NOAA SATELLITE DATA (1991–2020 30-YEAR CLIMATOLOGY)

Poland Sea Temperature in November

Historical 30-year sea surface temperatures across 9 coastlines in Poland for November. 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.

8.4°C

Bracing / Crispaverage across 9 surveyed coastlines in Poland, November

Ranges 7.6°C at Sopot Beach & Pier to 9.2°C at Hel Peninsula Beach.
No coastline in Poland reaches 21°C in any month — this is wetsuit or cold-water swimming.
10.6°C cooler than Poland’s August peak of 19.0°C (see August).

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Baltic Sea Extreme Seasonal Range

The Baltic Sea is a shallow, brackish semi-enclosed basin with low salinity (fed by large river basins) and restricted ocean exchange through the Danish Straits. This causes the widest annual water temperature swing in Europe: warming rapidly from 9.4°C in May to 18.6°C in August, then cooling quickly down to 2–4°C in winter.

Oceanographic Phenomenon:Brackish Semi-Enclosed Basin Dynamics

Thermal Lag Characteristic:Minimal deep thermal lag: the shallow brackish Baltic lacks deep-sea thermal inertia, causing water temperatures to drop precipitously by mid-September (14.5°C).

Peak Bathing Average:August (18.6°C)

Statutory Tourism Sources:

polska.travel pomorskie.travel krokowa.pl miedzyzdroje.pl visit.swinoujscie.pl

The November 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 November, 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)

21.8°C

Effortless swimming

TURKEY (ANTALYA / KAŞ)

21.6°C

Warm bathwater

GREECE (CRETE / RHODES)

20.2°C

Extended season

MALTA & GOZO

20.4°C

Crystal clear