Water temperature in Viana do Castelo in April

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Is it warm enough to swim in Viana do Castelo in April? Average water temperature in Viana do Castelo in April is 14.2°C and therefore is not suitable for comfortable swimming. The warmest sea in Viana do Castelo in April is 17.1°C, and the coldest is 12°C. Average high air temperature in Viana do Castelo in April is 19°C, and average low temperature is 9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Viana do Castelo

Changes water temperature in Viana do Castelo in April 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 April	14.8°C	13.9°C	12.3°C	15.6°C
2 April	15.1°C	13.8°C	12.3°C	15.3°C
3 April	15.1°C	13.8°C	12.3°C	15.1°C
4 April	14.8°C	13.7°C	12.6°C	15°C
5 April	15°C	13.7°C	12.3°C	15°C
6 April	15.4°C	14°C	12.4°C	15.4°C
7 April	15.1°C	14°C	12.4°C	15.1°C
8 April	15.9°C	14.4°C	12°C	15.9°C
9 April	16.2°C	14.5°C	12.2°C	16.2°C
10 April	16.5°C	14.4°C	12.2°C	16.5°C
11 April	16.6°C	14.3°C	12.1°C	16.6°C
12 April	16.4°C	14.4°C	12.2°C	16.4°C
13 April	16.3°C	14.5°C	12.4°C	16.3°C
14 April	15.9°C	15.3°C	12.5°C	15.9°C
15 April	15.7°C	15.1°C	12.7°C	15.9°C

Day	2025	2024	Min	Max
16 April	15.3°C	14.6°C	12.9°C	15.8°C
17 April	15.3°C	14.4°C	13°C	15.6°C
18 April	15.4°C	14.7°C	13.1°C	15.6°C
19 April	15.2°C	14.7°C	13.1°C	15.6°C
20 April	15°C	15.2°C	13°C	15.9°C
21 April	14.7°C	15.5°C	13.2°C	16.1°C
22 April	15.3°C	15.3°C	13.2°C	16.1°C
23 April	15.3°C	15.4°C	13.2°C	16.7°C
24 April	15.3°C	15.3°C	13.3°C	16.6°C
25 April	15°C	14.8°C	13.2°C	16.8°C
26 April	14.6°C	14.7°C	13.2°C	16.8°C
27 April	14.6°C	14.5°C	13.2°C	16.8°C
28 April	15°C	14.3°C	13°C	17.1°C
29 April	15.7°C	14.2°C	12.9°C	16.9°C
30 April	15.4°C	14.3°C	12.7°C	16.8°C

Viana do Castelo water temp chart in April

Average water temperature in Viana do Castelo in April over a decade

2016	2017	2018	2019	2020
13.3°C	14.8°C	13.1°C	13.8°C	14.2°C

2021	2022	2023	2024	2025
15°C	13.7°C	15.2°C	14.5°C	15.4°C

Viana do Castelo sea state in April

Chart comparing the height of waves in Viana do Castelo in April 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.

Waves height in Viana do Castelo in April

Weather and climate in Viana do Castelo in April

This data display average monthly climate indicators in Viana do Castelo in April 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 temperature19°C
Average LOW temperature9°C

Viana do Castelo 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 April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Vila Praia de Ancora	14.2°C	12°C	17.1°C
Afife	14.2°C	12°C	17.1°C
Esposende	14.3°C	12.1°C	17.1°C
Moledo	14.1°C	12°C	17°C
Caminha	14.1°C	12°C	17°C
A Guarda	14.1°C	12.1°C	17°C
Ofir	14.3°C	12.1°C	17.5°C
Aver-o-Mar	14.4°C	12.2°C	17.5°C
Povoa de Varzim	14.4°C	12.2°C	17.4°C
Vila do Conde	14.4°C	12.2°C	17.2°C

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Our report for Viana do Castelo 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