Saint Helier Weather in July
Average highs run from 20°C on July 1 to 21°C on July 31, and lows from 14°C to 15°C. Normal precipitation for the month is 47 mm over about 9 wet days.
July day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 21°C
- Average low
- 14°C
- Precipitation
- 47 mm
- Record high
- 36°CJul 22, 2019
- Record low
- 9°CJul 1, 1972
- Daylight
- 16 h 10 min to 15 h 11 min
- Cloud cover
- 62%
- Humidity
- 83%
- Dew point
- 14°C
- Wind
- 18.7 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 |
|---|---|---|---|---|---|
| Jul 1 | 20°C | 14°C | 29°C 2006 | 9°C 1972 | 38% |
| Jul 2 | 20°C | 14°C | 30°C 2006 | 9°C 2013 | 38% |
| Jul 3 | 20°C | 14°C | 27°C 2006 | 10°C 1979 | 38% |
| Jul 4 | 19°C | 14°C | 28°C 1970 | 9°C 1968 | 38% |
| Jul 5 | 20°C | 14°C | 31°C 2026 | 10°C 1968 | 39% |
| Jul 6 | 19°C | 13°C | 29°C 1971 | 10°C 2004 | 39% |
| Jul 7 | 20°C | 13°C | 30°C 1971 | 9°C 1969 | 39% |
| Jul 8 | 20°C | 13°C | 30°C 2026 | 11°C 2007 | 37% |
| Jul 9 | 20°C | 14°C | 30°C 2026 | 11°C 2007 | 35% |
| Jul 10 | 20°C | 14°C | 30°C 1983 | 10°C 1967 | 33% |
| Jul 11 | 20°C | 14°C | 32°C 2022 | 10°C 1993 | 33% |
| Jul 12 | 20°C | 14°C | 30°C 2025 | 9°C 1972 | 32% |
| Jul 13 | 20°C | 14°C | 32°C 2003 | 10°C 1972 | 31% |
| Jul 14 | 20°C | 14°C | 28°C 1983 | 10°C 2024 | 31% |
| Jul 15 | 21°C | 14°C | 30°C 1983 | 11°C 1977 | 30% |
| Jul 16 | 20°C | 14°C | 32°C 2022 | 10°C 2001 | 30% |
| Jul 17 | 21°C | 14°C | 30°C 2006 | 10°C 1980 | 29% |
| Jul 18 | 22°C | 14°C | 34°C 2016 | 10°C 1965 | 30% |
| Jul 19 | 21°C | 14°C | 30°C 2006 | 10°C 1988 | 29% |
| Jul 20 | 21°C | 15°C | 33°C 1990 | 11°C 1997 | 29% |
| Jul 21 | 21°C | 14°C | 31°C 1996 | 11°C 1980 | 30% |
| Jul 22 | 21°C | 14°C | 36°C 2019 | 9°C 1980 | 31% |
| Jul 23 | 21°C | 14°C | 29°C 2022 | 11°C 1986 | 31% |
| Jul 24 | 22°C | 14°C | 29°C 1995 | 10°C 1995 | 32% |
| Jul 25 | 22°C | 15°C | 28°C 2012 | 10°C 1978 | 31% |
| Jul 26 | 21°C | 15°C | 27°C 2001 | 11°C 1998 | 31% |
| Jul 27 | 21°C | 15°C | 28°C 2001 | 11°C 1972 | 33% |
| Jul 28 | 22°C | 15°C | 30°C 1984 | 11°C 2024 | 32% |
| Jul 29 | 21°C | 15°C | 29°C 2020 | 11°C 1972 | 32% |
| Jul 30 | 21°C | 15°C | 27°C 2024 | 11°C 1986 | 32% |
| Jul 31 | 21°C | 15°C | 32°C 1990 | 10°C 2015 | 32% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- July 1
- sunrise 5:07 AM, sunset 9:17 PM
- July 31
- sunrise 5:39 AM, sunset 8:50 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.