Water temperature in Saint Leonards-on-Sea in August

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Is it warm enough to swim in Saint Leonards-on-Sea in August? Average water temperature in Saint Leonards-on-Sea in August is 17.9°C and therefore is not suitable for comfortable swimming. The warmest sea in Saint Leonards-on-Sea in August is 20.4°C, and the coldest is 15.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Saint Leonards-on-Sea

Changes water temperature in Saint Leonards-on-Sea in August 2025, 2024

To get an accurate forecast for the water temperature in Saint Leonards-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 Saint Leonards-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.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	18.4°C	18.9°C	15.9°C	19°C
2 August	18.5°C	18.9°C	16.2°C	19.3°C
3 August	18.4°C	18.5°C	16.3°C	19.2°C
4 August	18.7°C	18.8°C	16.4°C	19.3°C
5 August	18.4°C	19.2°C	16.4°C	19.5°C
6 August	18.6°C	18.8°C	16.5°C	19.4°C
7 August	18.4°C	18.9°C	16.2°C	19.5°C
8 August	18.4°C	18.1°C	16.4°C	19.5°C
9 August	18.8°C	19.3°C	16.6°C	19.8°C
10 August	19°C	19.2°C	16.4°C	20°C
11 August	19.4°C	19.9°C	16.5°C	20.2°C
12 August	19.2°C	19.4°C	16.4°C	20.4°C
13 August	19°C	19.7°C	16.5°C	20.2°C
14 August	19°C	19.7°C	16.7°C	19.7°C
15 August	19.4°C	19.1°C	17°C	19.7°C

Day	2025	2024	Min	Max
16 August	19.1°C	19.6°C	16.7°C	19.7°C
17 August	19.3°C	19.6°C	16.8°C	19.8°C
18 August	19.1°C	19.4°C	16.8°C	19.9°C
19 August	19.1°C	19.3°C	17.1°C	20.1°C
20 August	19°C	19.3°C	17.1°C	20.1°C
21 August	19°C	19°C	17.1°C	20.1°C
22 August	18.7°C	18.8°C	17.1°C	19.6°C
23 August	19°C	19°C	17.1°C	19.9°C
24 August	18.9°C	18.7°C	17.1°C	20.1°C
25 August	19°C	18.7°C	17.1°C	20.4°C
26 August	19.2°C	18.8°C	17.1°C	20.3°C
27 August	19°C	19.1°C	17°C	20.3°C
28 August	19.2°C	19.3°C	17°C	20°C
29 August	19.2°C	19.3°C	16.8°C	19.8°C
30 August	19.2°C	19.1°C	16.9°C	19.7°C
31 August	19.1°C	18.8°C	16.8°C	19.6°C

Saint Leonards-on-Sea water temp chart in August

Average water temperature in Saint Leonards-on-Sea in August over a decade

2016	2017	2018	2019	2020
17.8°C	17.9°C	19°C	18.6°C	19°C

2021	2022	2023	2024	2025
17.9°C	19.8°C	18.4°C	19.1°C	18.5°C

Saint Leonards-on-Sea sea state in August

Chart comparing the height of waves in Saint Leonards-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 Saint Leonards-on-Sea in August

Saint Leonards-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

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

	Avr	Min	Max
Pett Level	17.8°C	15.9°C	20.2°C
Fairlight Cove	17.8°C	15.9°C	20.2°C
Bexhill-on-Sea	17.9°C	15.9°C	20.4°C
Winchelsea Beach	17.8°C	15.9°C	20.3°C
Camber Sands	17.9°C	15.9°C	20.4°C
Rye	17.9°C	15.9°C	20.4°C
Normans Bay	18°C	15.9°C	20.5°C
Pevensey Bay	17.9°C	15.8°C	20.2°C
Dungeness	17.6°C	15.8°C	19.9°C
Greatstone	17.7°C	15.8°C	20°C

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Our report for Saint Leonards-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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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature