Saint Helier Weather in January
Average highs run from 9°C on January 1 to 9°C on January 31, and lows from 5°C to 4°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, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 9°C
- Average low
- 5°C
- Precipitation
- 93 mm
- Record high
- 14°CJan 25, 1983
- Record low
- -11°CJan 20, 1963
- Daylight
- 8 h 18 min to 9 h 22 min
- Cloud cover
- 76%
- Humidity
- 87%
- Dew point
- 5°C
- Wind
- 27.7 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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 9°C | 5°C | 14°C 2022 | -4°C 1997 | 54% |
| Jan 2 | 9°C | 5°C | 13°C 1999 | -6°C 1997 | 54% |
| Jan 3 | 9°C | 4°C | 12°C 1999 | -6°C 1997 | 54% |
| Jan 4 | 9°C | 4°C | 13°C 2025 | -5°C 2009 | 54% |
| Jan 5 | 10°C | 4°C | 12°C 2023 | -2°C 2009 | 53% |
| Jan 6 | 9°C | 5°C | 13°C 2014 | -6°C 1979 | 53% |
| Jan 7 | 9°C | 5°C | 13°C 1998 | -4°C 1979 | 52% |
| Jan 8 | 9°C | 5°C | 13°C 2015 | -6°C 1997 | 52% |
| Jan 9 | 9°C | 5°C | 13°C 2007 | -5°C 2009 | 51% |
| Jan 10 | 9°C | 5°C | 12°C 2012 | -4°C 2009 | 52% |
| Jan 11 | 10°C | 5°C | 12°C 2011 | -3°C 1987 | 52% |
| Jan 12 | 10°C | 5°C | 13°C 1993 | -8°C 1987 | 52% |
| Jan 13 | 9°C | 5°C | 13°C 1975 | -9°C 1987 | 50% |
| Jan 14 | 9°C | 5°C | 12°C 1998 | -7°C 1987 | 51% |
| Jan 15 | 9°C | 5°C | 13°C 1993 | -5°C 1966 | 51% |
| Jan 16 | 9°C | 5°C | 12°C 2007 | -5°C 1985 | 50% |
| Jan 17 | 9°C | 5°C | 13°C 2007 | -9°C 1985 | 50% |
| Jan 18 | 9°C | 5°C | 13°C 2007 | -9°C 1985 | 49% |
| Jan 19 | 9°C | 5°C | 13°C 2008 | -8°C 1966 | 49% |
| Jan 20 | 8°C | 5°C | 13°C 1969 | -11°C 1963 | 48% |
| Jan 21 | 9°C | 5°C | 12°C 1995 | -9°C 1963 | 48% |
| Jan 22 | 9°C | 5°C | 13°C 2024 | -5°C 1963 | 47% |
| Jan 23 | 9°C | 5°C | 12°C 1990 | -5°C 1963 | 47% |
| Jan 24 | 9°C | 4°C | 13°C 2024 | -5°C 1963 | 46% |
| Jan 25 | 8°C | 4°C | 14°C 1983 | -4°C 1963 | 44% |
| Jan 26 | 8°C | 4°C | 13°C 2002 | -3°C 1963 | 43% |
| Jan 27 | 9°C | 4°C | 12°C 2002 | -3°C 2000 | 43% |
| Jan 28 | 8°C | 4°C | 13°C 2002 | -2°C 1998 | 44% |
| Jan 29 | 8°C | 4°C | 12°C 2020 | -1°C 1998 | 44% |
| Jan 30 | 8°C | 4°C | 13°C 2004 | -4°C 1972 | 44% |
| Jan 31 | 9°C | 4°C | 13°C 2004 | -5°C 1987 | 45% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+0).
- January 1
- sunrise 8:03 AM, sunset 4:21 PM
- January 31
- sunrise 7:41 AM, sunset 5:03 PM
Other months
Sources
Records: NOAA GHCN-Daily, station UKE00105880, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.