Chamonix-Mont-Blanc
August
Weather in Chamonix-Mont-Blanc for August 2026
Your guide to Chamonix-Mont-Blanc weather in August - trends and predictions
In general, the average temperature in Chamonix-Mont-Blanc at the beginning of August is 18 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 17 °C by the end of August.
The climate of Chamonix-Mont-Blanc in August is notably wet, with an average of 13 rainy days, and a total of 289.3 mm of precipitation.
Is August a good time to visit Chamonix-Mont-Blanc? check out the best time to travel to Chamonix-Mont-Blanc page.
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Temperatures
Rain 🌧️
More
18
Dry days
13
Rainy days
0
Snow days
20°/7°
Temperatures
9 km/h
Avg max wind
69 %
Avg humidity
Chamonix-Mont-Blanc Weather August
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Temperatures trend during August in Chamonix-Mont-Blanc
See the weather trend as well as the moving average line
August weather in Chamonix-Mont-Blanc day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Patchy light rain with thunder | 18° /8° | 4.7 mm | 5 | |
| 2 Aug. | Patchy light rain with thunder | 15° /7° | 6 mm | 4 | |
| 3 Aug. |  Patchy rain possible | 15° /5° | 0.3 mm | 4 | |
| 4 Aug. | Patchy rain possible | 18° /6° | 0 mm | 5 | |
| 5 Aug. |  Sunny | 20° /8° | 0.3 mm | 5 | |
| 6 Aug. | Sunny | 20° /8° | 0.9 mm | 5 | |
| 7 Aug. | Patchy light rain with thunder | 20° /9° | 0.7 mm | 6 | |
| 8 Aug. | Patchy rain possible | 22° /10° | 0.1 mm | 6 | |
| 9 Aug. | Patchy rain possible | 22° /11° | 0 mm | 6 | |
| 10 Aug. | Sunny | 23° /11° | 0 mm | 6 | |
| 11 Aug. |  Moderate or heavy rain shower | 23° /13° | 12 mm | 5 | |
| 12 Aug. |  Moderate or heavy rain with thunder | 23° /12° | 8.4 mm | 6 | |
| 13 Aug. | Moderate or heavy rain with thunder | 23° /12° | 12.1 mm | 5 | |
| 14 Aug. | Moderate or heavy rain with thunder | 21° /10° | 12.4 mm | 5 | |
| 15 Aug. | Patchy light rain with thunder | 21° /10° | 4.9 mm | 5 | |
| 16 Aug. | Patchy light rain with thunder | 20° /10° | 7.4 mm | 5 | |
| 17 Aug. | Moderate or heavy rain shower | 17° /9° | 15.6 mm | 4 | |
| 18 Aug. | Patchy light rain with thunder | 15° /8° | 3.8 mm | 5 | |
| 19 Aug. | Patchy rain possible | 18° /8° | 7.2 mm | 5 | |
| 20 Aug. | Patchy rain possible | 16° /7° | 9 mm | 4 | |
| 21 Aug. | Patchy rain possible | 13° /6° | 3.8 mm | 4 | |
| 22 Aug. | Sunny | 17° /6° | 0.4 mm | 5 | |
| 23 Aug. | Sunny | 17° /7° | 0 mm | 5 | |
| 24 Aug. | Patchy rain possible | 19° /7° | 0.7 mm | 5 | |
| 25 Aug. | Patchy light rain with thunder | 16° /7° | 2.4 mm | 4 | |
| 26 Aug. | Patchy light rain with thunder | 17° /7° | 0.8 mm | 4 | |
| 27 Aug. | Patchy rain possible | 19° /9° | 7.6 mm | 4 | |
| 28 Aug. | Patchy rain possible | 17° /8° | 11.9 mm | 4 | |
| 29 Aug. | Patchy rain possible | 16° /7° | 7.1 mm | 4 | |
| 30 Aug. | Moderate rain at times | 15° /7° | 2.1 mm | 4 | |
| 31 Aug. | Patchy light rain with thunder | 19° /7° | 2.1 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Chamonix-Mont-Blanc 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 Chamonix-Mont-Blanc forecast closer to your planned date for the most up-to-date weather information.
Change Month
Chamonix-Mont-Blanc weather in August vs July vs September
Compare August weather in Chamonix-Mont-Blanc with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| July | August | September | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Sunny |
| Temperatures | 19°/6° | 20°/7° | 17°/2° |
| Rainfall | 334 mm | 289 mm | 488 mm |
| Snowfall | 0 cm | 0 cm | 4 cm |
| Wind | 9.8 km/h | 9.3 km/h | 8.9 km/h |
| Humidity | 72% | 69% | 77% |
| Rainy days | 12 days | 13 days | 17 days |
| Snow days | 0 days | 0 days | 0 days |
| Dry days | 19 days | 18 days | 13 days |
Planning a trip to Chamonix-Mont-Blanc? Discover the best time to visit
Chamonix-Mont-Blanc in August - FAQ
What are the expected maximum and minimum temperatures in Chamonix-Mont-Blanc during August?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Chamonix-Mont-Blanc during August?
Significant rainfall exceeding 289.3 mm is expected in Chamonix-Mont-Blanc during August, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Chamonix-Mont-Blanc during August?
The average wind speed in Chamonix-Mont-Blanc during August is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Chamonix-Mont-Blanc in August?
As you prepare for your trip to Chamonix-Mont-Blanc 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 Chamonix-Mont-Blanc, 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
- 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
August rainfall patterns in Chamonix-Mont-Blanc
Explore the daily rainfall trends and prepare for Chamonix-Mont-Blancs August weather 💧
UV exposure in Chamonix-Mont-Blanc during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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