Water temperature in Horumersiel in August

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Is it warm enough to swim in Horumersiel in August? Average water temperature in Horumersiel in August is 19°C and therefore is not suitable for comfortable swimming. The warmest sea in Horumersiel in August is 22.5°C, and the coldest is 16.6°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Horumersiel

Changes water temperature in Horumersiel in August 2025, 2024

To get an accurate forecast for the water temperature in Horumersiel for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Horumersiel, 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	19.5°C	19.5°C	17.1°C	21.6°C
2 August	19.3°C	19.9°C	17.1°C	21.7°C
3 August	19.1°C	19.8°C	17.6°C	21.6°C
4 August	19.1°C	19.6°C	17.4°C	22.5°C
5 August	18.7°C	19.5°C	17.2°C	22.1°C
6 August	18.7°C	19.8°C	17.5°C	22°C
7 August	18.7°C	20.1°C	18°C	21.4°C
8 August	18.8°C	20.4°C	17.9°C	21.7°C
9 August	18.7°C	20.1°C	17.6°C	21.8°C
10 August	18.9°C	20°C	17.5°C	21.1°C
11 August	19.3°C	19.6°C	17.5°C	21.2°C
12 August	19°C	20.2°C	17.7°C	21.2°C
13 August	19.4°C	20.6°C	17.7°C	21.5°C
14 August	19.6°C	20.8°C	17.8°C	21.3°C
15 August	19.9°C	20.7°C	17.7°C	21.6°C

Day	2025	2024	Min	Max
16 August	20.2°C	20.5°C	17.8°C	21.9°C
17 August	20°C	20.7°C	17.7°C	21.9°C
18 August	19.8°C	20.4°C	17.7°C	21.6°C
19 August	19.7°C	20.4°C	17.5°C	21.1°C
20 August	20.2°C	20.4°C	17.4°C	21.6°C
21 August	19.9°C	20.2°C	17.3°C	22°C
22 August	19.7°C	19.8°C	17.3°C	21.6°C
23 August	18.9°C	19.4°C	17.2°C	21.3°C
24 August	18.4°C	19.8°C	16.7°C	20.8°C
25 August	19°C	19.2°C	16.6°C	21.2°C
26 August	18.9°C	19.1°C	16.6°C	20.8°C
27 August	18.5°C	19°C	16.7°C	20.6°C
28 August	18°C	19.4°C	16.9°C	20.2°C
29 August	18.4°C	19.3°C	17.1°C	20.1°C
30 August	18.5°C	19.1°C	17.2°C	20.4°C
31 August	18.3°C	19°C	16.9°C	20.4°C

Average water temperature in Horumersiel in August over a decade

2016	2017	2018	2019	2020
18.9°C	18.6°C	20.3°C	19.1°C	20.2°C

2021	2022	2023	2024	2025
18.7°C	20°C	18.7°C	19.9°C	19°C

Horumersiel sea state in August

Chart comparing the height of waves in Horumersiel 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.

Horumersiel 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
Burhave	19.4°C	16.6°C	23.7°C
Langeoog	18.9°C	16.9°C	21.7°C
Baltrum	19°C	17°C	21.6°C
Cuxhaven	20°C	17.2°C	23.2°C
Norderney	19.1°C	17.1°C	22.2°C
Norden	19.2°C	16.7°C	22.9°C
Helgoland	18.5°C	16.7°C	21.1°C
Juist	19.2°C	17.1°C	22.3°C
Neufelderkoog	19.7°C	17°C	23.3°C
Emden	19.3°C	16.4°C	22.8°C

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Our report for Horumersiel 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