NOAA SATELLITE DATA (1991–2020 30-YEAR CLIMATOLOGY)
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Germany Sea Temperature in September

Historical 30-year sea surface temperatures across 11 coastlines in Germany for September. Derived from NOAA 0.25° blended satellite and in-situ marine observations.

Climatology Notice: Temperatures represent the 30-year long-term historical average (1991–2020 normal), not a live single-day sensor forecast.
16.1°C
Bracing / Crispaverage across 11 surveyed coastlines in Germany, September
  • Ranges 15.6°C at Prerow Beach to 17.0°C at Norderney Weststrand.
  • No coastline in Germany reaches 21°C in any month — this is wetsuit or cold-water swimming.
  • 2.5°C cooler than Germany’s August peak of 18.6°C (see August).

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The September Thermal Lag Advantage

Because seawater has a high specific heat capacity, it acts as a massive thermal battery. Southern European and Mediterranean basins absorb solar energy all summer, reaching maximum heat storage by late August. In September, while air temperatures drop, the water releases heat slowly, which creates sea temperatures that are typically 3°C to 5°C warmer than in June.

CYPRUS (AYIA NAPA / PROTARAS)
27.5°C
Effortless swimming
TURKEY (ANTALYA / KAŞ)
27.3°C
Warm bathwater
GREECE (CRETE / RHODES)
25.4°C
Extended season
MALTA & GOZO
26.1°C
Crystal clear
Field Guides:October Swimming Guide November Swimming Guide

Germany Beaches in September

Individual coordinate lookups from NOAA 0.25° marine grid.

Showing 11 coastlines
Heringsdorf Beach
#2 in September
16.5°C
Germany flagUsedom, Mecklenburg-Vorpommern, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
11.5°
J
15.8°
J
18.7°
A
19.4°
S
16.5°
O
12.0°
N
7.6°
View Full Beach Guide
Binz Beach
#3 in September
16.4°C
Germany flagRugen, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
10.8°
J
14.9°
J
18.0°
A
19.1°
S
16.4°
O
12.3°
N
8.3°
View Full Beach Guide
Kniepsand
#4 in September
16.3°C
Germany flagAmrum, North Frisia, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
11.1°
J
14.8°
J
17.4°
A
18.5°
S
16.3°
O
12.8°
N
9.2°
View Full Beach Guide
Kampen Beach
#5 in September
16.2°C
Germany flagSylt, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
11.0°
J
14.7°
J
17.3°
A
18.5°
S
16.2°
O
12.5°
N
8.9°
View Full Beach Guide
Warnemünde
#10 in September
15.7°C
Germany flagRostock, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
10.1°
J
14.4°
J
17.3°
A
18.0°
S
15.7°
O
12.2°
N
8.7°
View Full Beach Guide
Prerow Beach
#11 in September
15.6°C
Germany flagDarß Peninsula, Germany
● Bracing / Crisp
NOAA Season Curve (May–Oct):
M
10.0°
J
14.4°
J
17.3°
A
18.0°
S
15.6°
O
12.2°
N
8.7°
View Full Beach Guide

Explore Sea Temperatures by Country

Spain(23.6°C)Italy(25.9°C)Turkey(27.3°C)France(22.4°C)Greece(25.4°C)Cyprus(27.7°C)Croatia(25.2°C)Albania(25.5°C)Montenegro(25.7°C)Malta(26.7°C)Bulgaria(25.1°C)Romania(24.7°C)Slovenia(25.4°C)Portugal(20.7°C)Poland(19°C)Sweden(18.3°C)Netherlands(18.5°C)Bosnia & Herzegovina(25.2°C)Monaco(24.6°C)Latvia(18.5°C)Estonia(18°C)Lithuania(18.8°C)Germany(18.6°C)Denmark(18°C)Norway(15.3°C)Belgium(18.7°C)Faroe Islands(10.9°C)United Kingdom(16.1°C)Ireland(15.9°C)Iceland(10.9°C)Finland(16.6°C)