October is one of the warmer months of the year in Carrickfergus, with average highs near 12.6°C and lows around 9.1°C (mean 10.9°C). It is a relatively wet time of year, averaging 115 mm of rainfall and 88% relative humidity across the period.
October is one of the warmer months of the year in Carrickfergus. Across 45 years of records, the warmest October in Carrickfergus was 1995 — when the month averaged 12.5°C — while the coldest was 1981 at 8°C. Typical October days reach 12.6°C with nights near 9.1°C. The long-term trend is warming, about 0.4°C per decade.
October is a relatively wet time of year in Carrickfergus, averaging 115 mm of rainfall. The wettest October on record was 2002 with 197 mm, while the driest was 2003 at 44 mm.
Relative humidity in Carrickfergus during October averages 88%. The most humid October was 2001 at 91%, and the least humid was 1993 at 84%.
October receives about 1.5 kWh/m²/day of solar energy in Carrickfergus. The sunniest Octobers were 2010 and 2015 at 1.8 kWh/m²/day, and the cloudiest was 2025 at 1.2.
Average wind speed in Carrickfergus during October is 5.4 m/s. The windiest October was 1983 at 6.8 m/s, while the calmest was 1993 at 3.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.2°C | 10.5°C | 11.1°C | 11.0°C | 11.7°C | +1.5°C |
| Avg High | 11.9°C | 12.2°C | 12.8°C | 12.8°C | 13.4°C | +1.5°C |
| Avg Low | 8.4°C | 8.9°C | 9.4°C | 9.2°C | 9.9°C | +1.5°C |
| Avg Rain | 113 mm | 105 mm | 123 mm | 109 mm | 129 mm | +16 mm |
October temperatures in Carrickfergus have risen by about 1.9°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 3.2°C (1992) to a record high of 17.9°C (2023).
Rainfall in October is a relatively wet time of year, averaging 115 mm, with a wettest year of 197 mm.
A good time to visit Carrickfergus
October is a good time to visit Carrickfergus, with days averaging 12.6°C and nights around 9.1°C (mean 10.9°C, warmer than Carrickfergus's yearly average) and higher rainfall. July and August are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 13.2°C | 11.5°C | 9.8°C | 17.2°C | 6.8°C | 106 mm | 88% | 5.2 m/s | 1.2 |
| 2024 | 13.4°C | 11.6°C | 9.8°C | 15.5°C | 6.1°C | 78 mm | 89% | 5.3 m/s | 1.6 |
| 2023 | 13.8°C | 12.1°C | 10.4°C | 17.9°C | 6.5°C | 145 mm | 88% | 5.2 m/s | 1.5 |
| 2022 | 14.2°C | 12.2°C | 10.2°C | 16.0°C | 7.7°C | 156 mm | 90% | 5.9 m/s | 1.5 |
| 2021 | 13.8°C | 12.0°C | 10.1°C | 16.7°C | 7.2°C | 143 mm | 89% | 5.2 m/s | 1.6 |
| 2020 | 12.2°C | 10.5°C | 8.8°C | 14.3°C | 6.8°C | 148 mm | 88% | 5.7 m/s | 1.6 |
| 2019 | 12.1°C | 10.3°C | 8.5°C | 15.3°C | 5.3°C | 101 mm | 86% | 5.2 m/s | 1.6 |
| 2018 | 12.4°C | 10.5°C | 8.6°C | 16.4°C | 4.4°C | 73 mm | 86% | 5.1 m/s | 1.6 |
| 2017 | 13.6°C | 11.8°C | 9.9°C | 16.7°C | 7.5°C | 111 mm | 90% | 5.9 m/s | 1.3 |
| 2016 | 12.7°C | 11.3°C | 9.8°C | 14.8°C | 7.6°C | 47 mm | 87% | 4.5 m/s | 1.7 |
| 2015 | 13.0°C | 11.2°C | 9.4°C | 15.8°C | 6.9°C | 69 mm | 88% | 4.2 m/s | 1.8 |
| 2014 | 13.4°C | 11.5°C | 9.7°C | 16.3°C | 6.8°C | 164 mm | 88% | 5.6 m/s | 1.6 |
| 2013 | 13.4°C | 11.6°C | 9.8°C | 16.9°C | 6.1°C | 155 mm | 91% | 5.5 m/s | 1.5 |
| 2012 | 11.1°C | 9.4°C | 7.7°C | 13.3°C | 4.4°C | 118 mm | 88% | 4.4 m/s | 1.7 |
| 2011 | 13.4°C | 11.6°C | 9.8°C | 16.8°C | 5.9°C | 174 mm | 91% | 5.9 m/s | 1.3 |
| 2010 | 12.7°C | 10.8°C | 8.8°C | 16.5°C | 5.0°C | 81 mm | 88% | 5.2 m/s | 1.8 |
| 2009 | 13.4°C | 11.7°C | 10.1°C | 15.3°C | 6.5°C | 91 mm | 88% | 4.9 m/s | 1.5 |
| 2008 | 11.6°C | 9.8°C | 7.9°C | 15.5°C | 3.6°C | 147 mm | 89% | 6.3 m/s | 1.5 |
| 2007 | 14.0°C | 12.2°C | 10.3°C | 16.9°C | 7.5°C | 49 mm | 89% | 4.2 m/s | 1.7 |
| 2006 | 14.2°C | 12.4°C | 10.6°C | 16.5°C | 7.7°C | 120 mm | 90% | 5.1 m/s | 1.6 |
| 2005 | 13.6°C | 12.1°C | 10.5°C | 15.5°C | 7.5°C | 150 mm | 89% | 5.7 m/s | 1.3 |
| 2004 | 11.8°C | 10.2°C | 8.6°C | 14.8°C | 4.8°C | 144 mm | 88% | 5.4 m/s | 1.5 |
| 2003 | 11.6°C | 10.0°C | 8.5°C | 15.8°C | 4.6°C | 44 mm | 86% | 5.3 m/s | 1.7 |
| 2002 🌧️ | 11.8°C | 10.3°C | 8.7°C | 16.4°C | 3.9°C | 197 mm | 88% | 5.2 m/s | 1.5 |
| 2001 | 13.9°C | 12.4°C | 10.9°C | 16.7°C | 8.0°C | 138 mm | 91% | 6.1 m/s | 1.5 |
| 2000 | 12.0°C | 10.0°C | 8.1°C | 16.0°C | 4.7°C | 154 mm | 89% | 6.3 m/s | 1.3 |
| 1999 | 12.6°C | 11.0°C | 9.4°C | 16.4°C | 6.5°C | 57 mm | 87% | 5.9 m/s | 1.5 |
| 1998 | 12.2°C | 10.5°C | 8.7°C | 16.7°C | 5.4°C | 135 mm | 86% | 6.3 m/s | 1.5 |
| 1997 | 13.0°C | 11.1°C | 9.3°C | 17.0°C | 6.6°C | 66 mm | 87% | 4.6 m/s | 1.5 |
| 1996 | 12.9°C | 11.1°C | 9.4°C | 15.4°C | 6.7°C | 129 mm | 90% | 6.4 m/s | 1.4 |
| 1995 🔥 | 14.3°C | 12.5°C | 10.7°C | 17.4°C | 6.7°C | 139 mm | 89% | 6.2 m/s | 1.5 |
| 1994 | 12.4°C | 10.6°C | 8.9°C | 15.3°C | 5.1°C | 99 mm | 90% | 5 m/s | 1.5 |
| 1993 | 10.1°C | 8.7°C | 7.2°C | 13.1°C | 3.8°C | 66 mm | 84% | 3.8 m/s | 1.5 |
| 1992 | 9.8°C | 8.2°C | 6.7°C | 13.8°C | 3.2°C | 71 mm | 87% | 4.8 m/s | 1.5 |
| 1991 | 12.0°C | 10.2°C | 8.4°C | 16.2°C | 5.9°C | 102 mm | 87% | 5.6 m/s | 1.4 |
| 1990 | 12.8°C | 11.3°C | 9.8°C | 16.9°C | 6.1°C | 184 mm | 89% | 6.2 m/s | 1.3 |
| 1989 | 13.2°C | 11.4°C | 9.6°C | 15.4°C | 7.2°C | 117 mm | 89% | 5.7 m/s | 1.3 |
| 1988 | 12.1°C | 10.6°C | 9.1°C | 14.5°C | 4.1°C | 117 mm | 89% | 5.4 m/s | 1.5 |
| 1987 | 11.0°C | 9.1°C | 7.3°C | 14.2°C | 4.3°C | 122 mm | 89% | 4.8 m/s | 1.5 |
| 1986 | 12.1°C | 10.1°C | 8.0°C | 15.8°C | 5.1°C | 87 mm | 90% | 5.6 m/s | 1.5 |
| 1985 | 12.5°C | 11.0°C | 9.5°C | 16.5°C | 5.4°C | 47 mm | 88% | 4.2 m/s | 1.5 |
| 1984 | 12.4°C | 10.5°C | 8.5°C | 16.6°C | 5.5°C | 114 mm | 89% | 5.4 m/s | 1.4 |
| 1983 | 12.1°C | 10.4°C | 8.6°C | 16.9°C | 3.5°C | 107 mm | 86% | 6.8 m/s | — |
| 1982 | 12.0°C | 10.3°C | 8.5°C | 14.8°C | 4.8°C | 144 mm | 87% | 5.6 m/s | — |
| 1981 ❄️ | 9.7°C | 8.0°C | 6.3°C | 14.0°C | 4.0°C | 164 mm | 87% | 5.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 12.6°C with lows near 9.1°C (mean 10.9°C), based on 45 years of NASA POWER data.
October averages 115 mm of rainfall in Carrickfergus, a relatively wet time of year. The wettest on record was 197 mm in 2002.
The hottest October reached 17.9°C in 2023. The coldest dipped to 3.2°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.9°C. Daytime highs moved from 11.7°C to 13.7°C and overnight lows from 8.3°C to 10.1°C over the same span.
October is one of the warmer months of the year in Carrickfergus and a relatively wet time of year, so plan for around 12.6°C daytime highs and 9.1°C at night.
Not quite — October is the 8th coolest month in Carrickfergus, averaging 10.9°C.
For October in Carrickfergus, pack light layers you can adjust through the day, with typical highs of 12.6°C and lows of 9.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 88% — quite humid.
Average wind speed in October is 5.4 m/s. The windiest October on record averaged 6.8 m/s (1983).
The wettest October on record was 2002 with 197 mm. On average, October sees 115 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 October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
