Climate - Swinoujscie (Poland)

The climate of Swinoujscie is Baltic, that is to say, relatively continental, with cold winters and mild summers.
Swinoujscie (Swinemünde in German) is located on the Baltic coast, in the West Pomeranian Voivodeship, north of Szczecin and on the border with Germany.
Winter is cold and gray. Snowfalls are frequent, but generally not abundant.
Sometimes, cold waves from Siberia can occur, and the temperatures can drop to -15 °C (5 °F) or below. The temperature dropped to -22.8 °C (-9 °F) in February 1940 and in February 1956.
In summer, the temperatures are pleasant and suitable for outdoor activities, although sometimes there can be rains and thunderstorms.
Every now and then (and more often in recent years due to global warming), there can be short heat waves, sometimes only a day or two, with maximum temperatures reaching or exceeding 30 °C (86 °F). The temperature reached 38 °C (100 °F) in late June 2019.

Best Time

The best time to visit Swinoujscie runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.

Swinoujscie - Climate data

In Swinoujscie, the average temperature of the coldest month (January) is of 0.8 °C (33.4 °F), that of the warmest month (August) is of 18.6 °C (65.5 °F). Here are the average temperatures.
In Swinoujscie, precipitation amounts to 585 millimeters (23 inches) per year: so, it is at an intermediate level. It ranges from 30 mm (1.2 in) in the driest month (April) to 75 mm (3 in) in the wettest one (July). Here is the average precipitation.
At Swinoujscie, the sea temperature ranges from 3 °C (37 °F) in February to 18.5 °C (65 °F) in August. Here are the average sea temperatures.
In Swinoujscie, there are on average around 1810 sunshine hours per year. Here are the average hours of sunshine per day.

Swinoujscie - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Swinoujscie is usually cold. The average temperature is of 0.8 °C (33 °F), with a minimum of -1.3 °C (29.7 °F) and a maximum of 2.9 °C (37.2 °F).
On the coldest nights of the month, the temperature usually drops to around -9.5 °C (14.5 °F). However, it dropped to -19.9 °C (-3.8 °F) in January 2006.
On the warmest days of the month, the temperature usually reaches around 9 °C (48.5 °F). However, it reached 13.8 °C (56.8 °F) in January 1991.
Precipitation amounts to 45 mm (1.8 in), distributed over 10 days.
The day lasts on average 8 hours and 5 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 16% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 4 °C (39.5 °F). Therefore, the sea is very cold for swimming.

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In February, the weather in Swinoujscie is usually cold. The average temperature is of 1.6 °C (35 °F), with a minimum of -0.8 °C (30.6 °F) and a maximum of 4 °C (39.2 °F).
On the coldest nights of the month, the temperature usually drops to around -8 °C (18 °F). However, it dropped to -22.2 °C (-8 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 10.5 °C (51.5 °F). However, it reached 16.1 °C (61 °F) in February 2000.
Precipitation amounts to 35 mm (1.4 in), distributed over 9 days.
The day lasts on average 9 hours and 50 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 3 °C (37.5 °F). Therefore, the sea is very cold for swimming.

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In March, the weather in Swinoujscie is usually quite cold. The average temperature is of 4.1 °C (39 °F), with a minimum of 0.9 °C (33.6 °F) and a maximum of 7.3 °C (45.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -5 °C (23 °F). However, it dropped to -13.8 °C (7.2 °F) in March 2018.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 16 °C (61 °F). However, it reached 21.8 °C (71.2 °F) in March 2010.
Precipitation amounts to 40 mm (1.6 in), distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 3.5 °C (38 °F). Therefore, the sea is very cold for swimming.

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In April, the weather in Swinoujscie is usually quite mild. The average temperature is of 8.3 °C (47 °F), with a minimum of 4.4 °C (39.9 °F) and a maximum of 12.2 °C (54 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1 °C (30 °F). However, it dropped to -5.1 °C (22.8 °F) in April 1996.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 22 °C (72 °F). However, it reached 29 °C (84.2 °F) in April 2000.
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
The day lasts on average 14 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 5.5 °C (42 °F). Therefore, the sea is very cold for swimming.

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In May, the weather in Swinoujscie is usually mild. The average temperature is of 12.5 °C (54 °F), with a minimum of 8.4 °C (47.1 °F) and a maximum of 16.6 °C (61.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 2.5 °C (36.5 °F). However, it dropped to 0.7 °C (33.3 °F) in May 1999.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 27 °C (80.5 °F). However, it reached 32.7 °C (90.9 °F) in May 2005.
Precipitation amounts to 50 mm (2 in), distributed over 9 days.
The day lasts on average 16 hours and 0 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 9.5 °C (49 °F). Therefore, the sea is very cold for swimming.

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In June, the weather in Swinoujscie is usually very mild. The average temperature is of 16.2 °C (61 °F), with a minimum of 12 °C (53.6 °F) and a maximum of 20.3 °C (68.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7 °C (45 °F). However, it dropped to 4.6 °C (40.3 °F) in June 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 29.5 °C (84.5 °F). However, it reached 37.8 °C (100 °F) in June 2019.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 17 hours and 0 minutes. So the days are very long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 8.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 14 °C (57 °F). Therefore, the sea is very cold for swimming.

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In July, the weather in Swinoujscie is usually warm. The average temperature is of 18.4 °C (65 °F), with a minimum of 14.4 °C (57.9 °F) and a maximum of 22.5 °C (72.5 °F).
On the coldest nights of the month, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 8.1 °C (46.6 °F) in July 1995.
On the warmest days of the month, the temperature usually reaches around 30.5 °C (86.5 °F). However, it reached 36 °C (96.8 °F) in July 1994.
Precipitation amounts to 75 mm (3 in), distributed over 10 days.
The day lasts on average 16 hours and 30 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.

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In August, the warmest month of the year, the weather in Swinoujscie is usually warm. The average temperature is of 18.6 °C (65 °F), with a minimum of 14.4 °C (57.9 °F) and a maximum of 22.8 °C (73 °F).
On the coldest nights of the month, the temperature usually drops to around 9.5 °C (48.5 °F). However, it dropped to 6.9 °C (44.4 °F) in August 2014.
On the warmest days of the month, the temperature usually reaches around 31 °C (88 °F). However, it reached 37.4 °C (99.3 °F) in August 1994.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 14 hours and 40 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 18.5 °C (65 °F). Therefore, the sea is very cool for swimming.

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In September, the weather in Swinoujscie is usually very mild. The average temperature is of 14.9 °C (59 °F), with a minimum of 11.2 °C (52.2 °F) and a maximum of 18.6 °C (65.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6 °C (42.5 °F). However, it dropped to 2.7 °C (36.9 °F) in September 2002.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 25 °C (77 °F). However, it reached 29.2 °C (84.6 °F) in September 2019.
Precipitation amounts to 55 mm (2.2 in), distributed over 8 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 16 °C (60.5 °F). Therefore, the sea is cold for swimming.

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In October, the weather in Swinoujscie is usually mild. The average temperature is of 10 °C (50 °F), with a minimum of 7 °C (44.6 °F) and a maximum of 13 °C (55.4 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 1 °C (33.5 °F). However, it dropped to -2.9 °C (26.8 °F) in October 2012.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 19.5 °C (67 °F). However, it reached 23.9 °C (75 °F) in October 1995.
Precipitation amounts to 50 mm (2 in), distributed over 10 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 35% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 12.5 °C (54.5 °F). Therefore, the sea is very cold for swimming.

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In November, the weather in Swinoujscie is usually quite cold. The average temperature is of 5.2 °C (41 °F), with a minimum of 3 °C (37.4 °F) and a maximum of 7.3 °C (45.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -3 °C (27 °F). However, it dropped to -9.5 °C (14.9 °F) in November 1998.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 13 °C (55.5 °F). However, it reached 18.1 °C (64.6 °F) in November 2020.
Precipitation amounts to 45 mm (1.8 in), distributed over 9 days.
The day lasts on average 8 hours and 30 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 90%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 9 °C (48 °F). Therefore, the sea is very cold for swimming.

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In December, the weather in Swinoujscie is usually cold. The average temperature is of 2.0 °C (36 °F), with a minimum of 0 °C (32 °F) and a maximum of 3.9 °C (39 °F).
On the coldest nights of the month, the temperature usually drops to around -7 °C (19.5 °F). However, it dropped to -15.2 °C (4.6 °F) in December 1995.
On the warmest days of the month, the temperature usually reaches around 10 °C (50 °F). However, it reached 13.9 °C (57 °F) in December 2019.
Precipitation amounts to 45 mm (1.8 in), distributed over 10 days.
The day lasts on average 7 hours and 30 minutes. So the days are short. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 1.5 hours of sunshine per day. So, the sun shines 17% of the time.
The average humidity is 90%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 5.5 °C (42.5 °F). Therefore, the sea is very cold for swimming.