Saint-Nazaire 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 Saint-Nazaire in October?
In October, Saint-Nazaire is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 16.0 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 79 mm in total. All in all, October is not an ideal month for a holiday in Saint-Nazaire.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 39 | 13 | 8 |
| Day | 21° | 17° | 13° |
| Night | 14° | 12° | 8° |
| Sea | 18° | 16° | 14° |
| Sun | 7 h | 4 h | 3 h |
| Rain days | 8 | 12 | 12 |
More details for October
- Daylight
- 10 h 58 min08:25 – 19:23
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 65 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %18 %
- Few rainy daysweight 20 %45 %
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
Saint-Nazaire in October: quick answers
Is Saint-Nazaire hot in October?
No. In October, Saint-Nazaire is mild: daytime highs average 17 °C and nights drop to about 12 °C.
Can you swim in Saint-Nazaire 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 Saint-Nazaire in October?
Rain is frequent, with about 12 rainy days and 79 mm in total.
Saint-Nazaire month by month
The whole year in Saint-NazaireAll 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