Costão Sea Water Temperature
A subtropical beach on the Río de la Plata, warmest around February at about 26.4°C. Today's reading, 7-day forecast, and monthly averages below.
Costão water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Costão Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Costão occurs inJanuary, February, March, April, December — peaking at26.4°C (79.5°F) in February.
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 | 24.5°C | 26.1°C | 28°C | Warm & Ideal (24°C – 28°C) |
| February | 23.5°C | 26.4°C | 29.1°C | Warm & Ideal (24°C – 28°C) |
| March | 22.7°C | 25.7°C | 27.6°C | Warm & Ideal (24°C – 28°C) |
| April | 21.9°C | 24.2°C | 26.4°C | Warm & Ideal (24°C – 28°C) |
| May | 20°C | 22°C | 25°C | Comfortable (20°C – 24°C) |
| June | 17.5°C | 20°C | 23°C | Comfortable (20°C – 24°C) |
| July | 15°C | 18.2°C | 22°C | Cool / Refreshing (16°C – 20°C) |
| August | 16.2°C | 18.2°C | 20.5°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 17.3°C | 19.2°C | 21.9°C | Cool / Refreshing (16°C – 20°C) |
| October | 18.3°C | 20.9°C | 23.6°C | Comfortable (20°C – 24°C) |
| November | 20.5°C | 22.8°C | 24.3°C | Comfortable (20°C – 24°C) |
| December | 22.7°C | 24.7°C | 27°C | Warm & Ideal (24°C – 28°C) |
Swimming FAQs for Costão
Is the sea warm enough to swim in Costão today?
Typical sea surface temperature in Costão this time of year is 19.2°C (66.6°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.
What are the warmest months for swimming in Costão?
The highest water temperatures in Costão typically occur duringJanuary, February, March, April, December, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Costão in September?
Historically in September, water temperatures in Costão average around19.2°C (66.6°F), fluctuating between a recorded minimum of 17.3°C and a maximum of 21.9°C.