December is one of the cooler months of the year in Ebbw Vale, with average highs near 6.1°C and lows around 1.8°C (mean 4°C). It is a relatively wet time of year, averaging 111 mm of rainfall and 96% relative humidity across the period.
December is one of the cooler months of the year in Ebbw Vale. Across 45 years of records, the warmest December in Ebbw Vale was 2015 — when the month averaged 8.2°C — while the coldest was 2010 at -1.1°C. Typical December days reach 6.1°C with nights near 1.8°C. The long-term trend is warming, about 0.5°C per decade.
December is a relatively wet time of year in Ebbw Vale, averaging 111 mm of rainfall. The wettest December on record was 2015 with 220 mm, while the driest was 1988 at 31 mm.
Relative humidity in Ebbw Vale during December averages 96%. The most humid December was 2016 at 98%, and the least humid was 2011 at 95%.
December receives about 0.6 kWh/m²/day of solar energy in Ebbw Vale. The sunniest December was 2001 at 0.8 kWh/m²/day, and the cloudiest were 2015, 2018 and 2021, among others at 0.5.
Average wind speed in Ebbw Vale during December is 3.8 m/s. The windiest December was 2015 at 5.4 m/s, while the calmest was 2010 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.7°C | 3.2°C | 3.7°C | 4.5°C | 5.0°C | +1.3°C |
| Avg High | 5.9°C | 5.3°C | 5.8°C | 6.7°C | 7.0°C | +1.1°C |
| Avg Low | 1.5°C | 1.0°C | 1.6°C | 2.3°C | 3.0°C | +1.5°C |
| Avg Rain | 99 mm | 103 mm | 98 mm | 119 mm | 150 mm | +51 mm |
December temperatures in Ebbw Vale have risen by about 2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -10.1°C (1981) to a record high of 12.5°C (1985).
Rainfall in December is a relatively wet time of year, averaging 111 mm, with a wettest year of 220 mm.
A quieter season to visit Ebbw Vale
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Ebbw Vale. That said, December — with days averaging 6.1°C and nights around 1.8°C (mean 4°C) and higher rainfall (111 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 7.4°C | 5.4°C | 3.4°C | 12.4°C | -2.1°C | 164 mm | 96% | 4 m/s | — |
| 2024 | 7.7°C | 5.8°C | 3.8°C | 12.4°C | 0.0°C | 114 mm | 96% | 4.1 m/s | 0.6 |
| 2023 | 7.8°C | 6.0°C | 4.1°C | 11.3°C | -3.5°C | 205 mm | 96% | 4.6 m/s | 0.6 |
| 2022 | 5.2°C | 3.1°C | 1.1°C | 11.6°C | -7.9°C | 96 mm | 97% | 3.2 m/s | 0.7 |
| 2021 | 7.5°C | 5.5°C | 3.6°C | 12.2°C | -2.4°C | 125 mm | 96% | 3.7 m/s | 0.5 |
| 2020 | 6.2°C | 4.3°C | 2.3°C | 11.4°C | -2.5°C | 199 mm | 97% | 3.6 m/s | 0.6 |
| 2019 | 7.0°C | 4.9°C | 2.8°C | 11.2°C | -2.2°C | 142 mm | 97% | 3.8 m/s | 0.6 |
| 2018 | 8.0°C | 6.0°C | 4.1°C | 11.6°C | -3.3°C | 156 mm | 97% | 3.8 m/s | 0.5 |
| 2017 | 5.9°C | 3.8°C | 1.6°C | 11.2°C | -6.7°C | 137 mm | 96% | 3.7 m/s | 0.7 |
| 2016 | 7.2°C | 5.2°C | 3.2°C | 12.1°C | -1.2°C | 56 mm | 98% | 2.8 m/s | 0.6 |
| 2015 🔥 🌧️ | 10.3°C | 8.2°C | 6.1°C | 12.5°C | 1.4°C | 220 mm | 95% | 5.4 m/s | 0.5 |
| 2014 | 6.7°C | 4.2°C | 1.7°C | 10.5°C | -3.7°C | 70 mm | 95% | 4 m/s | 0.7 |
| 2013 | 7.7°C | 5.1°C | 2.5°C | 11.2°C | -0.6°C | 100 mm | 95% | 4.2 m/s | 0.6 |
| 2012 | 6.0°C | 3.9°C | 1.7°C | 10.9°C | -3.1°C | 166 mm | 96% | 3.9 m/s | 0.6 |
| 2011 | 7.3°C | 4.9°C | 2.5°C | 10.6°C | -1.6°C | 106 mm | 95% | 4.6 m/s | 0.6 |
| 2010 ❄️ | 1.0°C | -1.1°C | -3.1°C | 5.4°C | -8.5°C | 34 mm | 97% | 2.5 m/s | 0.6 |
| 2009 | 4.1°C | 2.0°C | -0.1°C | 10.3°C | -5.1°C | 105 mm | 97% | 3.3 m/s | 0.7 |
| 2008 | 4.7°C | 2.5°C | 0.3°C | 10.1°C | -4.6°C | 58 mm | 97% | 3 m/s | 0.7 |
| 2007 | 6.0°C | 3.9°C | 1.7°C | 12.4°C | -3.8°C | 97 mm | 96% | 4.2 m/s | 0.6 |
| 2006 | 7.6°C | 5.5°C | 3.4°C | 11.9°C | -1.4°C | 124 mm | 95% | 4.4 m/s | 0.6 |
| 2005 | 5.9°C | 3.9°C | 1.9°C | 9.6°C | -3.4°C | 78 mm | 96% | 3.2 m/s | 0.6 |
| 2004 | 6.7°C | 4.5°C | 2.3°C | 10.2°C | -3.8°C | 66 mm | 97% | 3.2 m/s | 0.6 |
| 2003 | 6.1°C | 3.8°C | 1.5°C | 11.2°C | -4.1°C | 112 mm | 96% | 3.5 m/s | 0.6 |
| 2002 | 5.5°C | 3.8°C | 2.1°C | 10.9°C | -3.3°C | 131 mm | 97% | 3.7 m/s | 0.5 |
| 2001 | 4.8°C | 2.3°C | -0.2°C | 11.8°C | -4.4°C | 45 mm | 96% | 3.3 m/s | 0.8 |
| 2000 | 6.1°C | 4.4°C | 2.7°C | 11.6°C | -5.1°C | 165 mm | 97% | 4.2 m/s | 0.5 |
| 1999 | 6.0°C | 3.9°C | 1.8°C | 10.8°C | -5.4°C | 145 mm | 95% | 4.6 m/s | 0.6 |
| 1998 | 7.0°C | 4.7°C | 2.3°C | 11.9°C | -3.8°C | 105 mm | 96% | 3.7 m/s | 0.5 |
| 1997 | 6.5°C | 4.5°C | 2.5°C | 11.7°C | -2.8°C | 119 mm | 96% | 3.8 m/s | 0.5 |
| 1996 | 3.3°C | 1.1°C | -1.1°C | 9.8°C | -6.4°C | 42 mm | 96% | 3.3 m/s | 0.6 |
| 1995 | 2.1°C | 0.1°C | -2.0°C | 11.6°C | -8.0°C | 118 mm | 97% | 3.1 m/s | 0.6 |
| 1994 | 7.7°C | 5.5°C | 3.3°C | 12.4°C | -2.2°C | 132 mm | 96% | 4.6 m/s | 0.6 |
| 1993 | 6.1°C | 3.9°C | 1.6°C | 11.3°C | -4.1°C | 158 mm | 95% | 4.9 m/s | 0.6 |
| 1992 | 4.5°C | 2.3°C | 0.1°C | 11.2°C | -4.6°C | 88 mm | 97% | 3.2 m/s | 0.7 |
| 1991 | 5.2°C | 3.1°C | 1.0°C | 10.8°C | -6.5°C | 35 mm | 96% | 3.3 m/s | 0.7 |
| 1990 | 4.9°C | 2.5°C | 0.1°C | 10.3°C | -3.1°C | 86 mm | 95% | 3.9 m/s | 0.7 |
| 1989 | 5.1°C | 3.1°C | 1.1°C | 10.8°C | -3.2°C | 155 mm | 97% | 3.6 m/s | 0.6 |
| 1988 | 7.8°C | 5.8°C | 3.8°C | 11.1°C | -1.6°C | 31 mm | 96% | 3.6 m/s | 0.5 |
| 1987 | 5.8°C | 4.0°C | 2.2°C | 11.7°C | -4.0°C | 65 mm | 97% | 4 m/s | 0.5 |
| 1986 | 6.8°C | 4.2°C | 1.7°C | 12.1°C | -2.8°C | 113 mm | 95% | 4.6 m/s | 0.6 |
| 1985 | 7.1°C | 5.3°C | 3.4°C | 12.5°C | -6.1°C | 129 mm | 96% | 3.9 m/s | 0.5 |
| 1984 | 6.3°C | 4.0°C | 1.8°C | 10.4°C | -2.2°C | 106 mm | 97% | 3 m/s | 0.6 |
| 1983 | 6.9°C | 4.5°C | 2.1°C | 11.6°C | -3.1°C | 104 mm | 96% | 4 m/s | — |
| 1982 | 5.3°C | 2.9°C | 0.5°C | 10.1°C | -3.1°C | 96 mm | 96% | 3.8 m/s | — |
| 1981 | 1.7°C | -0.6°C | -3.0°C | 9.9°C | -10.1°C | 96 mm | 97% | 3.1 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 6.1°C with lows near 1.8°C (mean 4°C), based on 45 years of NASA POWER data.
December averages 111 mm of rainfall in Ebbw Vale, a relatively wet time of year. The wettest on record was 220 mm in 2015.
The hottest December reached 12.5°C in 1985. The coldest dipped to -10.1°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2°C. Daytime highs moved from 5.5°C to 7.1°C and overnight lows from 1°C to 3.2°C over the same span.
December is one of the cooler months of the year in Ebbw Vale and a relatively wet time of year, so plan for around 6.1°C daytime highs and 1.8°C at night.
Not quite — December is the 3rd coolest month in Ebbw Vale, averaging 4°C.
For December in Ebbw Vale, pack warm layers and a jacket for chilly mornings, with typical highs of 6.1°C and lows of 1.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 96% — quite humid.
Average wind speed in December is 3.8 m/s. The windiest December on record averaged 5.4 m/s (2015).
The wettest December on record was 2015 with 220 mm. On average, December sees 111 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 Ebbw Vale behaves each December, 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 December specifically, along with year-by-year records and how the month has changed over the decades.
