Koszalin weather live forecast

Today's maximum temperature in Koszalin is expected to be 20°C. Select a day from the live weather forecast for Koszalin, Poland for more weather parameters.

Wednesday
2nd Sep
20

15

3

3
Thursday
3rd Sep
20

14

1

2
Friday
4th Sep
19

16

1

2
Saturday
5th Sep
17

15

5

3
Sunday
6th Sep
17

13

6

4

5-day weather forecast updated at 04:00 on Tuesday 1st September 2026 GMT

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The 5-day weather forecast for Poland (Koszalin) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Koszalin weather forecast by day

Below are the detailed weather forecasts for Koszalin for the next 5 days.

Koszalin weather for Wednesday 2nd September 2026

Expect mostly cloudy with light rain in Koszalin, Poland with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 14 kph from the west.

20
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
27
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
14
kph wind from W

Koszalin weather for Thursday 3rd September 2026

Expect mostly cloudy with light rain in Koszalin, Poland with a maximum temperature of 20°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 77% chance of some rain and a gentle breeze of 16 kph from the south-west.

20
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
77
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Koszalin weather for Friday 4th September 2026

Expect cloudy with some rain in Koszalin, Poland with a maximum temperature of 19°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 21 kph from the west.

19
°C maximum temperature
16
°C minimum temperature
cloudy with some rain
1
hour of sunshine
2
UV index (Low)
84
% chance of some rain
<20
mm of rainfall expected
19
°C wind chill
21
kph wind from W

Koszalin weather for Saturday 5th September 2026

Expect sunshine and showers in Koszalin, Poland with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 83% chance of some rain and a moderate breeze of 22 kph from the west.

17
°C maximum temperature
15
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
83
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
22
kph wind from W

Koszalin weather for Sunday 6th September 2026

Expect sunshine and showers in Koszalin, Poland with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 73% chance of some rain and a gentle breeze of 18 kph from the west.