Climate averages 1991–2020
Miyakonojō 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 Miyakonojō: daytime highs average 27.6°C and nights cool to about 21.6°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 233 mm of rain on roughly 16 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.
The nearest other city in this atlas is Kirishima (29 km away). In September its highs average 28.7°C, 1.1°C warmer than Miyakonojō, with 202 mm of rain.
Among the 303 cities listed in Japan, Miyakonojō ranks joint 14th of 303 for the warmest September highs and 260th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Miyakonojō is 1.9°C warmer than that mean.
From September to October, average highs fall by 4.3°C to 23.2°C, and monthly rainfall falls from 233 mm to 137 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
Miyakonojō climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.0°C2.9°C | 2.9°C | 81 | 7.7 | 10.310 h |
| February | 12.5°C3.8°C | 3.8°C | 102 | 8.7 | 11.011 h |
| March | 15.7°C6.9°C | 6.9°C | 159 | 12.8 | 12.012 h |
| April | 19.9°C11.0°C | 11.0°C | 182 | 12.0 | 12.913 h |
| May | 23.6°C15.6°C | 15.6°C | 207 | 12.3 | 13.814 h |
| June | 25.8°C19.8°C | 19.8°C | 460 | 20.7 | 14.214 h |
| July | 29.7°C23.7°C | 23.7°C | 280 | 20.2 | 14.014 h |
| August | 30.1°C24.2°C | 24.2°C | 199 | 19.8 | 13.313 h |
| September, selected | 27.6°C21.6°C | 21.6°C | 233 | 16.4 | 12.412 h |
| October | 23.2°C16.3°C | 16.3°C | 137 | 10.2 | 11.411 h |
| November | 18.3°C10.5°C | 10.5°C | 108 | 8.6 | 10.611 h |
| December | 13.1°C5.1°C | 5.1°C | 81 | 6.6 | 10.110 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
- Kirishima in SeptemberJapan · 29 kmHigh 28.7°C · Low 21.9°C · 202 mm rain
- Miyazaki in SeptemberJapan · 39 kmHigh 27.0°C · Low 22.5°C · 268 mm rain
- Kanoya in SeptemberJapan · 44 kmHigh 28.1°C · Low 22.6°C · 212 mm rain
- Aira in SeptemberJapan · 45 kmHigh 28.0°C · Low 21.5°C · 197 mm rain
- Kagoshima in SeptemberJapan · 52 kmHigh 28.2°C · Low 22.9°C · 202 mm rain
- Sendai, Japan in SeptemberJapan · 73 kmHigh 27.9°C · Low 23.1°C · 198 mm rain
- Honmachi in SeptemberJapan · 96 kmHigh 27.9°C · Low 21.5°C · 174 mm rain
- Nobeoka in SeptemberJapan · 110 kmHigh 27.0°C · Low 21.1°C · 280 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 Miyakonojō) is explained once on the Miyakonojō year overview and on the Sources, method and limits page.