Water temperature in Marble Hill in September

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Is it warm enough to swim in Marble Hill in September? Average water temperature in Marble Hill in September is 14.6°C and therefore is not suitable for comfortable swimming. The warmest sea in Marble Hill in September is 16.8°C, and the coldest is 12.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Marble Hill

Changes water temperature in Marble Hill in September 2025, 2024

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

Sea temperature

Sea state

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 September	16.1°C	14.6°C	14.1°C	16.1°C
2 September	16°C	14.6°C	14°C	16°C
3 September	16.1°C	14.7°C	13.9°C	16.1°C
4 September	16.1°C	14.6°C	13.7°C	16.1°C
5 September	15.9°C	14.8°C	13.7°C	16°C
6 September		14.7°C	14.4°C	16°C
7 September		14.8°C	14.1°C	16.8°C
8 September		14.8°C	14.3°C	16.7°C
9 September		14.9°C	14.7°C	16.5°C
10 September		14.9°C	14.2°C	16.5°C
11 September		14.9°C	14.4°C	16.5°C
12 September		14.8°C	14.2°C	16.4°C
13 September		14.8°C	14.7°C	16.3°C
14 September		14.7°C	13.9°C	16.1°C
15 September		14.5°C	13.8°C	15.9°C

Day	2024	Min	Max
16 September	14.4°C	14.3°C	15.8°C
17 September	14.6°C	13.6°C	15.6°C
18 September	14.6°C	13.6°C	15.4°C
19 September	14.5°C	13.8°C	15.4°C
20 September	14.6°C	13.6°C	15.2°C
21 September	14.6°C	14°C	15.2°C
22 September	14.6°C	14.1°C	15.1°C
23 September	14.5°C	13.5°C	15°C
24 September	14.3°C	13.4°C	15.2°C
25 September	14.2°C	13.5°C	15°C
26 September	14.2°C	13.5°C	14.9°C
27 September	14°C	13.5°C	14.9°C
28 September	13.8°C	13.2°C	14.8°C
29 September	13.8°C	12.9°C	14.5°C
30 September	13.7°C	13.1°C	14.5°C

Marble Hill water temp chart in September

Average water temperature in Marble Hill in September over a decade

2015	2016	2017	2018	2019
13.8°C	14.7°C	14.5°C	14.3°C	14.8°C

2020	2021	2022	2023	2024
14.6°C	15°C	15.4°C	15.6°C	14.5°C

Marble Hill 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 September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Derry	14.6°C	12.8°C	17°C
Moville	14.6°C	12.8°C	16.9°C
Portstewart	14.4°C	13°C	16°C
Castlerock	14.4°C	13°C	16°C
Donegal	14.9°C	13.4°C	17.7°C
Killybegs	15°C	13.4°C	17.8°C
Portrush	14.4°C	13°C	15.9°C
Bundoran	15°C	13.5°C	17.6°C
Portballintrae	14.3°C	13°C	15.6°C
Mullaghmore	15°C	13.5°C	17.3°C

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Our report for Marble Hill 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