December is one of the warmer months of the year in Ulladulla, with average highs near 21.8°C and lows around 17.9°C (mean 19.9°C). It is about average for rainfall, averaging 85 mm of rainfall and 76% relative humidity across the period.
December is one of the warmer months of the year in Ulladulla. Across 45 years of records, the warmest December in Ulladulla was 2000 — when the month averaged 21.8°C — while the coldest was 1995 at 17.7°C. Typical December days reach 21.8°C with nights near 17.9°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in Ulladulla, averaging 85 mm of rainfall. The wettest December on record was 2021 with 249 mm, while the driest was 2019 at 9 mm.
Relative humidity in Ulladulla during December averages 76%. The most humid December was 2023 at 83%, and the least humid was 1984 at 70%.
December receives about 6.5 kWh/m²/day of solar energy in Ulladulla. The sunniest December was 2005 at 7.7 kWh/m²/day, and the cloudiest were 1992 and 2020 at 5.8.
Average wind speed in Ulladulla during December is 4.4 m/s. The windiest Decembers were 1999 and 2002 at 5.1 m/s, while the calmest was 2005 at 3.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.5°C | 19.5°C | 20.1°C | 20.4°C | 19.9°C | +0.4°C |
| Avg High | 21.4°C | 21.6°C | 22.1°C | 22.3°C | 21.8°C | +0.4°C |
| Avg Low | 17.6°C | 17.5°C | 18.1°C | 18.3°C | 18.0°C | +0.4°C |
| Avg Rain | 102 mm | 73 mm | 63 mm | 85 mm | 118 mm | +17 mm |
December temperatures in Ulladulla have stayed relatively stable across the record.
December has ranged from a record low of 10.9°C (1995) to a record high of 34°C (1994).
Rainfall in December is about average for rainfall, averaging 85 mm, with a wettest year of 249 mm.
One of the best times to visit Ulladulla
December is one of the best times to visit Ulladulla. Expect days averaging 21.8°C and nights around 17.9°C (mean 19.9°C) — warmer than Ulladulla's yearly average — with higher rainfall (85 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 | 22.5°C | 20.1°C | 17.8°C | 28.7°C | 14.3°C | 26 mm | 71% | 4.1 m/s | — |
| 2024 | 23.6°C | 21.4°C | 19.2°C | 29.6°C | 16.7°C | 35 mm | 76% | 4.1 m/s | 7.1 |
| 2023 | 22.4°C | 20.9°C | 19.3°C | 27.9°C | 16.8°C | 242 mm | 83% | 4.4 m/s | 6.1 |
| 2022 | 20.1°C | 18.2°C | 16.4°C | 25.1°C | 12.8°C | 52 mm | 76% | 4.5 m/s | 7 |
| 2021 🌧️ | 20.4°C | 18.9°C | 17.4°C | 25.7°C | 15.1°C | 249 mm | 82% | 4.3 m/s | 6 |
| 2020 | 21.5°C | 19.7°C | 18.0°C | 26.6°C | 15.5°C | 105 mm | 76% | 4.5 m/s | 5.8 |
| 2019 | 22.7°C | 20.3°C | 17.8°C | 32.1°C | 15.0°C | 9 mm | 73% | 4.3 m/s | 6.5 |
| 2018 | 23.0°C | 21.0°C | 19.1°C | 28.4°C | 16.2°C | 148 mm | 80% | 4.1 m/s | 6.4 |
| 2017 | 23.3°C | 21.3°C | 19.3°C | 30.5°C | 16.1°C | 115 mm | 79% | 4.1 m/s | 5.9 |
| 2016 | 23.7°C | 21.4°C | 19.0°C | 31.5°C | 16.2°C | 78 mm | 76% | 4.1 m/s | 6.1 |
| 2015 | 22.7°C | 20.6°C | 18.6°C | 28.7°C | 16.0°C | 44 mm | 74% | 4.3 m/s | 7 |
| 2014 | 22.1°C | 20.4°C | 18.6°C | 26.6°C | 16.3°C | 176 mm | 79% | 4.2 m/s | 6.2 |
| 2013 | 22.9°C | 20.7°C | 18.4°C | 33.1°C | 14.6°C | 55 mm | 73% | 4.2 m/s | 6.8 |
| 2012 | 21.6°C | 19.6°C | 17.6°C | 27.2°C | 15.0°C | 43 mm | 75% | 4.5 m/s | 6.3 |
| 2011 | 19.6°C | 18.2°C | 16.8°C | 25.0°C | 13.5°C | 47 mm | 77% | 4.4 m/s | 6.4 |
| 2010 | 21.9°C | 20.0°C | 18.2°C | 25.6°C | 13.7°C | 137 mm | 80% | 4.1 m/s | 6.4 |
| 2009 | 22.3°C | 20.3°C | 18.3°C | 28.8°C | 15.8°C | 88 mm | 76% | 4.8 m/s | 6.8 |
| 2008 | 21.8°C | 19.5°C | 17.2°C | 25.7°C | 15.0°C | 78 mm | 74% | 4.6 m/s | 6.3 |
| 2007 | 22.0°C | 20.4°C | 18.8°C | 26.0°C | 16.6°C | 86 mm | 77% | 4.7 m/s | 6 |
| 2006 | 21.0°C | 19.1°C | 17.2°C | 28.7°C | 14.0°C | 87 mm | 74% | 4.9 m/s | 6.1 |
| 2005 | 23.0°C | 20.4°C | 17.9°C | 28.9°C | 15.3°C | 26 mm | 73% | 3.8 m/s | 7.7 |
| 2004 | 21.1°C | 19.4°C | 17.7°C | 29.6°C | 14.1°C | 89 mm | 78% | 4.7 m/s | 6.3 |
| 2003 | 21.9°C | 20.1°C | 18.3°C | 30.4°C | 15.7°C | 42 mm | 78% | 4.2 m/s | 6.3 |
| 2002 | 21.9°C | 20.0°C | 18.2°C | 27.3°C | 14.3°C | 54 mm | 74% | 5.1 m/s | 6.6 |
| 2001 | 22.1°C | 20.1°C | 18.1°C | 27.5°C | 15.4°C | 41 mm | 73% | 4.5 m/s | 6.3 |
| 2000 🔥 | 23.9°C | 21.8°C | 19.7°C | 30.4°C | 16.1°C | 45 mm | 72% | 4.3 m/s | 7 |
| 1999 | 21.6°C | 19.8°C | 18.0°C | 26.5°C | 15.0°C | 107 mm | 75% | 5.1 m/s | 6.4 |
| 1998 | 22.8°C | 20.9°C | 19.0°C | 28.5°C | 15.6°C | 30 mm | 76% | 4.6 m/s | 6.4 |
| 1997 | 23.2°C | 20.9°C | 18.5°C | 29.9°C | 15.2°C | 19 mm | 75% | 4.2 m/s | 6.6 |
| 1996 | 20.7°C | 18.5°C | 16.3°C | 26.5°C | 14.1°C | 41 mm | 75% | 4.5 m/s | 6.2 |
| 1995 ❄️ | 19.7°C | 17.7°C | 15.7°C | 24.4°C | 10.9°C | 75 mm | 78% | 4.5 m/s | 6.4 |
| 1994 | 21.8°C | 19.7°C | 17.6°C | 34.0°C | 14.4°C | 53 mm | 77% | 4.3 m/s | 6.9 |
| 1993 | 21.7°C | 19.6°C | 17.4°C | 29.9°C | 14.9°C | 34 mm | 75% | 4.5 m/s | 6.2 |
| 1992 | 20.2°C | 18.8°C | 17.4°C | 24.6°C | 14.4°C | 146 mm | 82% | 4.2 m/s | 5.8 |
| 1991 | 20.6°C | 18.7°C | 16.8°C | 27.0°C | 12.6°C | 180 mm | 77% | 4.3 m/s | 6.4 |
| 1990 | 23.2°C | 20.7°C | 18.3°C | 30.8°C | 13.0°C | 49 mm | 76% | 4.4 m/s | 7.2 |
| 1989 | 20.9°C | 19.2°C | 17.5°C | 26.3°C | 14.7°C | 162 mm | 76% | 4.4 m/s | 6.9 |
| 1988 | 21.4°C | 19.8°C | 18.2°C | 26.8°C | 15.1°C | 117 mm | 82% | 4.2 m/s | 5.9 |
| 1987 | 20.9°C | 19.1°C | 17.2°C | 25.4°C | 13.6°C | 91 mm | 75% | 4.6 m/s | 6.3 |
| 1986 | 20.4°C | 18.5°C | 16.6°C | 26.7°C | 14.1°C | 76 mm | 75% | 4.5 m/s | 6.9 |
| 1985 | 22.5°C | 20.5°C | 18.5°C | 27.9°C | 15.4°C | 139 mm | 75% | 3.9 m/s | 6.5 |
| 1984 | 21.3°C | 19.4°C | 17.5°C | 28.8°C | 14.8°C | 89 mm | 70% | 4.6 m/s | 6.9 |
| 1983 | 21.3°C | 19.4°C | 17.4°C | 30.9°C | 14.5°C | 93 mm | 75% | 4.2 m/s | — |
| 1982 | 22.0°C | 19.9°C | 17.9°C | 29.8°C | 15.0°C | 29 mm | 73% | 4.3 m/s | — |
| 1981 | 21.9°C | 19.9°C | 17.9°C | 29.4°C | 15.0°C | 120 mm | 76% | 4.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 21.8°C with lows near 17.9°C (mean 19.9°C), based on 45 years of NASA POWER data.
December averages 85 mm of rainfall in Ulladulla, about average for rainfall. The wettest on record was 249 mm in 2021.
The hottest December reached 34°C in 1994. The coldest dipped to 10.9°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.1°C. Daytime highs moved from 21.8°C to 21.8°C and overnight lows from 17.8°C to 18°C over the same span.
December is one of the warmer months of the year in Ulladulla and about average for rainfall, so plan for around 21.8°C daytime highs and 17.9°C at night.
Not quite — December is the 9th coolest month in Ulladulla, averaging 19.9°C.
For December in Ulladulla, pack light layers you can adjust through the day, with typical highs of 21.8°C and lows of 17.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 76% — quite humid.
Average wind speed in December is 4.4 m/s. The windiest December on record averaged 5.1 m/s (1999).
The wettest December on record was 2021 with 249 mm. On average, December sees 85 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 Ulladulla 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.
