ClimateForecastSeptemberOctober >>

Chamonix-Mont-Blanc weather in September (Rhône-Alps, France)

Looking to travel to Chamonix-Mont-Blanc in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

Temperatures

In September, Chamonix-Mont-Blanc typically experiences moderate temperatures and high rainfall. Throughout the day, temperatures typically settle at around 14°C. But by evening, they drop to around 3°C.

Precipitation

Chamonix-Mont-Blanc in September usually receives high rainfall, averaging around 120 mm for the month. Rain is expected on roughly 15 days.

Average sunshine

The days are predominantly sunny, with an estimated total of around 190 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

In case you lean more towards enjoying temperate temperatures and rain-free days July and August typically offer the most optimal weather. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Chamonix-Mont-Blanc climate page with graphs.

 

Chamonix-Mont-Blanc, monthly averages in September

Min TemperatureMin Temperature 3°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 49%  
PrecipitationPrecipitation 120 mm  
Rainy daysRainy days 15 days  
SunshineSunshine 190 hours  
Percentage SunshinePercentage Sunshine  

Where to go in France in September

Find out more about the weather in France and which places have the best travel conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

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

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Chamonix-Mont-Blanc.

Our site offers climate and forecast data for every country in the world. Are you going to France? On this website you can find historical weather averages for many cities in France. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.