April is one of the cooler months of the year in Antrim, with average highs near 10.7°C and lows around 4.4°C (mean 7.6°C). It is one of the drier months, averaging 68 mm of rainfall and 87% relative humidity across the period.
April is one of the cooler months of the year in Antrim. Across 45 years of records, the warmest April in Antrim was 2011 — when the month averaged 10.1°C — while the coldest was 1986 at 4.7°C. Typical April days reach 10.7°C with nights near 4.4°C. The long-term trend is warming, about 0.3°C per decade.
April is one of the drier months in Antrim, averaging 68 mm of rainfall. The wettest April on record was 1991 with 127 mm, while the driest was 2021 at 23 mm.
Relative humidity in Antrim during April averages 87%. The most humid April was 1993 at 89%, and the least humid was 2021 at 83%.
April receives about 3.6 kWh/m²/day of solar energy in Antrim. The sunniest April was 2015 at 4.4 kWh/m²/day, and the cloudiest were 1987 and 1992 at 3.
Average wind speed in Antrim during April is 3.8 m/s. The windiest April was 1991 at 4.9 m/s, while the calmest were 2007, 2010 and 2021 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.9°C | 7.4°C | 7.7°C | 7.6°C | 8.2°C | +1.3°C |
| Avg High | 10.1°C | 10.4°C | 10.8°C | 10.8°C | 11.6°C | +1.5°C |
| Avg Low | 3.7°C | 4.4°C | 4.7°C | 4.4°C | 4.9°C | +1.2°C |
| Avg Rain | 58 mm | 85 mm | 72 mm | 58 mm | 62 mm | +5 mm |
April temperatures in Antrim have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -2.2°C (1998) to a record high of 20°C (1987).
Rainfall in April is one of the drier months, averaging 68 mm, with a wettest year of 127 mm.
A good time to visit Antrim
April is a good time to visit Antrim, with days averaging 10.7°C and nights around 4.4°C (mean 7.6°C, cooler than Antrim's yearly average) and moderate rainfall. July and August are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 13.3°C | 9.6°C | 6.0°C | 19.7°C | 2.1°C | 88 mm | 85% | 3.3 m/s | 4.2 |
| 2024 | 11.3°C | 8.3°C | 5.3°C | 15.2°C | 2.7°C | 99 mm | 87% | 4.2 m/s | 3.5 |
| 2023 | 11.6°C | 8.4°C | 5.2°C | 15.6°C | 1.6°C | 90 mm | 88% | 3.6 m/s | 3.6 |
| 2022 | 11.3°C | 8.1°C | 4.9°C | 14.5°C | 0.0°C | 51 mm | 86% | 3.7 m/s | 3.8 |
| 2021 | 9.8°C | 6.5°C | 3.1°C | 14.4°C | -0.3°C | 23 mm | 83% | 3 m/s | 4.3 |
| 2020 | 12.1°C | 8.5°C | 4.9°C | 16.2°C | 2.0°C | 24 mm | 85% | 3.2 m/s | 4.3 |
| 2019 | 11.2°C | 8.3°C | 5.5°C | 18.7°C | 1.9°C | 76 mm | 87% | 4 m/s | 3.3 |
| 2018 | 10.3°C | 7.6°C | 4.8°C | 15.3°C | -1.5°C | 80 mm | 89% | 3.9 m/s | 3.3 |
| 2017 | 10.9°C | 7.7°C | 4.5°C | 13.6°C | 1.2°C | 31 mm | 87% | 3.8 m/s | 3.3 |
| 2016 | 8.9°C | 6.0°C | 3.1°C | 13.8°C | 0.1°C | 77 mm | 87% | 3.9 m/s | 3.7 |
| 2015 | 11.2°C | 7.5°C | 3.9°C | 16.8°C | 0.7°C | 56 mm | 86% | 3.2 m/s | 4.4 |
| 2014 | 12.3°C | 9.0°C | 5.6°C | 16.1°C | 2.8°C | 45 mm | 88% | 3.6 m/s | 3.8 |
| 2013 | 8.9°C | 5.9°C | 2.9°C | 12.8°C | -1.2°C | 70 mm | 85% | 4.4 m/s | 4 |
| 2012 | 9.2°C | 6.2°C | 3.3°C | 13.5°C | 0.5°C | 62 mm | 86% | 3.8 m/s | 3.7 |
| 2011 🔥 | 13.7°C | 10.1°C | 6.5°C | 16.9°C | 3.3°C | 31 mm | 85% | 3.2 m/s | 4.2 |
| 2010 | 11.2°C | 7.8°C | 4.3°C | 15.6°C | 0.3°C | 58 mm | 86% | 3 m/s | 3.9 |
| 2009 | 11.7°C | 8.6°C | 5.6°C | 15.3°C | 2.5°C | 97 mm | 88% | 3.6 m/s | 3.5 |
| 2008 | 10.0°C | 6.9°C | 3.8°C | 13.8°C | 0.4°C | 39 mm | 86% | 3.9 m/s | 3.9 |
| 2007 | 13.5°C | 10.0°C | 6.4°C | 17.6°C | 1.5°C | 38 mm | 86% | 3 m/s | 4.1 |
| 2006 | 10.0°C | 6.8°C | 3.7°C | 13.1°C | -1.2°C | 62 mm | 87% | 3.8 m/s | 3.8 |
| 2005 | 10.5°C | 7.6°C | 4.7°C | 14.0°C | 1.3°C | 101 mm | 87% | 4.3 m/s | 3.6 |
| 2004 | 11.1°C | 8.3°C | 5.5°C | 15.2°C | 2.0°C | 76 mm | 88% | 4.2 m/s | 3.5 |
| 2003 | 12.0°C | 8.8°C | 5.5°C | 17.4°C | 0.5°C | 51 mm | 87% | 3.5 m/s | 3.6 |
| 2002 | 11.0°C | 7.8°C | 4.6°C | 15.9°C | 0.8°C | 92 mm | 87% | 4.1 m/s | 3.6 |
| 2001 | 9.3°C | 6.4°C | 3.5°C | 11.9°C | 0.0°C | 80 mm | 89% | 3.8 m/s | 3.1 |
| 2000 | 9.0°C | 6.2°C | 3.3°C | 14.5°C | -0.9°C | 86 mm | 87% | 3.8 m/s | 3.2 |
| 1999 | 11.1°C | 8.2°C | 5.2°C | 15.7°C | -0.6°C | 87 mm | 89% | 4.4 m/s | 3.5 |
| 1998 | 8.8°C | 6.3°C | 3.8°C | 13.2°C | -2.2°C | 100 mm | 88% | 3.9 m/s | 3.5 |
| 1997 | 11.8°C | 8.5°C | 5.2°C | 16.3°C | 0.9°C | 50 mm | 87% | 3.3 m/s | 3.1 |
| 1996 | 10.6°C | 7.6°C | 4.6°C | 13.5°C | -0.5°C | 107 mm | 89% | 3.9 m/s | 3.2 |
| 1995 | 10.9°C | 7.7°C | 4.6°C | 15.2°C | 1.3°C | 37 mm | 88% | 4 m/s | 3.2 |
| 1994 | 9.8°C | 6.6°C | 3.5°C | 15.8°C | 0.3°C | 70 mm | 87% | 4.5 m/s | 3.6 |
| 1993 | 11.2°C | 8.3°C | 5.3°C | 16.2°C | 1.0°C | 104 mm | 89% | 3.7 m/s | 3.1 |
| 1992 | 9.9°C | 7.1°C | 4.3°C | 15.2°C | 0.0°C | 107 mm | 88% | 4.6 m/s | 3 |
| 1991 🌧️ | 9.7°C | 6.8°C | 3.9°C | 13.5°C | 0.2°C | 127 mm | 88% | 4.9 m/s | 3.4 |
| 1990 | 10.6°C | 7.1°C | 3.6°C | 17.4°C | -1.1°C | 56 mm | 86% | 4.1 m/s | 3.8 |
| 1989 | 8.3°C | 5.4°C | 2.6°C | 13.2°C | -0.7°C | 92 mm | 86% | 3.5 m/s | 3.3 |
| 1988 | 11.1°C | 8.0°C | 4.8°C | 14.4°C | 1.4°C | 39 mm | 86% | 3.3 m/s | 3.6 |
| 1987 | 11.8°C | 8.5°C | 5.2°C | 20.0°C | -0.2°C | 45 mm | 89% | 3.5 m/s | 3 |
| 1986 ❄️ | 7.7°C | 4.7°C | 1.8°C | 13.4°C | -0.7°C | 101 mm | 86% | 3.9 m/s | 3.5 |
| 1985 | 10.4°C | 7.4°C | 4.4°C | 14.9°C | 0.7°C | 76 mm | 87% | 4.4 m/s | 3.5 |
| 1984 | 10.9°C | 7.5°C | 4.0°C | 17.6°C | -0.9°C | 39 mm | 85% | 3.6 m/s | 3.9 |
| 1983 | 8.3°C | 5.4°C | 2.4°C | 11.5°C | -1.2°C | 62 mm | 85% | 3.2 m/s | — |
| 1982 | 11.5°C | 7.9°C | 4.3°C | 15.3°C | 0.5°C | 26 mm | 86% | 3.3 m/s | — |
| 1981 | 10.9°C | 7.6°C | 4.2°C | 15.0°C | -0.1°C | 41 mm | 85% | 3.5 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 10.7°C with lows near 4.4°C (mean 7.6°C), based on 45 years of NASA POWER data.
April averages 68 mm of rainfall in Antrim, one of the drier months. The wettest on record was 127 mm in 1991.
The hottest April reached 20°C in 1987. The coldest dipped to -2.2°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1°C. Daytime highs moved from 10.4°C to 11.5°C and overnight lows from 3.9°C to 4.9°C over the same span.
April is one of the cooler months of the year in Antrim and one of the drier months, so plan for around 10.7°C daytime highs and 4.4°C at night.
Not quite — April is the 6th coolest month in Antrim, averaging 7.6°C.
For April in Antrim, pack warm layers and a jacket for chilly mornings, with typical highs of 10.7°C and lows of 4.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 87% — quite humid.
Average wind speed in April is 3.8 m/s. The windiest April on record averaged 4.9 m/s (1991).
The wettest April on record was 1991 with 127 mm. On average, April sees 68 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Antrim behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
