Main image

Richard Webb CC BY-SA 4.0 Wikimedia Commons

Colonsay

Island

An Inner Hebridean island with sandy bays, seabird colonies and a small population, Colonsay appeals to walkers, birdwatchers and those seeking island farms, gardens and quiet coastal scenery.

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In this guide

Colonsay essentials

Country: United Kingdom
Driest months: Apr-Jun
Pay in: Pound (£)
Language: English

Colonsay at a Glance

About Colonsay

Colonsay is a small island in the Inner Hebrides of Scotland, within the council area of Argyll and Bute. The island is known for its coastal scenery, beaches, and wildlife rather than for large settlements or tourist infrastructure.

Sandy bays, birdlife, and a quiet rural landscape that appeals to walkers, birdwatchers, and visitors seeking a low-key island experience. Facilities are limited and most visitors stay in small guesthouses or self-catering accommodation.

Human habitation on Colonsay has historically been small-scale and oriented around fishing, crofting, and local services; the island has retained a low population and rural character. Cultural and natural heritage are the main reasons people visit.

Geographically Colonsay lies in the Inner Hebrides off Scotland’s west coast. The island’s main village and ferry port is Scalasaig, and regular ferries link Colonsay with the Scottish mainland and neighboring islands.

  • Main settlement: The main settlement is the village of Scalasaig, which serves as the island’s ferry port and local services hub.
  • Access: Regular ferry services connect the island with the Scottish mainland, making it accessible to visitors despite its remote location.
Things to Do
When to Go

Best Time to Visit Colonsay

Best visited in late spring through early autumn when weather is mild and island services are most reliable.

Summer
May-September · 8-17°C
Mild, long days and the best time for wildlife, walking and ferry access; this is the island's peak visiting season.
Shoulder seasons
April and October · 4-12°C
Quieter than midsummer but weather can be changeable; some services and accommodation may be reduced.
Winter
November-March · 0-8°C
Cool, wet and very quiet with limited ferry/service frequency; not ideal for typical tourist activities.

Weather & Climate near Colonsay

Climate

Colonsay's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in August) and cold winters (coldest in February). Temperatures range from 4°C to 17°C. Abundant rainfall (1702 mm/year), wettest in January.

Air Quality: AQI 22 Good
Best Time to Visit
JulyMayAugust
Temperature & Rainfall
Temperature Range
22°
Warmest Month
-1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 4° - 8° 1° 210 mm overcast 85% 8.4 m/s 0.0 low 7.4h
February Poor 4° - 8° 1° 126 mm overcast 85% 8.5 m/s 0.1 low 9.3h
March Poor 4° - 9° 2° 154 mm overcast 85% 7.7 m/s 0.3 low 11.7h
April Acceptable 5° - 10° 4° 92 mm overcast 84% 6.1 m/s 0.7 moderate 14.0h
May Acceptable 8° - 13° 11° 71 mm overcast 84% 5.5 m/s 1.0 high 16.2h
June Acceptable 10° - 15° 12° 82 mm overcast 86% 5.2 m/s 1.3 high 17.3h
July Acceptable 12° - 17° 14° 106 mm overcast 87% 5.0 m/s 1.2 high 16.8h
August Acceptable 12° - 17° 14° 128 mm overcast 87% 5.0 m/s 0.9 moderate 14.9h
September Poor 10° - 15° 13° 167 mm overcast 86% 6.0 m/s 0.5 moderate 12.6h
October Poor 8° - 12° 10° 189 mm overcast 85% 7.1 m/s 0.2 low 10.2h
November Poor 6° - 10° 4° 191 mm overcast 85% 7.7 m/s 0.0 low 8.0h
December Poor 4° - 8° 2° 186 mm overcast 85% 7.7 m/s 0.0 low 6.7h
Getting There & Around

How to Get to Colonsay

Colonsay is reached by ferry from Oban on Scotland’s west coast; Caledonian MacBrayne (CalMac) operates sailings (journey time roughly 2.5-3 hours depending on schedule and weather). To reach Oban by car from Glasgow allow about 2.5-3 hours via the A82/A85 (roughly 90-100 miles / 145-160 km). Check CalMac schedules in advance as sailings are seasonal and subject to change.

Tips for Visiting Colonsay

  • Plan travel around the Caledonian MacBrayne ferry timetable and aim to land and depart via Scalasaig-the village harbour is the island's transport hub and base for accommodations and supplies.
  • Visit outside July-August or early/late in the day to avoid the brief high season; spring and early autumn offer better solitude and excellent machair wildflower and birding opportunities.
  • Explore north‑end beaches and inland machair habitats beyond Scalasaig-these areas receive far fewer visitors than the village and are good for spotting orchids and seabird colonies.