Water temperature in Weymouth (Dorset) in July

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Is it warm enough to swim in Weymouth in July? Average water temperature in Weymouth in July is 16.4°C and therefore is not suitable for comfortable swimming. The warmest sea in Weymouth in July is 18.5°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 Weymouth

Changes water temperature in Weymouth in July 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 July	16.7°C	16°C	14°C	16.7°C
2 July	17°C	15.8°C	14°C	17°C
3 July	16.9°C	16°C	14.1°C	16.9°C
4 July	16.9°C	16.2°C	14.2°C	16.9°C
5 July	17°C	16.2°C	14.3°C	17°C
6 July	17.2°C	16.1°C	14.4°C	17.2°C
7 July	17.3°C	16.1°C	14.4°C	17.3°C
8 July	17.3°C	16.1°C	14.9°C	17.3°C
9 July	17.5°C	16.2°C	14.7°C	17.5°C
10 July	17.6°C	16.2°C	15°C	17.6°C
11 July	17.5°C	16.1°C	15°C	17.5°C
12 July	17.7°C	16.4°C	15°C	17.7°C
13 July	17.7°C	16.3°C	14.9°C	17.7°C
14 July	17.6°C	16.5°C	15°C	17.6°C
15 July	18°C	16.6°C	15.1°C	18°C

Day	2025	2024	Min	Max
16 July	17.7°C	16.4°C	15.1°C	17.7°C
17 July	17.9°C	16.4°C	15.2°C	17.9°C
18 July	17.8°C	16.9°C	15.2°C	17.8°C
19 July	17.7°C	17°C	15.2°C	17.7°C
20 July	18.1°C	16.8°C	15.3°C	18.1°C
21 July	18.2°C	16.9°C	15.4°C	18.2°C
22 July	18.1°C	17.1°C	15.4°C	18.2°C
23 July	18.1°C	17.1°C	15.3°C	18.3°C
24 July	17.9°C	17.1°C	15.6°C	18.2°C
25 July	18.2°C	17.1°C	15.9°C	18.4°C
26 July	18.2°C	17.4°C	16.1°C	18.4°C
27 July	18.3°C	17.4°C	16.1°C	18.3°C
28 July	18.3°C	17.4°C	16°C	18.3°C
29 July	18.4°C	17.5°C	15.8°C	18.4°C
30 July	18.5°C	17.6°C	15.9°C	18.5°C
31 July	18.4°C	17.9°C	15.7°C	18.4°C

Average water temperature in Weymouth in July over a decade

2016	2017	2018	2019	2020
15.9°C	16.8°C	17.3°C	16.7°C	16.4°C

2021	2022	2023	2024	2025
16.1°C	17.1°C	16.8°C	16.7°C	17.7°C

Weymouth sea state in July

Chart comparing the height of waves in Weymouth in July 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.

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

	Avr	Min	Max
Portland Harbour	16.4°C	14°C	18.5°C
Fortuneswell	16.4°C	14°C	18.4°C
Bowleaze Cove	16.5°C	14.1°C	18.5°C
Osmington Mills	16.5°C	14.1°C	18.6°C
Chesil Beach	16.4°C	14°C	18.5°C
Ringstead Bay	16.5°C	14.1°C	18.7°C
Overcombe	16.5°C	14.1°C	18.6°C
Durdle Door	16.5°C	14.1°C	18.7°C
Lulworth Cove	16.6°C	14.1°C	18.8°C
Worbarrow Beach	16.7°C	14.2°C	19°C

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Our report for Weymouth 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