December is one of the cooler months of the year in Una, with average highs near 25.2°C and lows around 6.7°C (mean 16°C). It is one of the drier months, averaging 13 mm of rainfall and 39% relative humidity across the period.
December is one of the cooler months of the year in Una. Across 45 years of records, the warmest December in Una was 1998 — when the month averaged 18.6°C — while the coldest was 2019 at 13.1°C. Typical December days reach 25.2°C with nights near 6.7°C. The long-term December temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.6°C | 16.1°C | 16.7°C | 15.7°C | 15.9°C | +0.3°C |
| Avg High | 24.7°C | 25.5°C | 25.7°C | 25.1°C | 25.1°C | +0.4°C |
| Avg Low | 6.4°C | 6.6°C | 7.7°C | 6.3°C | 6.6°C | +0.2°C |
| Avg Rain | 20 mm | 6 mm | 9 mm | 19 mm | 13 mm | -7 mm |
December temperatures in Una have risen by about 0.7°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 2.6°C (2019) to a record high of 29.3°C (1998).
Rainfall in December is one of the drier months, averaging 13 mm, with a wettest year of 72 mm.
A good time to visit Una
December is a good time to visit Una, with days averaging 25.2°C and nights around 6.7°C (mean 16°C, cooler than Una's yearly average) and low rainfall. March and November are marginally more temperate, but December still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 23.2°C | 8.5°C | 15.8°C | 0 mm | 51% | 1.1 m/s | — |
| 2024 | 25.1°C | 7.0°C | 16.0°C | 43 mm | 45% | 1.4 m/s | 3.2 |
| 2023 | 24.8°C | 8.3°C | 16.5°C | 2 mm | 55% | 1.2 m/s | 3.3 |
| 2022 | 25.4°C | 6.7°C | 16.1°C | 4 mm | 53% | 1.4 m/s | 3.4 |
| 2021 | 25.8°C | 4.9°C | 15.3°C | 9 mm | 51% | 1.3 m/s | 3.3 |
| 2020 | 26.5°C | 4.2°C | 15.4°C | 22 mm | 47% | 1.4 m/s | 3.4 |
| 2019 ❄️ | 23.6°C | 2.6°C | 13.1°C | 51 mm | 53% | 1.2 m/s | 2.9 |
| 2018 | 23.2°C | 3.8°C | 13.5°C | 7 mm | 49% | 1.2 m/s | 3.5 |
| 2017 | 26.1°C | 8.1°C | 17.1°C | 28 mm | 41% | 1.3 m/s | 3.1 |
| 2016 | 26.3°C | 9.1°C | 17.7°C | 2 mm | 32% | 1.3 m/s | 3.4 |
| 2015 | 25.2°C | 5.0°C | 15.1°C | 23 mm | 42% | 1.4 m/s | 3.3 |
| 2014 | 26.0°C | 6.2°C | 16.1°C | 14 mm | 41% | 1.3 m/s | 3.2 |
| 2013 | 24.9°C | 5.1°C | 15.0°C | 5 mm | 43% | 1.4 m/s | 3.4 |
| 2012 | 26.5°C | 7.3°C | 16.9°C | 25 mm | 43% | 1.5 m/s | 3.1 |
| 2011 | 25.5°C | 7.7°C | 16.6°C | 4 mm | 37% | 1.2 m/s | 3.5 |
| 2010 | 23.3°C | 7.6°C | 15.4°C | 29 mm | 45% | 1.3 m/s | 3.4 |
| 2009 | 25.0°C | 7.6°C | 16.3°C | 0 mm | 34% | 1.2 m/s | 3.2 |
| 2008 | 26.1°C | 9.4°C | 17.7°C | 8 mm | 44% | 1.3 m/s | 3.3 |
| 2007 | 25.4°C | 6.7°C | 16.1°C | 3 mm | 36% | 1.5 m/s | 3.3 |
| 2006 | 23.5°C | 7.9°C | 15.7°C | 18 mm | 49% | 1.5 m/s | 3.1 |
| 2005 | 24.1°C | 7.6°C | 15.8°C | 0 mm | 28% | 1.4 m/s | 3.6 |
| 2004 | 26.8°C | 6.6°C | 16.7°C | 15 mm | 37% | 1.5 m/s | 3.2 |
| 2003 | 26.6°C | 6.5°C | 16.5°C | 24 mm | 45% | 1.4 m/s | 3 |
| 2002 | 25.9°C | 7.8°C | 16.8°C | 7 mm | 37% | 1.4 m/s | 3.2 |
| 2001 | 27.5°C | 7.8°C | 17.6°C | 8 mm | 31% | 1.4 m/s | 3.2 |
| 2000 | 26.2°C | 9.1°C | 17.6°C | 2 mm | 24% | 1.4 m/s | 3.5 |
| 1999 | 26.9°C | 8.5°C | 17.7°C | 0 mm | 19% | 1.4 m/s | 3.5 |
| 1998 🔥 | 29.3°C | 7.9°C | 18.6°C | 0 mm | 25% | 1.3 m/s | 3.6 |
| 1997 | 23.6°C | 4.3°C | 14.0°C | 13 mm | 53% | 1.2 m/s | 2.7 |
| 1996 | 23.5°C | 5.9°C | 14.7°C | 1 mm | 31% | 1.4 m/s | 3.4 |
| 1995 | 23.1°C | 8.7°C | 15.9°C | 3 mm | 40% | 1.4 m/s | 3 |
| 1994 | 24.6°C | 5.4°C | 15.0°C | 16 mm | 38% | 1.6 m/s | 3.1 |
| 1993 | 28.4°C | 8.7°C | 18.5°C | 0 mm | 19% | 1.4 m/s | 3.2 |
| 1992 | 24.2°C | 8.2°C | 16.2°C | 3 mm | 39% | 1.4 m/s | 3.2 |
| 1991 | 26.6°C | 5.7°C | 16.2°C | 23 mm | 40% | 1.4 m/s | 2.9 |
| 1990 | 24.5°C | 3.1°C | 13.8°C | 4 mm | 39% | 1.8 m/s | 3 |
| 1989 🌧️ | 25.0°C | 6.8°C | 15.9°C | 72 mm | 40% | 1.4 m/s | 3 |
| 1988 | 24.4°C | 7.5°C | 16.0°C | 38 mm | 44% | 1.5 m/s | 3.1 |
| 1987 | 26.8°C | 9.2°C | 18.0°C | 4 mm | 19% | 1.4 m/s | 3.1 |
| 1986 | 24.3°C | 4.3°C | 14.3°C | 16 mm | 39% | 1.5 m/s | 2.9 |
| 1985 | 25.5°C | 5.4°C | 15.4°C | 32 mm | 47% | 1.6 m/s | 3 |
| 1984 | 24.4°C | 5.6°C | 15.0°C | 7 mm | 37% | 1.5 m/s | 2.9 |
| 1983 | 25.2°C | 5.6°C | 15.4°C | 2 mm | 30% | 1.4 m/s | — |
| 1982 | 24.7°C | 5.6°C | 15.1°C | 12 mm | 43% | 1.5 m/s | — |
| 1981 | 22.2°C | 7.7°C | 15.0°C | 2 mm | 38% | 1.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 25.2°C with lows near 6.7°C (mean 16°C), based on 45 years of NASA POWER data.
December averages 13 mm of rainfall in Una, one of the drier months. The wettest on record was 72 mm in 1989.
The hottest December reached 29.3°C in 1998. The coldest dipped to 2.6°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.7°C. Daytime highs moved from 24.4°C to 24.9°C and overnight lows from 6°C to 7.1°C over the same span.
December is one of the cooler months of the year in Una and one of the drier months, so plan for around 25.2°C daytime highs and 6.7°C at night.
Not quite — December is the 2nd coolest month in Una, averaging 16°C.
For December in Una, pack warm layers and a jacket for chilly mornings, with typical highs of 25.2°C and lows of 6.7°C.
Relative humidity in December averages 39% — relatively dry.
Average wind speed in December is 1.4 m/s. The windiest December on record averaged 1.8 m/s (1990).
The wettest December on record was 1989 with 72 mm. On average, December sees 13 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 Una 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.
