Rennes
August
Weather in Rennes for August 2025
Your guide to Rennes weather in August - trends and predictions
In general, the average temperature in Rennes at the beginning of August is 23.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 24.1 °C by the end of August.
Expect significant rainfall in Rennes during August, with an average of 16 rainy days.
Is August a good time to visit Rennes? check out the best time to travel to Rennes page.
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15
Dry days
16
Rainy days
0
Snow days
24°/13°
Temperatures
21 km/h
Avg max wind
70 %
Avg humidity
Rennes in August average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  24° | 3 21° | ||||
| 4 23° | 5 25° | 6 22° | 7  23° | 8  26° | 9 28° | 10 30° |
| 11 28° | 12 29° | 13 26° | 14 24° | 15 25° | 16 24° | 17 27° |
| 18 26° | 19 27° | 20 25° | 21  26° | 22 26° | 23 27° | 24 26° |
| 25 24° | 26  24° | 27 26° | 28 28° | 29 23° | 30 19° | 31 25° |
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Temperatures trend during August in Rennes
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 25° /15° | 1.5 mm | 6 | |
| 2 Aug. | Moderate rain at times | 24° /14° | 1.8 mm | 6 | |
| 3 Aug. | Moderate or heavy rain shower | 21° /13° | 7.5 mm | 5 | |
| 4 Aug. | Patchy rain possible | 23° /12° | 0.2 mm | 6 | |
| 5 Aug. | Patchy rain possible | 25° /11° | 0.2 mm | 6 | |
| 6 Aug. | Patchy rain possible | 22° /12° | 1.5 mm | 5 | |
| 7 Aug. | Partly cloudy | 23° /10° | 0 mm | 6 | |
| 8 Aug. | Overcast | 26° /11° | 0 mm | 6 | |
| 9 Aug. | Partly cloudy | 28° /13° | 0.1 mm | 7 | |
| 10 Aug. | Patchy rain possible | 30° /14° | 0.2 mm | 8 | |
| 11 Aug. | Moderate or heavy rain shower | 28° /16° | 16 mm | 7 | |
| 12 Aug. | Overcast | 29° /15° | 0 mm | 7 | |
| 13 Aug. | Overcast | 26° /13° | 0 mm | 6 | |
| 14 Aug. | Patchy rain possible | 24° /12° | 0.3 mm | 5 | |
| 15 Aug. | Patchy rain possible | 25° /12° | 0.3 mm | 6 | |
| 16 Aug. | Overcast | 24° /13° | 0.1 mm | 6 | |
| 17 Aug. | Patchy rain possible | 27° /15° | 1.3 mm | 6 | |
| 18 Aug. | Partly cloudy | 26° /14° | 0.1 mm | 6 | |
| 19 Aug. | Overcast | 27° /13° | 0.1 mm | 6 | |
| 20 Aug. | Partly cloudy | 25° /11° | 1.3 mm | 6 | |
| 21 Aug. | Sunny | 26° /11° | 0 mm | 7 | |
| 22 Aug. | Sunny | 26° /12° | 0 mm | 7 | |
| 23 Aug. | Partly cloudy | 27° /16° | 1 mm | 7 | |
| 24 Aug. | Patchy rain possible | 26° /14° | 2 mm | 6 | |
| 25 Aug. | Overcast | 24° /10° | 0 mm | 6 | |
| 26 Aug. | Patchy light rain with thunder | 24° /10° | 4.4 mm | 6 | |
| 27 Aug. | Light rain shower | 26° /10° | 0.6 mm | 6 | |
| 28 Aug. | Patchy rain possible | 28° /13° | 0.2 mm | 7 | |
| 29 Aug. | Patchy rain possible | 23° /11° | 0.1 mm | 5 | |
| 30 Aug. | Patchy rain possible | 19° /11° | 5.3 mm | 5 | |
| 31 Aug. | Light rain shower | 25° /11° | 1.8 mm | 6 | |
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Important Notice
Our weather forecast for Rennes in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Rennes forecast closer to your planned date for the most up-to-date weather information.
Rennes in August - FAQ
What are the expected maximum and minimum temperatures in Rennes during August?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Rennes during August?
Moderate rainfall is anticipated in Rennes during August, with a total of 70.8 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Rennes during August?
The average wind speed in Rennes during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Rennes in August?
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
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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