San Alfonso del Mar Sea Water Temperature
A temperate beach on the Río de la Plata, warmest around January at about 16.5°C. Today's reading, 7-day forecast, and monthly averages below.
San Alfonso del Mar water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
San Alfonso del Mar Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in San Alfonso del Mar occurs inJanuary, February, March, December — peaking at16.5°C (61.7°F) in January.
Year-Round Water Temperature Curve (°C / °F)
Hover a bar for detailsFull 12-month data table — min / avg / max & swimming comfort
| Month | Min Water Temp | Average Water Temp | Max Water Temp | Swimming Comfort |
|---|---|---|---|---|
| January | 13.7°C | 16.5°C | 19.3°C | Cool / Refreshing (16°C – 20°C) |
| February | 14.5°C | 16.5°C | 18.4°C | Cool / Refreshing (16°C – 20°C) |
| March | 13.3°C | 16.4°C | 18.2°C | Cool / Refreshing (16°C – 20°C) |
| April | 12.7°C | 14.9°C | 17°C | Very Cold (< 16°C) |
| May | 12.6°C | 13.9°C | 15.7°C | Very Cold (< 16°C) |
| June | 11.7°C | 13.5°C | 14.8°C | Very Cold (< 16°C) |
| July | 11.3°C | 12.5°C | 13.8°C | Very Cold (< 16°C) |
| August | 11.4°C | 12.4°C | 13.7°C | Very Cold (< 16°C) |
| SeptemberCurrent | 11.7°C | 12.6°C | 13.6°C | Very Cold (< 16°C) |
| October | 11.5°C | 12.8°C | 13.8°C | Very Cold (< 16°C) |
| November | 11.8°C | 14°C | 15.4°C | Very Cold (< 16°C) |
| December | 13.3°C | 15.4°C | 17.9°C | Very Cold (< 16°C) |
Swimming FAQs for San Alfonso del Mar
Is the sea warm enough to swim in San Alfonso del Mar today?
Typical sea surface temperature in San Alfonso del Mar this time of year is 12.6°C (54.7°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.
What are the warmest months for swimming in San Alfonso del Mar?
The highest water temperatures in San Alfonso del Mar typically occur duringJanuary, February, March, December, when monthly averages reach peak seasonal levels.
What is the typical water temperature in San Alfonso del Mar in September?
Historically in September, water temperatures in San Alfonso del Mar average around12.6°C (54.7°F), fluctuating between a recorded minimum of 11.7°C and a maximum of 13.6°C.