Sunshine Map

Saint-Nazaire/Montoir weather by month & the best time to visit

🇫🇷 France · seaside town · oceanic / maritime climate

The best time to visit Saint-Nazaire/Montoir is September — its sunniest month (Sunshine Score 83/100), with June and July close behind. Saint-Nazaire/Montoir averages about 2,144 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 43 mm of rain in September.

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Sun hours / year
2,144
Sunniest month
September
Peak score
83/100
Rain / year
740 mm
Midday UV at peak
6 (high)
Sea at warmest
22°C / 72°F
Population
67k
Elevation
Sea level
Saint-Nazaire/Montoir, France
Saint-Nazaire/Montoir — photo via Wikimedia Commons

When is the best time to visit Saint-Nazaire/Montoir?

For sunshine, the best time to visit Saint-Nazaire/Montoir is September, then June and July. The dullest month is January (6/100, 77 mm of rain). The full month-by-month picture is in the table below.

How sunny is Saint-Nazaire/Montoir?

Saint-Nazaire/Montoir gets a moderate 2,144 hours of sunshine a year. 77 Sunshine Score points separate September (83) from January (6), so the month you pick matters. It ranks #28 of 53 destinations in France for annual sunshine, below the national median of 2,146 hours. The year's 740 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

January: 6February: 13March: 33April: 55May: 74June: 82July: 82August: 82September: 8383October: 64November: 32December: 6JFMAMJJASOND
MonthScoreDay highNight lowRainUVSea
January6 9° / 48°F3° / 37°F 77 mm19° / 48°F
February13 10° / 50°F2° / 36°F 61 mm110° / 50°F
March33 13° / 55°F4° / 39°F 62 mm211° / 52°F
April55 16° / 61°F6° / 43°F 48 mm413° / 55°F
May74 19° / 66°F9° / 48°F 59 mm517° / 63°F
June82 23° / 73°F12° / 54°F 50 mm619° / 66°F
July82 25° / 77°F14° / 57°F 48 mm620° / 68°F
August82 25° / 77°F14° / 57°F 48 mm522° / 72°F
September83 22° / 72°F11° / 52°F 43 mm419° / 66°F
October64 18° / 64°F9° / 48°F 78 mm216° / 61°F
November32 13° / 55°F6° / 43°F 81 mm113° / 55°F
December6 9° / 48°F3° / 37°F 85 mm110° / 50°F

Sea temperature in Saint-Nazaire/Montoir by month

The sea off Saint-Nazaire/Montoir is warmest in August at around 22°C / 72°F, and coolest in January at 9°C / 48°F. The water sits at a comfortable 21°C or warmer roughly 1 month a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.

See Saint-Nazaire/Montoir on the interactive sunshine globe →

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