Saint-Martin-dʼHères Weather in September

Saint-Martin-dʼHères in September averages 19°C (66°F) during the day and 8°C (46°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Saint-Martin-dʼHères in September

Historically, the month has about 11 days of rain, averaging 119 mm (4.7 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Saint-Martin-dʼHères in September

Expect highs of 19°C (66°F) in Saint-Martin-dʼHères in September, with nights dropping to around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Saint-Martin-dʼHères in September

The city usually sees around 193 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit France, check out our Saint-Martin-dʼHères's climate page.

Saint-Martin-dʼHères Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 35%  

Precipitation 119 mm (4.7 in)  

Rainy days 11 days  

Humidity 79% *  

Sunshine 193 hours *  

Percentage Sunshine *  

* Data from: Grenoble, France (3 KM, 2 Miles).

What to Wear in Saint-Martin-dʼHères in September

For Saint-Martin-dʼHères in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Saint-Martin-dʼHères in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Saint-Martin-dʼHères's climate page.

More climate data for Saint-Martin-dʼHères

Temperature Rainfall Sunshine Humidity

See the full Saint-Martin-dʼHères climate overview or explore weather in France.