Weather in Rennes for August 2026
The forecast for the first days of August 2026 in Rennes predicts temperatures to be around 30 °C, close to the historical average.
In general, the average temperature in Rennes at the beginning of August is 30.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.9 °C by the end of August.
Rennes experiences moderate rainfall in August, with an average of 6 rainy days and a total precipitation of 42.3 mm.
Is August a good time to visit Rennes? check out the best time to travel to Rennes page.
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Rennes Weather August
Temperatures trend during August in Rennes
August weather in Rennes day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Sunny | 27° /11° | 0 mm | 5.9 | |
| 2 Aug. | Sunny | 34° /11° | 0 mm | 8 | |
| 3 Aug. | Sunny | 33° /16° | 0 mm | 8 | |
| 4 Aug. |  Patchy rain possible | 30° /15° | 0.4 mm | 7 | |
| 5 Aug. | Sunny | 26° /14° | 0.1 mm | 7 | |
| 6 Aug. | Sunny | 29° /12° | 0 mm | 7 | |
| 7 Aug. | Sunny | 34° /13° | 0 mm | 8 | |
| 8 Aug. | Sunny | 33° /17° | 0.2 mm | 8 | |
| 9 Aug. | Sunny | 29° /16° | 0 mm | 7 | |
| 10 Aug. |  Overcast | 28° /16° | 0 mm | 7 | |
| 11 Aug. | Sunny | 26° /14° | 0 mm | 7 | |
| 12 Aug. |  Partly cloudy | 27° /15° | 0.4 mm | 7 | |
| 13 Aug. | Partly cloudy | 30° /14° | 0 mm | 7 | |
| 14 Aug. | Patchy rain possible | 26° /13° | 4.8 mm | 6 | |
| 15 Aug. | Sunny | 29° /13° | 0.2 mm | 7 | |
| 16 Aug. | Overcast | 26° /14° | 0.4 mm | 6 | |
| 17 Aug. | Patchy rain possible | 26° /13° | 1.7 mm | 6 | |
| 18 Aug. | Patchy rain possible | 26° /14° | 0.1 mm | 6 | |
| 19 Aug. |  Mist | 26° /13° | 0.6 mm | 6 | |
| 20 Aug. | Light rain shower | 24° /12° | 1.2 mm | 6 | |
| 21 Aug. | Sunny | 25° /12° | 1.4 mm | 6 | |
| 22 Aug. | Sunny | 25° /12° | 0.1 mm | 6 | |
| 23 Aug. | Overcast | 26° /14° | 0.6 mm | 6 | |
| 24 Aug. |  Cloudy | 28° /13° | 0.9 mm | 7 | |
| 25 Aug. | Partly cloudy | 26° /12° | 0.6 mm | 6 | |
| 26 Aug. | Sunny | 25° /11° | 1.9 mm | 6 | |
| 27 Aug. | Partly cloudy | 25° /11° | 0.7 mm | 6 | |
| 28 Aug. | Overcast | 26° /11° | 0.4 mm | 6 | |
| 29 Aug. | Overcast | 24° /12° | 4.2 mm | 6 | |
| 30 Aug. | Patchy rain possible | 23° /12° | 2.8 mm | 5 | |
| 31 Aug. | Sunny | 25° /12° | 1.3 mm | 6 | |
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Rennes weather in August vs July vs September
| July | August | September | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 25°/13° | 26°/13° | 22°/12° |
| Rainfall | 63 mm | 42 mm | 63 mm |
| Wind | 21.3 km/h | 20.4 km/h | 21 km/h |
| Humidity | 66% | 65% | 70% |
| Rainy days | 8 days | 6 days | 12 days |
| Dry days | 23 days | 25 days | 18 days |
Planning a trip to Rennes? Discover the best time to visit
Rennes in August - FAQ
What are the expected maximum and minimum temperatures in Rennes during August?
How much rainfall should be expected in Rennes during August?
What are the typical wind conditions in Rennes during August?
August rainfall patterns in Rennes
UV exposure in Rennes during August
What to pack to Rennes in August?
Warm & sunny · highs around 26 °C, occasional showers
As you prepare for your trip to Rennes in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Rennes, during August, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
🎒 Accessories
🧴 Personal Items
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Where is Rennes?Get accurate weather forecasts for Rennes, located at latitude 48.112 and longitude -1.674. Stay updated with localized weather information tailored for Rennes.