Can I swim at Cushendun Beach right now?

The sea at Cushendun Beach is currently 15.6°C — cold swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.

What will the sea temperature be at Cushendun Beach next week?

Based on long-term July averages and the latest marine model, expect the sea around Cushendun Beach to sit close to 16.0°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.

When is the best month to swim at Cushendun Beach?

July – August – September are typically the warmest months to swim at Cushendun Beach, with sea temperatures at their seasonal peak.

Do I need a wetsuit at Cushendun Beach?

With water currently at 15.6°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.

United Kingdom

Northern Ireland · North Channel

Cushendun Beach

Northern Ireland family beach.

Cool water with a light chop and a light breeze — fresh conditions — a wetsuit is recommended.

View on map OpenStreetMap Directions

Sea temperature now

15.6°Cmild

Fair

Updated just now · Source: Open-Meteo Marine

Air temperature

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Wave height

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Wind

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UV index

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Location

Cushendun Beach on the map, with nearby beaches and live sea temperatures.

7-day forecast

Water, air, waves, wind and UV outlook for the week ahead.

Wetsuit recommendation

4/3mm fullsuit

At 15.6°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.

+ Optional 3mm boots

Surf & watersports

Cool water — the classic UK/Atlantic spring or Pacific Northwest summer range. A 4/3mm sealed-seam suit keeps you in the water for 90+ minutes. Boots prevent foot pain on rocky entries and extend session length.

Open-water swimming

Acclimatised swimmers manage 30 minutes; a thicker swim wetsuit (3/2) helps.

Recommendation tuned for Cushendun Beach's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.

Quick answer

Can I swim at Cushendun Beach today?

The sea is currently 15.6°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.

Key takeaways

• Located in Northern Ireland, United Kingdom (North Channel).
• Family friendly with calm, accessible water.
• Live data refreshed hourly from Open-Meteo Marine.

Monthly sea temperature averages

Tap any month to see what to expect — based on regional climatology.

Jan9°C Feb8°C Mar8°C Apr9°C May11°C Jun14°C Jul16°C Aug17°C Sep16°C Oct14°C Nov12°C Dec10°C

8°C → 17°C· Current month outlined· “Best” = within 2°C of the annual peak

Year-round sea temperature

Month	Sea	Comfort
Jan	9°C	Cold
Feb	8°C	Cold
Mar	8°C	Cold
Apr	9°C	Cold
May	11°C	Cold
Jun	14°C	Bracing
Jul	16°C	Bracing
Aug ⭐	17°C	Bracing
Sep	16°C	Bracing
Oct	14°C	Bracing
Nov	12°C	Cold
Dec	10°C	Cold