Rennes climate

Rennes Weather in July

NASA POWER reanalysis for the half-degree grid cell around Rennes, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 23°C on July 1 to 25°C on July 31, and lows from 13°C to 14°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, in °C.

Normal daily high and low temperature at Rennes, in °C, with the record for each date.010203040151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
24°C
Average low
13°C
Precipitation
47 mm
Reanalysis high
37°CJul 23, 2019
Reanalysis low
8°CJul 13, 2008
Daylight
15 h 59 min to 15 h 03 min
Cloud cover
62%
Humidity
75%
Dew point
14°C
Wind
14.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jul 123°C13°C31°C 20068°C 201136%
Jul 223°C13°C31°C 200610°C 199736%
Jul 323°C13°C29°C 20069°C 199736%
Jul 423°C13°C31°C 19919°C 199836%
Jul 523°C13°C31°C 19919°C 199636%
Jul 623°C13°C30°C 20198°C 199637%
Jul 723°C13°C28°C 20179°C 202036%
Jul 823°C13°C30°C 201010°C 200034%
Jul 923°C13°C30°C 19958°C 199632%
Jul 1024°C13°C31°C 19918°C 200431%
Jul 1124°C13°C30°C 19918°C 200229%
Jul 1224°C13°C31°C 19948°C 200028%
Jul 1324°C13°C31°C 20038°C 200828%
Jul 1424°C13°C33°C 20039°C 201628%
Jul 1524°C13°C33°C 20058°C 201626%
Jul 1624°C13°C31°C 20069°C 200026%
Jul 1724°C13°C33°C 20068°C 200026%
Jul 1824°C13°C34°C 20069°C 200027%
Jul 1925°C13°C32°C 201610°C 201127%
Jul 2025°C13°C31°C 19959°C 200128%
Jul 2125°C13°C31°C 20069°C 200828%
Jul 2225°C13°C31°C 19918°C 200828%
Jul 2325°C14°C37°C 20199°C 201128%
Jul 2425°C14°C33°C 20198°C 201128%
Jul 2525°C14°C34°C 201910°C 200928%
Jul 2625°C14°C32°C 200610°C 199329%
Jul 2725°C14°C29°C 199411°C 200928%
Jul 2825°C14°C30°C 199110°C 200928%
Jul 2925°C14°C32°C 19919°C 201528%
Jul 3025°C14°C32°C 19928°C 201529%
Jul 3125°C14°C30°C 20048°C 200730%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Rennes, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+2).

July 1
sunrise 6:11 AM, sunset 10:10 PM
July 31
sunrise 6:41 AM, sunset 9:44 PM

Every day of July: sun and moon

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.