Water temperature in Koszalin in July

Is it warm enough to swim in Koszalin in July? Average water temperature in Koszalin in July is 18.3°C and therefore is not suitable for comfortable swimming. The warmest sea in Koszalin in July is 21.8°C, and the coldest is 15.7°C. Average high air temperature in Koszalin in July is 21°C, and average low temperature is 12°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Koszalin

Changes water temperature in Koszalin in July 2025, 2024

To get an accurate forecast for the water temperature in Koszalin for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Koszalin, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of July.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 July	18.7°C	17.8°C	15.8°C	20.2°C
2 July	19.7°C	17.3°C	15.7°C	20.3°C
3 July	18.7°C	17.2°C	15.7°C	20.2°C
4 July	18.8°C	16.9°C	16.5°C	19.8°C
5 July	18.9°C	17°C	16.7°C	19.7°C
6 July	18.4°C	16.9°C	16.3°C	20°C
7 July	18.4°C	17.2°C	15.9°C	19.8°C
8 July	18.4°C	17.3°C	15.8°C	19.5°C
9 July	18.9°C	17.7°C	15.9°C	20.2°C
10 July	18.6°C	17.8°C	16.1°C	20.3°C
11 July	18.5°C	17.3°C	16.1°C	20.9°C
12 July	18.5°C	17.4°C	16°C	21.8°C
13 July	18.6°C	17.4°C	16.1°C	21.3°C
14 July	18.8°C	17.2°C	16.3°C	21.3°C
15 July	18.8°C	18.1°C	16.5°C	21.4°C

Day	2025	2024	Min	Max
16 July	18.8°C	18°C	16.7°C	21.6°C
17 July	18.6°C	17.9°C	16.7°C	21.5°C
18 July	18.6°C	18.3°C	16.8°C	20.7°C
19 July	19.3°C	18.7°C	16.8°C	20.8°C
20 July	19°C	19.5°C	16.8°C	21.1°C
21 July	18.8°C	18.9°C	16.7°C	21.2°C
22 July	18.7°C	18.5°C	16.8°C	21.6°C
23 July	18.8°C	18.8°C	16.8°C	21.5°C
24 July	19.2°C	18.7°C	17°C	20.9°C
25 July	19.4°C	18.2°C	16.8°C	21.2°C
26 July	19.6°C	18.5°C	16.9°C	21.4°C
27 July	19.2°C	18.7°C	16.8°C	21°C
28 July	19.2°C	18.9°C	16.9°C	20.7°C
29 July	19.7°C	19°C	17°C	20.4°C
30 July	20°C	19.6°C	17°C	20.8°C
31 July	20°C	20.3°C	16.8°C	21°C

Average water temperature in Koszalin in July over a decade

2016	2017	2018	2019	2020
18.3°C	17.3°C	18.5°C	18.2°C	18.2°C

2021	2022	2023	2024	2025
20.1°C	18.4°C	18.4°C	18.1°C	19°C

Koszalin sea state in July

Chart comparing the height of waves in Koszalin in July over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Weather and climate in Koszalin in July

This data display average monthly climate indicators in Koszalin in July based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

Average HIGH temperature21°C
Average LOW temperature12°C
Average rainfall days11 days
Average rainfall3.5''/89mm
Average daylight17h
Average sunshine6.9h
Average UV index6

Koszalin water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Mielno	18.3°C	15.7°C	21.8°C
Sarbinowo	18.3°C	15.6°C	22°C
Darlowo	18.3°C	15.6°C	21.8°C
Grzybowo	18.3°C	15.1°C	22.2°C
Jaroslawiec	18.3°C	15.5°C	21.9°C
Dzwirzyno	18.4°C	15.2°C	22.2°C
Niechorze	18.6°C	14.9°C	22.3°C
Rewal	18.6°C	14.9°C	22.3°C
Rowy	18.3°C	15.3°C	22°C
Pobierowo	18.8°C	14.9°C	22.5°C

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Our report for Koszalin is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature