Scotland's Climate: Mild, Wet, and Cloudy Year-Round

Scotland enjoys a temperate maritime climate—surprisingly mild for its latitude (55°–60°N)—thanks to the North Atlantic Drift (Gulf Stream extension) and prevailing westerly winds.

Temperature Profile

• Winter (Dec–Feb): Average 3–6°C (37–43°F); lows rarely below -5°C (23°F) in lowlands.
• Summer (Jun–Aug): Average 14–17°C (57–63°F); highs above 25°C (77°F) are notable events.
• Extremes: Record high ~33°C (91°F); record low ~-27°C (-17°F) in Highland glens.

Precipitation & Cloudiness

• Annual Rainfall: ~1,500 mm (59 in) average; west coast >3,000 mm, east coast <700 mm (rain shadow).
• Distribution: Rain year-round; autumn/winter wettest.
• Sunshine: ~1,100–1,500 hrs/year (among Europe's lowest); summer days are long (17+ hrs daylight), winter days short (~7 hrs).

Regional Variations

• Western Isles & West Highlands: Mildest, wettest, windiest.
• East Coast (Edinburgh, Aberdeen): Drier, sunnier, colder winters.
• Central Belt (Glasgow–Edinburgh): Moderate, most population.
• Highlands & Cairngorms: Alpine conditions; persistent snow on peaks.

Practical Implications

• Layered, waterproof clothing essential year-round.
• Midges (biting insects) prevalent in calm, humid summer evenings (west/north).
• Driving: winter tires advised in north/highlands; low sun glare in winter.
• Solar energy: viable but seasonal; wind/hydro dominate renewables.