December weather forecastGdynia, Poland
December
Weather in December
December greets Gdynia with the full force of winter, as the mercury drops further, recording an average high of 4.3°C (39.7°F). Snowfall reappears, gracing the city with a white mantle on approximately seven days. The winter chill, while biting, brings an air of festivity to the town, as preparations for the holiday season get underway. While the weather can be quite cold, the warmth of holiday activities provides an enticing item on Gdynia's menu. December’s winter palette wraps up the year-end, setting the stage for the new year in Gdynia.Temperature
In December, the meteorological conditions in Gdynia change slightly, with the average high-temperature moving from a frosty 7.6°C (45.7°F) in November to an icy 4.3°C (39.7°F). In December, Gdynia's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 0.6°C (33.1°F).Humidity
December is the most humid month in Gdynia, with an average relative humidity of 87%.Rainfall
In December, the rain falls for 16 days. Throughout December, 58mm (2.28") of precipitation is accumulated. Throughout the year, in Gdynia, there are 183 rainfall days, and 697mm (27.44") of precipitation is accumulated.Snowfall
Months with snowfall in Gdynia are January through April, October through December. In December, in Gdynia, snow falls for 7 days. Throughout the year, there are 50 snowfall days.Sea temperature
In December, the average sea temperature is 5.9°C (42.6°F).Note: Swimming in 5.9°C (42.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year in Gdynia.On the first day of the month, sunrise is at 07:44 and sunset at 15:25. On the last day of December, sunrise is at 08:07 and sunset at 15:30 CET.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gdynia, Poland
- Average high temperature in December: 4.3°C
The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in December: 0.6°C
The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).
Average humidity in December
Gdynia, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is May (63%).
Average rainfall in December
Gdynia, Poland
- Average rainfall in December: 57.8mm
The wettest month (with the highest rainfall) is August (74.9mm).
The driest month (with the least rainfall) is April (36.6mm).
Average rainfall days in December
Gdynia, Poland
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is November (19 days).
The month with the least rainy days is February (11 days).
Average snowfall days in December
Gdynia, Poland
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is February (13 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Gdynia, Poland
- Average sea temperature in December: 5.9°C
The best month for swimming (with the highest average sea temperature) is August (19.1°C).
The coldest month (with the lowest average sea temperature) is March (2.2°C).
Average daylight in December
Gdynia, Poland
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
