Caerphilly Weather in January
Average highs run from 7°C on January 1 to 7°C on January 31, and lows from 3°C to 2°C. Normal precipitation for the month is 93 mm over about 16 wet days.
January day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
January at a glance
- Average high
- 7°C
- Average low
- 3°C
- Precipitation
- 93 mm
- Reanalysis high
- 13°CJan 24, 2016
- Reanalysis low
- -5°CJan 6, 2009
- Daylight
- 7 h 55 min to 9 h 07 min
- Cloud cover
- 77%
- Humidity
- 93%
- Dew point
- 4°C
- Wind
- 22.7 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 7°C | 3°C | 12°C 2015 | -5°C 1997 | 56% |
| Jan 2 | 7°C | 3°C | 12°C 2018 | -5°C 1997 | 56% |
| Jan 3 | 7°C | 3°C | 11°C 2015 | -5°C 1997 | 56% |
| Jan 4 | 7°C | 3°C | 12°C 1999 | -4°C 2010 | 55% |
| Jan 5 | 7°C | 3°C | 11°C 1999 | -3°C 2009 | 56% |
| Jan 6 | 7°C | 3°C | 11°C 1999 | -5°C 2009 | 57% |
| Jan 7 | 7°C | 3°C | 11°C 2020 | -5°C 2010 | 57% |
| Jan 8 | 7°C | 3°C | 12°C 2007 | -4°C 2010 | 58% |
| Jan 9 | 7°C | 3°C | 12°C 1998 | -4°C 2010 | 58% |
| Jan 10 | 7°C | 3°C | 12°C 2015 | -4°C 1997 | 59% |
| Jan 11 | 7°C | 3°C | 12°C 2005 | -2°C 2010 | 59% |
| Jan 12 | 7°C | 3°C | 12°C 2007 | -2°C 2010 | 58% |
| Jan 13 | 7°C | 3°C | 11°C 1993 | -2°C 1991 | 56% |
| Jan 14 | 7°C | 3°C | 12°C 2020 | -1°C 1991 | 56% |
| Jan 15 | 7°C | 3°C | 11°C 1993 | -2°C 1991 | 56% |
| Jan 16 | 7°C | 3°C | 12°C 1993 | -1°C 2001 | 54% |
| Jan 17 | 7°C | 3°C | 10°C 2008 | -1°C 1994 | 53% |
| Jan 18 | 7°C | 3°C | 12°C 2007 | -1°C 2004 | 53% |
| Jan 19 | 7°C | 3°C | 12°C 2007 | -2°C 2013 | 53% |
| Jan 20 | 7°C | 3°C | 12°C 2007 | -2°C 2011 | 52% |
| Jan 21 | 7°C | 3°C | 11°C 1993 | -3°C 2011 | 50% |
| Jan 22 | 7°C | 3°C | 11°C 2016 | -3°C 1992 | 50% |
| Jan 23 | 7°C | 3°C | 12°C 2018 | -2°C 1992 | 49% |
| Jan 24 | 7°C | 3°C | 13°C 2016 | -3°C 2013 | 48% |
| Jan 25 | 7°C | 3°C | 12°C 2016 | -3°C 1996 | 48% |
| Jan 26 | 7°C | 2°C | 12°C 2003 | -4°C 1996 | 46% |
| Jan 27 | 7°C | 2°C | 12°C 2016 | -4°C 1996 | 46% |
| Jan 28 | 7°C | 2°C | 11°C 2002 | -3°C 2011 | 46% |
| Jan 29 | 7°C | 2°C | 12°C 2013 | -3°C 2011 | 46% |
| Jan 30 | 7°C | 2°C | 11°C 2020 | -2°C 2011 | 46% |
| Jan 31 | 7°C | 2°C | 12°C 2016 | -3°C 2011 | 46% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT).
- January 1
- sunrise 8:19 AM, sunset 4:14 PM
- January 31
- sunrise 7:53 AM, sunset 5:00 PM
Other months
Sources
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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.