Climate - Poznan (Poland)

The climate of Poznan is moderately continental, characterized by cold winters, with temperatures around freezing (0 °C or 32 °F), and quite warm summers.
The city is located in the central-western region of Poland, in the Greater Poland voivodeship, of which it is the capital.
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 -20 °C (-4 °F) or below. The coldest record is -28.5 °C (-19.3 °F) and was set in January 1987.
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, with maximum temperatures exceeding 30 °C (86 °F). The temperature reached 38 °C (100.5 °F) in late June 2019.

Best Time

The best time to visit Poznan 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.

Poznan - Climate data

In Poznan, the average temperature of the coldest month (January) is of -0.4 °C (31.3 °F), that of the warmest month (July) is of 19.6 °C (67.4 °F). Here are the average temperatures.
In Poznan, precipitation amounts to 545 millimeters (21.5 inches) per year: so, it is at an intermediate level. It ranges from 30 mm (1.2 in) in the driest months (February, April) to 85 mm (3.3 in) in the wettest one (July). Here is the average precipitation.
In Poznan, there are on average around 1860 sunshine hours per year. Here are the average hours of sunshine per day.

Poznan - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Poznan is usually very cold. The average temperature is of -0.4 °C (31 °F), with a minimum of -2.9 °C (26.8 °F) and a maximum of 2.1 °C (35.8 °F).
On the coldest nights of the month, the temperature usually drops to around -13.5 °C (7.5 °F). However, it dropped to -26.4 °C (-15.5 °F) in January 2006.
On the warmest days of the month, the temperature usually reaches around 9.5 °C (49 °F). However, it reached 13.5 °C (56.3 °F) in January 2007.
Precipitation amounts to 35 mm (1.4 in), distributed over 9 days.
The day lasts on average 8 hours and 20 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

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In February, the weather in Poznan is usually cold. The average temperature is of 0.6 °C (33 °F), with a minimum of -2.4 °C (27.7 °F) and a maximum of 3.7 °C (38.7 °F).
On the coldest nights of the month, the temperature usually drops to around -11.5 °C (11 °F). However, it dropped to -22.1 °C (-7.8 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 11 °C (52 °F). However, it reached 15.2 °C (59.4 °F) in February 1998.
Precipitation amounts to 30 mm (1.2 in), distributed over 7 days.
The day lasts on average 10 hours and 0 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 26% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

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In March, the weather in Poznan is usually quite cold. The average temperature is of 4.0 °C (39 °F), with a minimum of 0 °C (32 °F) and a maximum of 8.1 °C (46.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -8 °C (18 °F). However, it dropped to -17.7 °C (0.1 °F) in March 2013.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 17.5 °C (63.5 °F). However, it reached 22 °C (71.6 °F) in March 2010.
Precipitation amounts to 40 mm (1.6 in), distributed over 9 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 75%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).

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In April, the weather in Poznan is usually mild. The average temperature is of 9.5 °C (49 °F), with a minimum of 4 °C (39.2 °F) and a maximum of 15 °C (59 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -3.5 °C (26 °F). However, it dropped to -7.3 °C (18.9 °F) in April 2002.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24.5 °C (75.5 °F). However, it reached 30.5 °C (86.9 °F) in April 2012.
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 64%.
The average wind speed is 13 kph (8 mph).

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In May, the weather in Poznan is usually mild. The average temperature is of 14.1 °C (57 °F), with a minimum of 8.4 °C (47.1 °F) and a maximum of 19.8 °C (67.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 0.5 °C (33.5 °F). However, it dropped to -3.9 °C (25 °F) in May 2011.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 27.5 °C (82 °F). However, it reached 32 °C (89.6 °F) in May 2018.
Precipitation amounts to 55 mm (2.2 in), distributed over 8 days.
The day lasts on average 15 hours and 50 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 65%.
The average wind speed is 12 kph (8 mph).

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In June, the weather in Poznan is usually very mild. The average temperature is of 17.5 °C (64 °F), with a minimum of 11.9 °C (53.4 °F) and a maximum of 23.1 °C (73.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 5.5 °C (42 °F). However, it dropped to 1.5 °C (34.7 °F) in June 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 38 °C (100.4 °F) in June 2019.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 16 hours and 40 minutes. So the days are 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 66%.
The average wind speed is 12 kph (7 mph).

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In July, the warmest month of the year, the weather in Poznan is usually warm. The average temperature is of 19.6 °C (67 °F), with a minimum of 14.1 °C (57.4 °F) and a maximum of 25.2 °C (77.4 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47 °F). However, it dropped to 5.4 °C (41.7 °F) in July 1996.
On the warmest days of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 36.8 °C (98.2 °F) in July 1998.
Precipitation amounts to 85 mm (3.3 in), distributed over 10 days.
The day lasts on average 16 hours and 10 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 66%.
The average wind speed is 11 kph (7 mph).

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In August, the weather in Poznan is usually warm. The average temperature is of 19.3 °C (67 °F), with a minimum of 13.7 °C (56.7 °F) and a maximum of 24.9 °C (76.8 °F).
On the coldest nights of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 3.9 °C (39 °F) in August 1993.
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F). However, it reached 37.1 °C (98.8 °F) in August 2015.
Precipitation amounts to 55 mm (2.2 in), distributed over 8 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 67%.
The average wind speed is 11 kph (7 mph).

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In September, the weather in Poznan is usually very mild. The average temperature is of 14.6 °C (58 °F), with a minimum of 9.6 °C (49.3 °F) and a maximum of 19.5 °C (67.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 2.5 °C (36.5 °F). However, it dropped to -0.8 °C (30.6 °F) in September 2002.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 27 °C (80.5 °F). However, it reached 34.3 °C (93.7 °F) in September 2015.
Precipitation amounts to 45 mm (1.8 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 75%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).

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In October, the weather in Poznan is usually mild. The average temperature is of 9.4 °C (49 °F), with a minimum of 5.4 °C (41.7 °F) and a maximum of 13.3 °C (55.9 °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 -7.8 °C (18 °F) in October 1994.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 21.5 °C (70.5 °F). However, it reached 25.3 °C (77.5 °F) in October 2004.
Precipitation amounts to 35 mm (1.4 in), distributed over 8 days.
The day lasts on average 10 hours and 35 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).

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In November, the weather in Poznan is usually quite cold. The average temperature is of 4.4 °C (40 °F), with a minimum of 1.8 °C (35.2 °F) and a maximum of 7.1 °C (44.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -6 °C (21.5 °F). However, it dropped to -13 °C (8.6 °F) in November 2010.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 14 °C (57.5 °F). However, it reached 19 °C (66.2 °F) in November 2018.
Precipitation amounts to 35 mm (1.4 in), distributed over 7 days.
The day lasts on average 8 hours and 40 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).

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In December, the weather in Poznan is usually cold. The average temperature is of 0.9 °C (34 °F), with a minimum of -1.4 °C (29.5 °F) and a maximum of 3.2 °C (37.8 °F).
On the coldest nights of the month, the temperature usually drops to around -10 °C (13.5 °F). However, it dropped to -19.2 °C (-2.6 °F) in December 1996.
On the warmest days of the month, the temperature usually reaches around 10 °C (50.5 °F). However, it reached 14 °C (57.2 °F) in December 2015.
Precipitation amounts to 40 mm (1.6 in), distributed over 9 days.
The day lasts on average 7 hours and 50 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 hours of sunshine per day. So, the sun shines 15% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).