2°C9.1°C | 9.1°C | 110 | 11.2 | 13.113 h |
| May | 20.5°C13.8°C | 13.8°C | 121 | 10.4 | 14.014 h |
| June | 23.9°C18.2°C | 18.2°C | 142 | 11.7 | 14.515 h |
| July | 27.5°C22.9°C | 22.9°C | 178 | 13.1 | 14.314 h |
| August | 28.9°C24.0°C | 24.0°C | 116 | 11.3 | 13.513 h |
| September, selected | 25.0°C20.3°C | 20.3°C | 188 | 13.3 | 12.412 h |
| October | 20.1°C14.9°C | 14.9°C | 117 | 11.3 | 11.311 h |
| November | 15.2°C9.8°C | 9.8°C | 125 | 15.2 | 10.310 h |
| December | 9.9°C5.0°C | 5.0°C | 198 | 21.1 | 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
- Matsue in SeptemberJapan · 26 kmHigh 24.7°C · Low 21.5°C · 184 mm rain
- Izumo in SeptemberJapan · 52 kmHigh 25.0°C · Low 20.9°C · 190 mm rain
- Tsuyama in SeptemberJapan · 74 kmHigh 26.5°C · Low 19.0°C · 181 mm rain
- Tottori-shi in SeptemberJapan · 82 kmHigh 25.1°C · Low 20.4°C · 223 mm rain
- Kurashiki in SeptemberJapan · 102 kmHigh 27.1°C · Low 20.9°C · 153 mm rain
- Okayama in SeptemberJapan · 103 kmHigh 27.2°C · Low 20.2°C · 167 mm rain
- Fukuyama in SeptemberJapan · 106 kmHigh 27.3°C · Low 20.6°C · 145 mm rain
- Onomichi in SeptemberJapan · 114 kmHigh 26.9°C · Low 20.3°C · 145 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 Yonago) is explained once on the Yonago year overview and on the Sources, method and limits page.