Newton Mearns Weather in December
Average highs run from 9°C on December 1 to 7°C on December 31, and lows from 2°C to 1°C. Normal precipitation for the month is 115 mm over about 19 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
- 8°C
- Average low
- 2°C
- Precipitation
- 115 mm
- Record high
- 15°CDec 8, 2025
- Record low
- -11°CDec 27, 1995
- Daylight
- 7 h 27 min to 7 h 07 min
- Cloud cover
- 78%
- Humidity
- 95%
- Dew point
- 3°C
- Wind
- 20.5 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 | 9°C | 2°C | 14°C 1985 | -7°C 2010 | 66% |
| Dec 2 | 8°C | 3°C | 12°C 1985 | -7°C 2010 | 66% |
| Dec 3 | 8°C | 3°C | 13°C 1986 | -8°C 2010 | 65% |
| Dec 4 | 9°C | 2°C | 13°C 2015 | -8°C 1976 | 65% |
| Dec 5 | 8°C | 2°C | 13°C 2016 | -8°C 1976 | 65% |
| Dec 6 | 9°C | 1°C | 14°C 2016 | -6°C 2010 | 65% |
| Dec 7 | 9°C | 2°C | 13°C 2016 | -7°C 2010 | 64% |
| Dec 8 | 9°C | 2°C | 15°C 2025 | -10°C 2010 | 65% |
| Dec 9 | 9°C | 3°C | 14°C 1994 | -9°C 2010 | 65% |
| Dec 10 | 8°C | 3°C | 14°C 1994 | -7°C 1981 | 64% |
| Dec 11 | 8°C | 2°C | 13°C 2013 | -7°C 2017 | 64% |
| Dec 12 | 7°C | 1°C | 14°C 1998 | -9°C 1981 | 63% |
| Dec 13 | 7°C | 1°C | 13°C 1998 | -7°C 2022 | 63% |
| Dec 14 | 8°C | 2°C | 12°C 1971 | -9°C 2022 | 64% |
| Dec 15 | 8°C | 2°C | 14°C 2015 | -9°C 2022 | 64% |
| Dec 16 | 8°C | 3°C | 13°C 2024 | -7°C 2022 | 64% |
| Dec 17 | 8°C | 2°C | 14°C 2015 | -7°C 1981 | 64% |
| Dec 18 | 7°C | 2°C | 14°C 2015 | -10°C 1981 | 65% |
| Dec 19 | 7°C | 1°C | 14°C 1971 | -10°C 1981 | 65% |
| Dec 20 | 7°C | 0°C | 14°C 2015 | -9°C 1999 | 64% |
| Dec 21 | 8°C | 0°C | 13°C 1991 | -10°C 2010 | 64% |
| Dec 22 | 8°C | 1°C | 13°C 2017 | -9°C 2010 | 64% |
| Dec 23 | 7°C | 2°C | 13°C 2024 | -10°C 2010 | 63% |
| Dec 24 | 7°C | 2°C | 13°C 2016 | -10°C 2010 | 63% |
| Dec 25 | 7°C | 1°C | 13°C 2011 | -8°C 2010 | 63% |
| Dec 26 | 7°C | 1°C | 14°C 1983 | -10°C 1995 | 64% |
| Dec 27 | 7°C | 1°C | 13°C 1988 | -11°C 1995 | 65% |
| Dec 28 | 7°C | 1°C | 13°C 2021 | -10°C 1995 | 66% |
| Dec 29 | 8°C | 1°C | 12°C 2004 | -10°C 1995 | 66% |
| Dec 30 | 7°C | 1°C | 13°C 2021 | -11°C 2000 | 66% |
| Dec 31 | 7°C | 1°C | 14°C 2021 | -11°C 1961 | 66% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+0).
- December 1
- sunrise 8:23 AM, sunset 3:50 PM
- December 31
- sunrise 8:47 AM, sunset 3:54 PM
Other months
Sources
Records: NOAA GHCN-Daily, station UKE00105856, 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.