Water temperature in Goleen in September

Is it warm enough to swim in Goleen in September? Average water temperature in Goleen in September is 15°C and therefore is not suitable for comfortable swimming. The warmest sea in Goleen in September is 17.7°C, and the coldest is 12.3°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Goleen

Changes water temperature in Goleen in September 2025, 2024

To get an accurate forecast for the water temperature in Goleen for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Goleen, 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	15.6°C	14.5°C	13.8°C	17.4°C
2 September	15.8°C	14.8°C	13.7°C	17.1°C
3 September	16°C	14.9°C	13.4°C	17.1°C
4 September	15.5°C	14.7°C	13.6°C	17.2°C
5 September	16°C	15°C	13.7°C	16.9°C
6 September	15.8°C	15.2°C	13°C	17.3°C
7 September	15.4°C	14.9°C	13.1°C	17.6°C
8 September	15.3°C	15.2°C	13.2°C	17.3°C
9 September	15.4°C	15°C	13°C	17.7°C
10 September	15°C	14.7°C	13.3°C	17.7°C
11 September	14.2°C	14.5°C	13°C	17.1°C
12 September	13.9°C	14.4°C	13°C	17.1°C
13 September	14.2°C	14.4°C	13.2°C	16.9°C
14 September	14.3°C	14.4°C	13.2°C	16.8°C
15 September	13.6°C	14.8°C	13.3°C	16.7°C

Day	2025	2024	Min	Max
16 September	13.7°C	15.1°C	13.3°C	16.6°C
17 September	14.2°C	15.1°C	12.5°C	16.6°C
18 September	14.2°C	15.1°C	12.7°C	16.7°C
19 September	14.3°C	15.1°C	12.7°C	16.7°C
20 September	13.9°C	15.2°C	12.4°C	16.5°C
21 September	13.6°C	15.2°C	12.3°C	16.4°C
22 September	13.5°C	15.3°C	12.5°C	16.8°C
23 September	13.7°C	15.1°C	12.7°C	16.7°C
24 September	13.5°C	15.1°C	12.7°C	16.5°C
25 September	13.6°C	15.2°C	12.8°C	16.5°C
26 September		15°C	13.9°C	16.1°C
27 September		15.1°C	13°C	16.2°C
28 September		15°C	13.8°C	16.2°C
29 September		14.9°C	13.9°C	14.9°C
30 September		15.1°C	13.1°C	16.4°C

Average water temperature in Goleen in September over a decade

2015	2016	2017	2018	2019
15°C	14.9°C	14.2°C	14.4°C	14.2°C

2020	2021	2022	2023	2024
14.9°C	16.2°C	16.6°C	16.1°C	14.9°C

Goleen 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
Waterville	14.7°C	12.9°C	17.2°C
Clonakilty	15.4°C	12.5°C	18.1°C
Inchydoney	15.4°C	12.6°C	18.5°C
Rossbeigh Strand	14.8°C	13.1°C	17.4°C
Kilbrittain	15.4°C	12.7°C	18.2°C
Courtmacsherry	15.4°C	12.7°C	18.2°C
Inch Beach	14.8°C	13.2°C	17.7°C
Garretstown Beach	15.4°C	12.8°C	18.3°C
Dingle	14.7°C	12.9°C	17.2°C
Ventry	14.7°C	12.9°C	17.1°C

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Our report for Goleen 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.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature