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Water temperature in Southend-on-Sea in August

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Is it warm enough to swim in Southend-on-Sea in August? Average water temperature in Southend-on-Sea in August is 19.1°C and therefore is not suitable for comfortable swimming. The warmest sea in Southend-on-Sea in August is 22.3°C, and the coldest is 17°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Southend-on-Sea

Changes water temperature in Southend-on-Sea in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
1 August20°C20.4°C17.5°C20.5°C
2 August19.6°C20°C17.8°C21.1°C
3 August19.7°C20.4°C18.1°C21.1°C
4 August19.9°C20.4°C18.1°C21.4°C
5 August19.3°C20.9°C17.7°C21.5°C
6 August19.2°C20.4°C17.8°C21.4°C
7 August19.5°C20.5°C18°C22°C
8 August19.7°C20.5°C17.7°C22.1°C
9 August19.7°C20.7°C17.9°C21.2°C
10 August19.8°C20.7°C17.8°C21.5°C
11 August19.7°C21°C17.9°C21.7°C
12 August20°C21.2°C17.8°C21.8°C
13 August20.1°C21.5°C17.8°C22°C
14 August20.9°C21.3°C18°C21.3°C
15 August21.1°C21.4°C18°C21.8°C
Day 2025 2024 Min Max
16 August20.4°C21°C17.6°C21.7°C
17 August20.4°C20.8°C17.7°C21.4°C
18 August20.5°C20.6°C17.7°C22.3°C
19 August20°C20.7°C17.7°C21.9°C
20 August19.8°C20.7°C17.8°C21.7°C
21 August19.7°C20.3°C17.7°C21.5°C
22 August19.1°C20.1°C17.4°C21.6°C
23 August19°C19.7°C17.5°C21.3°C
24 August19.3°C19.3°C17.5°C21.7°C
25 August19.6°C19.1°C17.4°C20.8°C
26 August19.4°C19.2°C17.4°C21.3°C
27 August19.3°C19.4°C17.4°C21.2°C
28 August19.6°C19.8°C17.5°C20.9°C
29 August19.3°C19.4°C17.2°C21.1°C
30 August19.3°C19°C17.1°C20.9°C
31 August18.8°C19.2°C17°C20.5°C
Southend-on-Sea water temp chart in August

Average water temperature in Southend-on-Sea in August over a decade

20162017201820192020
19.6°C18.8°C20°C19.3°C20.2°C
20212022202320242025
18.6°C21.3°C19°C20.3°C19.6°C

Southend-on-Sea sea state in August

Chart comparing the height of waves in Southend-on-Sea in August 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 Southend-on-Sea in August

Southend-on-Sea water temperature during other months:

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

Where is the warm sea water in August?

Want to know where the water temperature in August is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Temperature in neighboring cities

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

AvrMinMax
Tilbury19.1°C17°C22.1°C
Tankerton19°C17.1°C21.9°C
Whitstable19°C17.1°C21.9°C
Leysdown-on-Sea19.1°C17.1°C22.3°C
Herne Bay19°C17.1°C21.7°C
Minster on Sea19.1°C17.1°C22.4°C
Reculver18.9°C17.1°C21.7°C
Canterbury19°C17.1°C22°C
Seasalter19°C17.1°C22°C
Shoeburyness19.2°C17.1°C22.6°C

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Southend-on-Sea 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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