December is one of the cooler months of the year in Odessa, with average highs near 14.5°C and lows around 0.5°C (mean 7.5°C). It is one of the drier months, averaging 18 mm of rainfall and 57% relative humidity across the period.
December is one of the cooler months of the year in Odessa. Across 45 years of records, the warmest December in Odessa was 2021 — when the month averaged 13.7°C — while the coldest was 1983 at 3.8°C. Typical December days reach 14.5°C with nights near 0.5°C. The long-term trend is warming, about 0.7°C per decade.
December is one of the drier months in Odessa, averaging 18 mm of rainfall. The wettest December on record was 1986 with 80 mm, while the driest was 2003 at 0 mm.
Relative humidity in Odessa during December averages 57%. The most humid December was 1986 at 79%, and the least humid was 2021 at 40%.
December receives about 3.2 kWh/m²/day of solar energy in Odessa. The sunniest December was 2003 at 3.7 kWh/m²/day, and the cloudiest was 1984 at 2.6.
Average wind speed in Odessa during December is 3 m/s. The windiest Decembers were 1983 and 1997 at 3.5 m/s, while the calmest was 1994 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.3°C | 7.3°C | 6.8°C | 7.7°C | 10.4°C | +4.1°C |
| Avg High | 13.0°C | 14.2°C | 13.9°C | 14.7°C | 17.8°C | +4.8°C |
| Avg Low | -0.4°C | 0.4°C | -0.4°C | 0.8°C | 3.0°C | +3.4°C |
| Avg Rain | 22 mm | 23 mm | 15 mm | 19 mm | 9 mm | -13 mm |
December temperatures in Odessa have risen by about 4.3°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -14.3°C (1983) to a record high of 28.8°C (2021).
Rainfall in December is one of the drier months, averaging 18 mm, with a wettest year of 80 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.9°C per decade while lows rose 0.6°C per decade, widening the gap between day and night.
A quieter season to visit Odessa
If your dates are flexible, the more temperate months of May and September tend to be the most comfortable for visiting Odessa. That said, December — with days averaging 14.5°C and nights around 0.5°C (mean 7.5°C) and low rainfall (18 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 | 19.7°C | 11.6°C | 3.5°C | 28.8°C | -2.5°C | 2 mm | 48% | 2.7 m/s | — |
| 2024 | 18.3°C | 10.9°C | 3.5°C | 24.6°C | -2.9°C | 1 mm | 51% | 2.7 m/s | 3.4 |
| 2023 | 17.0°C | 9.7°C | 2.4°C | 24.7°C | -3.6°C | 21 mm | 55% | 3 m/s | 3.5 |
| 2022 | 15.5°C | 9.0°C | 2.5°C | 24.9°C | -10.8°C | 6 mm | 58% | 3 m/s | 3.2 |
| 2021 🔥 | 21.2°C | 13.7°C | 6.1°C | 28.8°C | -1.6°C | 1 mm | 40% | 3 m/s | 3.2 |
| 2020 | 15.3°C | 7.6°C | 0.0°C | 24.9°C | -4.9°C | 22 mm | 42% | 3.1 m/s | 3.5 |
| 2019 | 16.5°C | 9.1°C | 1.7°C | 24.5°C | -4.6°C | 14 mm | 53% | 2.8 m/s | 3.4 |
| 2018 | 13.3°C | 7.2°C | 1.0°C | 22.5°C | -3.7°C | 31 mm | 64% | 3.2 m/s | 2.9 |
| 2017 | 14.2°C | 7.3°C | 0.5°C | 24.4°C | -7.6°C | 12 mm | 57% | 2.8 m/s | 3 |
| 2016 | 14.8°C | 8.0°C | 1.2°C | 24.5°C | -9.9°C | 21 mm | 62% | 3.2 m/s | 2.8 |
| 2015 | 15.9°C | 8.3°C | 0.6°C | 24.8°C | -6.5°C | 26 mm | 60% | 3.2 m/s | 3.4 |
| 2014 | 15.4°C | 9.1°C | 2.8°C | 24.3°C | -7.7°C | 10 mm | 64% | 3.1 m/s | 2.9 |
| 2013 | 13.0°C | 6.1°C | -0.8°C | 24.9°C | -8.0°C | 34 mm | 57% | 3 m/s | 3.1 |
| 2012 | 16.0°C | 8.4°C | 0.7°C | 25.7°C | -5.6°C | 3 mm | 44% | 3.1 m/s | 3.4 |
| 2011 | 11.2°C | 5.2°C | -0.7°C | 23.7°C | -6.9°C | 34 mm | 65% | 3.3 m/s | 2.7 |
| 2010 | 16.2°C | 8.6°C | 1.0°C | 24.5°C | -3.8°C | 1 mm | 49% | 3 m/s | 3.5 |
| 2009 | 11.6°C | 4.9°C | -1.8°C | 20.0°C | -6.4°C | 23 mm | 61% | 2.8 m/s | 3.1 |
| 2008 | 15.3°C | 7.5°C | -0.3°C | 23.5°C | -7.4°C | 2 mm | 48% | 3.4 m/s | 3.4 |
| 2007 | 14.7°C | 7.4°C | 0.2°C | 23.2°C | -4.9°C | 16 mm | 55% | 3.1 m/s | 3.5 |
| 2006 | 13.9°C | 6.7°C | -0.4°C | 22.1°C | -5.2°C | 35 mm | 59% | 3.2 m/s | 3.3 |
| 2005 | 14.4°C | 7.2°C | 0.0°C | 25.2°C | -9.5°C | 2 mm | 52% | 2.9 m/s | 3.4 |
| 2004 | 13.2°C | 6.4°C | -0.4°C | 20.9°C | -8.3°C | 9 mm | 67% | 3 m/s | 3.5 |
| 2003 | 16.0°C | 8.2°C | 0.5°C | 24.4°C | -5.4°C | 0 mm | 47% | 3.2 m/s | 3.7 |
| 2002 | 14.0°C | 7.0°C | 0.0°C | 23.8°C | -4.3°C | 37 mm | 60% | 2.8 m/s | 3.1 |
| 2001 | 14.6°C | 7.4°C | 0.3°C | 22.7°C | -5.6°C | 10 mm | 53% | 3 m/s | 3.3 |
| 2000 | 11.7°C | 4.8°C | -2.0°C | 20.6°C | -6.8°C | 19 mm | 62% | 3.3 m/s | 2.9 |
| 1999 | 15.0°C | 7.5°C | 0.0°C | 22.6°C | -5.8°C | 7 mm | 47% | 3 m/s | 3.1 |
| 1998 | 14.1°C | 7.2°C | 0.3°C | 24.5°C | -8.7°C | 26 mm | 58% | 3 m/s | 3.2 |
| 1997 | 12.3°C | 5.3°C | -1.7°C | 19.4°C | -6.3°C | 59 mm | 62% | 3.5 m/s | 3.4 |
| 1996 | 15.8°C | 8.2°C | 0.5°C | 23.3°C | -7.8°C | 0 mm | 50% | 3.1 m/s | 3.4 |
| 1995 | 14.5°C | 7.3°C | 0.2°C | 24.6°C | -6.4°C | 10 mm | 54% | 2.8 m/s | 3.1 |
| 1994 | 15.7°C | 9.1°C | 2.6°C | 22.3°C | -3.3°C | 7 mm | 60% | 2.3 m/s | 2.9 |
| 1993 | 14.4°C | 7.7°C | 1.0°C | 24.6°C | -5.1°C | 9 mm | 51% | 2.8 m/s | 3.1 |
| 1992 | 13.7°C | 7.1°C | 0.5°C | 24.2°C | -5.4°C | 14 mm | 63% | 3.1 m/s | 2.7 |
| 1991 | 12.7°C | 6.9°C | 1.1°C | 20.2°C | -4.0°C | 79 mm | 73% | 2.8 m/s | 2.8 |
| 1990 | 13.6°C | 6.5°C | -0.6°C | 23.1°C | -7.6°C | 16 mm | 56% | 2.9 m/s | 3.3 |
| 1989 | 10.9°C | 3.9°C | -3.1°C | 22.8°C | -13.6°C | 4 mm | 52% | 3 m/s | 3.3 |
| 1988 | 13.9°C | 7.0°C | 0.1°C | 21.0°C | -6.1°C | 12 mm | 51% | 2.9 m/s | 3.2 |
| 1987 | 14.0°C | 6.9°C | -0.2°C | 25.3°C | -7.3°C | 16 mm | 56% | 3.2 m/s | 3.2 |
| 1986 🌧️ | 10.9°C | 5.6°C | 0.3°C | 19.9°C | -5.2°C | 80 mm | 79% | 2.6 m/s | 2.7 |
| 1985 | 13.7°C | 6.1°C | -1.5°C | 20.5°C | -7.1°C | 1 mm | 58% | 2.6 m/s | 3.5 |
| 1984 | 14.9°C | 9.0°C | 3.1°C | 21.3°C | -5.7°C | 37 mm | 69% | 3 m/s | 2.6 |
| 1983 ❄️ | 10.6°C | 3.8°C | -2.9°C | 23.2°C | -14.3°C | 5 mm | 59% | 3.5 m/s | — |
| 1982 | 12.0°C | 5.7°C | -0.6°C | 20.7°C | -6.5°C | 43 mm | 64% | 3.4 m/s | — |
| 1981 | 16.3°C | 8.9°C | 1.4°C | 23.4°C | -6.0°C | 2 mm | 53% | 2.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 14.5°C with lows near 0.5°C (mean 7.5°C), based on 45 years of NASA POWER data.
December averages 18 mm of rainfall in Odessa, one of the drier months. The wettest on record was 80 mm in 1986.
The hottest December reached 28.8°C in 2021. The coldest dipped to -14.3°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 4.3°C. Daytime highs moved from 13.5°C to 18.3°C and overnight lows from -0.1°C to 3.6°C over the same span.
December is one of the cooler months of the year in Odessa and one of the drier months, so plan for around 14.5°C daytime highs and 0.5°C at night.
Not quite — December is the 2nd coolest month in Odessa, averaging 7.5°C.
For December in Odessa, pack warm layers and a jacket for chilly mornings, with typical highs of 14.5°C and lows of 0.5°C.
Relative humidity in December averages 57% — moderately humid.
Average wind speed in December is 3 m/s. The windiest December on record averaged 3.5 m/s (1983).
The wettest December on record was 1986 with 80 mm. On average, December sees 18 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 Odessa 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.
