Saint-Nazaire weather in August 2025

Expect 23°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Saint-Nazaire in August. Check more long-term weather averages for Saint-Nazaire in August before you book your next holiday to France in 2025/2026.

• 23
  23°C max day temperature
• 7
  7 hours of sunshine per day
• 12
  12 days with some rainfall
• 14
  14°C min night temperature
• 14
  14 hours of daylight per day
• 0
  No heat & humidity
• 50
  50 mm of monthly rainfall
• 6
  6 (High) UV index
• 18
  18°C sea temperature

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Saint-Nazaire by month

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The August weather guide for France (Saint-Nazaire) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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Saint-Nazaire August sunrise & sunset times

Browse the sunrise and sunset times for Saint-Nazaire in August 2025. Select a month to view Saint-Nazaire sunrise and sunset times for the next 12 months.

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