San Terenzo Water Temperature & Swim Forecast
Family beach near Lerici.
Warm water with a light chop and a light breeze — great swimming conditions.
Model estimate · modelled, not a buoy measurement. How accurate is this?
Location
San Terenzo on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
No wetsuit
At 24.5°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Recommendation tuned for San Terenzo's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
San Terenzo swimming conditions summary
- Water temperature
- 24.5°C
- Water feels
- Warm
- Swimmable today
- Yes — comfortable for most swimmers
- Swim conditions score
- 90/100 · Excellent
- Wetsuit needed
- No wetsuit
- Air temperature
- —
- Waves
- —
- Wind
- —
- UV index
- —
- Average sea temperature (September)
- 24.0 °C
- Warmest months to swim
- July, August, September
At 24.5°C the water is warm enough to swim and surf in just a swimsuit or boardshorts. Model estimate. 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 San Terenzo right now?
The sea at San Terenzo is currently 24.5°C — excellent 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 San Terenzo next week?
Based on long-term September averages and the latest marine model, expect the sea around San Terenzo to sit close to 21.9°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 San Terenzo?
July – August – September are typically the warmest months to swim at San Terenzo, with sea temperatures at their seasonal peak.
Do I need a wetsuit at San Terenzo?
With water currently at 24.5°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 San Terenzo today?
The sea is currently 24.5°C — excellent swimming conditions. Most swimmers will find it pleasant.
- • Located in Liguria, Italy (Ligurian 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 San Terenzo
The sea in San Terenzo peaks in August, when the water averages around 26°C.
The main swimming season runs from June – October, when surface temperatures stay comfortable for extended sessions.
On average, 5 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like May and November are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 16°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 13°C, when cold-water swimmers dominate the coast.
San Terenzo sea temperature history
Long-term climatology for San Terenzo shows an annual mean sea temperature of 19°C, ranging from 13°C in winter to 26°C at the summer peak.
The seasonal swing is roughly 13°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 San Terenzo, 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.
San Terenzo sea temperature: frequently asked questions
What is the warmest month to swim in San Terenzo?
August is the warmest month in San Terenzo, when the sea averages about 26°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in San Terenzo?
The coldest month in San Terenzo is typically February, when the water averages around 13°C. Cold-water swimmers and surfers dominate this period.
When can you swim in San Terenzo without a wetsuit?
The main swimming season in San Terenzo runs from June – October — about 5 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 San Terenzo?
Outside peak summer the water in San Terenzo drops toward 16°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 San Terenzo?
The long-term annual mean sea temperature in San Terenzo is about 19°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in San Terenzo?
The live reading at the top of this page shows the current sea temperature in San Terenzo, 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 – Oct
| Month | Sea | Comfort |
|---|---|---|
| Jan | 14°C | Bracing |
| Feb | 13°C | Cold |
| Mar | 14°C | Bracing |
| Apr | 16°C | Bracing |
| May | 19°C | Pleasant |
| Jun | 23°C | Warm |
| Jul | 25°C | Warm |
| Aug ⭐ | 26°C | Hot |
| Sep | 24°C | Warm |
| Oct | 21°C | Pleasant |
| Nov | 18°C | Pleasant |
| Dec | 15°C | Bracing |
Nearby beaches
The closest coastline, with live water temperatures.