Saint-Nazaire weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Fair
Best time to visit: July – August
What is the weather like in Saint-Nazaire in July?
In July, Saint-Nazaire is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 44 mm. All in all, July is a so-so month for a holiday in Saint-Nazaire.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 15 h 36 min06:27 – 22:02
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 52 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %57 %
- Seaweight 25 %17 %
- Sunshineweight 20 %82 %
- Few rainy daysweight 20 %71 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Saint-Nazaire in July: quick answers
Is Saint-Nazaire hot in July?
Warm rather than hot: in July, daytime highs in Saint-Nazaire average 22 °C and nights cool to about 16 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Saint-Nazaire in July?
Only if you don't mind cold water: in July the sea averages just 18.2 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Saint-Nazaire in July?
Rain falls on about 8 days, adding up to 44 mm.
Saint-Nazaire month by month
The whole year in Saint-NazaireAll destinations: FranceWhere to go in JulySea temperature in July
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