April weather forecast
Olten, Switzerland

April

Weather in April

April is a moderate spring month in Olten, Switzerland, with an average temperature ranging between max 14.3°C (57.7°F) and min 3.1°C (37.6°F).

Temperature

Olten's weather shows a temperature rise with the arrival of April, moving from a chilly 9°C (48.2°F) in March to a moderate 14.3°C (57.7°F). During the month of April, Olten's nighttime temperature lowers to an average of 3.1°C (37.6°F).

Humidity

The months with the lowest humidity are April and July, with an average relative humidity of 78%.

Rainfall

In Olten, during April, the rain falls for 16.3 days and regularly aggregates up to 56mm (2.2") of precipitation. Throughout the year, in Olten, Switzerland, there are 190.8 rainfall days, and 880mm (34.65") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Olten. In Olten, Switzerland, in April, snow falls for 1.3 days, with typically accumulated 46mm (1.81") of snow. Throughout the year, there are 39.9 snowfall days, and 652mm (25.67") of snow is accumulated.

Daylight

The average length of the day in April in Olten is 13h and 38min.
On the first day of the month, sunrise is at 07:05 and sunset at 19:58. On the last day of April, in Olten, sunrise is at 06:12 and sunset at 20:38 CEST.

Sunshine

In April, the average sunshine is 9.1h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In April, the maximum UV index of 3 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What is the average April temperature in Olten?
In Olten, 14.3°C (57.7°F) is the average high-temperature and 3.1°C (37.6°F) is the average low-temperature during April.
What are the least humid months in Olten?
April and July, with an average relative humidity of 78%, are the least humid months in Olten, Switzerland.
What is the average humidity in April in Olten?
In April, the average relative humidity in Olten, Switzerland, is 78%.
How many days does it rain in April in Olten?
In Olten, in April, during 16.3 rainfall days, 56mm (2.2") of precipitation is typically accumulated.
How many days does it snow in April in Olten?
In April, in Olten, Switzerland, it is snowing for 1.3 days. Throughout April, 46mm (1.81") of snow is accumulated.
How many hours of daylight does Olten have in April?
The average day length in April in Olten is 13h and 38min.
When is the sunrise / sunset in April in Olten?
In April, on the first day of the month, sunrise is at 07:05 and sunset at 19:58. On the last day of the month, in Olten, sunrise is at 06:12 and sunset at 20:38 CEST.
How many hours of sunshine does Olten have in April?
In Olten, the average sunshine duration in April is 9.1h.
What is the UV index intensity in April in Olten?
In Olten, Switzerland, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Olten, Switzerland
  • Average high temperature in April: 14.3°C

The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (2.9°C).

  • Average low temperature in April: 3.1°C

The months with the highest average low temperature are July and August (11.8°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).

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

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in April
Olten, Switzerland
  • Average wind speed in April: 7.5km/h

The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).

Average humidity in April
Olten, Switzerland
  • Average humidity in April: 78%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (78%).

Average rainfall in April
Olten, Switzerland
  • Average rainfall in April: 56mm

The wettest month (with the highest rainfall) is May (106mm).
The driest month (with the least rainfall) is September (45mm).

Average rainfall days in April
Olten, Switzerland
  • Average rainfall days in April: 16.3 days

The month with the highest number of rainy days is May (22.4 days).
The month with the least rainy days is February (10.6 days).

Average snowfall in April
Olten, Switzerland
  • Average snowfall in April: 46mm

The month with the highest snowfall is February (153mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in April
Olten, Switzerland
  • Average snowfall days in April: 1.3 days

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Olten, 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 30min).

  • Average sunshine in April: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in April
Olten, Switzerland
  • Average sunshine days in April: 12.2 days

The month with the most sunshine days is October (15 days).
The month with the least sunshine days is May (6.6 days).

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

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in April
Olten, Switzerland
  • Average cloud cover in April: 39

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in April
Olten, Switzerland
  • Average visibility in April: 9km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).

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