October is one of the warmer months of the year in Llanelli, with average highs near 14.2°C and lows around 11.4°C (mean 12.8°C). It is a relatively wet time of year, averaging 130 mm of rainfall and 85% relative humidity across the period.
October is one of the warmer months of the year in Llanelli. Across 45 years of records, the warmest October in Llanelli was 2022 — when the month averaged 14.6°C — while the coldest was 1992 at 10°C. Typical October days reach 14.2°C with nights near 11.4°C. The long-term trend is warming, about 0.4°C per decade.
October is a relatively wet time of year in Llanelli, averaging 130 mm of rainfall. The wettest October on record was 2021 with 239 mm, while the driest was 2007 at 56 mm.
Relative humidity in Llanelli during October averages 85%. The most humid October was 2001 at 88%, and the least humid was 1992 at 82%.
October receives about 1.9 kWh/m²/day of solar energy in Llanelli. The sunniest October was 2022 at 2.2 kWh/m²/day, and the cloudiest were 1989 and 2005 at 1.6.
Average wind speed in Llanelli during October is 5.7 m/s. The windiest October was 1998 at 7 m/s, while the calmest was 2007 at 4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.3°C | 12.4°C | 13.0°C | 13.1°C | 13.6°C | +1.3°C |
| Avg High | 13.7°C | 13.9°C | 14.4°C | 14.5°C | 14.9°C | +1.2°C |
| Avg Low | 10.9°C | 10.9°C | 11.7°C | 11.6°C | 12.3°C | +1.4°C |
| Avg Rain | 136 mm | 108 mm | 132 mm | 121 mm | 170 mm | +34 mm |
October temperatures in Llanelli have risen by about 1.8°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 4.6°C (1983) to a record high of 20.2°C (2011).
Rainfall in October is a relatively wet time of year, averaging 130 mm, with a wettest year of 239 mm.
A good time to visit Llanelli
October is a good time to visit Llanelli, with days averaging 14.2°C and nights around 11.4°C (mean 12.8°C, warmer than Llanelli's yearly average) and higher rainfall. August and July 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 | 14.6°C | 13.3°C | 12.0°C | 17.5°C | 9.2°C | 129 mm | 85% | 5.7 m/s | 1.7 |
| 2024 | 14.9°C | 13.5°C | 12.0°C | 16.6°C | 8.8°C | 142 mm | 86% | 4.7 m/s | 2.1 |
| 2023 | 15.4°C | 14.1°C | 12.9°C | 18.4°C | 9.6°C | 185 mm | 87% | 5.1 m/s | 1.7 |
| 2022 🔥 | 16.0°C | 14.6°C | 13.3°C | 18.0°C | 11.3°C | 122 mm | 86% | 5.8 m/s | 2.2 |
| 2021 🌧️ | 15.2°C | 13.9°C | 12.7°C | 17.5°C | 9.9°C | 239 mm | 86% | 5.6 m/s | 1.9 |
| 2020 | 13.6°C | 12.3°C | 11.0°C | 15.7°C | 8.4°C | 205 mm | 85% | 6.5 m/s | 1.8 |
| 2019 | 14.0°C | 12.7°C | 11.3°C | 16.8°C | 8.0°C | 222 mm | 84% | 5.8 m/s | 1.9 |
| 2018 | 14.1°C | 12.5°C | 10.9°C | 18.9°C | 4.8°C | 119 mm | 85% | 5.3 m/s | 2 |
| 2017 | 15.0°C | 13.7°C | 12.5°C | 17.1°C | 8.4°C | 88 mm | 86% | 6 m/s | 1.7 |
| 2016 | 14.1°C | 12.6°C | 11.1°C | 16.8°C | 8.7°C | 69 mm | 85% | 4.9 m/s | 2.1 |
| 2015 | 14.4°C | 12.7°C | 11.0°C | 17.2°C | 8.4°C | 77 mm | 85% | 4.6 m/s | 2.1 |
| 2014 | 15.3°C | 14.1°C | 12.8°C | 17.8°C | 10.4°C | 131 mm | 86% | 6.2 m/s | 1.8 |
| 2013 | 15.3°C | 14.0°C | 12.7°C | 17.7°C | 9.3°C | 166 mm | 88% | 6.1 m/s | 1.8 |
| 2012 | 13.1°C | 11.7°C | 10.3°C | 16.2°C | 5.1°C | 137 mm | 85% | 5.5 m/s | 1.8 |
| 2011 | 15.0°C | 13.8°C | 12.5°C | 20.2°C | 9.1°C | 104 mm | 87% | 5.9 m/s | 1.7 |
| 2010 | 14.2°C | 12.7°C | 11.2°C | 18.4°C | 6.9°C | 97 mm | 84% | 5.5 m/s | 2.1 |
| 2009 | 14.9°C | 13.6°C | 12.3°C | 17.5°C | 9.0°C | 77 mm | 85% | 4.8 m/s | 1.8 |
| 2008 | 13.5°C | 12.0°C | 10.6°C | 17.8°C | 5.7°C | 131 mm | 85% | 6.3 m/s | 1.9 |
| 2007 | 14.5°C | 13.2°C | 11.9°C | 16.6°C | 7.2°C | 56 mm | 85% | 4 m/s | 1.9 |
| 2006 | 15.8°C | 14.4°C | 13.0°C | 17.7°C | 10.1°C | 127 mm | 86% | 5.9 m/s | 1.8 |
| 2005 | 15.4°C | 14.2°C | 12.9°C | 17.8°C | 11.2°C | 154 mm | 86% | 5.7 m/s | 1.6 |
| 2004 | 13.6°C | 12.3°C | 10.9°C | 16.1°C | 9.0°C | 162 mm | 84% | 6.6 m/s | 1.9 |
| 2003 | 13.3°C | 11.7°C | 10.1°C | 17.2°C | 5.8°C | 79 mm | 83% | 5.8 m/s | 2 |
| 2002 | 13.9°C | 12.4°C | 10.9°C | 17.1°C | 7.6°C | 171 mm | 85% | 5.6 m/s | 1.8 |
| 2001 | 15.5°C | 14.3°C | 13.1°C | 18.4°C | 10.3°C | 144 mm | 88% | 6.1 m/s | 1.9 |
| 2000 | 13.6°C | 12.3°C | 11.0°C | 17.4°C | 7.7°C | 219 mm | 84% | 6.9 m/s | 1.7 |
| 1999 | 14.2°C | 12.8°C | 11.3°C | 16.0°C | 8.0°C | 85 mm | 84% | 5.8 m/s | 1.9 |
| 1998 | 14.3°C | 12.8°C | 11.3°C | 17.2°C | 8.1°C | 186 mm | 83% | 7 m/s | 1.7 |
| 1997 | 14.8°C | 13.1°C | 11.3°C | 18.5°C | 6.2°C | 73 mm | 85% | 5.5 m/s | 1.9 |
| 1996 | 14.4°C | 13.2°C | 12.0°C | 17.2°C | 9.5°C | 124 mm | 85% | 6.5 m/s | 1.7 |
| 1995 | 15.9°C | 14.4°C | 13.0°C | 19.3°C | 10.2°C | 85 mm | 87% | 5.7 m/s | 1.9 |
| 1994 | 13.8°C | 12.1°C | 10.5°C | 16.4°C | 6.9°C | 124 mm | 86% | 5.3 m/s | 2.1 |
| 1993 | 11.8°C | 10.3°C | 8.7°C | 14.9°C | 5.1°C | 83 mm | 83% | 5 m/s | 2 |
| 1992 ❄️ | 11.4°C | 10.0°C | 8.5°C | 15.1°C | 6.0°C | 67 mm | 82% | 5.7 m/s | 1.7 |
| 1991 | 13.4°C | 12.1°C | 10.7°C | 18.3°C | 7.5°C | 131 mm | 83% | 5.5 m/s | 1.7 |
| 1990 | 14.8°C | 13.3°C | 11.8°C | 18.6°C | 9.4°C | 124 mm | 85% | 6.3 m/s | 1.8 |
| 1989 | 15.0°C | 13.6°C | 12.2°C | 17.0°C | 10.4°C | 127 mm | 85% | 6.1 m/s | 1.6 |
| 1988 | 13.7°C | 12.3°C | 10.9°C | 15.8°C | 5.9°C | 139 mm | 87% | 5.7 m/s | 1.7 |
| 1987 | 13.3°C | 11.7°C | 10.2°C | 17.7°C | 7.4°C | 189 mm | 84% | 5.5 m/s | 1.9 |
| 1986 | 14.1°C | 12.5°C | 10.8°C | 17.5°C | 8.3°C | 115 mm | 86% | 5.3 m/s | 1.9 |
| 1985 | 13.8°C | 12.4°C | 11.0°C | 17.8°C | 7.2°C | 67 mm | 86% | 4.7 m/s | 1.8 |
| 1984 | 14.1°C | 12.8°C | 11.6°C | 16.4°C | 8.1°C | 126 mm | 85% | 5.9 m/s | 1.8 |
| 1983 | 13.7°C | 12.3°C | 10.9°C | 17.3°C | 4.6°C | 116 mm | 83% | 6.5 m/s | — |
| 1982 | 13.6°C | 12.3°C | 11.0°C | 15.9°C | 9.4°C | 148 mm | 85% | 5.5 m/s | — |
| 1981 | 12.1°C | 10.6°C | 9.2°C | 16.6°C | 6.7°C | 195 mm | 83% | 6.1 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 14.2°C with lows near 11.4°C (mean 12.8°C), based on 45 years of NASA POWER data.
October averages 130 mm of rainfall in Llanelli, a relatively wet time of year. The wettest on record was 239 mm in 2021.
The hottest October reached 20.2°C in 2011. The coldest dipped to 4.6°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.8°C. Daytime highs moved from 13.5°C to 15.2°C and overnight lows from 10.7°C to 12.6°C over the same span.
October is one of the warmer months of the year in Llanelli and a relatively wet time of year, so plan for around 14.2°C daytime highs and 11.4°C at night.
Not quite — October is the 8th coolest month in Llanelli, averaging 12.8°C.
For October in Llanelli, pack light layers you can adjust through the day, with typical highs of 14.2°C and lows of 11.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 85% — quite humid.
Average wind speed in October is 5.7 m/s. The windiest October on record averaged 7 m/s (1998).
The wettest October on record was 2021 with 239 mm. On average, October sees 130 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 Llanelli 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.
