Rennes Weather: August
 |
Average Day Temperature: | 76.8°F |
|
Average Night Temperature: | 57.9°F |
|
Sea Water Temperature: | 67.6°F |
|
Number of Sunny Days: | 12 days |
| Sunshine Hours: | 13.4 - 15.0 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.5 in | |
| detailed information | ||
forecast
| Rennes |
Temperature
| Rennes |
Air Temperature in August, °F
The highest day temperature in August 2025 was 101°F. The lowest night temperature was 50°F. The average values for day and night temperatures during August were 83.5°F и 57.6°F respectivly.
Rennes Water Sea Temperature in August, °F
The average sea surface temperature in August 2025 for Rennes was 69.2°F. The maximum and minimum values were 67.4°F and 70.2°F respectively.
You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in August, in
Precipitation total in August for Rennes is 1.5 in. It makes august one of the least rainy months of the year.
The average wind speed in August is 8.2 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rennes in August is 8.6 hours.
Rennes on the Weather Map
| Antibes |  |
+48 |
| Arcachon |  |
+50 |
| Biarritz |  |
+50 |
| Bordeaux | |
+44 |
| Cannes | |
+46 |
| Corsica | |
+52 |
| Etretat | |
+44 |
| Marseilles | |
+46 |
| Menton | |
+50 |
| Montpellier |  |
+46 |
| Nice | |
+44 |
| Paris | |
+36 |
| Saint-Tropez | |
+44 |
| Toulon | |
+46 |
| Toulouse | |
+42 |
| 0900 |  |
38°F | N 7 mph |
| 1200 |  |
46°F | N 14 mph |
| 1500 |  |
44°F | NW 19 mph |
| 1800 | |
50°F | N 22 mph |
| 2100 | |
54°F | NE 12 mph |
| 0000 | |
50°F | NE 15 mph |
| 0300 |  |
52°F | NE 17 mph |
| 0600 | |
52°F | NE 18 mph |