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Weather & Climate in Larne, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Larne experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 39°F in January while summers reach 59°F in July. The area gets 275 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 33.5 inches. The city sits at an elevation of 13 feet.
Temperature
39°F Jan (4°C)
59°F Jul (15°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 538.3 sq mi (1,394.1 km²) |
| Population Density | 34/sq mi |
| Coordinates | 54.8500°N, 5.8167°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| May 3, 1998 | Scotland, United Kingdom | M3.5 | 135 km | 15 km |
| Jan 26, 1990 | 34 km N of Isle of Islay, United Kingdom | M3.0 | 141 km | 10 km |
| May 13, 2001 | 3 km W of Locharbriggs, United Kingdom | M2.9 | 142 km | 12 km |
| Aug 27, 1992 | 33 km NNE of Isle of Islay, United Kingdom | M2.7 | 135 km | 10 km |
| Nov 1, 2017 | 2 km NNW of Tarbert, United Kingdom | M2.6 | 117 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 3.5 in | Coldest, Wettest |
| February | 40°F (4°C) | 2.5 in | |
| March | 43°F (6°C) | 2.7 in | |
| April | 46°F (8°C) | 2.1 in | |
| May | 51°F (11°C) | 1.9 in | Driest |
| June | 55°F (13°C) | 2.1 in | |
| July | 59°F (15°C) | 2.4 in | Warmest |
| August | 58°F (15°C) | 2.9 in | |
| September | 55°F (13°C) | 3.1 in | |
| October | 50°F (10°C) | 3.5 in | |
| November | 44°F (7°C) | 3.4 in | |
| December | 41°F (5°C) | 3.4 in |
Larne has a seasonal temperature swing of 19°F / from 39°F in January to 59°F in July. Total annual precipitation is 33.5 inches, with January being the wettest month (3.5") and May the driest (1.9").