Long Strand Beach sea temperature
Sea-surface temperature for Long Strand Beach, Ireland, with the 7-day outlook and what to wear.
What is the sea temperature at Long Strand Beach today? (3 Sept)
The sea at Long Strand Beach is 17.2 °C today. A summer full suit is the standard choice at this temperature. The sea and the air are within a degree or so of each other.
Long Strand Beach sea temperature — next 7 days
Sea temperature is cooling across the week, by about 1.5 °C from start to end.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Thu 3 Septtoday | 17.0 °C | 16.8–17.2 °C | 3/2 mm full suit |
| Fri 4 Sept | 16.5 °C | 16.4–16.7 °C | 4/3 mm full suit |
| Sat 5 Sept | 16.4 °C | 16.3–16.7 °C | 4/3 mm full suit |
| Sun 6 Sept | 16.5 °C | 16.4–16.7 °C | 4/3 mm full suit |
| Mon 7 Sept | 16.3 °C | 16.3–16.4 °C | 4/3 mm full suit |
| Tue 8 Sept | 16.1 °C | 15.9–16.3 °C | 4/3 mm full suit |
| Wed 9 Sept | 15.5 °C | 15.3–15.9 °C | 4/3 mm full suit |
Figures are modelled sea-surface temperature, not readings from a buoy or a thermometer in the shallows — expect a degree either way, and more in a shallow bay on a hot afternoon. Wetsuit suggestions are general guidance: cold tolerance varies a lot between people, and wind, session length and air temperature matter as much as the water does.
What wetsuit for what sea temperature?
| Sea temperature | Wetsuit | Extras |
|---|---|---|
| 24 °C and above | Boardshorts or swimsuit | — |
| 22–24 °C | Rash vest or 1 mm top | — |
| 19–22 °C | 2 mm shorty or spring suit | — |
| 17–19 °CLong Strand Beach today | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suit | boots on longer sessions |
| 11–14 °C | 5/4 mm full suit | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suit | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suit | thick boots and gloves |
Conditions at Long Strand Beach
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Frequently asked questions.
What is the sea temperature at Long Strand Beach today?
The sea at Long Strand Beach, Ireland is 17.2 °C today. This is modelled sea-surface temperature rather than a buoy reading, so allow a degree either way.
What wetsuit do I need at Long Strand Beach?
At 17.2 °C, 3/2 mm full suit is the usual choice at Long Strand Beach. A summer full suit is the standard choice at this temperature. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Long Strand Beach?
At 17.2 °C the sea at Long Strand Beach is swimmable but brisk — fine for a short swim, and most people want a wetsuit for longer.
How much does the sea temperature at Long Strand Beach change over a week?
Over the next 7 days the sea at Long Strand Beach stays between 15.3 °C and 17.2 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.
