Sulina Beach Water Temperature & Swim Forecast
Romanian Black Sea beach near Sulina.
Cool water with calm seas and a light breeze — tough conditions for unprotected swimming.
Current model estimate · updated 0 min ago · modelled, not a buoy measurement. How accurate is this?
Location
Sulina 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.
4/3mm fullsuit
At 13.0°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.
- + Optional 3mm boots
Recommendation tuned for Sulina Beach's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Sulina Beach swimming conditions summary
- Water temperature
- 13.0°C
- Water feels
- Bracing
- Swimmable today
- Only with thermal protection
- Swim conditions score
- 53/100 · Fair
- Wetsuit needed
- 4/3mm fullsuit
- Air temperature
- 9.4°C
- Waves
- 0.2 m · flat
- Wind
- 7 km/h · light breeze
- UV index
- 2 · low
- Average sea temperature (November)
- 12.0 °C
- Warmest months to swim
- July, August, September
At 13.0°C you need a 4/3mm fullsuit, and many surfers add neoprene boots. Current model estimate · updated 0 min ago. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.
Frequently asked questions
Can I swim at Sulina Beach right now?
The sea at Sulina Beach is currently 13.0°C — cold swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.
What will the sea temperature be at Sulina Beach next week?
Based on long-term November averages and the latest marine model, expect the sea around Sulina Beach to sit close to 12.0°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Sulina Beach?
July – August – September are typically the warmest months to swim at Sulina Beach, with sea temperatures at their seasonal peak.
Do I need a wetsuit at Sulina Beach?
With water currently at 13.0°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.
Can I swim at Sulina Beach today?
The sea is currently 13.0°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.
- • Located in Tulcea, Romania (Black Sea).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Sulina Beach
The sea in Sulina 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.
Sulina Beach sea temperature history
Long-term climatology for Sulina 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 Sulina 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.
Sulina Beach sea temperature: frequently asked questions
What is the warmest month to swim in Sulina Beach?
August is the warmest month in Sulina Beach, when the sea averages about 25°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Sulina Beach?
The coldest month in Sulina Beach is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Sulina Beach without a wetsuit?
The main swimming season in Sulina 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 Sulina Beach?
Outside peak summer the water in Sulina 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 Sulina Beach?
The long-term annual mean sea temperature in Sulina Beach is about 14°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Sulina Beach?
The live reading at the top of this page shows the current sea temperature in Sulina 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 |
Nearby beaches
The closest coastline, with live water temperatures.