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Chamonix-Mont-Blanc Temperatures: Monthly Averages and Year-Round Insights

On this page, we’ll explore Chamonix-Mont-Blanc’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in France.

Monthly Temperature Averages

Visitors to Chamonix-Mont-Blanc will encounter a climate influenced by big temperature differences across the year. On average, maximum daytime temperatures range from a pleasant 18°C in July to a very cold -3°C in January. Nighttime temperatures can drop, with averages reaching -12°C in January.

The chart below illustrates the average maximum day and minimum night temperatures in Chamonix-Mont-Blanc by month:

The lowest temperatures typically occur between 4 AM and 6 AM, while the peak temperatures are generally observed around 3 PM, coinciding with the sun’s strongest heating effect. July, the city’s warmest month, enjoys 275 hours of sunshine.

The chart below shows the average temperature throughout the year:

January, the city’s coldest month, sees about 151 mm of snowfall spread over roughly 17 days. It records 70 hours of sunshine of sunshine.

Annual Temperatures in France Compared

The map below shows the annual temperature across France. You can also select the different months in case you are interested in a specific month.

Annual
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Annual average
temperature: 8°C

More information

Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 32°C. Warm: 25°C to 32°C. Pleasant: 18°C to 25°C Moderate: 10°C to 18°C. Cold: 5°C to 10°C. Very cold: lower than 5°C

Chamonix-Mont-Blanc Temperatures Compared World Wide

Chamonix-Mont-Blanc’s average annual maximum temperature is 8°C. Let’s compare this with some popular tourist destinations:

Seville, Spain, stands out with its warm Mediterranean climate and an average annual temperature of 23°C.

In contrast, in Zermatt, Switzerland, the average annual temperature is significantly lower at 4°C, with mild summers and very cold winters.

In Seoul, South Korea, the average annual temperature is 18°C, featuring distinct seasons.

In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters.

How are these Temperatures Measured?

Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.

This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.

Temperatures in the Mountains

Although not all regions have mountains, elevated areas exhibit distinct temperature variations.

  • Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
  • Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.

For more detailed information about Chamonix-Mont-Blanc’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Chamonix-Mont-Blanc climate page.


Current temperature in Chamonix-Mont-Blanc

Friday
21 Feb
Partly cloudy
Partly cloudy
9°C
0 mm
Saturday
22 Feb
Cloudy
Cloudy
8°C
0 mm
Sunday
23 Feb
Cloudy
Cloudy
8°C
0.1 mm

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.

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