Gdynia Śródmieście — Sea temperature now
Polish Baltic sandy beach near Gdynia.
Mild water with a light chop and a light breeze — comfortable conditions for most swimmers.
Location
Gdynia Śródmieście on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Monthly sea temperature averages
Typical year-round water temperature, based on regional climatology.
Best time to swim in Gdynia Śródmieście
The sea in Gdynia Śródmieście peaks in August, when the water averages around 19°C.
On average, 0 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Outside peak season the water drops toward 7°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 2°C, when cold-water swimmers dominate the coast.
Gdynia Śródmieście sea temperature history
Long-term climatology for Gdynia Śródmieście shows an annual mean sea temperature of 10°C, ranging from 2°C in winter to 19°C at the summer peak.
The seasonal swing is roughly 17°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Gdynia Śródmieście, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Gdynia Śródmieście sea temperature: frequently asked questions
What is the warmest month to swim in Gdynia Śródmieście?
August is the warmest month in Gdynia Śródmieście, when the sea averages about 19°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Gdynia Śródmieście?
The coldest month in Gdynia Śródmieście is typically February, when the water averages around 2°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Gdynia Śródmieście without a wetsuit?
The sea in Gdynia Śródmieście rarely climbs above 20°C, so a wetsuit is recommended year-round for anything longer than a quick dip.
Do I need a wetsuit in Gdynia Śródmieście?
Outside peak summer the water in Gdynia Śródmieście drops toward 7°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Gdynia Śródmieście?
The long-term annual mean sea temperature in Gdynia Śródmieście is about 10°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Gdynia Śródmieście?
The live reading at the top of this page shows the current sea temperature in Gdynia Śródmieście, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
| Month | Sea | Comfort |
|---|---|---|
| Jan | 3°C | Cold |
| Feb | 2°C | Cold |
| Mar | 3°C | Cold |
| Apr | 5°C | Cold |
| May | 9°C | Cold |
| Jun | 14°C | Bracing |
| Jul | 18°C | Pleasant |
| Aug ⭐ | 19°C | Pleasant |
| Sep | 16°C | Bracing |
| Oct | 12°C | Cold |
| Nov | 8°C | Cold |
| Dec | 5°C | Cold |