Mussenden Temple on the clifftop at Castlerock, Northern Ireland

Larne ferry port

Photo: K. Mitch Hodge / Unsplash

Ferryu lists 1 ferry route from Larne and 1 ferry route to it.

Ferries leave Larne for Douglas (Isle of Man), with Isle of Man Steam Packet.

Ferries arrive in Larne from Cairnryan, with P&O Ferries.

Pick a route to see the operators I list on it and where to book with them.

Ferries from Larne

Ferries to Larne

Crossings from and to Larne

CairnryanDouglasLarne
Map data: Natural Earth. Port locations © OpenStreetMap contributors.

Weather in Larne

  • Warmest month: August, average high 16°C.
  • Wettest month: October, about 114 mm of rain.
  • Sea at its warmest in September, about 15°C.

Temperature

  • Air, average daily low to high (1991–2020)
  • Sea surface, monthly average (2023–2024)
05101520°CJFMAMJJASONDJanuary: air 5.1 to 7.9°C, sea 9.4°CFebruary: air 4.8 to 7.8°C, sea 8.9°CMarch: air 5.4 to 8.6°C, sea 8.8°CApril: air 6.7 to 9.9°C, sea 9.5°CMay: air 8.7 to 12.0°C, sea 11.6°CJune: air 11.1 to 14.1°C, sea 13.7°CJuly: air 12.7 to 15.8°C, sea 14.6°CAugust: air 13.1 to 16.1°C, sea 15.2°CSeptember: air 12.1 to 15.1°C, sea 15.3°COctober: air 10.0 to 12.8°C, sea 14.0°CNovember: air 7.6 to 10.4°C, sea 12.8°CDecember: air 5.7 to 8.6°C, sea 11.0°C16°

Rain

Average total for the month, mm (1991–2020)

0255075100125 mmJFMAMJJASONDJanuary: 99.4 mmFebruary: 79.8 mmMarch: 75.6 mmApril: 68.2 mmMay: 72.1 mmJune: 82.0 mmJuly: 93.9 mmAugust: 91.7 mmSeptember: 85.8 mmOctober: 113.7 mmNovember: 112.6 mmDecember: 108.6 mm114

Temperature

  • Air, average daily low to high (1991–2020)
  • Sea surface, monthly average (2023–2024)
05101520°CJFMAMJJASONDJanuary: air 5.1 to 7.9°C, sea 9.4°CFebruary: air 4.8 to 7.8°C, sea 8.9°CMarch: air 5.4 to 8.6°C, sea 8.8°CApril: air 6.7 to 9.9°C, sea 9.5°CMay: air 8.7 to 12.0°C, sea 11.6°CJune: air 11.1 to 14.1°C, sea 13.7°CJuly: air 12.7 to 15.8°C, sea 14.6°CAugust: air 13.1 to 16.1°C, sea 15.2°CSeptember: air 12.1 to 15.1°C, sea 15.3°COctober: air 10.0 to 12.8°C, sea 14.0°CNovember: air 7.6 to 10.4°C, sea 12.8°CDecember: air 5.7 to 8.6°C, sea 11.0°C16°

Rain

Average total for the month, mm (1991–2020)

0255075100125 mmJFMAMJJASONDJanuary: 99.4 mmFebruary: 79.8 mmMarch: 75.6 mmApril: 68.2 mmMay: 72.1 mmJune: 82.0 mmJuly: 93.9 mmAugust: 91.7 mmSeptember: 85.8 mmOctober: 113.7 mmNovember: 112.6 mmDecember: 108.6 mm114
Show the numbers
Monthly averages for Larne
MonthHigh °CLow °CRain mmSea °C
January7.95.199.49.4
February7.84.879.88.9
March8.65.475.68.8
April9.96.768.29.5
May12.08.772.111.6
June14.111.182.013.7
July15.812.793.914.6
August16.113.191.715.2
September15.112.185.815.3
October12.810.0113.714.0
November10.47.6112.612.8
December8.65.7108.611.0

1991–2020 averages, ERA5 via Open-Meteo, read at the grid point nearest the port (11 km away). Sea surface: 2023–2024 averages from the Open-Meteo Marine Weather API, which has no sea temperatures before late 2022.

Ferry operators at Larne

Other ports in Northern Ireland