Chamonix-Mont-Blanc weather and climate
Chamonix-Mont-Blanc weather and climate
Day
11 °C
Night
2 °C
Precipitation
126 mm
in month
Rainy days
13 days
in month
Daylight
15 hours
average
Sunshine
6 hours
average
Humidity
77 %
Weather charts for Chamonix-Mont-Blanc
We make the most from 40 years of historical weather data to predict the best weather conditions.
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Weather overview for Chamonix-Mont-Blanc
Weather overview
Chamonix-Mont-Blanc (France) in general has a cold climate. The day temperatures range from 0.3 °C (32.5 °F) in January to 17.4 °C (63.3 °F) in July. Temperatures during the night go from -6.7 °C (19.9 °F) in February to 8.0 °C (46.4 °F) in July. The driest month is February with just 10 days of rain, on the contrary, the month when it rains the most is May with 13 days of rain.
January weather
The sea temperature is on its maximum, with its value of 0.0 °C (32.0 °F) in Chamonix-Mont-Blanc, on the contrary the day temperature reaches its minimum in January. The beginning of the descent of the rainfall amount could be noticed in January. The night temperature continues to descent, the value of this measure is -6.6 °C (20.1 °F).
February weather
The descent of the rainfall amount can be observed, with its value of 113 mm (4.43 in) in Chamonix-Mont-Blanc, while the minimum of the number of rainy days is observable, with its value of 10 days. The night temperature reaches its minimum, with its value of -6.7 °C (19.9 °F). The number of sun hours (without clouds) rise's start could be observed in February.
March weather
The night temperature starts to rise, with its value being -5.2 °C (22.6 °F) in Chamonix-Mont-Blanc, and the day temperature starts to rise as well, its value is 3.0 °C (37.4 °F). The rise of the number of sun hours (without clouds) can be observed, with its value being 5 hours. The wind speed reaches its maximum.
April weather
The rise of the day temperature can be observed, the value of this measure is 5.6 °C (42.1 °F) in Chamonix-Mont-Blanc, and the rise of the night temperature can be observed as well, with its value being -2.7 °C (27.1 °F). The rise of the number of sun hours (without clouds) can be observed, with its value of 6 hours.
May weather
The day temperature continues to rise, the value of this measure is 10.6 °C (51.1 °F) in Chamonix-Mont-Blanc, and the night temperature continues to rise too, with its value of 1.8 °C (35.2 °F). The maximum of the number of rainy days can be noticed, the value of this measure is 13 days, while the rainfall amount rise's start could be observed in May. The humidity is on its maximum in May.
June weather
The tourist season is about to start this month in Chamonix-Mont-Blanc. The rise of the day temperature can be observed, the value of this measure is 14.4 °C (57.9 °F), and the night temperature continues to rise too, with its value being 5.1 °C (41.2 °F). The beginning of the descent of the rainfall amount could be noticed in June. The maximum of the day length can be noticed in this month. The number of sun hours (without clouds) rise's start could be observed.
July weather
The tourist season continues this month in Chamonix-Mont-Blanc. The beginning of the descent of the number of rainy days could be noticed in this month. The night temperature is on its maximum, the value of this measure is 8.0 °C (46.4 °F), and the maximum of the day temperature is observable too in July. The maximum of the number of sun hours (without clouds) can be noticed, its value is 8 hours.
August weather
The ongoing tourist season is noticeable in Chamonix-Mont-Blanc. The rainfall amount starts to rise, its value is 105 mm (4.14 in). The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value being 7 hours. The minimum of the wind speed can be noticed, with its value being 3.2.
September weather
The number of rainy days starts to descent, with its value being 10 days in Chamonix-Mont-Blanc, while the rainfall amount reaches its minimum, with its value of 98 mm (3.85 in). The day temperature descent's start could be observed, and the beginning of the descent of the night temperature could be noticed as well in September. The number of sun hours (without clouds) continues to descent, the value of this measure is 6 hours.
October weather
The rainfall amount rise's start could be observed in this month in Chamonix-Mont-Blanc. The night temperature continues to descent, its value is 2.1 °C (35.8 °F), and the day temperature continues to descent too. The number of sun hours (without clouds) continues to descent, with its value being 5 hours.
November weather
The rainfall amount rises similarly to the previous month, with its value of 135 mm (5.31 in) in Chamonix-Mont-Blanc. The night temperature descents similarly to the previous month, the value of this measure is -2.7 °C (27.1 °F), and the descent of the day temperature can be observed as well, with its value of 3.3 °C (37.9 °F). The number of sun hours (without clouds) continues to descent, with its value being 4 hours.
December weather
The descent of the day temperature can be observed in Chamonix-Mont-Blanc, and the night temperature continues to descent too. The maximum of the rainfall amount is observable. The number of sun hours (without clouds) is on its minimum, with its value being 3 hours. The humidity reaches its minimum in this month. The minimum of the day length is observable, with its value of 9 hours.
FAQs
Is May part of the dry season in Chamonix-Mont-Blanc?
No, May is not a dry month in Chamonix-Mont-Blanc, expect rain approximately 13 days in a month.
Is June a good month to visit Chamonix-Mont-Blanc?
June is a good month to visit Chamonix-Mont-Blanc. A relatively low temperature of 14.4 °C (57.9 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 5.1 °C (41.2 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the temperature in Chamonix-Mont-Blanc during the day in July?
The average daily temperature in Chamonix-Mont-Blanc in July is 17.4 °C (63.3 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
Is August part of the wet season in Chamonix-Mont-Blanc?
No, there is no wet season in August in Chamonix-Mont-Blanc - you can expect 11 days of rain during the month.
How windy is it in September in Chamonix-Mont-Blanc?
An average wind scale that can be expected in September in Chamonix-Mont-Blanc is 3.3.
How many rainy days can I expect in Chamonix-Mont-Blanc in October?
In October in Chamonix-Mont-Blanc, we can expect 10 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.3 days of the week, or in general - 33 % days.