Playa de San Sebastián Sea Water Temperature
A mild beach on the Coastal Waters, warmest around September at about 24°C. Today's reading, 7-day forecast, and monthly averages below.
Playa de San Sebastián water temperature
Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold.
7-Day Water Temperature Forecast
Playa de San Sebastián Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Playa de San Sebastián occurs inJuly, August, September, October, November — peaking at24°C (75.2°F) in September.
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 | 19.2°C | 20.2°C | 22.2°C | Comfortable (20°C – 24°C) |
| February | 18.1°C | 19.6°C | 21°C | Cool / Refreshing (16°C – 20°C) |
| March | 17.7°C | 19.4°C | 20.6°C | Cool / Refreshing (16°C – 20°C) |
| April | 18.7°C | 19.9°C | 21.1°C | Cool / Refreshing (16°C – 20°C) |
| May | 19.6°C | 20.5°C | 21.7°C | Comfortable (20°C – 24°C) |
| June | 20.8°C | 21.7°C | 22.9°C | Comfortable (20°C – 24°C) |
| July | 21.6°C | 22.6°C | 24.2°C | Comfortable (20°C – 24°C) |
| August | 22.3°C | 23.4°C | 24.7°C | Comfortable (20°C – 24°C) |
| SeptemberCurrent | 22.9°C | 24°C | 25.3°C | Warm & Ideal (24°C – 28°C) |
| October | 22.4°C | 23.8°C | 25.3°C | Comfortable (20°C – 24°C) |
| November | 21.4°C | 22.6°C | 23.7°C | Comfortable (20°C – 24°C) |
| December | 20.3°C | 21.4°C | 22.8°C | Comfortable (20°C – 24°C) |
Swimming FAQs for Playa de San Sebastián
Is the sea warm enough to swim in Playa de San Sebastián today?
Typical sea surface temperature in Playa de San Sebastián this time of year is 24°C (75.2°F) — classified as Warm & Ideal (24°C – 28°C). Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold. Live readings load automatically.
What are the warmest months for swimming in Playa de San Sebastián?
The highest water temperatures in Playa de San Sebastián typically occur duringJuly, August, September, October, November, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Playa de San Sebastián in September?
Historically in September, water temperatures in Playa de San Sebastián average around24°C (75.2°F), fluctuating between a recorded minimum of 22.9°C and a maximum of 25.3°C.