December weather forecastOstrowy, Poland

December

Weather in December

December, the first month of the winter in Ostrowy, is still a cold month, with an average temperature varying between 2.6°C (36.7°F) and -0.5°C (31.1°F).

Temperature

Ostrowy's December weather shows a modest shift in high-temperatures, falling from November's chilly 7.4°C (45.3°F) to a wintry 2.6°C (36.7°F). Ostrowy's nights throughout December are marked by an average low temperature of -0.5°C (31.1°F), a minor drop from the day's high.

Humidity

In December, the average relative humidity in Ostrowy is 87%.

Rainfall

In Ostrowy, during December, the rain falls for 9.6 days and regularly aggregates up to 18mm (0.71") of precipitation. In Ostrowy, during the entire year, the rain falls for 137.4 days and collects up to 321mm (12.64") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Ostrowy, in December, during 7 snowfall days, 31mm (1.22") of snow is typically accumulated. In Ostrowy, during the entire year, snow falls for 33.1 days and aggregates up to 162mm (6.38") of snow.

Daylight

The month with the shortest days is December, with an average of 7h and 48min of daylight.
On the first day of the month, sunrise is at 07:30 and sunset at 15:34. On the last day of December, in Ostrowy, sunrise is at 07:52 and sunset at 15:40 CET.

Sunshine

The average sunshine in December is 3.4h.

UV index

The month with the lowest UV index in Ostrowy is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 1 suggests these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

During December, Ostrowy experiences an average high-temperature of 2.6°C (36.7°F) and a low-temperature of -0.5°C (31.1°F).

In Ostrowy, the average relative humidity in December is 87%.

In December, the rain falls for 9.6 days. Throughout December, 18mm (0.71") of precipitation is accumulated.

In December, in Ostrowy, it is snowing for 7 days. Throughout December, 31mm (1.22") of snow is accumulated.

December has the shortest days of the year, with an average of 7h and 48min of daylight.

In December, the average day length is 7h and 47min.

In December, on the first day of the month, sunrise is at 07:30 and sunset at 15:34. On the last day of the month, in Ostrowy, Poland, sunrise is at 07:52 and sunset at 15:40 CET.

The average sunshine duration in December in Ostrowy is 3.4h.

The month with the lowest UV index in Ostrowy is December, with an average maximum UV index of 1.

In Ostrowy, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low 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 December
Ostrowy, Poland

  • Average high temperature in December: 2.6°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 (0.4°C).

  • Average low temperature in December: -0.5°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average pressure in December
Ostrowy, Poland

  • Average pressure in December: 1016.1mbar

The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).

Average wind speed in December
Ostrowy, Poland

  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

Average humidity in December
Ostrowy, Poland

  • Average humidity in December: 87%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Ostrowy, Poland

  • Average rainfall in December: 18mm

The wettest months (with the highest rainfall) are June and July (46mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in December
Ostrowy, Poland

  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in December
Ostrowy, Poland

  • Average snowfall in December: 31mm

The month with the highest snowfall is January (49mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Ostrowy, Poland

  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ostrowy, Poland

  • Average daylight in December: 7h and 48min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in December: 3h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Ostrowy, Poland

  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in December
Ostrowy, Poland

  • Average UV index in December: 1

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

Average cloud cover in December
Ostrowy, Poland

  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Ostrowy, Poland

  • Average visibility in December: 8km

The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).