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.

Tuesday
15th Sep
20

10

6

4
Wednesday
16th Sep
18

13

0

3
Thursday
17th Sep
16

12

5

3
Friday
18th Sep
18

12

5

3
Saturday
19th Sep
18

11

6

3

5-day weather forecast updated at 04:00 on Tuesday 15th 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 Tuesday 15th September 2026

Expect broken clouds in Koszalin, Poland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

20
°C maximum temperature
10
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
10
kph wind from S

Koszalin weather for Wednesday 16th September 2026

Expect isolated thunderstorms in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 92% chance of some rain and a light breeze of 12 kph from the south.

18
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
92
% chance of some rain
<10
mm of rainfall expected
18
°C wind chill
12
kph wind from S

Koszalin weather for Thursday 17th September 2026

Expect mostly cloudy with light rain in Koszalin, Poland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a gentle breeze of 17 kph from the south-west.

16
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
3
UV index (Moderate)
26
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
17
kph wind from SW

Koszalin weather for Friday 18th September 2026

Expect mostly cloudy with light rain in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 14 kph from the south-west.

18
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
3
UV index (Moderate)
36
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
14
kph wind from SW

Koszalin weather for Saturday 19th September 2026

Expect broken clouds in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.