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.

Wednesday
16th Sep
18

13

2

1
Thursday
17th Sep
17

12

6

3
Friday
18th Sep
17

12

5

2
Saturday
19th Sep
19

11

6

3
Sunday
20th Sep
16

14

2

2

5-day weather forecast updated at 04:00 on Wednesday 16th September 2026 GMT

More about Koszalin

Koszalin by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Poland

Jet2holidays: up to £700 off late summer breaks

Sale

Save up to £700 off late summer family holidays
Discount based on 2 adults & 2 children. T&Cs apply
Travel before 31st October 2026 (inclusive)

Go to Jet2holidays deal >>

Expires at 23:59 on Wednesday 30th Sep 2026 · View all Jet2holidays offers

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 16th September 2026

Expect mostly cloudy with rain in Koszalin, Poland with a maximum temperature of 18°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a light breeze of 12 kph from the south.

18
°C maximum temperature
13
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
1
UV index (Low)
94
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
12
kph wind from S

Koszalin weather for Thursday 17th September 2026

Expect sunshine and showers in Koszalin, Poland with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a gentle breeze of 16 kph from the south-west.

17
°C maximum temperature
12
°C minimum temperature
sunshine and showers
6
hours of sunshine
3
UV index (Moderate)
19
% chance of some rain
<2
mm of rainfall expected
17
°C wind chill
16
kph wind from SW

Koszalin weather for Friday 18th September 2026

Expect sunshine and showers in Koszalin, Poland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a gentle breeze of 14 kph from the south-west.

17
°C maximum temperature
12
°C minimum temperature
sunshine and showers
5
hours of sunshine
2
UV index (Low)
33
% 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 19°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from SW

Koszalin weather for Sunday 20th September 2026

Expect mostly cloudy with light rain in Koszalin, Poland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 18 kph from the south-west.