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Weather & Climate in Isle of Lewis, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Isle of Lewis experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 40°F in January while summers reach 55°F in July / relatively mild seasonal variation. The area gets 241 sunny days per year, above the national average. Annual precipitation totals 52.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 46 feet.
Temperature
40°F Jan (4°C)
55°F Jul (13°C)
| Annual Average | 46.4°F |
| 14% below US avg | |
| January Average | 40°F (4°C) |
| July Average | 55°F (13°C) |
| Sunny Days | 241 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 40,217/sq mi |
| Coordinates | 58.2190°N, 6.3880°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Aug 17, 1994 | 40 km SE of Portree, United Kingdom | M3.2 | 125 km | 5 km |
| Jun 8, 2006 | 35 km ENE of Portree, United Kingdom | M2.9 | 88 km | 8 km |
| Jul 26, 1992 | 45 km E of Portree, United Kingdom | M2.8 | 101 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 5.9 in | |
| February | 39°F (4°C) | 4.4 in | Coldest |
| March | 41°F (5°C) | 4.8 in | |
| April | 44°F (6°C) | 3.0 in | |
| May | 48°F (9°C) | 2.4 in | Driest |
| June | 52°F (11°C) | 2.7 in | |
| July | 55°F (13°C) | 3.2 in | Warmest |
| August | 55°F (13°C) | 3.5 in | |
| September | 52°F (11°C) | 4.8 in | |
| October | 48°F (9°C) | 5.9 in | |
| November | 43°F (6°C) | 6.1 in | Wettest |
| December | 41°F (5°C) | 5.7 in |
Isle of Lewis has a seasonal temperature swing of 16°F / from 39°F in February to 55°F in July. Total annual precipitation is 52.3 inches, with November being the wettest month (6.1") and May the driest (2.4").