Izalco Weather in December
Average highs run from 30°C on December 1 to 30°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 9 mm over about 3 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
- 30°C
- Average low
- 23°C
- Precipitation
- 9 mm
- Record high
- 38°CDec 7, 1984
- Record low
- 17°CDec 30, 1980
- Daylight
- 11 h 22 min to 11 h 20 min
- Cloud cover
- 24%
- Humidity
- 69%
- Dew point
- 20°C
- Wind
- 16.6 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 | 30°C | 23°C | 36°C 1993 | 19°C 1981 | 11% |
| Dec 2 | 30°C | 23°C | 35°C 1979 | 18°C 1981 | 11% |
| Dec 3 | 30°C | 23°C | 35°C 2023 | 18°C 1981 | 10% |
| Dec 4 | 30°C | 23°C | 35°C 1992 | 19°C 2011 | 10% |
| Dec 5 | 30°C | 23°C | 36°C 2006 | 20°C 1963 | 9% |
| Dec 6 | 30°C | 23°C | 35°C 1986 | 20°C 1966 | 9% |
| Dec 7 | 30°C | 23°C | 38°C 1984 | 19°C 2011 | 10% |
| Dec 8 | 30°C | 23°C | 37°C 1984 | 19°C 2011 | 10% |
| Dec 9 | 30°C | 23°C | 37°C 1979 | 19°C 1982 | 9% |
| Dec 10 | 30°C | 23°C | 37°C 1984 | 20°C 2011 | 9% |
| Dec 11 | 30°C | 23°C | 36°C 2023 | 20°C 2022 | 10% |
| Dec 12 | 30°C | 23°C | 38°C 1978 | 19°C 1990 | 10% |
| Dec 13 | 30°C | 23°C | 38°C 1978 | 19°C 1981 | 10% |
| Dec 14 | 30°C | 23°C | 37°C 1978 | 19°C 1981 | 10% |
| Dec 15 | 30°C | 23°C | 37°C 1985 | 19°C 1973 | 10% |
| Dec 16 | 30°C | 23°C | 38°C 1982 | 19°C 2010 | 10% |
| Dec 17 | 30°C | 23°C | 38°C 1979 | 19°C 1983 | 9% |
| Dec 18 | 30°C | 23°C | 38°C 1978 | 18°C 1983 | 8% |
| Dec 19 | 30°C | 23°C | 36°C 1985 | 18°C 1982 | 8% |
| Dec 20 | 30°C | 23°C | 37°C 1985 | 19°C 1973 | 7% |
| Dec 21 | 30°C | 23°C | 37°C 1980 | 20°C 1963 | 6% |
| Dec 22 | 30°C | 23°C | 35°C 1985 | 19°C 1966 | 6% |
| Dec 23 | 30°C | 23°C | 36°C 1987 | 19°C 1966 | 5% |
| Dec 24 | 30°C | 23°C | 36°C 1989 | 19°C 1973 | 5% |
| Dec 25 | 30°C | 23°C | 37°C 1983 | 19°C 1985 | 5% |
| Dec 26 | 30°C | 23°C | 37°C 1985 | 19°C 1963 | 4% |
| Dec 27 | 30°C | 23°C | 35°C 1972 | 18°C 1963 | 4% |
| Dec 28 | 30°C | 23°C | 37°C 1990 | 18°C 1963 | 3% |
| Dec 29 | 30°C | 23°C | 37°C 1992 | 18°C 1980 | 3% |
| Dec 30 | 30°C | 23°C | 38°C 1987 | 17°C 1980 | 3% |
| Dec 31 | 30°C | 23°C | 36°C 2016 | 20°C 1982 | 3% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:07 AM, sunset 5:29 PM
- December 31
- sunrise 6:22 AM, sunset 5:42 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ES000078650, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.