Izumisano Weather in September
Average highs run from 29°C on September 1 to 24°C on September 30, and lows from 21°C to 15°C. Normal precipitation for the month is 225 mm over about 15 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 26°C
- Average low
- 18°C
- Precipitation
- 225 mm
- Record high
- 36°CSep 2, 1986
- Record low
- 13°CSep 25, 1976
- Daylight
- 12 h 54 min to 11 h 53 min
- Cloud cover
- 70%
- Humidity
- 84%
- Dew point
- 19°C
- Wind
- 10.1 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 29°C | 21°C | 34°C 1985 | 22°C 1980 | 57% |
| Sep 2 | 29°C | 21°C | 36°C 1986 | 20°C 1976 | 57% |
| Sep 3 | 28°C | 21°C | 35°C 1984 | 20°C 1976 | 58% |
| Sep 4 | 28°C | 20°C | 35°C 1983 | 19°C 1976 | 58% |
| Sep 5 | 28°C | 20°C | 34°C 1983 | 18°C 1982 | 57% |
| Sep 6 | 28°C | 20°C | 36°C 1985 | 20°C 1979 | 57% |
| Sep 7 | 28°C | 20°C | 34°C 1987 | 20°C 1981 | 56% |
| Sep 8 | 28°C | 20°C | 34°C 1987 | 19°C 1973 | 56% |
| Sep 9 | 28°C | 20°C | 34°C 1987 | 19°C 1969 | 57% |
| Sep 10 | 28°C | 20°C | 34°C 1987 | 19°C 1969 | 57% |
| Sep 11 | 27°C | 19°C | 35°C 1980 | 17°C 1974 | 56% |
| Sep 12 | 27°C | 19°C | 35°C 1977 | 18°C 1982 | 54% |
| Sep 13 | 27°C | 19°C | 33°C 1977 | 18°C 1982 | 53% |
| Sep 14 | 27°C | 19°C | 33°C 1987 | 18°C 1984 | 50% |
| Sep 15 | 27°C | 19°C | 34°C 1969 | 16°C 1981 | 50% |
| Sep 16 | 26°C | 18°C | 33°C 1969 | 15°C 1981 | 49% |
| Sep 17 | 26°C | 18°C | 34°C 1989 | 17°C 1981 | 49% |
| Sep 18 | 26°C | 18°C | 31°C 1978 | 17°C 1976 | 49% |
| Sep 19 | 26°C | 18°C | 32°C 1978 | 15°C 1976 | 49% |
| Sep 20 | 26°C | 18°C | 33°C 1975 | 14°C 1974 | 48% |
| Sep 21 | 25°C | 17°C | 33°C 1986 | 16°C 1974 | 47% |
| Sep 22 | 25°C | 17°C | 32°C 1969 | 16°C 1976 | 46% |
| Sep 23 | 25°C | 17°C | 32°C 1975 | 14°C 1976 | 47% |
| Sep 24 | 25°C | 17°C | 31°C 1981 | 13°C 1976 | 47% |
| Sep 25 | 25°C | 16°C | 31°C 1982 | 13°C 1976 | 46% |
| Sep 26 | 25°C | 16°C | 30°C 1975 | 15°C 1972 | 46% |
| Sep 27 | 24°C | 16°C | 29°C 1977 | 13°C 1972 | 46% |
| Sep 28 | 24°C | 16°C | 29°C 1977 | 13°C 1987 | 48% |
| Sep 29 | 24°C | 16°C | 30°C 1984 | 13°C 1981 | 49% |
| Sep 30 | 24°C | 15°C | 31°C 1984 | 14°C 1972 | 48% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- September 1
- sunrise 5:32 AM, sunset 6:26 PM
- September 30
- sunrise 5:52 AM, sunset 5:45 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JA000047772, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.