Rock-a-Nore Beach Sea Water Temperature
A temperate beach on the Irish Sea, warmest around September at about 17.4°C. Today's reading, 7-day forecast, and monthly averages below.
Rock-a-Nore Beach water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Rock-a-Nore Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Rock-a-Nore Beach occurs inJuly, August, September, October — peaking at17.4°C (63.3°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 | 7.5°C | 9.5°C | 12.1°C | Very Cold (< 16°C) |
| February | 5°C | 8.4°C | 10.1°C | Very Cold (< 16°C) |
| March | 6.1°C | 8.2°C | 9.5°C | Very Cold (< 16°C) |
| April | 7.6°C | 9.2°C | 11.7°C | Very Cold (< 16°C) |
| May | 9.7°C | 11.3°C | 14°C | Very Cold (< 16°C) |
| June | 12°C | 13.5°C | 15.8°C | Very Cold (< 16°C) |
| July | 14.3°C | 15.9°C | 19.6°C | Very Cold (< 16°C) |
| August | 16.4°C | 17.3°C | 19.5°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 16.1°C | 17.4°C | 19.1°C | Cool / Refreshing (16°C – 20°C) |
| October | 15°C | 16.2°C | 17.9°C | Cool / Refreshing (16°C – 20°C) |
| November | 11.5°C | 13.8°C | 16.2°C | Very Cold (< 16°C) |
| December | 9.2°C | 11.4°C | 13.6°C | Very Cold (< 16°C) |
Swimming FAQs for Rock-a-Nore Beach
Is the sea warm enough to swim in Rock-a-Nore Beach today?
Typical sea surface temperature in Rock-a-Nore Beach this time of year is 17.4°C (63.3°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 Rock-a-Nore Beach?
The highest water temperatures in Rock-a-Nore Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Rock-a-Nore Beach in September?
Historically in September, water temperatures in Rock-a-Nore Beach average around17.4°C (63.3°F), fluctuating between a recorded minimum of 16.1°C and a maximum of 19.1°C.