Ashiya Weather in December
Average highs run from 16°C on December 1 to 10°C on December 31, and lows from to . Normal precipitation for the month is 74 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
- 13°C
- Precipitation
- 74 mm
- Record high
- 26°CDec 4, 2018
- Record low
- -3°CDec 13, 1964
- Daylight
- 10 h 04 min to 9 h 56 min
- Cloud cover
- 70%
- Humidity
- 73%
- Dew point
- 5°C
- Wind
- 22.0 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 | 16°C | 22°C 1953 | 1°C 1963 | 36% | |
| Dec 2 | 16°C | 22°C 1953 | 1°C 1981 | 36% | |
| Dec 3 | 15°C | 21°C 2004 | 0°C 1951 | 37% | |
| Dec 4 | 15°C | 26°C 2018 | 1°C 1969 | 37% | |
| Dec 5 | 15°C | 19°C 1972 | -1°C 1969 | 36% | |
| Dec 6 | 13°C | 20°C 1972 | 0°C 1956 | 36% | |
| Dec 7 | 13°C | 22°C 1992 | 0°C 1960 | 35% | |
| Dec 8 | 13°C | 19°C 1988 | 1°C 1952 | 34% | |
| Dec 9 | 13°C | 22°C 1978 | 0°C 1951 | 33% | |
| Dec 10 | 14°C | 21°C 1984 | 1°C 1955 | 34% | |
| Dec 11 | 13°C | 20°C 2008 | 0°C 1957 | 33% | |
| Dec 12 | 12°C | 21°C 1961 | -1°C 1956 | 32% | |
| Dec 13 | 13°C | 20°C 1959 | -3°C 1964 | 32% | |
| Dec 14 | 13°C | 20°C 1962 | 0°C 1956 | 33% | |
| Dec 15 | 13°C | 21°C 1977 | -1°C 1961 | 33% | |
| Dec 16 | 12°C | 19°C 1996 | -1°C 1964 | 32% | |
| Dec 17 | 12°C | 18°C 1991 | -2°C 1965 | 31% | |
| Dec 18 | 12°C | 19°C 1971 | -1°C 1985 | 31% | |
| Dec 19 | 13°C | 20°C 2025 | -1°C 1952 | 31% | |
| Dec 20 | 13°C | 23°C 2025 | -1°C 1969 | 31% | |
| Dec 21 | 13°C | 20°C 1951 | 0°C 1969 | 30% | |
| Dec 22 | 13°C | 21°C 2016 | -2°C 1960 | 30% | |
| Dec 23 | 13°C | 20°C 1964 | -1°C 1955 | 32% | |
| Dec 24 | 12°C | 20°C 1963 | -2°C 1973 | 33% | |
| Dec 25 | 12°C | 20°C 1987 | -3°C 1967 | 33% | |
| Dec 26 | 12°C | 20°C 1987 | -1°C 1961 | 32% | |
| Dec 27 | 12°C | 20°C 1987 | -3°C 1976 | 32% | |
| Dec 28 | 12°C | 21°C 1987 | -3°C 1956 | 31% | |
| Dec 29 | 11°C | 21°C 1987 | -1°C 1966 | 30% | |
| Dec 30 | 11°C | 19°C 1985 | -2°C 1960 | 30% | |
| Dec 31 | 10°C | 18°C 1986 | -1°C 1960 | 31% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- December 1
- sunrise 7:04 AM, sunset 5:08 PM
- December 31
- sunrise 7:22 AM, sunset 5:18 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JA000047807, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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.