Weather and climate in Norrköping (Sweden)

The climate of Norrköping is Baltic, that is, moderately continental, with cold winters, during which the average temperature is a few degrees below freezing, and mild to pleasantly warm summers.
The city is located in southern Sweden, south of Stockholm, on the coast of a fjord.
Given the latitude (58°35'N), the white nights, in which the sun sets but it does not get completely dark even at midnight, occur from May 18th to July 25th.
In winter, during polar cold spells, the temperature can drop to -25 °C (-13 °F) or below. The coldest record is -33.5 °C (-28.3 °F) and was set in February 1966.
In summer, the temperature can reach 28/30 °C (82/86 °F). The highest record is 34.7 °C (94.5 °F) and was set in August 1975.

Best Time

The best time to visit Norrköping is the summer, from June to August, since it is the mildest season. However, you must take into account some rainy days and a bit of cold at night.

Norrköping - Climate data

The average temperature of the coldest month (February) is of -1.8 °C (28.8 °F), that of the warmest month (July) is of 17.2 °C (63.0 °F). Here are the average temperatures.
Precipitation amounts to 545 millimeters (21.5 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest month (March) to 70 mm (2.8 in) in the wettest one (July). Here is the average precipitation.
The sea temperature ranges from 2.5 °C (36 °F) in February, March to 17.5 °C (64 °F) in August. Here are the average sea temperatures.
There are on average around 1910 sunshine hours per year. Here are the average hours of sunshine per day.

Norrköping - Weather by month

Based on the period 1991-2020

---

January is generally a very cold month. The average temperature is of -1.6 °C (29 °F), with a minimum of -4.3 °C (24.3 °F) and a maximum of 1 °C (33.9 °F).
On the coldest nights of the month, the temperature usually drops to around -16 °C (3.5 °F). However, it dropped to -26 °C (-14.8 °F) in January 2010.
On the warmest days of the month, the temperature usually reaches around 7.5 °C (45 °F). However, it reached 12 °C (53.6 °F) in January 2007.
Precipitation amounts to 35 mm (1.4 in), distributed over 8 days.
The day lasts on average 7 hours and 10 minutes. So the days are short.
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 15 kph (9 mph).
The average sea temperature is of 3.5 °C (38 °F). Therefore, the sea is very cold for swimming.

---

February, the coldest month of the year, is generally a very cold month. The average temperature is of -1.8 °C (29 °F), with a minimum of -4.9 °C (23.1 °F) and a maximum of 1.4 °C (34.4 °F).
On the coldest nights of the month, the temperature usually drops to around -15 °C (5 °F). However, it dropped to -28 °C (-18.4 °F) in February 2010.
On the warmest days of the month, the temperature usually reaches around 8 °C (46.5 °F). However, it reached 12 °C (53.6 °F) in February 2002.
Precipitation amounts to 30 mm (1.2 in), distributed over 7 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 27% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 2.5 °C (36.5 °F). Therefore, the sea is very cold for swimming.

---

March is generally a cold month. The average temperature is of 1.2 °C (34 °F), with a minimum of -2.8 °C (27 °F) and a maximum of 5.2 °C (41.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -10.5 °C (13 °F). However, it dropped to -22 °C (-7.6 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 12.5 °C (55 °F). However, it reached 17 °C (62.6 °F) in March 2017.
Precipitation amounts to 25 mm (1 in), distributed over 7 days.
The day lasts on average 11 hours and 55 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 15 kph (9 mph).
The average sea temperature is of 2.5 °C (36 °F). Therefore, the sea is very cold for swimming.

---

April is generally a quite cold month. The average temperature is of 5.8 °C (42 °F), with a minimum of 0.4 °C (32.8 °F) and a maximum of 11.1 °C (51.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -6 °C (21.5 °F). However, it dropped to -9 °C (15.8 °F) in April 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 19.5 °C (67 °F). However, it reached 27 °C (80.6 °F) in April 1993.
Precipitation amounts to 30 mm (1.2 in), distributed over 7 days.
The day lasts on average 14 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 65%.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 3.5 °C (38 °F). Therefore, the sea is very cold for swimming.

---

May is generally a mild month. The average temperature is of 10.6 °C (51 °F), with a minimum of 5.1 °C (41.1 °F) and a maximum of 16.2 °C (61.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -1 °C (30.5 °F). However, it dropped to -6 °C (21.2 °F) in May 2017.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24 °C (75 °F). However, it reached 28 °C (82.4 °F) in May 2018.
Precipitation amounts to 40 mm (1.6 in), distributed over 7 days.
The day lasts on average 16 hours and 55 minutes. So the days are long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 63%.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 6.5 °C (43.5 °F). Therefore, the sea is very cold for swimming.

---

June is generally a very mild month. The average temperature is of 14.7 °C (58 °F), with a minimum of 9.4 °C (48.9 °F) and a maximum of 20 °C (68 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -1 °C (30.2 °F) in June 2009.
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 31 °C (87.8 °F) in June 2007.
Precipitation amounts to 65 mm (2.6 in), distributed over 10 days.
The day lasts on average 18 hours and 10 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 9 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 66%.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 11.5 °C (53 °F). Therefore, the sea is very cold for swimming.

---

July, the warmest month of the year, is generally a very mild month. The average temperature is of 17.2 °C (63 °F), with a minimum of 11.9 °C (53.3 °F) and a maximum of 22.5 °C (72.6 °F).
On the coldest nights of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 4 °C (39.2 °F) in July 1993.
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83.5 °F). However, it reached 33 °C (91.4 °F) in July 1994.
Precipitation amounts to 70 mm (2.8 in), distributed over 9 days.
The day lasts on average 17 hours and 30 minutes. So the days are very long.
There are on average 8.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 70%.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.

---

August is generally a very mild month. The average temperature is of 16.2 °C (61 °F), with a minimum of 11 °C (51.7 °F) and a maximum of 21.5 °C (70.7 °F).
On the coldest nights of the month, the temperature usually drops to around 5 °C (41 °F). However, it dropped to 2 °C (35.6 °F) in August 1995.
On the warmest days of the month, the temperature usually reaches around 28 °C (82 °F). However, it reached 33 °C (91.4 °F) in August 2018.
Precipitation amounts to 65 mm (2.6 in), distributed over 10 days.
The day lasts on average 15 hours and 20 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 17.5 °C (63 °F). Therefore, the sea is cold for swimming.

---

September is generally a mild month. The average temperature is of 12.0 °C (54 °F), with a minimum of 7.3 °C (45.2 °F) and a maximum of 16.6 °C (62 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 0.5 °C (32.5 °F). However, it dropped to -4 °C (24.8 °F) in September 2001.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 22 °C (72 °F). However, it reached 28 °C (82.4 °F) in September 2019.
Precipitation amounts to 50 mm (2 in), distributed over 8 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 14.5 °C (58 °F). Therefore, the sea is very cold for swimming.

---

October is generally a quite mild month. The average temperature is of 7.0 °C (45 °F), with a minimum of 3.4 °C (38.1 °F) and a maximum of 10.6 °C (51 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -4.5 °C (23.5 °F). However, it dropped to -9 °C (15.8 °F) in October 1992.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 16.5 °C (62 °F). However, it reached 23 °C (73.4 °F) in October 2018.
Precipitation amounts to 50 mm (2 in), distributed over 8 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 10.5 °C (51 °F). Therefore, the sea is very cold for swimming.

---

November is generally a cold month. The average temperature is of 2.9 °C (37 °F), with a minimum of 0.4 °C (32.8 °F) and a maximum of 5.3 °C (41.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -7 °C (19.5 °F). However, it dropped to -16 °C (3.2 °F) in November 2010.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 11 °C (52 °F). However, it reached 17 °C (62.6 °F) in November 2020.
Precipitation amounts to 50 mm (2 in), distributed over 10 days.
The day lasts on average 7 hours and 50 minutes. So the days are short.
There are on average 1.5 hours of sunshine per day. So, the sun shines 22% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 7 °C (45 °F). Therefore, the sea is very cold for swimming.

---

December is generally a very cold month. The average temperature is of -0.2 °C (32 °F), with a minimum of -2.7 °C (27.2 °F) and a maximum of 2.3 °C (36.1 °F).
On the coldest nights of the month, the temperature usually drops to around -13 °C (8.5 °F). However, it dropped to -26 °C (-14.8 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 8.5 °C (47 °F). However, it reached 13 °C (55.4 °F) in December 2006.
Precipitation amounts to 40 mm (1.6 in), distributed over 10 days.
The day lasts on average 6 hours and 25 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 21% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 5 °C (40.5 °F). Therefore, the sea is very cold for swimming.