May weather forecast
Zermatt, Switzerland

Weather in May

May, the last month of the spring in Zermatt, is another cold month, with an average temperature fluctuating between -2.2°C (28°F) and 4.8°C (40.6°F).

Temperature

In May, the average high-temperature slightly increases from a wintry 1.7°C (35.1°F) in April to a still cold 4.8°C (40.6°F). In Zermatt, the average low-temperature is -2.2°C (28°F).

Humidity

In Zermatt, the average relative humidity in May is 91%.

Rainfall

In May, the rain falls for 18.8 days. Throughout May, 122mm (4.8") of precipitation is accumulated. In Zermatt, during the entire year, the rain falls for 146.2 days and collects up to 991mm (39.02") of precipitation.

Snowfall

January through December are months with snowfall. In Zermatt, during May, snow falls for 9.8 days and regularly aggregates up to 349mm (13.74") of snow. In Zermatt, during the entire year, snow falls for 113.3 days and aggregates up to 3425mm (134.84") of snow.

Daylight

In Zermatt, the average length of the day in May is 14h and 58min.
On the first day of the month, sunrise is at 06:15 and sunset at 20:36. On the last day of May, sunrise is at 05:42 and sunset at 21:11 CEST.

Sunshine

In Zermatt, the average sunshine in May is 6.3h.

UV index

January through May, October and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 1 in May transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Zermatt?

In Zermatt, in May, the average high-temperature is 4.8°C (40.6°F), and the average low-temperature is -2.2°C (28°F).

What is the average humidity in May in Zermatt?

In Zermatt, the average relative humidity in May is 91%.

How much does it rain in Zermatt in May?

In Zermatt, Switzerland, in May, it is raining for 18.8 days, with typically 122mm (4.8") of accumulated precipitation.

How much does it snow in Zermatt in May?

In Zermatt, in May, snow falls for 9.8 days, with typically accumulated 349mm (13.74") of snow.

What is the average length of the day in May in Zermatt?

In Zermatt, the average day length in May is 14h and 58min.

What time are sunrise and sunset in May in Zermatt?

On the first day of May, sunrise is at 06:15 and sunset at 20:36. On the last day of the month, sunrise is at 05:42 and sunset at 21:11 CEST.

How many hours of sunshine does Zermatt have in May?

In Zermatt, the average sunshine duration in May is 6.3h.

What are the months with the lowest UV index in Zermatt?

The months with the lowest UV index in Zermatt are January through May, October and November, with an average maximum UV index of 1.

What is the UV index intensity in May in Zermatt?

In May, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Zermatt, Switzerland

Average temperature in May - Zermatt, Switzerland
  • Average high temperature in May: 4.8°C

The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in May: -2.2°C

The month with the highest average low temperature is July (4.6°C).
The coldest month (with the lowest average low temperature) is January (-13.5°C).

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Average pressure in May
Zermatt, Switzerland

Average pressure in May - Zermatt, Switzerland
  • Average pressure in May: 1015.4mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).

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Average wind speed in May
Zermatt, Switzerland

Average wind speed in May - Zermatt, Switzerland
  • Average wind speed in May: 7.9km/h

The windiest month (with the highest average wind speed) is December (10.3km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).

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Average humidity in May
Zermatt, Switzerland

Average humidity in May - Zermatt, Switzerland
  • Average humidity in May: 91%

The months with the highest relative humidity are March and April (92%).
The months with the lowest relative humidity are July and August (82%).

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Average rainfall in May
Zermatt, Switzerland

Average rainfall in May - Zermatt, Switzerland
  • Average rainfall in May: 122mm

The wettest month (with the highest rainfall) is November (137mm).
The driest month (with the least rainfall) is January (30mm).

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Average rainfall days in May
Zermatt, Switzerland

Average rainfall days in May - Zermatt, Switzerland
  • Average rainfall days in May: 18.8 days

The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is January (1.7 days).

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Average snowfall in May
Zermatt, Switzerland

Average snowfall in May - Zermatt, Switzerland
  • Average snowfall in May: 349mm

The month with the highest snowfall is November (867mm).
The month with the least snowfall is July (1mm).

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Average snowfall days in May
Zermatt, Switzerland

Average snowfall days in May - Zermatt, Switzerland
  • Average snowfall days in May: 9.8 days

The month with the highest number of snowfall days is March (19.2 days).
The month with the least snowfall days is July (0.2 days).

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Average daylight in May /
Average sunshine in May
Zermatt, Switzerland

Average daylight in May / Average sunshine in May - Zermatt, Switzerland
  • Average daylight in May: 14h and 58min

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 43min).

  • Average sunshine in May: 6h and 18min

The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).

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Average sunshine days in May
Zermatt, Switzerland

Average sunshine days in May - Zermatt, Switzerland
  • Average sunshine days in May: 6.2 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (4.6 days).

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Average UV index in May
Zermatt, Switzerland

Average UV index in May - Zermatt, Switzerland
  • Average UV index in May: 1

The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, April, May, October and November (UV index 1).

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Average cloud cover in May
Zermatt, Switzerland

Average cloud cover in May - Zermatt, Switzerland
  • Average cloud cover in May: 65

The month with the most cloud cover is April (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 46).

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Average visibility in May
Zermatt, Switzerland

Average visibility in May - Zermatt, Switzerland
  • Average visibility in May: 6km

The months with the highest visibility are July and August (8km).
The months with the lowest visibility are February, March, April, May and November (6km).

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