San Luis Beach Sea Water Temperature
A subtropical beach on the Gulf of Mexico, warmest around August at about 30.1°C. Today's reading, 7-day forecast, and monthly averages below.
San Luis Beach water temperature
Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling.
7-Day Water Temperature Forecast
San Luis Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in San Luis Beach occurs inMay, June, July, August, September, October — peaking at30.1°C (86.2°F) in August.
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 | 11.6°C | 15°C | 18.8°C | Very Cold (< 16°C) |
| February | 10.1°C | 14.7°C | 17.8°C | Very Cold (< 16°C) |
| March | 14.3°C | 18.2°C | 23.2°C | Cool / Refreshing (16°C – 20°C) |
| April | 18.6°C | 21.8°C | 24.6°C | Comfortable (20°C – 24°C) |
| May | 22.5°C | 25.4°C | 27.7°C | Warm & Ideal (24°C – 28°C) |
| June | 26.4°C | 28.6°C | 30.1°C | Tropical Warm (> 28°C) |
| July | 28.1°C | 29.6°C | 30.3°C | Tropical Warm (> 28°C) |
| August | 28.7°C | 30.1°C | 31.3°C | Tropical Warm (> 28°C) |
| SeptemberCurrent | 27.4°C | 29.2°C | 31.5°C | Tropical Warm (> 28°C) |
| October | 22.7°C | 25.8°C | 29.3°C | Warm & Ideal (24°C – 28°C) |
| November | 17.3°C | 21.3°C | 26.1°C | Comfortable (20°C – 24°C) |
| December | 13.3°C | 17.2°C | 20.5°C | Cool / Refreshing (16°C – 20°C) |
Swimming FAQs for San Luis Beach
Is the sea warm enough to swim in San Luis Beach today?
Typical sea surface temperature in San Luis Beach this time of year is 29.2°C (84.6°F) — classified as Tropical Warm (> 28°C). Very warm bath-like water. Zero chill, exceptional for relaxation and snorkeling. Live readings load automatically.
What are the warmest months for swimming in San Luis Beach?
The highest water temperatures in San Luis Beach typically occur duringMay, June, July, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in San Luis Beach in September?
Historically in September, water temperatures in San Luis Beach average around29.2°C (84.6°F), fluctuating between a recorded minimum of 27.4°C and a maximum of 31.5°C.