April weather forecast
Sierki, Poland

April

Weather in April

April is a moderate spring month in Sierki, Poland, with an average temperature varying between 3.8°C (38.8°F) and 13.3°C (55.9°F).

Temperature

April's arrival brings a temperature shift, moving from a cold 5.8°C (42.4°F) in March to a moderate 13.3°C (55.9°F). In the month of April, the nighttime temperature dips to a steady average of 3.8°C (38.8°F).

Humidity

April and August, with an average relative humidity of 70%, are the least humid months.

Rainfall

The month with the least rainfall is April, when the rain falls for 13.5 days and typically collects 27mm (1.06") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 2.5 snowfall days, in April, Sierki aggregates 20mm (0.79") of snow. In Sierki, during the entire year, snow falls for 71.5 days and aggregates up to 596mm (23.46") of snow.

Daylight

In Sierki, the average length of the day in April is 14h and 1min.
On the first day of April, sunrise is at 06:01 and sunset at 19:04. On the last day of the month, sunrise is at 04:56 and sunset at 19:56 CEST.

Sunshine

In April, the average sunshine is 8.3h.

UV index

In Sierki, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during April translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

What are the temperatures in April?
An average high-temperature, in April, in Sierki, is 13.3°C (55.9°F) and the average low-temperature is 3.8°C (38.8°F).
What is the least humid month in Sierki?
April and August, with an average relative humidity of 70%, are the least humid months.
What is the average humidity in April?
In Sierki, the average relative humidity in April is 70%.
What is the driest month?
April is the month with the least rainfall. Rain falls for 13.5 days and accumulates 27mm (1.06") of precipitation.
How many days does it rain in April?
In April, the rain falls for 13.5 days. Throughout April, 27mm (1.06") of precipitation is accumulated.
What is the last month it snows?
April is the last month it regularly snows. During 2.5 snowfall days, in April, Sierki aggregates 20mm (0.79") of snow.
What is the average length of the day in April?
In April, the average day length is 14h and 1min.
What time are sunrise and sunset in April?
On the first day of April, sunrise is at 06:01 and sunset at 19:04. On the last day of the month, sunrise is at 04:56 and sunset at 19:56 CEST.
How many hours of sunshine does Sierki have in April?
The average sunshine duration in April is 8.3h.
What is the UV index reading in April in Sierki?
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Sierki, Poland
  • Average high temperature in April: 13.3°C

The warmest months (with the highest average high temperature) are July and August (24.2°C).
The month with the lowest average high temperature is January (-1.5°C).

  • Average low temperature in April: 3.8°C

The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).

Average pressure in April
Sierki, Poland
  • Average pressure in April: 1015.6mbar

The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).

Average wind speed in April
Sierki, Poland
  • Average wind speed in April: 11.5km/h

The windiest month (with the highest average wind speed) is December (13.2km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).

Average humidity in April
Sierki, Poland
  • Average humidity in April: 70%

The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).

Average rainfall in April
Sierki, Poland
  • Average rainfall in April: 27mm

The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is April (27mm).

Average rainfall days in April
Sierki, Poland
  • Average rainfall days in April: 13.5 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in April
Sierki, Poland
  • Average snowfall in April: 20mm

The month with the highest snowfall is January (192mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in April
Sierki, Poland
  • Average snowfall days in April: 2.5 days

The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Sierki, Poland
  • Average daylight in April: 14h and 0min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in April: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 12min).

Average sunshine days in April
Sierki, Poland
  • Average sunshine days in April: 13.3 days

The month with the most sunshine days is October (15.5 days).
The months with the least sunshine days are January and February (6.8 days).

Average UV index in April
Sierki, Poland
  • Average UV index in April: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in April
Sierki, Poland
  • Average cloud cover in April: 45

The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in April
Sierki, Poland
  • Average visibility in April: 9km

The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).

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