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Weather & Climate in Ballymena, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ballymena experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 39°F in January while summers reach 58°F in July / relatively mild seasonal variation. The area gets 255 sunny days per year, above the national average. Annual precipitation totals 44.5 inches. The city sits at an elevation of 161 feet.
Temperature
39°F Jan (4°C)
58°F Jul (15°C)
| Annual Average | 47.9°F |
| 11% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 58°F (15°C) |
| Sunny Days | 255 days/yr |
Geography
| Elevation | 161 ft (49 m) |
| Area | 538.3 sq mi (1,394.1 km²) |
| Population Density | 54/sq mi |
| Coordinates | 54.8636°N, 6.2763°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| May 3, 1998 | Scotland, United Kingdom | M3.5 | 134 km | 15 km |
| Jan 26, 1990 | 34 km N of Isle of Islay, United Kingdom | M3.0 | 136 km | 10 km |
| Aug 27, 1992 | 33 km NNE of Isle of Islay, United Kingdom | M2.7 | 134 km | 10 km |
| Nov 1, 2017 | 2 km NNW of Tarbert, United Kingdom | M2.6 | 125 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) | 4.8 in | Coldest, Wettest |
| February | 40°F (4°C) | 3.5 in | |
| March | 42°F (6°C) | 3.9 in | |
| April | 45°F (7°C) | 2.8 in | |
| May | 50°F (10°C) | 2.5 in | Driest |
| June | 55°F (13°C) | 2.6 in | |
| July | 58°F (15°C) | 3.0 in | Warmest |
| August | 58°F (14°C) | 3.5 in | |
| September | 54°F (12°C) | 4.0 in | |
| October | 49°F (10°C) | 4.7 in | |
| November | 44°F (6°C) | 4.7 in | |
| December | 41°F (5°C) | 4.6 in |
Ballymena has a seasonal temperature swing of 19°F / from 39°F in January to 58°F in July. Total annual precipitation is 44.5 inches, with January being the wettest month (4.8") and May the driest (2.5").