August · France
Best time to visit Nantes in August Weather, crowds & prices
Weather in Nantes in August
Average temperature 21°C, 43 mm of rain, about 21 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.5/10
Ranked #2 of 12 months
- Avg temp
- 21°C
- Rainfall
- 43 mm
- Humidity
- 69%
- Days with 6h+ sun
- 21
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Nantes scores 9.5/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 21°C, 43 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
Nantes mixes a ducal castle, the Machines de l'île and the Loire estuary's vineyards and beaches.
August ranks 2nd of 12 for Nantes — one of the best windows
At 21°C (70°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
With around 43 mm of rain, any showers tend to pass through rather than settle in; about 21 days with 6+ hours of sunshine and 14 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Nantes at 9.5/10 (2nd of 12), just behind July at 9.9/10.
Pack light clothing, a hat and real sun protection.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Nantes in August?
- In August, Nantes averages 21°C, 43 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 9.5/10.
- Is August a good time to visit Nantes?
- August earns a 9.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nantes in August?
- Expect about 43 mm of rain in August. Average humidity is 69% and there are about 21 days with 6+ hours of sunshine.
Curated in Nantes
Tickets & experiences
Things to do in Nantes
Nantes, France. Live activities and tours from GetYourGuide, matched to this destination.