Saint-Nazaire Weather in August
What's the weather like in Saint-Nazaire (Pays de la Loire) in August 2025?
The climate in Saint-Nazaire during August can be summarized as warm and reasonably dry.
August is in the summer in Saint-Nazaire and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 14°C (57°F) is normal.
| Daytime temperature | 23°C 73.3°F |
|---|---|
| Nightly temperature | 13.9°C 56.9°F |
| Average temperature | 18.4°C 65.1°F |
| Daily sunshine | 8 hrs |
| Avg rainfall | 50 mm 2 ins |
| Rainy days | 12 days |
| Sea temperature | 18.5°C 65.4°F |
| Humidity | 78% |
| Windspeed | 13kph 8 mph |
On average August is the 3rd driest month of the year in Saint-Nazaire with around 50mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
August temperatures in Saint-Nazaire
August rainfall
August hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Saint-Nazaire in August 2025.
Other monthly averages
Best places to visit in August
Saint-Nazaire weather stats
| Hottest month: | July | 23°C 73.4°F |
|---|---|---|
| Driest month: | July | 44mm 1.7ins |
| Sunniest month: | July | 8.9hrs |
| Coldest month: | January | 8.8°C 47.8°F |
| Wettest month: | November | 98mm 3.9ins |
© Google
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