Mangalia Beach — Sea temperature now
Romanian Black Sea beach near Mangalia.
Pleasant water with a light chop and a light breeze — great swimming conditions.
Location
Mangalia Beach 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 Mangalia Beach
The sea in Mangalia Beach peaks in August, when the water averages around 25°C.
The main swimming season runs from June – September, when surface temperatures stay comfortable for extended sessions.
On average, 4 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like May and October are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 10°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 3°C, when cold-water swimmers dominate the coast.
Mangalia Beach sea temperature history
Long-term climatology for Mangalia Beach shows an annual mean sea temperature of 14°C, ranging from 3°C in winter to 25°C at the summer peak.
The seasonal swing is roughly 22°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 Mangalia Beach, 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.
Mangalia Beach sea temperature: frequently asked questions
What is the warmest month to swim in Mangalia Beach?
August is the warmest month in Mangalia Beach, when the sea averages about 25°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Mangalia Beach?
The coldest month in Mangalia Beach is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Mangalia Beach without a wetsuit?
The main swimming season in Mangalia Beach runs from June – September — about 4 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Mangalia Beach?
Outside peak summer the water in Mangalia Beach drops toward 10°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 Mangalia Beach?
The long-term annual mean sea temperature in Mangalia Beach is about 14°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Mangalia Beach?
The live reading at the top of this page shows the current sea temperature in Mangalia Beach, 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
Best swim months: Jun – Jul – Aug – Sep
| Month | Sea | Comfort |
|---|---|---|
| Jan | 4°C | Cold |
| Feb | 3°C | Cold |
| Mar | 5°C | Cold |
| Apr | 9°C | Cold |
| May | 15°C | Bracing |
| Jun | 21°C | Pleasant |
| Jul | 24°C | Warm |
| Aug ⭐ | 25°C | Warm |
| Sep | 22°C | Warm |
| Oct | 17°C | Bracing |
| Nov | 12°C | Cold |
| Dec | 7°C | Cold |