Loch Lomond vs Lough Neagh

Lough Neagh is the warmer swim right now at about 15.5°C. They are roughly 203 km apart in United Kingdom.

Loch Lomond

Scotland

14.0°C

cool · modelled estimate

October average
14.0°C
Warmest month
August · 17.0°C
Coldest month
5.0°C
Swim season
no month averages above 18°C — a wetsuit lake year-round

Scotland's biggest loch by surface area, with sandy bays at Luss and Milarrochy.

Lough Neagh

Northern Ireland

15.5°C

mild · modelled estimate

October average
15.5°C
Warmest month
August · 19.0°C
Coldest month
5.0°C
Swim season
July–September

Lough Neagh in Northern Ireland, United Kingdom is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Loch Lomond5.8°C5.0°C5.8°C8.0°C11.0°C14.0°C16.2°C17.0°C16.2°C14.0°C11.0°C8.0°C
Lough Neagh5.9°C5.0°C5.9°C8.5°C12.0°C15.5°C18.1°C19.0°C18.1°C15.5°C12.0°C8.5°C

Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.

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Want a different mix? Compare up to four lakes side by side or browse all lake water temperatures.

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