Climate and monthly weather forecast
Chamonix, France

Weather in January

January, like December, is a freezing cold winter month in Chamonix, France, with an average temperature fluctuating between -2.3°C (27.9°F) and -11.4°C (11.5°F). With an average high-temperature of -2.3°C (27.9°F) and an average low-temperature of -11.4°C (11.5°F), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Chamonix, is also a subzero cold month, with an average temperature varying between -2.1°C (28.2°F) and -11.3°C (11.7°F). In February, the average high-temperature is relatively the same as in January - a still freezing cold -2.1°C (28.2°F). Weather in February »

Weather in March

March, the first month of the spring in Chamonix, is a cold month, with temperature in the range of an average high of 0.8°C (33.4°F) and an average low of -7.4°C (18.7°F). In March, the average high-temperature is essentially the same as in February - a wintry 0.8°C (33.4°F). Weather in March »

Weather in April

April, the same as March, is another cold spring month in Chamonix, France, with an average temperature varying between 5.3°C (41.5°F) and -2.8°C (27°F). In Chamonix, the average high-temperature in April slightly increases from 0.8°C (33.4°F) in March to a still wintry 5.3°C (41.5°F). Weather in April »

Weather in May

May, the last month of the spring in Chamonix, is a frosty month, with an average temperature varying between 0.5°C (32.9°F) and 8.8°C (47.8°F). In Chamonix, the average high-temperature in May slightly increases from a cold 5.3°C (41.5°F) in April to a chilly 8.8°C (47.8°F). Weather in May »

Weather in June

The first month of the summer, June, is a moderate month in Chamonix, France, with an average temperature ranging between max 14.3°C (57.7°F) and min 4.6°C (40.3°F). In June, the average high-temperature rises from a chilly 8.8°C (47.8°F) in May to a moderate 14.3°C (57.7°F). Weather in June »

Weather in July

July is an enjoyable summer month in Chamonix, France, with temperature in the range of an average low of 6.7°C (44.1°F) and an average high of 16.8°C (62.2°F). The warmest months are July and August, with an average high-temperature of 16.8°C (62.2°F). Weather in July »

Weather in August

The last month of the summer, August, is another comfortable month in Chamonix, France, with an average temperature varying between 16.8°C (62.2°F) and 6.4°C (43.5°F). The warmest months are July and August, with an average high-temperature of 16.8°C (62.2°F). Weather in August »

Weather in September

September, the first month of the autumn in Chamonix, is still a cool month, with an average temperature varying between 12.8°C (55°F) and 3.6°C (38.5°F). In Chamonix, the average high-temperature in September marginally drops from a comfortable 16.8°C (62.2°F) in August to a fresh 12.8°C (55°F). Weather in September »

Weather in October

October, the same as September, in Chamonix, France, is another chilly autumn month, with an average temperature varying between 8.6°C (47.5°F) and 0.2°C (32.4°F). In October, the average high-temperature marginally drops from a fresh 12.8°C (55°F) in September to a chilly 8.6°C (47.5°F). Weather in October »

Weather in November

November, the last month of the autumn in Chamonix, is also a wintry month, with temperature in the range of an average high of 2.7°C (36.9°F) and an average low of -4.5°C (23.9°F). In November, the average high-temperature drops from a frosty 8.6°C (47.5°F) in October to a cold 2.7°C (36.9°F). Weather in November »

Weather in December

December, the first month of the winter in Chamonix, is still a freezing cold month, with an average temperature fluctuating between -1°C (30.2°F) and -9.5°C (14.9°F). In December, the average high-temperature slightly decreases from a wintry 2.7°C (36.9°F) in November to a subzero cold -1°C (30.2°F). Weather in December »
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FAQ

What is the coldest month in Chamonix?

With an average high-temperature of -2.3°C (27.9°F) and an average low-temperature of -11.4°C (11.5°F), January is the coldest month in Chamonix.

How much does it rain in Chamonix?

Throughout the year, there are 132.8 rainfall days, and 461mm (18.15") of precipitation is accumulated.

When does it snow in Chamonix?

January through May, October through December are months with snowfall.

How much does it snow in Chamonix?

In Chamonix, France, during the entire year, snow falls for 56.7 days and aggregates up to 924mm (36.38") of snow.

When is the lowest UV index in Chamonix?

January through March and November, with an average maximum UV index of 1, are months with the lowest UV index in Chamonix, France.

What is the most humid month in Chamonix?

With an average relative humidity of 91%, March is the most humid month in Chamonix.

When is Daylight Saving Time (DST) in Chamonix?

On Sunday, 27. March 2022, at 02:00, Daylight Saving Time starts, and the time zone changes from CET to CEST. Daylight Saving Time ends on Sunday, 30. October 2022, at 03:00, and the time zone reverts from CEST to CET.

When it does not snow in Chamonix?

In Chamonix, snow does not fall in June through September.

When are the longest days in Chamonix?

The month with the longest days is June, with an average of 15h and 41min of daylight.

When is the highest UV index in Chamonix?

The months with the highest UV index in Chamonix, France, are June and July, with an average maximum UV index of 4.

What are the warmest months in Chamonix?

Warmest months in Chamonix are July and August, with an average high-temperature of 16.8°C (62.2°F).

What month has the most sunshine in Chamonix?

July has the most sunshine of the year in Chamonix, France, with an average of 10.3h of sunshine.

What is the least humid month in Chamonix?

August is the least humid month, with an average relative humidity of 77%.

What is the driest month in Chamonix?

The month with the least rainfall in Chamonix is September, when the rain falls for 11.4 days and typically collects 15mm (0.59") of precipitation.

What is the rainiest month in Chamonix?

December is the month with the most rainfall. Rain falls for 7.7 days and accumulates 72mm (2.83") of precipitation.

When does it snow the most in Chamonix?

December is the month with the most snowfall. Snow falls for 10.4 days and accumulates 245mm (9.65") of snow.

What is the month with the shortest days in Chamonix?

The month with the shortest days in Chamonix is December, with an average of 8h and 44min of daylight.

What is the month with the least sunshine in Chamonix?

With an average of 4.8h of sunshine, December has the least sunshine of the year in Chamonix, France.

Average temperature
Chamonix, France

Average temperature - Chamonix, France

The warmest months (with the highest average high temperature) are July and August (16.8°C).
The month with the lowest average high temperature is January (-2.3°C).

The month with the highest average low temperature is July (6.7°C).
The coldest month (with the lowest average low temperature) is January (-11.4°C).

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Average pressure
Chamonix, France

Average pressure - Chamonix, France

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

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Average wind speed
Chamonix, France

Average wind speed - Chamonix, France

The windiest month (with the highest average wind speed) is December (8.4km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).

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Average rainfall
Chamonix, France

Average rainfall - Chamonix, France

The wettest month (with the highest rainfall) is December (72mm).
The driest month (with the least rainfall) is September (15mm).

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Average rainfall days
Chamonix, France

Average rainfall days - Chamonix, France

The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall
Chamonix, France

Average snowfall - Chamonix, France

The month with the highest snowfall is December (245mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days
Chamonix, France

Average snowfall days - Chamonix, France

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Chamonix, France

Average daylight / Average sunshine - Chamonix, France

The month with the longest days is June (Average daylight: 15h and 41min).
The month with the shortest days is December (Average daylight: 8h and 44min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days
Chamonix, France

Average sunshine days - Chamonix, France

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index
Chamonix, France

Average UV index - Chamonix, France

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March and November (UV index 1).

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Average visibility
Chamonix, France

Average visibility - Chamonix, France

The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).

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