Water temperature in Olhao

This data the coastal Olhao sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Olhao

Water temperature in Olhao today is 19.2°C. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Olhao was recorded in 2018 and was 24.4°C, and the coldest was recorded in 2017 at 19.4°C. Sea water temperature in Olhao is expected to rise to 20.9°C in the next 10 days. September average water temperature in Olhao is 21.4°C, the minimum temperature is 17.7°C, and the maximum is 24.8°C.

The swimming season in Olhao lasts from June to October. During those months, Olhao water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Olhao in winter reaches 16.5°C, in spring 16.8°C, in summer the average temperature rises to 20.7°C, and in autumn it is 20.2°C.

Olhao water temperature now

The sea salinity in Olhao is 35.82‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Olhao for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Olhao. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Olhao. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Olhao

Olhao weather forecast

Current temperature and weather

Data in a table show Olhao temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Olhao.

0-3 h	3-6 h	6-9 h	9-12 h
19.3°C	18.7°C	18.4°C	20.5°C

12-15 h	15-18 h	18-21 h	21-24 h
22.2°C	22.9°C	22°C	20.1°C

Olhao water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Olhao. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Olhao on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Olhao

The nearest beaches and cities from Olhao with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Ilha do Farol	19.2°C	23°C		0.38 m
Ilha da Armona	19.3°C	23°C		0.38 m
Praia dos Cavacos	19.3°C	23°C		0.38 m
Barreta Island	19°C	23°C		0.38 m
Praia de Faro	19.2°C	22°C		0.4 m
Quinta do Lago Beach	19.2°C	22°C		0.4 m
Praia do Barril	19.4°C	25°C		0.27 m
Quarteira	19.1°C	22°C		0.35 m
Almancil	19.1°C	22°C		0.35 m
Vale do Lobo	19.1°C	22°C		0.35 m

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Our report for Olhao 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.