World sea water temperatures

Water temperature in Holywell in March

Is it warm enough to swim in Holywell in March? Average water temperature in Holywell in March is 9.3°C and therefore is not suitable for comfortable swimming. The warmest sea in Holywell in March is 10.6°C, and the coldest is 7.5°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Holywell

Changes water temperature in Holywell in March 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
1 March9.9°C9.8°C8.1°C10.1°C
2 March9.7°C9.7°C8.2°C10°C
3 March9.8°C9.8°C7.8°C10.2°C
4 March9.8°C9.7°C7.7°C10.1°C
5 March9.8°C9.6°C7.8°C10°C
6 March9.7°C9.6°C7.5°C10.1°C
7 March9.8°C9.6°C7.7°C10.1°C
8 March9.7°C9.6°C7.8°C10.1°C
9 March9.7°C9.6°C7.9°C10.3°C
10 March9.8°C9.7°C8°C10.2°C
11 March9.8°C9.6°C8°C10.1°C
12 March9.9°C9.4°C8°C10.1°C
13 March9.9°C9.4°C8°C10.3°C
14 March9.9°C9.4°C7.9°C10.3°C
15 March9.9°C9.6°C8°C10.3°C
Day 2025 2024 Min Max
16 March9.9°C9.6°C7.9°C10.4°C
17 March9.8°C10.1°C7.9°C10.4°C
18 March10°C9.9°C7.9°C10.3°C
19 March9.8°C9.9°C8.1°C10.2°C
20 March9.5°C9.9°C8.1°C10°C
21 March9.7°C10°C8.1°C10.1°C
22 March9.7°C10.4°C8°C10.4°C
23 March9.7°C10.4°C8.1°C10.4°C
24 March9.6°C10.3°C8.2°C10.3°C
25 March10.4°C10.3°C8.1°C10.4°C
26 March10.6°C10.2°C7.9°C10.6°C
27 March10.4°C10.2°C7.6°C10.4°C
28 March10.2°C10.3°C7.8°C10.5°C
29 March10.1°C10.4°C7.8°C10.4°C
30 March10.2°C10.3°C8°C10.6°C
31 March10.2°C10.3°C8°C10.6°C
Holywell water temp chart in March

Average water temperature in Holywell in March over a decade

20162017201820192020
9.3°C10°C8.1°C9.9°C9.2°C
20212022202320242025
9.5°C9.7°C9.6°C9.9°C9.9°C

Holywell sea state in March

Chart comparing the height of waves in Holywell in March 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 Holywell in March

Holywell 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 March?

Want to know where the water temperature in March 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 March. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Watergate Bay9.3°C7.4°C10.6°C
Fistral Beach9.3°C7.4°C10.6°C
Mawgan Porth9.3°C7.4°C10.7°C
Porthtowan9.3°C7.6°C10.6°C
Portreath9.3°C7.6°C10.6°C
Porthminster Beach9.4°C7.7°C10.6°C
Constantine Bay9.3°C7.4°C10.5°C
Porthcothan9.3°C7.4°C10.5°C
Treyarnon9.3°C7.4°C10.5°C
Hayle9.4°C7.7°C10.6°C

Cornwall photo gallery

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  • Tide Going Out After The Rain, by Jennifer Wimborne.

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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 Holywell 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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