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Carsten Clasohm CC BY-SA 4.0 Wikimedia Commons

Rathlin O'Birne

Island

Rathlin O'Birne (off County Donegal) is a remote island with a lighthouse and seabird colonies; boat trips visit for rugged coastal scenery and birdwatching.

Rathlin O'Birne SligoLetterkennyDonegalStrandhillGweedoreBenbulbinSlieve LeagueGlenveaghRathlin O'Birne

Rathlin O'Birne essentials

Country: Ireland
Driest months: Apr-Jun
Pay in: Euro (€)
Language: English

Rathlin O'Birne at a Glance

About Rathlin O'Birne

Rathlin O’Birne is a small, rocky island off the northwest coast of County Donegal in Ireland. It is notable for its maritime location and for a lighthouse that marks local waters.

A remote island environment with rugged shoreline and a prominent navigational lighthouse; there are no regular tourist facilities and visits are typically by private or specialist vessels. The site is of interest mainly for maritime history, seabirds and offshore scenery.

The island’s lighthouse and other navigational aids reflect its long role in marking hazardous coastal waters to shipping. The feature has been recorded on maritime charts for many decades and has been used by mariners navigating the Atlantic approaches to northwest Ireland.

Situated off the Donegal coast in the province of Ulster, the island sits well offshore in the Atlantic and is reachable only by private boat.

  • Lighthouse and location: A small, rocky island off the northwest coast of County Donegal known for its lighthouse and remote maritime location.
When to Go

Best Time to Visit Rathlin O'Birne

Summer months offer the safest window for sea access and exploration.

Summer (Jun-Aug)
Jun-Aug · 10-16°C
Milder weather and longer daylight for sea travel.
Late spring/early autumn (May, Sep)
May, Sep · 6-12°C
Transitional weather with possible rough seas.

Weather & Climate near Rathlin O'Birne

Climate

Continental climate with cool summers (peaking in August) and cold winters (coldest in February). Temperatures range from 3°C to 17°C. Abundant rainfall (1230 mm/year), wettest in November.

Air Quality: AQI 21 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 3° - 8° 2° 131 mm overcast 86% 7.2 m/s 0.0 low 7.7h
February Poor 3° - 8° 1° 88 mm overcast 86% 7.0 m/s 0.1 low 9.5h
March Poor 4° - 9° 2° 97 mm overcast 85% 6.8 m/s 0.3 low 11.7h
April Acceptable 5° - 11° 4° 66 mm overcast 84% 5.9 m/s 0.7 moderate 13.9h
May Acceptable 7° - 13° 10° 69 mm overcast 83% 5.6 m/s 1.1 high 15.8h
June Acceptable 9° - 15° 12° 74 mm overcast 83% 5.4 m/s 1.3 high 16.9h
July Good 11° - 17° 14° 79 mm overcast 84% 5.2 m/s 1.2 high 16.4h
August Good 11° - 17° 14° 93 mm overcast 84% 5.2 m/s 0.9 moderate 14.7h
September Acceptable 10° - 16° 13° 115 mm overcast 85% 5.9 m/s 0.6 moderate 12.5h
October Poor 8° - 13° 11° 137 mm overcast 85% 6.4 m/s 0.2 low 10.3h
November Poor 5° - 11° 4° 141 mm overcast 86% 6.5 m/s 0.1 low 8.3h
December Poor 5° - 9° 3° 140 mm overcast 86% 6.7 m/s 0.0 low 7.1h
Getting There & Around

How to Get to Rathlin O'Birne

Rathlin O’Birne is accessible by private boat from points in County Donegal; sea conditions govern schedules and safety. Coordinate with local skippers and check maritime weather forecasts before planning a visit.

Tips for Visiting Rathlin O'Birne

  • Weather can be rough and schedules for local boats are weather-dependent-check in advance.
  • The island is remote; bring provisions and emergency gear for sea travel.
  • Wear layers-the North Atlantic wind is relentless even in summer.