Carnac weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Poor
Best time to visit: July – August
What is the weather like in Carnac in October?
In October, Carnac is mild: daytime highs average 16 °C, and nights cool down to about 13 °C. The sea averages 16.0 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 13 rainy days and 100 mm in total. All in all, October is not an ideal month for a holiday in Carnac.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 27 | 9 | 6 |
| Day | 19° | 16° | 13° |
| Night | 15° | 13° | 10° |
| Sea | 17° | 16° | 14° |
| Sun | 6 h | 4 h | 3 h |
| Rain days | 8 | 13 | 14 |
More details for October
- Daylight
- 10 h 57 min08:29 – 19:27
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 28 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %12 %
- Few rainy daysweight 20 %34 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Carnac in October: quick answers
Is Carnac hot in October?
No. In October, Carnac is mild: daytime highs average 16 °C and nights drop to about 13 °C.
Can you swim in Carnac in October?
Only if you don't mind cold water: in October the sea averages just 16.0 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Carnac in October?
Rain is frequent, with about 13 rainy days and 100 mm in total.
Carnac month by month
The whole year in CarnacAll destinations: FranceWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences