Water temperature in Portosin in July

Is it warm enough to swim in Portosin in July? Average water temperature in Portosin in July is 17.3°C and therefore is not suitable for comfortable swimming. The warmest sea in Portosin in July is 20.3°C, and the coldest is 15.2°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Portosin

Changes water temperature in Portosin in July 2025, 2024

To get an accurate forecast for the water temperature in Portosin for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Portosin, 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	20.3°C	16.7°C	15.4°C	20.3°C
2 July	20°C	16.6°C	15.2°C	20°C
3 July	19.4°C	16.9°C	15.9°C	19.4°C
4 July	18.4°C	16.8°C	16°C	18.4°C
5 July	17.8°C	17.2°C	16.2°C	18.2°C
6 July	17.1°C	16.2°C	15.9°C	18.3°C
7 July	16.5°C	16°C	15.9°C	18.5°C
8 July	15.8°C	16°C	15.8°C	19.1°C
9 July	16°C	15.7°C	15.7°C	19.7°C
10 July	15.8°C	15.7°C	15.7°C	19.9°C
11 July	17.1°C	16.2°C	16.2°C	19.3°C
12 July	17.4°C	16.9°C	16.7°C	19.2°C
13 July	16.6°C	16.5°C	16.3°C	19.2°C
14 July	17.5°C	16.1°C	16.1°C	18.8°C
15 July	17.7°C	16.3°C	16.2°C	18.4°C

Day	2025	2024	Min	Max
16 July	17.8°C	17.2°C	15.7°C	18.8°C
17 July	17.5°C	18.1°C	15.7°C	18.6°C
18 July	16.9°C	18.9°C	16°C	18.9°C
19 July	17.1°C	18°C	16.1°C	18.3°C
20 July	17°C	18.6°C	16.1°C	18.6°C
21 July	17.1°C	18.3°C	16.2°C	18.8°C
22 July	16.7°C	18.3°C	16.1°C	18.5°C
23 July	17.1°C	18.4°C	15.9°C	18.6°C
24 July	17°C	18.1°C	15.2°C	18.4°C
25 July	16.6°C	17.8°C	15.6°C	18.3°C
26 July	16.2°C	17.7°C	15.8°C	18.6°C
27 July	16.2°C	17.1°C	15.6°C	18.5°C
28 July	16°C	17.9°C	15.9°C	18.8°C
29 July	16.1°C	18.6°C	16°C	18.6°C
30 July	16°C	19.5°C	16°C	19.5°C
31 July	15.7°C	19.2°C	15.7°C	19.2°C

Average water temperature in Portosin in July over a decade

2016	2017	2018	2019	2020
16.7°C	16.8°C	18.3°C	17.7°C	17.1°C

2021	2022	2023	2024	2025
17°C	17.6°C	17.7°C	17.3°C	17.1°C

Portosin sea state in July

Chart comparing the height of waves in Portosin 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.

Portosin 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
Aguieira Beach	17.3°C	15.2°C	20.3°C
Praia de Brona	17.3°C	15.2°C	20.3°C
Louro	17.1°C	15°C	19.7°C
Esteiro	17.3°C	15.1°C	20.7°C
As Furnas	17.3°C	15.1°C	20°C
Barrana beach	17.7°C	15.3°C	21.7°C
A Pobra do Caraminal	17.5°C	15.2°C	20.8°C
Cabio beach	17.5°C	15.2°C	20.8°C
Praia de Tanxil	17.8°C	15.3°C	21.7°C
Praia do Ezaro	16.8°C	14.6°C	19.1°C

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Our report for Portosin 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.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature