May weather forecast
Chamonix, France

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Weather in May

May in Chamonix sees a consistent rise in temperatures and longest daylight hours in the year, marking the arrival of late spring. The town dresses up in lush green as the last traces of the winter snow melt away. Expect the highest temperatures during the day to touch 8.8°C (47.8°F). A plethora of spring-related festivities fill up the local calendar, as Chamonix soaks in the sun before the arrival of summer.

Temperature

Chamonix's May weather indicates a minor increase in high-temperatures, edging from April's icy 5.3°C (41.5°F) to a chilly 8.8°C (47.8°F). Chamonix's average low-temperature for the month of May records at a cold 0.5°C (32.9°F).

Humidity

The average relative humidity in May is 86%.

Rainfall

In May, the rain falls for 15.3 days. Throughout May, 58mm (2.28") of precipitation is accumulated. In Chamonix, during the entire year, the rain falls for 132.8 days and collects up to 461mm (18.15") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Chamonix, France. May is the last month it regularly snows. During 1.3 snowfall days, in May, Chamonix aggregates 18mm (0.71") of snow. Throughout the year, in Chamonix, there are 56.7 snowfall days, and 924mm (36.38") of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 58min.
On the first day of the month, sunrise is at 06:18 and sunset at 20:40. On the last day of May, sunrise is at 05:45 and sunset at 21:14 CEST.

Sunshine

In Chamonix, France, the average sunshine in May is 8.6h.

UV index

In Chamonix, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, a regular UV index of 3 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Chamonix in May?

In May, the average high-temperature and low-temperature in Chamonix, France, are 8.8°C (47.8°F) and 0.5°C (32.9°F) respectively.

What is the average humidity in May in Chamonix?

The average relative humidity in May is 86%.

How many days does it rain in May in Chamonix?

In Chamonix, in May, during 15.3 rainfall days, 58mm (2.28") of precipitation is typically accumulated.

What is the last month it snows in Chamonix?

May is the last month it regularly snows. During 1.3 snowfall days, in May, Chamonix aggregates 18mm (0.71") of snow.

How many hours of daylight does Chamonix have in May?

The average day length in May in Chamonix is 14h and 58min.

When are sunrise and sunset in May in Chamonix?

In May, on the first day of the month, sunrise is at 06:18 and sunset at 20:40. On the last day of the month, in Chamonix, sunrise is at 05:45 and sunset at 21:14 CEST.

How long on average sun shines in May in Chamonix?

The average sunshine duration in May is 8.6h.

What is the UV index intensity in May in Chamonix?

In Chamonix, France, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Chamonix, France

Average temperature in May - Chamonix, France
  • Average high temperature in May: 8.8°C

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).

  • Average low temperature in May: 0.5°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 in May
Chamonix, France

Average pressure in May - Chamonix, France
  • Average pressure in May: 1015.6mbar

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 in May
Chamonix, France

Average wind speed in May - Chamonix, France
  • Average wind speed in May: 7.3km/h

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 humidity in May
Chamonix, France

Average humidity in May - Chamonix, France
  • Average humidity in May: 86%

The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is August (77%).

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Average rainfall in May
Chamonix, France

Average rainfall in May - Chamonix, France
  • Average rainfall in May: 58mm

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 in May
Chamonix, France

Average rainfall days in May - Chamonix, France
  • Average rainfall days in May: 15.3 days

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 in May
Chamonix, France

Average snowfall in May - Chamonix, France
  • Average snowfall in May: 18mm

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 in May
Chamonix, France

Average snowfall days in May - Chamonix, France
  • Average snowfall days in May: 1.3 days

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 in May /
Average sunshine in May
Chamonix, France

Average daylight in May / Average sunshine in May - Chamonix, France
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 8h and 4min

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 in May
Chamonix, France

Average sunshine days in May - Chamonix, France
  • Average sunshine days in May: 11.4 days

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 in May
Chamonix, France

Average UV index in May - Chamonix, France
  • Average UV index in May: 3

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 cloud cover in May
Chamonix, France

Average cloud cover in May - Chamonix, France
  • Average cloud cover in May: 50

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in May
Chamonix, France

Average visibility in May - Chamonix, France
  • Average visibility in May: 7km

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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Chamonix, France

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