Petit-Mars

Loire-Atlantique, Pays de la Loire, France

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Current Weather

20°

Light Rain

Feels Like: 20°

Min: 17°

Max: 20°

The next few hours will be overcast, with today reaching 20°C and dropping to 17°C. The coming days will be drizzle

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

19° 20° 20° 20° 20° 20° 19° 19° 18° 18° 18° 18° 18° 18° 18° 17° 18° 18° 18° 19° 20° 22° 24° 25°
100%
84%
84%
84%
36%
36%
20%
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
Today
Tomorrow

Daylight Hours

08:08

Sunrise

19:42

Sunset

11 hours 33 minutes of sunlight today

Moon

Waning Gibbous

20:14

Moonrise

10:10

Moonset

Daily Forecast

Today

17°
20°

Tuesday

17°
27°

Wednesday

18°
22°

Thursday

14°
20°

Friday

11°
22°

Saturday

13°
23°

Sunday

13°
21°

Monday

12°
22°

Tuesday

12°
22°

Wednesday

15°
22°

Air Quality Data Available

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UV Index

No protection needed
2 Low
Low Extreme

Humidity

88% Humid
Low High

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Weather in Petit-Mars today, September 28, 2026

Petit-Mars starts September 28, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.

Expect highs of 20°C and cooler readings close to 17°C. The air stays humid, with relative humidity between 87% and 94% and the peak around 22:00. A lighter breeze peaks around 23:00 near 3.1 km/h.

Afternoon showers stay in play, peaking near 100% around 14:00. Skies remain cluttered, with cover about 100% by 14:00. Horizontal visibility sits around 19.7 km, briefly nearer 11.6 km. Expect sunrise at 08:08, sunset at 19:42, and 11 hours 33 minutes of sunlight today overall.

Taken together, Petit-Mars looks wet enough on September 28, 2026 that flexible outdoor plans work best, with temperatures peaking near 20°C.

Frequently asked questions about weather in Petit-Mars

How warm does it get in Petit-Mars?

The warmest month in Petit-Mars is August, with average high temperatures of 25°C. The average temperature during this period is around 20°C.

How cold does it get in Petit-Mars?

The coldest month in Petit-Mars is January, with average low temperatures of 3°C. The average temperature during this period is around 6°C.

What is the wettest time of year in Petit-Mars?

The wettest month in Petit-Mars is October, with an average of 80mm of precipitation.

What is the driest time of year in Petit-Mars?

The driest month in Petit-Mars is August, with an average of 35mm of precipitation.

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Metric (°C, km/h)