December is one of the warmer months of the year in Esperance, with average highs near 20.9°C and lows around 15.9°C (mean 18.4°C). It is one of the drier months, averaging 18 mm of rainfall and 73% relative humidity across the period.
December is one of the warmer months of the year in Esperance. Across 45 years of records, the warmest December in Esperance was 2019 — when the month averaged 20.2°C — while the coldest was 2001 at 16.6°C. Typical December days reach 20.9°C with nights near 15.9°C. The long-term trend is warming, about 0.2°C per decade.
December is one of the drier months in Esperance, averaging 18 mm of rainfall. The wettest December on record was 2011 with 78 mm, while the driest was 2021 at 1 mm.
Relative humidity in Esperance during December averages 73%. The most humid December was 1995 at 77%, and the least humid were 1981 and 1993 at 69%.
December receives about 7.7 kWh/m²/day of solar energy in Esperance. The sunniest December was 1993 at 8.5 kWh/m²/day, and the cloudiest was 1995 at 6.7.
Average wind speed in Esperance during December is 5.5 m/s. The windiest December was 1999 at 6.3 m/s, while the calmest was 1982 at 4.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.2°C | 18.3°C | 18.2°C | 18.7°C | 18.6°C | +0.4°C |
| Avg High | 20.7°C | 20.7°C | 20.7°C | 21.2°C | 21.1°C | +0.4°C |
| Avg Low | 15.7°C | 15.9°C | 15.8°C | 16.2°C | 16.2°C | +0.5°C |
| Avg Rain | 15 mm | 15 mm | 20 mm | 32 mm | 5 mm | -10 mm |
December temperatures in Esperance have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 11.8°C (1992) to a record high of 34.8°C (2025).
Rainfall in December is one of the drier months, averaging 18 mm, with a wettest year of 78 mm.
One of the best times to visit Esperance
December is one of the best times to visit Esperance. Expect days averaging 20.9°C and nights around 15.9°C (mean 18.4°C) — warmer than Esperance's yearly average — with low rainfall (18 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 21.6°C | 19.1°C | 16.5°C | 34.8°C | 14.8°C | 1 mm | 72% | 5.6 m/s | — |
| 2024 | 22.0°C | 19.5°C | 16.9°C | 29.4°C | 15.7°C | 9 mm | 72% | 5.6 m/s | 8 |
| 2023 | 21.0°C | 18.6°C | 16.3°C | 31.7°C | 14.6°C | 3 mm | 73% | 6 m/s | 7.8 |
| 2022 | 20.2°C | 18.0°C | 15.9°C | 30.2°C | 14.5°C | 7 mm | 75% | 5.5 m/s | 7.5 |
| 2021 | 21.2°C | 18.5°C | 15.8°C | 30.7°C | 13.4°C | 1 mm | 72% | 5.8 m/s | 8.3 |
| 2020 | 20.6°C | 18.1°C | 15.7°C | 32.6°C | 13.8°C | 6 mm | 73% | 6.1 m/s | 7.7 |
| 2019 🔥 | 23.2°C | 20.2°C | 17.3°C | 32.5°C | 13.9°C | 11 mm | 74% | 4.9 m/s | 8.2 |
| 2018 | 21.1°C | 18.4°C | 15.8°C | 29.0°C | 13.8°C | 24 mm | 74% | 5.1 m/s | 7.8 |
| 2017 | 21.1°C | 18.7°C | 16.2°C | 29.5°C | 13.0°C | 19 mm | 71% | 5.1 m/s | 7.9 |
| 2016 | 20.4°C | 17.8°C | 15.3°C | 30.2°C | 13.7°C | 30 mm | 73% | 5.8 m/s | 7.7 |
| 2015 | 21.2°C | 18.7°C | 16.2°C | 33.3°C | 13.5°C | 69 mm | 74% | 5.8 m/s | 7.5 |
| 2014 | 20.6°C | 18.2°C | 15.9°C | 30.0°C | 13.8°C | 34 mm | 74% | 5.2 m/s | 7.7 |
| 2013 | 21.6°C | 18.8°C | 16.0°C | 32.7°C | 13.9°C | 23 mm | 71% | 5.1 m/s | 7.7 |
| 2012 | 21.7°C | 19.1°C | 16.5°C | 29.3°C | 14.2°C | 16 mm | 75% | 5.3 m/s | 7.8 |
| 2011 🌧️ | 21.2°C | 18.8°C | 16.4°C | 28.9°C | 13.8°C | 78 mm | 77% | 5.4 m/s | 6.9 |
| 2010 | 20.3°C | 18.1°C | 16.0°C | 26.5°C | 14.5°C | 18 mm | 74% | 5.7 m/s | 6.9 |
| 2009 | 21.3°C | 18.6°C | 15.9°C | 31.7°C | 13.4°C | 6 mm | 71% | 5.3 m/s | 8.3 |
| 2008 | 20.3°C | 18.2°C | 16.1°C | 28.4°C | 14.5°C | 46 mm | 77% | 5.1 m/s | 7.5 |
| 2007 | 19.9°C | 17.8°C | 15.7°C | 32.8°C | 14.0°C | 40 mm | 74% | 5.7 m/s | 7.3 |
| 2006 | 21.8°C | 19.1°C | 16.4°C | 32.2°C | 14.2°C | 15 mm | 70% | 5.4 m/s | 7.9 |
| 2005 | 19.9°C | 17.6°C | 15.4°C | 31.2°C | 13.0°C | 10 mm | 73% | 5.6 m/s | 8.3 |
| 2004 | 22.0°C | 19.0°C | 16.1°C | 33.2°C | 14.1°C | 4 mm | 70% | 5.8 m/s | 8.2 |
| 2003 | 20.9°C | 18.1°C | 15.4°C | 29.5°C | 13.3°C | 10 mm | 76% | 5.4 m/s | 8 |
| 2002 | 20.5°C | 18.0°C | 15.6°C | 28.1°C | 12.2°C | 23 mm | 75% | 5.9 m/s | 7 |
| 2001 ❄️ | 18.4°C | 16.6°C | 14.8°C | 25.0°C | 12.3°C | 36 mm | 75% | 5.3 m/s | 7 |
| 2000 | 21.6°C | 19.1°C | 16.6°C | 29.8°C | 13.9°C | 12 mm | 73% | 5.4 m/s | 8.1 |
| 1999 | 20.4°C | 18.3°C | 16.1°C | 27.2°C | 13.9°C | 30 mm | 75% | 6.3 m/s | 7.4 |
| 1998 | 21.1°C | 18.7°C | 16.3°C | 28.6°C | 14.0°C | 15 mm | 74% | 5.5 m/s | 7.8 |
| 1997 | 21.5°C | 18.9°C | 16.4°C | 31.1°C | 15.1°C | 9 mm | 74% | 5.5 m/s | 8.1 |
| 1996 | 20.1°C | 18.1°C | 16.1°C | 30.0°C | 13.8°C | 7 mm | 71% | 5.5 m/s | 8 |
| 1995 | 19.8°C | 17.8°C | 15.7°C | 23.9°C | 13.5°C | 42 mm | 77% | 5.7 m/s | 6.7 |
| 1994 | 21.5°C | 19.0°C | 16.5°C | 32.8°C | 13.6°C | 5 mm | 72% | 5.4 m/s | 7.8 |
| 1993 | 21.1°C | 18.3°C | 15.4°C | 31.6°C | 13.5°C | 4 mm | 69% | 5.6 m/s | 8.5 |
| 1992 | 19.7°C | 17.1°C | 14.5°C | 29.8°C | 11.8°C | 12 mm | 74% | 5.2 m/s | 7.7 |
| 1991 | 21.2°C | 18.6°C | 16.0°C | 28.0°C | 13.7°C | 14 mm | 75% | 5.1 m/s | 7.4 |
| 1990 | 20.2°C | 17.9°C | 15.7°C | 28.5°C | 13.4°C | 9 mm | 73% | 5.1 m/s | 7.9 |
| 1989 | 21.4°C | 18.7°C | 15.9°C | 33.2°C | 14.6°C | 13 mm | 70% | 5.6 m/s | 8 |
| 1988 | 20.2°C | 17.9°C | 15.6°C | 33.3°C | 13.8°C | 16 mm | 72% | 5.4 m/s | 7.4 |
| 1987 | 21.2°C | 18.6°C | 16.1°C | 29.9°C | 13.6°C | 9 mm | 73% | 5.8 m/s | 7.6 |
| 1986 | 19.2°C | 17.0°C | 14.7°C | 28.6°C | 12.8°C | 14 mm | 73% | 5.1 m/s | 7.6 |
| 1985 | 20.0°C | 17.5°C | 15.1°C | 30.6°C | 13.5°C | 8 mm | 71% | 5.9 m/s | 7.9 |
| 1984 | 20.7°C | 18.2°C | 15.8°C | 30.3°C | 13.4°C | 8 mm | 71% | 5.1 m/s | 7.7 |
| 1983 | 21.1°C | 18.4°C | 15.6°C | 31.4°C | 12.8°C | 42 mm | 75% | 5.1 m/s | — |
| 1982 | 22.4°C | 19.9°C | 17.3°C | 28.8°C | 12.8°C | 14 mm | 71% | 4.8 m/s | — |
| 1981 | 20.0°C | 17.7°C | 15.3°C | 28.6°C | 12.6°C | 8 mm | 69% | 5.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 20.9°C with lows near 15.9°C (mean 18.4°C), based on 45 years of NASA POWER data.
December averages 18 mm of rainfall in Esperance, one of the drier months. The wettest on record was 78 mm in 2011.
The hottest December reached 34.8°C in 2025. The coldest dipped to 11.8°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.4°C. Daytime highs moved from 20.8°C to 21.2°C and overnight lows from 15.8°C to 16.3°C over the same span.
December is one of the warmer months of the year in Esperance and one of the drier months, so plan for around 20.9°C daytime highs and 15.9°C at night.
Not quite — December is the 8th coolest month in Esperance, averaging 18.4°C.
For December in Esperance, pack light layers you can adjust through the day, with typical highs of 20.9°C and lows of 15.9°C.
Relative humidity in December averages 73% — moderately humid.
Average wind speed in December is 5.5 m/s. The windiest December on record averaged 6.3 m/s (1999).
The wettest December on record was 2011 with 78 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 Esperance 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.
