April weather forecast
Unterwasser, Switzerland

April

Weather in April

April is a cool spring month in Unterwasser, Switzerland, with an average temperature varying between 12.1°C (53.8°F) and 1.7°C (35.1°F).

Temperature

With the transition into April, Unterwasser experiences an increase in average high-temperatures, moving up from a frosty 6.2°C (43.2°F) in March to a cool 12.1°C (53.8°F). April's nights in Unterwasser observe an average temperature of 1.7°C (35.1°F).

Humidity

In Unterwasser, the average relative humidity in April is 79%.

Rainfall

In Unterwasser, in April, it is raining for 13.6 days, with typically 60mm (2.36") of accumulated precipitation. In Unterwasser, during the entire year, the rain falls for 141.7 days and collects up to 1003mm (39.49") of precipitation.

Snowfall

January through May, August through December are months with snowfall. In Unterwasser, during April, snow falls for 6.3 days and regularly aggregates up to 211mm (8.31") of snow. Throughout the year, there are 90.5 snowfall days, and 3420mm (134.65") of snow is accumulated.

Daylight

In April, the average length of the day in Unterwasser is 13h and 38min.
On the first day of the month, sunrise is at 07:00 and sunset at 19:52. On the last day of April, sunrise is at 06:07 and sunset at 20:32 CEST.

Sunshine

In April, the average sunshine is 9.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 3 during April translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the usual temperature for Unterwasser in April?
In Unterwasser, in April, the average high-temperature is 12.1°C (53.8°F), and the average low-temperature is 1.7°C (35.1°F).
What is the average humidity in April in Unterwasser?
In Unterwasser, Switzerland, the average relative humidity in April is 79%.
How many days does it rain in April in Unterwasser?
In Unterwasser, Switzerland, in April, during 13.6 rainfall days, 60mm (2.36") of precipitation is typically accumulated.
How many days does it snow in April in Unterwasser?
In April, in Unterwasser, it is snowing for 6.3 days. Throughout April, 211mm (8.31") of snow is accumulated.
What is the average length of the day in April in Unterwasser?
The average day length in April is 13h and 38min.
What time are sunrise and sunset in April in Unterwasser?
In April, on the first day of the month, sunrise is at 07:00 and sunset at 19:52. On the last day of the month, in Unterwasser, sunrise is at 06:07 and sunset at 20:32 CEST.
How long on average sun shines in April in Unterwasser?
In April, the average sunshine duration in Unterwasser, Switzerland, is 9.5h.
What is the UV index intensity in April in Unterwasser?
In Unterwasser, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April
Unterwasser, Switzerland
  • Average high temperature in April: 12.1°C

The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.5°C).

  • Average low temperature in April: 1.7°C

The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).

Average pressure in April
Unterwasser, Switzerland
  • Average pressure in April: 1015.6mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in April
Unterwasser, Switzerland
  • Average wind speed in April: 7.2km/h

The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).

Average humidity in April
Unterwasser, Switzerland
  • Average humidity in April: 79%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in April
Unterwasser, Switzerland
  • Average rainfall in April: 60mm

The wettest month (with the highest rainfall) is December (127mm).
The driest month (with the least rainfall) is September (38mm).

Average rainfall days in April
Unterwasser, Switzerland
  • Average rainfall days in April: 13.6 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in April
Unterwasser, Switzerland
  • Average snowfall in April: 211mm

The month with the highest snowfall is January (813mm).
The months with the least snowfall are June and July (0mm).

Average snowfall days in April
Unterwasser, Switzerland
  • Average snowfall days in April: 6.3 days

The month with the highest number of snowfall days is January (18.4 days).
The month with the least snowfall days is July (0 days).

Average daylight in April /
Average sunshine in April
Unterwasser, Switzerland
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in April: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in April
Unterwasser, Switzerland
  • Average sunshine days in April: 11.3 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in April
Unterwasser, Switzerland
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in April
Unterwasser, Switzerland
  • Average cloud cover in April: 37

The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in April
Unterwasser, Switzerland
  • Average visibility in April: 8km

The months with the highest visibility are June and August (9km).
The months with the lowest visibility are January, February and December (7km).

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