Santiago de Compostela Weather in December
Average highs run from 12°C on December 1 to 12°C on December 31, and lows from 6°C to 4°C. Normal precipitation for the month is 237 mm over about 16 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
- 12°C
- Average low
- 5°C
- Precipitation
- 237 mm
- Record high
- 23°CDec 2, 1985
- Record low
- -6°CDec 29, 1970
- Daylight
- 9 h 16 min to 9 h 04 min
- Cloud cover
- 76%
- Humidity
- 90%
- Dew point
- 8°C
- Wind
- 10.8 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 | 6°C | 21°C 1983 | -2°C 1947 | 57% |
| Dec 2 | 12°C | 5°C | 23°C 1985 | -3°C 2008 | 57% |
| Dec 3 | 12°C | 6°C | 19°C 1979 | -2°C 2010 | 56% |
| Dec 4 | 12°C | 6°C | 18°C 2016 | -2°C 1973 | 56% |
| Dec 5 | 13°C | 6°C | 20°C 2016 | -2°C 1956 | 56% |
| Dec 6 | 13°C | 6°C | 19°C 1955 | -3°C 1956 | 55% |
| Dec 7 | 12°C | 6°C | 17°C 1989 | -1°C 1956 | 54% |
| Dec 8 | 12°C | 6°C | 17°C 2016 | -3°C 2013 | 54% |
| Dec 9 | 12°C | 5°C | 17°C 2016 | -2°C 1945 | 53% |
| Dec 10 | 13°C | 6°C | 18°C 2010 | -1°C 1945 | 53% |
| Dec 11 | 13°C | 6°C | 18°C 2010 | -3°C 1969 | 53% |
| Dec 12 | 13°C | 6°C | 20°C 1971 | -4°C 1969 | 53% |
| Dec 13 | 13°C | 6°C | 19°C 1994 | -2°C 1969 | 53% |
| Dec 14 | 12°C | 5°C | 18°C 1998 | -3°C 1971 | 53% |
| Dec 15 | 11°C | 4°C | 19°C 1961 | -4°C 2007 | 52% |
| Dec 16 | 11°C | 4°C | 20°C 2015 | -2°C 1988 | 50% |
| Dec 17 | 12°C | 5°C | 17°C 2024 | -4°C 1957 | 50% |
| Dec 18 | 12°C | 6°C | 16°C 1953 | -3°C 2023 | 50% |
| Dec 19 | 12°C | 5°C | 19°C 1987 | -4°C 1978 | 49% |
| Dec 20 | 12°C | 6°C | 18°C 1987 | -3°C 2009 | 50% |
| Dec 21 | 12°C | 6°C | 18°C 1971 | -3°C 1990 | 50% |
| Dec 22 | 12°C | 6°C | 16°C 2002 | -3°C 2005 | 51% |
| Dec 23 | 12°C | 5°C | 18°C 1977 | -2°C 1963 | 52% |
| Dec 24 | 12°C | 5°C | 19°C 1983 | -2°C 1963 | 52% |
| Dec 25 | 12°C | 4°C | 19°C 1977 | -6°C 2001 | 53% |
| Dec 26 | 11°C | 4°C | 16°C 1983 | -3°C 1962 | 52% |
| Dec 27 | 12°C | 4°C | 18°C 1983 | -4°C 1970 | 53% |
| Dec 28 | 12°C | 5°C | 18°C 2019 | -3°C 1975 | 53% |
| Dec 29 | 12°C | 6°C | 20°C 2019 | -6°C 1970 | 52% |
| Dec 30 | 12°C | 6°C | 16°C 2019 | -5°C 1970 | 53% |
| Dec 31 | 12°C | 4°C | 20°C 2021 | -4°C 1975 | 54% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- December 1
- sunrise 8:45 AM, sunset 6:01 PM
- December 31
- sunrise 9:05 AM, sunset 6:09 PM
Other months
Sources
Records: NOAA GHCN-Daily, station SPE00119729, 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.