April is one of the cooler months of the year in Carrickfergus, with average highs near 9.9°C and lows around 5.6°C (mean 7.8°C). It is one of the drier months, averaging 66 mm of rainfall and 86% relative humidity across the period.
April is one of the cooler months of the year in Carrickfergus. Across 45 years of records, the warmest April in Carrickfergus was 2011 — when the month averaged 9.9°C — while the coldest was 1986 at 5.4°C. Typical April days reach 9.9°C with nights near 5.6°C. The long-term trend is warming, about 0.3°C per decade.
April is one of the drier months in Carrickfergus, averaging 66 mm of rainfall. The wettest April on record was 1991 with 134 mm, while the driest was 2021 at 17 mm.
Relative humidity in Carrickfergus during April averages 86%. The most humid April was 1993 at 89%, and the least humid was 2021 at 81%.
April receives about 3.8 kWh/m²/day of solar energy in Carrickfergus. The sunniest April was 2021 at 4.7 kWh/m²/day, and the cloudiest was 1987 at 3.
Average wind speed in Carrickfergus during April is 4.5 m/s. The windiest April was 1991 at 5.9 m/s, while the calmest were 2007 and 2010 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.1°C | 7.6°C | 8.0°C | 7.9°C | 8.5°C | +1.4°C |
| Avg High | 9.3°C | 9.8°C | 10.1°C | 10.0°C | 10.7°C | +1.4°C |
| Avg Low | 4.9°C | 5.5°C | 5.9°C | 5.7°C | 6.2°C | +1.3°C |
| Avg Rain | 56 mm | 85 mm | 69 mm | 57 mm | 58 mm | +2 mm |
April temperatures in Carrickfergus have risen by about 1.1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 0.3°C (1998) to a record high of 18.2°C (1987).
Rainfall in April is one of the drier months, averaging 66 mm, with a wettest year of 134 mm.
A good time to visit Carrickfergus
April is a good time to visit Carrickfergus, with days averaging 9.9°C and nights around 5.6°C (mean 7.8°C, cooler than Carrickfergus'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 | 12.2°C | 9.7°C | 7.2°C | 17.1°C | 4.2°C | 78 mm | 86% | 3.9 m/s | 4.4 |
| 2024 | 10.7°C | 8.6°C | 6.5°C | 13.6°C | 4.8°C | 112 mm | 86% | 5.1 m/s | 3.6 |
| 2023 | 10.8°C | 8.6°C | 6.4°C | 14.2°C | 3.9°C | 77 mm | 86% | 4.1 m/s | 3.9 |
| 2022 | 10.4°C | 8.3°C | 6.2°C | 13.4°C | 2.2°C | 43 mm | 84% | 4.3 m/s | 4 |
| 2021 | 9.1°C | 6.9°C | 4.8°C | 13.1°C | 1.8°C | 17 mm | 81% | 3.6 m/s | 4.7 |
| 2020 | 11.0°C | 8.6°C | 6.1°C | 14.2°C | 3.8°C | 21 mm | 85% | 3.8 m/s | 4.6 |
| 2019 | 10.4°C | 8.6°C | 6.7°C | 17.1°C | 3.8°C | 72 mm | 86% | 4.9 m/s | 3.7 |
| 2018 | 9.5°C | 7.6°C | 5.8°C | 13.5°C | 0.7°C | 76 mm | 89% | 4.5 m/s | 3.5 |
| 2017 | 10.3°C | 8.0°C | 5.7°C | 12.6°C | 3.2°C | 26 mm | 86% | 4.6 m/s | 3.7 |
| 2016 | 8.6°C | 6.7°C | 4.7°C | 12.5°C | 1.7°C | 82 mm | 85% | 4.7 m/s | 4 |
| 2015 | 10.2°C | 7.7°C | 5.2°C | 14.8°C | 2.8°C | 56 mm | 85% | 3.8 m/s | 4.4 |
| 2014 | 11.2°C | 8.9°C | 6.6°C | 14.0°C | 4.2°C | 43 mm | 89% | 4.2 m/s | 3.7 |
| 2013 | 8.5°C | 6.3°C | 4.2°C | 11.2°C | 1.0°C | 65 mm | 84% | 5.2 m/s | 4 |
| 2012 | 9.0°C | 7.0°C | 4.9°C | 12.9°C | 2.1°C | 66 mm | 84% | 4.8 m/s | 4 |
| 2011 🔥 | 12.4°C | 9.9°C | 7.5°C | 15.0°C | 4.6°C | 30 mm | 85% | 3.6 m/s | 4.3 |
| 2010 | 10.2°C | 7.9°C | 5.6°C | 13.6°C | 2.3°C | 54 mm | 86% | 3.5 m/s | 4.1 |
| 2009 | 10.7°C | 8.6°C | 6.4°C | 13.5°C | 3.6°C | 86 mm | 88% | 4.2 m/s | 3.8 |
| 2008 | 9.5°C | 7.3°C | 5.2°C | 12.8°C | 1.8°C | 40 mm | 85% | 4.7 m/s | 4.1 |
| 2007 | 12.3°C | 9.8°C | 7.3°C | 15.8°C | 3.4°C | 32 mm | 87% | 3.5 m/s | 4.2 |
| 2006 | 9.5°C | 7.3°C | 5.1°C | 11.6°C | 1.2°C | 59 mm | 86% | 4.5 m/s | 4 |
| 2005 | 10.0°C | 7.9°C | 5.8°C | 13.2°C | 2.1°C | 107 mm | 87% | 5.2 m/s | 3.7 |
| 2004 | 10.5°C | 8.5°C | 6.5°C | 13.4°C | 4.0°C | 71 mm | 88% | 4.9 m/s | 3.7 |
| 2003 | 10.9°C | 8.8°C | 6.6°C | 14.8°C | 3.0°C | 51 mm | 86% | 4.2 m/s | 4 |
| 2002 | 10.3°C | 8.2°C | 6.1°C | 14.2°C | 3.2°C | 92 mm | 86% | 4.8 m/s | 3.8 |
| 2001 | 8.9°C | 6.9°C | 4.9°C | 10.8°C | 1.9°C | 76 mm | 88% | 4.6 m/s | 3.5 |
| 2000 | 8.7°C | 6.8°C | 4.8°C | 13.2°C | 1.6°C | 74 mm | 85% | 4.6 m/s | 3.6 |
| 1999 | 10.4°C | 8.3°C | 6.2°C | 13.9°C | 1.1°C | 86 mm | 88% | 5.1 m/s | 3.8 |
| 1998 | 8.7°C | 6.9°C | 5.1°C | 12.6°C | 0.3°C | 97 mm | 86% | 4.9 m/s | 3.9 |
| 1997 | 10.8°C | 8.5°C | 6.2°C | 14.5°C | 3.1°C | 48 mm | 87% | 3.9 m/s | 3.3 |
| 1996 | 9.6°C | 7.6°C | 5.6°C | 12.3°C | 2.3°C | 107 mm | 89% | 4.7 m/s | 3.2 |
| 1995 | 10.0°C | 7.8°C | 5.6°C | 13.7°C | 2.5°C | 38 mm | 87% | 4.7 m/s | 3.7 |
| 1994 | 9.2°C | 6.9°C | 4.5°C | 13.6°C | 2.0°C | 72 mm | 87% | 5.3 m/s | 3.7 |
| 1993 | 10.4°C | 8.3°C | 6.2°C | 14.7°C | 2.2°C | 103 mm | 89% | 4.5 m/s | 3.4 |
| 1992 | 9.4°C | 7.4°C | 5.4°C | 13.9°C | 2.3°C | 108 mm | 87% | 5.5 m/s | 3.3 |
| 1991 🌧️ | 9.2°C | 7.1°C | 5.1°C | 11.8°C | 2.5°C | 134 mm | 86% | 5.9 m/s | 3.5 |
| 1990 | 10.0°C | 7.4°C | 4.8°C | 14.4°C | 1.1°C | 55 mm | 85% | 4.8 m/s | 3.8 |
| 1989 | 8.0°C | 6.1°C | 4.2°C | 11.8°C | 1.4°C | 92 mm | 85% | 4.3 m/s | 3.4 |
| 1988 | 9.9°C | 7.9°C | 5.9°C | 12.5°C | 3.2°C | 40 mm | 86% | 3.9 m/s | 3.5 |
| 1987 | 10.5°C | 8.2°C | 5.9°C | 18.2°C | 2.0°C | 41 mm | 88% | 4.1 m/s | 3 |
| 1986 ❄️ | 7.5°C | 5.4°C | 3.3°C | 12.0°C | 1.3°C | 96 mm | 84% | 4.7 m/s | 3.4 |
| 1985 | 9.6°C | 7.4°C | 5.3°C | 13.3°C | 2.1°C | 72 mm | 87% | 5.1 m/s | 3.2 |
| 1984 | 9.8°C | 7.5°C | 5.2°C | 14.9°C | 1.1°C | 34 mm | 85% | 4.2 m/s | 3.9 |
| 1983 | 8.0°C | 5.9°C | 3.8°C | 10.6°C | 1.1°C | 62 mm | 83% | 4 m/s | — |
| 1982 | 10.2°C | 7.9°C | 5.5°C | 13.3°C | 2.8°C | 25 mm | 86% | 3.8 m/s | — |
| 1981 | 9.9°C | 7.7°C | 5.4°C | 13.9°C | 2.3°C | 44 mm | 85% | 4.1 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 9.9°C with lows near 5.6°C (mean 7.8°C), based on 45 years of NASA POWER data.
April averages 66 mm of rainfall in Carrickfergus, one of the drier months. The wettest on record was 134 mm in 1991.
The hottest April reached 18.2°C in 1987. The coldest dipped to 0.3°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.1°C. Daytime highs moved from 9.5°C to 10.6°C and overnight lows from 5°C to 6.2°C over the same span.
April is one of the cooler months of the year in Carrickfergus and one of the drier months, so plan for around 9.9°C daytime highs and 5.6°C at night.
Not quite — April is the 5th coolest month in Carrickfergus, averaging 7.8°C.
For April in Carrickfergus, pack warm layers and a jacket for chilly mornings, with typical highs of 9.9°C and lows of 5.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 86% — quite humid.
Average wind speed in April is 4.5 m/s. The windiest April on record averaged 5.9 m/s (1991).
The wettest April on record was 1991 with 134 mm. On average, April sees 66 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 Carrickfergus 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.
