Arthur's Beach (Sunny Cove) Sea Water Temperature
A temperate beach on the Celtic Sea, warmest around August at about 16.6°C. Today's reading, 7-day forecast, and monthly averages below.
Arthur's Beach (Sunny Cove) water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Arthur's Beach (Sunny Cove) Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Arthur's Beach (Sunny Cove) occurs inJuly, August, September, October — peaking at16.6°C (61.9°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 | 9.2°C | 10.6°C | 11.7°C | Very Cold (< 16°C) |
| February | 8.9°C | 9.9°C | 10.7°C | Very Cold (< 16°C) |
| March | 8.5°C | 9.7°C | 10.4°C | Very Cold (< 16°C) |
| April | 9.1°C | 10.4°C | 12.4°C | Very Cold (< 16°C) |
| May | 10.2°C | 12°C | 14.5°C | Very Cold (< 16°C) |
| June | 12.5°C | 14.6°C | 17.1°C | Very Cold (< 16°C) |
| July | 13.6°C | 16.3°C | 19.4°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.6°C | 16.6°C | 18.5°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 14.4°C | 15.9°C | 17.8°C | Very Cold (< 16°C) |
| October | 13.2°C | 14.8°C | 16.1°C | Very Cold (< 16°C) |
| November | 10.8°C | 13.2°C | 14.9°C | Very Cold (< 16°C) |
| December | 10.3°C | 11.6°C | 12.7°C | Very Cold (< 16°C) |
Swimming FAQs for Arthur's Beach (Sunny Cove)
Is the sea warm enough to swim in Arthur's Beach (Sunny Cove) today?
Typical sea surface temperature in Arthur's Beach (Sunny Cove) this time of year is 15.9°C (60.6°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 Arthur's Beach (Sunny Cove)?
The highest water temperatures in Arthur's Beach (Sunny Cove) typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Arthur's Beach (Sunny Cove) in September?
Historically in September, water temperatures in Arthur's Beach (Sunny Cove) average around15.9°C (60.6°F), fluctuating between a recorded minimum of 14.4°C and a maximum of 17.8°C.