Cefn Sidan Sea Water Temperature
A temperate beach on the Irish Sea, warmest around August at about 17°C. Today's reading, 7-day forecast, and monthly averages below.
Cefn Sidan water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Cefn Sidan Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Cefn Sidan occurs inJuly, August, September, October — peaking at17°C (62.6°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 | 7.4°C | 8.9°C | 10.4°C | Very Cold (< 16°C) |
| February | 7.1°C | 8.1°C | 9.1°C | Very Cold (< 16°C) |
| March | 6.9°C | 8.1°C | 9.2°C | Very Cold (< 16°C) |
| April | 7.9°C | 9.3°C | 10.7°C | Very Cold (< 16°C) |
| May | 9.7°C | 11.3°C | 13.2°C | Very Cold (< 16°C) |
| June | 12.6°C | 13.8°C | 15.4°C | Very Cold (< 16°C) |
| July | 14.2°C | 15.6°C | 17.6°C | Very Cold (< 16°C) |
| August | 16.3°C | 17°C | 18.3°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 15.7°C | 16.8°C | 18.1°C | Cool / Refreshing (16°C – 20°C) |
| October | 13.6°C | 15.4°C | 17°C | Very Cold (< 16°C) |
| November | 10.9°C | 13°C | 14.9°C | Very Cold (< 16°C) |
| December | 9.2°C | 10.5°C | 12.4°C | Very Cold (< 16°C) |
Swimming FAQs for Cefn Sidan
Is the sea warm enough to swim in Cefn Sidan today?
Typical sea surface temperature in Cefn Sidan this time of year is 16.8°C (62.2°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 Cefn Sidan?
The highest water temperatures in Cefn Sidan typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Cefn Sidan in September?
Historically in September, water temperatures in Cefn Sidan average around16.8°C (62.2°F), fluctuating between a recorded minimum of 15.7°C and a maximum of 18.1°C.