Water temperature in Alentejo in December

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Is it warm enough to swim in Alentejo in December? Average water temperature in Alentejo in December is 16.3°C and therefore is not suitable for comfortable swimming. The warmest sea in Alentejo in December is 18.3°C, and the coldest is 14°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Alentejo

Changes water temperature in Alentejo in December 2024, 2023

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2024	2023	Min	Max
1 December	18°C	17.9°C	14.6°C	18°C
2 December	18.1°C	18.1°C	14.6°C	18.1°C
3 December	18.3°C	18°C	14.7°C	18.3°C
4 December	18.3°C	17.8°C	14.6°C	18.3°C
5 December	18.1°C	18°C	14.7°C	18.1°C
6 December	18°C	17.8°C	14.6°C	18°C
7 December	17.8°C	17.6°C	14.3°C	17.8°C
8 December	17.6°C	18.1°C	14.4°C	18.1°C
9 December	17.1°C	17.3°C	14.5°C	17.8°C
10 December	16.8°C	17.3°C	14.5°C	17.8°C
11 December	16.7°C	17.2°C	14.3°C	17.8°C
12 December	16.5°C	17.5°C	14.3°C	17.8°C
13 December	16.6°C	17.4°C	14.2°C	17.7°C
14 December	16.5°C	17.2°C	14.2°C	17.8°C
15 December	16.7°C	16.9°C	14.4°C	17.7°C

Day	2024	2023	Min	Max
16 December	16.2°C	16.7°C	14°C	17.6°C
17 December	16.3°C	16.8°C	14°C	17.6°C
18 December	16.3°C	17.1°C	14.2°C	17.8°C
19 December	16.7°C	16.7°C	14.3°C	17.7°C
20 December	16.3°C	16.6°C	14.3°C	17.6°C
21 December	16.3°C	16.7°C	14.4°C	17.6°C
22 December	16.3°C	16.4°C	14.3°C	17.5°C
23 December	16.2°C	16.7°C	14.3°C	17.3°C
24 December	16°C	16.6°C	14.1°C	17.4°C
25 December	16.1°C	16.5°C	14°C	17.2°C
26 December	16.1°C	16.8°C	14.4°C	17.2°C
27 December	16.4°C	16.7°C	14.4°C	17.2°C
28 December	16.5°C	16.6°C	14.2°C	17.2°C
29 December	16.4°C	16.9°C	14.4°C	17.2°C
30 December	16.2°C	16.9°C	14.5°C	17.2°C
31 December	16.3°C	16.7°C	14.5°C	17.1°C

Average water temperature in Alentejo in December over a decade

2015	2016	2017	2018	2019
17.2°C	17.2°C	16.5°C	15.7°C	15.1°C

2020	2021	2022	2023	2024
16.6°C	15.2°C	16.6°C	17.1°C	16.8°C

Alentejo sea state in December

Chart comparing the height of waves in Alentejo in December 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.

Alentejo 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 December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Santo Andre	16.2°C	14°C	18.3°C
Melides	16.2°C	14°C	18.1°C
Praia de Sao Torpes	16.2°C	14°C	18.3°C
Praia do Pego	16.1°C	13.9°C	18.2°C
Praia do Malhao	16.2°C	14.1°C	18.7°C
Setubal	16.1°C	13.9°C	18.2°C
Carvalhal Beach	16°C	13.9°C	18.1°C
Sesimbra	16.3°C	13.9°C	18.5°C
Almograve	16.3°C	14.1°C	18.9°C
Comporta	16°C	13.9°C	17.9°C

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Our report for Alentejo 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