Grassy Beach Sea Water Temperature
A cool beach on the Sea of the Hebrides, warmest around August at about 14°C. Today's reading, 7-day forecast, and monthly averages below.
Grassy Beach water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Grassy Beach Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Grassy Beach occurs inJuly, August, September, October — peaking at14°C (57.2°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 | 5.9°C | 7.1°C | 8.3°C | Very Cold (< 16°C) |
| February | 4.9°C | 6.2°C | 7.4°C | Very Cold (< 16°C) |
| March | 5.1°C | 6.3°C | 8.3°C | Very Cold (< 16°C) |
| April | 6.4°C | 7.4°C | 9.5°C | Very Cold (< 16°C) |
| May | 7.9°C | 9.4°C | 12.2°C | Very Cold (< 16°C) |
| June | 10.2°C | 11.8°C | 13.9°C | Very Cold (< 16°C) |
| July | 12.1°C | 13.6°C | 16.4°C | Very Cold (< 16°C) |
| August | 12.5°C | 14°C | 15.4°C | Very Cold (< 16°C) |
| SeptemberCurrent | 11.6°C | 13.4°C | 15.5°C | Very Cold (< 16°C) |
| October | 11.1°C | 12.1°C | 13.8°C | Very Cold (< 16°C) |
| November | 9.2°C | 10.4°C | 12°C | Very Cold (< 16°C) |
| December | 7.4°C | 8.6°C | 10.3°C | Very Cold (< 16°C) |
Swimming FAQs for Grassy Beach
Is the sea warm enough to swim in Grassy Beach today?
Typical sea surface temperature in Grassy Beach this time of year is 13.4°C (56.1°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 Grassy Beach?
The highest water temperatures in Grassy Beach typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Grassy Beach in September?
Historically in September, water temperatures in Grassy Beach average around13.4°C (56.1°F), fluctuating between a recorded minimum of 11.6°C and a maximum of 15.5°C.