Ross Bay Sea Water Temperature
A cool beach on the Irish Sea, warmest around August at about 16°C. Today's reading, 7-day forecast, and monthly averages below.
Ross Bay water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Ross Bay Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Ross Bay occurs inJuly, August, September, October — peaking at16°C (60.8°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 | 6°C | 7.8°C | 9.8°C | Very Cold (< 16°C) |
| February | 5.7°C | 6.9°C | 8.2°C | Very Cold (< 16°C) |
| March | 5.8°C | 7°C | 8.5°C | Very Cold (< 16°C) |
| April | 7.2°C | 8.4°C | 9.9°C | Very Cold (< 16°C) |
| May | 9.2°C | 10.7°C | 12.7°C | Very Cold (< 16°C) |
| June | 11°C | 13.1°C | 15.5°C | Very Cold (< 16°C) |
| July | 12.9°C | 14.9°C | 16.4°C | Very Cold (< 16°C) |
| August | 14.7°C | 16°C | 17.2°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 13.9°C | 15.6°C | 17.1°C | Very Cold (< 16°C) |
| October | 12.4°C | 14°C | 15.9°C | Very Cold (< 16°C) |
| November | 9.4°C | 11.4°C | 13.6°C | Very Cold (< 16°C) |
| December | 8°C | 9.3°C | 11.2°C | Very Cold (< 16°C) |
Swimming FAQs for Ross Bay
Is the sea warm enough to swim in Ross Bay today?
Typical sea surface temperature in Ross Bay this time of year is 15.6°C (60.1°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 Ross Bay?
The highest water temperatures in Ross Bay typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Ross Bay in September?
Historically in September, water temperatures in Ross Bay average around15.6°C (60.1°F), fluctuating between a recorded minimum of 13.9°C and a maximum of 17.1°C.