Ballymena Climate by Month
Ballymena, Northern Ireland, United Kingdom
Mild summers and cool winters, with rain spread through the year.
Mild summers and cool winters, with rain spread through the year: that's Ballymena's climate in short. Expect highs of 66°F (19°C) in July and 45°F (7°C) in January, with the coldest nights (February) near 36°F (2°C). About 43 in (1084 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 82% relative humidity.
- Warmest month
- 66°F(19°C)
- Average high, July
- Coldest nights
- 36°F(2°C)
- Average low, February
- Rain per year
- 43 in(1084 mm)
- No clear rainy season
- Humidity
- 82%
- Sunniest: June
Best and worst months in Ballymena
Best for weatherJune to August are the best time for weather in Ballymena: highs near 65°F (18°C) and about 3.4 in (86 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 46°F (8°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Ballymena weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 45°F(7°C) | 36°F(2°C) | 3.9 in(100 mm) | 82% | 0.5 |
| FebFebruary | 47°F(8°C) | 36°F(2°C) | 3.4 in(86 mm) | 80% | 1.2 |
| MarMarch | 50°F(10°C) | 38°F(3°C) | 3.2 in(82 mm) | 83% | 2.1 |
| AprApril | 54°F(12°C) | 40°F(5°C) | 2.7 in(69 mm) | 81% | 3.6 |
| MayMay | 60°F(15°C) | 44°F(7°C) | 2.5 in(63 mm) | 75% | 4.6 |
| JunJuneBest | 64°F(18°C) | 50°F(10°C) | 3.0 in(76 mm) | 76% | 4.7 |
| JulJulyBest | 66°F(19°C) | 53°F(12°C) | 3.3 in(84 mm) | 80% | 4.3 |
| AugAugustBest | 65°F(19°C) | 53°F(11°C) | 3.9 in(99 mm) | 82% | 3.6 |
| SepSeptember | 62°F(17°C) | 49°F(10°C) | 3.5 in(90 mm) | 86% | 2.6 |
| OctOctober | 56°F(13°C) | 45°F(7°C) | 4.3 in(110 mm) | 80% | 1.4 |
| NovNovember | 50°F(10°C) | 40°F(5°C) | 4.6 in(117 mm) | 88% | 0.7 |
| DecDecember | 46°F(8°C) | 37°F(3°C) | 4.3 in(108 mm) | 91% | 0.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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