Koszalin weather live forecast

Today's maximum temperature in Koszalin is expected to be 18°C. Select a day from the live weather forecast for Koszalin, Poland for more weather parameters.

Tuesday
1st Sep
18

15

4

2
Wednesday
2nd Sep
20

15

4

3
Thursday
3rd Sep
19

15

1

3
Friday
4th Sep
18

15

2

3
Saturday
5th Sep
17

14

6

4

5-day weather forecast updated at 04:00 on Monday 31st August 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 1st September 2026

Expect isolated thunderstorms in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 73% chance of some rain and a gentle breeze of 17 kph from the west.

18
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
2
UV index (Low)
73
% chance of some rain
<5
mm of rainfall expected
18
°C wind chill
17
kph wind from W

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 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 16 kph from the west.

20
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
3
UV index (Moderate)
41
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
16
kph wind from W

Koszalin weather for Thursday 3rd September 2026

Expect mostly cloudy with rain in Koszalin, Poland with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 17 kph from the south-west.

19
°C maximum temperature
15
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
3
UV index (Moderate)
75
% chance of some rain
<10
mm of rainfall expected
19
°C wind chill
17
kph wind from SW

Koszalin weather for Friday 4th September 2026

Expect cloudy with some rain in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a gentle breeze of 15 kph from the west.

18
°C maximum temperature
15
°C minimum temperature
cloudy with some rain
2
hours of sunshine
3
UV index (Moderate)
81
% chance of some rain
<10
mm of rainfall expected
18
°C wind chill
15
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 4 (Moderate) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 95% chance of some rain and a moderate breeze of 22 kph from the west.