Saint-Malo Weather in August
Average highs run from 23°C on August 1 to 21°C on August 31, and lows from 14°C to 13°C. Normal precipitation for the month is 50 mm over about 9 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 22°C
- Average low
- 14°C
- Precipitation
- 50 mm
- Reanalysis high
- 36°CAug 9, 2003
- Reanalysis low
- 10°CAug 31, 2010
- Daylight
- 15 h 04 min to 13 h 28 min
- Cloud cover
- 62%
- Humidity
- 78%
- Dew point
- 14°C
- Wind
- 15.1 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 |
|---|---|---|---|---|---|
| Aug 1 | 23°C | 14°C | 31°C 2004 | 11°C 2015 | 33% |
| Aug 2 | 23°C | 14°C | 30°C 2004 | 11°C 2015 | 33% |
| Aug 3 | 23°C | 14°C | 29°C 1995 | 12°C 1996 | 33% |
| Aug 4 | 23°C | 14°C | 33°C 2003 | 12°C 2020 | 32% |
| Aug 5 | 23°C | 14°C | 35°C 2003 | 12°C 1998 | 32% |
| Aug 6 | 23°C | 14°C | 30°C 2018 | 11°C 1998 | 32% |
| Aug 7 | 23°C | 14°C | 33°C 2020 | 11°C 2012 | 33% |
| Aug 8 | 23°C | 14°C | 34°C 2003 | 11°C 1996 | 33% |
| Aug 9 | 23°C | 14°C | 36°C 2003 | 11°C 2017 | 34% |
| Aug 10 | 23°C | 14°C | 33°C 2003 | 11°C 2018 | 33% |
| Aug 11 | 23°C | 14°C | 34°C 2003 | 11°C 2011 | 33% |
| Aug 12 | 23°C | 14°C | 31°C 2003 | 12°C 2016 | 33% |
| Aug 13 | 23°C | 14°C | 30°C 2003 | 11°C 2007 | 33% |
| Aug 14 | 23°C | 14°C | 28°C 2003 | 11°C 2008 | 32% |
| Aug 15 | 23°C | 14°C | 26°C 1997 | 10°C 1992 | 32% |
| Aug 16 | 23°C | 14°C | 28°C 1997 | 11°C 2015 | 32% |
| Aug 17 | 22°C | 14°C | 29°C 2012 | 11°C 2015 | 33% |
| Aug 18 | 22°C | 14°C | 27°C 1996 | 12°C 1994 | 33% |
| Aug 19 | 22°C | 14°C | 29°C 1996 | 10°C 1991 | 34% |
| Aug 20 | 22°C | 14°C | 29°C 1997 | 10°C 2014 | 33% |
| Aug 21 | 22°C | 14°C | 31°C 1991 | 10°C 2014 | 33% |
| Aug 22 | 22°C | 14°C | 28°C 2017 | 11°C 2014 | 32% |
| Aug 23 | 22°C | 14°C | 29°C 2016 | 11°C 2014 | 32% |
| Aug 24 | 22°C | 14°C | 29°C 2019 | 10°C 2014 | 30% |
| Aug 25 | 22°C | 14°C | 28°C 2001 | 10°C 2015 | 30% |
| Aug 26 | 22°C | 14°C | 27°C 1991 | 10°C 1993 | 29% |
| Aug 27 | 22°C | 14°C | 29°C 2003 | 11°C 1998 | 28% |
| Aug 28 | 22°C | 13°C | 28°C 2017 | 10°C 1998 | 28% |
| Aug 29 | 22°C | 13°C | 26°C 2017 | 10°C 1998 | 28% |
| Aug 30 | 22°C | 13°C | 28°C 2005 | 10°C 2011 | 27% |
| Aug 31 | 21°C | 13°C | 28°C 2005 | 10°C 2010 | 27% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- August 1
- sunrise 6:42 AM, sunset 9:46 PM
- August 31
- sunrise 7:24 AM, sunset 8:52 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.