April weather forecastKostry, Poland

April

Weather in April

April in Kostry, Poland, is a moderate spring month, with an average temperature fluctuating between 4.5°C (40.1°F) and 13.7°C (56.7°F).

Temperature

Kostry in April shows a temperature shift, moving from an average high of a frosty 6.3°C (43.3°F) in March to a moderate 13.7°C (56.7°F). Kostry records an average nighttime low of 4.5°C (40.1°F) in April.

Humidity

In Kostry, the average relative humidity in April is 69%.

Rainfall

In Kostry, Poland, in April, it is raining for 12.8 days, with typically 24mm (0.94") of accumulated precipitation. In Kostry, during the entire year, the rain falls for 144.9 days and collects up to 439mm (17.28") of precipitation.

Snowfall

January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.8 snowfall days, in April, Kostry aggregates 14mm (0.55") of snow. Throughout the year, there are 61.8 snowfall days, and 481mm (18.94") of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 55min.
On the first day of April in Kostry, sunrise is at 06:02 and sunset at 19:02. On the last day of the month, sunrise is at 05:00 and sunset at 19:50 CEST.

Sunshine

In Kostry, the average sunshine in April is 8.3h.

UV index

In Kostry, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In April, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

The high-temperature, in April, in Kostry, is 13.7°C (56.7°F), while the low-temperature averages to 4.5°C (40.1°F).

In April, the average relative humidity is 69%.

In Kostry, in April, during 12.8 rainfall days, 24mm (0.94") of precipitation is typically accumulated.

April is the last month it regularly snows in Kostry. During 1.8 snowfall days, in April, Kostry aggregates 14mm (0.55") of snow.

In Kostry, Poland, the average day length in April is 13h and 55min.

On the first day of April in Kostry, Poland, sunrise is at 06:02 and sunset at 19:02. On the last day of the month, sunrise is at 05:00 and sunset at 19:50 CEST.

In Kostry, Poland, the average sunshine duration in April is 8.3h.

In Kostry, Poland, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Kostry, Poland

  • Average high temperature in April: 13.7°C

The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in April: 4.5°C

The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).

Average pressure in April
Kostry, Poland

  • Average pressure in April: 1015.7mbar

The month with the highest atmospheric pressure is October (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).

Average wind speed in April
Kostry, Poland

  • Average wind speed in April: 12km/h

The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in April
Kostry, Poland

  • Average humidity in April: 69%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).

Average rainfall in April
Kostry, Poland

  • Average rainfall in April: 24mm

The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is November (20mm).

Average rainfall days in April
Kostry, Poland

  • Average rainfall days in April: 12.8 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in April
Kostry, Poland

  • Average snowfall in April: 14mm

The month with the highest snowfall is January (164mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in April
Kostry, Poland

  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Kostry, Poland

  • Average daylight in April: 13h and 54min

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

  • Average sunshine in April: 8h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).

Average sunshine days in April
Kostry, Poland

  • Average sunshine days in April: 14.4 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is January (7.2 days).

Average UV index in April
Kostry, 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 and December (UV index 1).

Average cloud cover in April
Kostry, Poland

  • Average cloud cover in April: 46

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in April
Kostry, Poland

  • Average visibility in April: 9km

The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).