Mainz Weather in December
Average highs run from 5°C on December 1 to 4°C on December 31, and lows from 1°C to -1°C. Normal precipitation for the month is 78 mm over about 12 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
- 4°C
- Average low
- 0°C
- Precipitation
- 78 mm
- Record high
- 15°CDec 31, 2022
- Record low
- -19°CDec 19, 2009
- Daylight
- 8 h 25 min to 8 h 10 min
- Cloud cover
- 78%
- Humidity
- 93%
- Dew point
- 0°C
- Wind
- 15.1 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 |
|---|---|---|---|---|---|
| Dec 1 | 5°C | 1°C | 12°C 2015 | -9°C 2010 | 37% |
| Dec 2 | 5°C | 0°C | 12°C 1992 | -9°C 2010 | 37% |
| Dec 3 | 5°C | 0°C | 12°C 2018 | -10°C 2010 | 37% |
| Dec 4 | 5°C | 0°C | 10°C 1994 | -8°C 2010 | 39% |
| Dec 5 | 5°C | 1°C | 14°C 2006 | -5°C 1995 | 40% |
| Dec 6 | 5°C | 0°C | 12°C 2006 | -6°C 2012 | 40% |
| Dec 7 | 5°C | 0°C | 12°C 2007 | -7°C 1990 | 40% |
| Dec 8 | 5°C | 0°C | 13°C 2025 | -9°C 2012 | 41% |
| Dec 9 | 5°C | 0°C | 11°C 2025 | -10°C 2012 | 42% |
| Dec 10 | 5°C | -1°C | 10°C 2023 | -11°C 1987 | 41% |
| Dec 11 | 4°C | 0°C | 12°C 1994 | -8°C 2002 | 42% |
| Dec 12 | 5°C | 1°C | 12°C 1994 | -8°C 2012 | 41% |
| Dec 13 | 4°C | 0°C | 12°C 2000 | -9°C 1991 | 43% |
| Dec 14 | 4°C | 0°C | 12°C 1989 | -9°C 1991 | 44% |
| Dec 15 | 3°C | -1°C | 10°C 1989 | -12°C 1991 | 45% |
| Dec 16 | 4°C | -1°C | 14°C 1989 | -10°C 1991 | 46% |
| Dec 17 | 3°C | -1°C | 13°C 1989 | -11°C 2022 | 48% |
| Dec 18 | 4°C | 0°C | 13°C 1987 | -14°C 2009 | 48% |
| Dec 19 | 4°C | 0°C | 12°C 2015 | -19°C 2009 | 47% |
| Dec 20 | 5°C | -1°C | 12°C 1993 | -19°C 2009 | 47% |
| Dec 21 | 4°C | -1°C | 13°C 1989 | -11°C 2009 | 46% |
| Dec 22 | 5°C | 0°C | 12°C 2020 | -9°C 2007 | 47% |
| Dec 23 | 5°C | 1°C | 12°C 2012 | -11°C 2001 | 47% |
| Dec 24 | 5°C | 0°C | 12°C 2013 | -14°C 2001 | 46% |
| Dec 25 | 4°C | 0°C | 12°C 1997 | -12°C 2010 | 47% |
| Dec 26 | 4°C | -1°C | 12°C 1997 | -11°C 2010 | 47% |
| Dec 27 | 3°C | -1°C | 11°C 2015 | -10°C 1996 | 47% |
| Dec 28 | 3°C | -1°C | 12°C 1994 | -11°C 1996 | 46% |
| Dec 29 | 3°C | -2°C | 11°C 2022 | -14°C 1996 | 46% |
| Dec 30 | 4°C | -1°C | 15°C 2021 | -10°C 1996 | 45% |
| Dec 31 | 4°C | -1°C | 15°C 2022 | -15°C 1996 | 44% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- December 1
- sunrise 8:03 AM, sunset 4:28 PM
- December 31
- sunrise 8:25 AM, sunset 4:35 PM
Other months
Sources
Records: NOAA GHCN-Daily, station GME00130258, 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.