April weather forecast
Kostera, Poland

April

Weather in April

April in Kostera, Poland, is a refreshing spring month, with an average temperature ranging between min 4.8°C (40.6°F) and max 13.9°C (57°F).

Temperature

Kostera's weather in April presents a rise in the average high-temperature, moving from a frosty 6.9°C (44.4°F) in March to a mild 13.9°C (57°F). In Kostera, April is marked by an average low-temperature of 4.8°C (40.6°F).

Humidity

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

Rainfall

In Kostera, Poland, in April, it is raining for 14.2 days, with typically 33mm (1.3") of accumulated precipitation. In Kostera, during the entire year, the rain falls for 158.9 days and collects up to 516mm (20.31") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.8 snowfall days, in April, Kostera aggregates 12mm (0.47") of snow. Throughout the year, there are 58 snowfall days, and 495mm (19.49") of snow is accumulated.

Daylight

In Kostera, the average length of the day in April is 13h and 50min.
On the first day of the month, sunrise is at 06:11 and sunset at 19:09. On the last day of April, in Kostera, sunrise is at 05:12 and sunset at 19:55 CEST.

Sunshine

In April, the average sunshine in Kostera is 8.5h.

UV index

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during April translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Frequently asked questions

What is the temperature in April in Kostera?
In April, in Kostera, the average high-temperature is 13.9°C (57°F), and the average low-temperature is 4.8°C (40.6°F).
What are the least humid months in Kostera?
April and August, with an average relative humidity of 70%, are the least humid months.
What is the average humidity in April in Kostera?
In Kostera, Poland, the average relative humidity in April is 70%.
How many days does it rain in April in Kostera?
In April, the rain falls for 14.2 days. Throughout April, 33mm (1.3") of precipitation is accumulated.
What is the last month it snows in Kostera?
April is the last month it regularly snows in Kostera, Poland. During 1.8 snowfall days, in April, Kostera aggregates 12mm (0.47") of snow.
What is the average length of the day in April in Kostera?
The average day length in April in Kostera, Poland, is 13h and 50min.
When are sunrise and sunset in April in Kostera?
In April, on the first day of the month, sunrise is at 06:11 and sunset at 19:09. On the last day of the month, in Kostera, sunrise is at 05:12 and sunset at 19:55 CEST.
How many hours of sunshine does Kostera have in April?
The average sunshine duration in April in Kostera is 8.5h.
How high is the UV index in April in Kostera?
The average daily maximum UV index in April in Kostera is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Kostera, Poland
  • Average high temperature in April: 13.9°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in April: 4.8°C

The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average pressure in April
Kostera, Poland
  • Average pressure in April: 1015.8mbar

The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).

Average wind speed in April
Kostera, Poland
  • Average wind speed in April: 12.8km/h

The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

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

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and August (70%).

Average rainfall in April
Kostera, Poland
  • Average rainfall in April: 33mm

The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is November (27mm).

Average rainfall days in April
Kostera, Poland
  • Average rainfall days in April: 14.2 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (7 days).

Average snowfall in April
Kostera, Poland
  • Average snowfall in April: 12mm

The month with the highest snowfall is January (162mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in April
Kostera, Poland
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Kostera, Poland
  • Average daylight in April: 13h and 5min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in April: 8h and 3min

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 54min).

Average sunshine days in April
Kostera, Poland
  • Average sunshine days in April: 12.9 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (7.3 days).

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).

Average cloud cover in April
Kostera, Poland
  • Average cloud cover in April: 43

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).

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

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

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