Izumisano Weather in December
Average highs run from 12°C on December 1 to 8°C on December 31, and lows from 4°C to 0°C. Normal precipitation for the month is 68 mm over about 9 wet days.
December day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 10°C
- Average low
- 1°C
- Precipitation
- 68 mm
- Record high
- 20°CDec 10, 1984
- Record low
- -2°CDec 29, 1976
- Daylight
- 10 h 03 min to 9 h 53 min
- Cloud cover
- 69%
- Humidity
- 84%
- Dew point
- 2°C
- Wind
- 12.6 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 |
|---|---|---|---|---|---|
| Dec 1 | 12°C | 4°C | 17°C 1980 | 2°C 1985 | 28% |
| Dec 2 | 12°C | 3°C | 20°C 1980 | 2°C 1987 | 28% |
| Dec 3 | 12°C | 3°C | 17°C 1971 | 2°C 1987 | 28% |
| Dec 4 | 12°C | 3°C | 18°C 1975 | 0°C 1981 | 28% |
| Dec 5 | 11°C | 3°C | 19°C 1984 | -1°C 1973 | 28% |
| Dec 6 | 11°C | 3°C | 17°C 1969 | 2°C 1988 | 28% |
| Dec 7 | 11°C | 3°C | 18°C 1972 | 1°C 1982 | 28% |
| Dec 8 | 11°C | 2°C | 16°C 1975 | 1°C 1973 | 28% |
| Dec 9 | 11°C | 2°C | 20°C 1978 | 1°C 1969 | 27% |
| Dec 10 | 10°C | 2°C | 20°C 1984 | 2°C 1985 | 28% |
| Dec 11 | 10°C | 2°C | 18°C 1982 | 1°C 1981 | 27% |
| Dec 12 | 10°C | 2°C | 18°C 1984 | 1°C 1985 | 26% |
| Dec 13 | 10°C | 1°C | 17°C 1986 | 0°C 1985 | 26% |
| Dec 14 | 10°C | 1°C | 19°C 1978 | 1°C 1973 | 27% |
| Dec 15 | 9°C | 1°C | 17°C 1978 | 1°C 1985 | 28% |
| Dec 16 | 9°C | 1°C | 17°C 1977 | -1°C 1985 | 27% |
| Dec 17 | 9°C | 1°C | 17°C 1977 | 1°C 1969 | 26% |
| Dec 18 | 9°C | 1°C | 18°C 1986 | -1°C 1973 | 26% |
| Dec 19 | 9°C | 1°C | 14°C 1971 | 1°C 1982 | 27% |
| Dec 20 | 9°C | 1°C | 18°C 1979 | 1°C 1972 | 28% |
| Dec 21 | 9°C | 1°C | 18°C 1979 | -1°C 1969 | 28% |
| Dec 22 | 9°C | 1°C | 16°C 1976 | 0°C 1974 | 28% |
| Dec 23 | 9°C | 1°C | 15°C 1981 | 0°C 1984 | 29% |
| Dec 24 | 8°C | 1°C | 14°C 1972 | 0°C 1973 | 29% |
| Dec 25 | 8°C | 1°C | 16°C 1987 | -2°C 1984 | 28% |
| Dec 26 | 8°C | 0°C | 19°C 1987 | 0°C 1976 | 27% |
| Dec 27 | 8°C | 0°C | 18°C 1987 | -1°C 1983 | 26% |
| Dec 28 | 8°C | 0°C | 19°C 1987 | -1°C 1976 | 26% |
| Dec 29 | 8°C | 0°C | 19°C 1987 | -2°C 1976 | 25% |
| Dec 30 | 8°C | 0°C | 17°C 1987 | -2°C 1984 | 24% |
| Dec 31 | 8°C | 0°C | 15°C 1971 | -1°C 1984 | 24% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- December 1
- sunrise 6:46 AM, sunset 4:49 PM
- December 31
- sunrise 7:05 AM, sunset 4:58 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.