September is one of the cooler months of the year in Ulladulla, with average highs near 17.4°C and lows around 13.4°C (mean 15.4°C). It is one of the drier months, averaging 67 mm of rainfall and 72% relative humidity across the period.
September is one of the cooler months of the year in Ulladulla. Across 45 years of records, the warmest September in Ulladulla was 2023 — when the month averaged 17.5°C — while the coldest was 1984 at 13.5°C. Typical September days reach 17.4°C with nights near 13.4°C. The long-term trend is warming, about 0.4°C per decade.
September is one of the drier months in Ulladulla, averaging 67 mm of rainfall. The wettest September on record was 1985 with 206 mm, while the driest was 2017 at 2 mm.
Relative humidity in Ulladulla during September averages 72%. The most humid September was 2022 at 77%, and the least humid was 2017 at 62%.
September receives about 4.6 kWh/m²/day of solar energy in Ulladulla. The sunniest September was 2017 at 5.3 kWh/m²/day, and the cloudiest were 1995 and 1997 at 4.
Average wind speed in Ulladulla during September is 4.3 m/s. The windiest September was 2022 at 4.9 m/s, while the calmest were 1981, 1987 and 2023 at 3.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.7°C | 14.7°C | 15.9°C | 15.6°C | 16.2°C | +1.5°C |
| Avg High | 16.8°C | 16.6°C | 18.0°C | 17.6°C | 18.2°C | +1.4°C |
| Avg Low | 12.7°C | 12.8°C | 13.8°C | 13.6°C | 14.1°C | +1.4°C |
| Avg Rain | 74 mm | 90 mm | 55 mm | 47 mm | 70 mm | -4 mm |
September temperatures in Ulladulla have risen by about 1.6°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 8.6°C (1995) to a record high of 26.7°C (2023).
Rainfall in September is one of the drier months, averaging 67 mm, with a wettest year of 206 mm.
A quieter season to visit Ulladulla
If your dates are flexible, the more temperate months of January and February tend to be the most comfortable for visiting Ulladulla. That said, September — with days averaging 17.4°C and nights around 13.4°C (mean 15.4°C) and moderate rainfall (67 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 | 18.9°C | 16.8°C | 14.7°C | 22.4°C | 11.9°C | 140 mm | 69% | 4.1 m/s | 4.7 |
| 2024 | 18.6°C | 16.2°C | 13.9°C | 23.0°C | 9.5°C | 31 mm | 67% | 4.4 m/s | 4.7 |
| 2023 🔥 | 19.8°C | 17.5°C | 15.1°C | 26.7°C | 11.7°C | 17 mm | 67% | 3.7 m/s | 5.2 |
| 2022 | 16.8°C | 15.4°C | 14.1°C | 19.1°C | 11.5°C | 164 mm | 77% | 4.9 m/s | 4.1 |
| 2021 | 17.5°C | 15.3°C | 13.1°C | 21.4°C | 10.8°C | 49 mm | 72% | 4.5 m/s | 4.7 |
| 2020 | 17.8°C | 15.7°C | 13.6°C | 21.3°C | 9.8°C | 16 mm | 75% | 4.1 m/s | 4.5 |
| 2019 | 17.9°C | 15.9°C | 13.9°C | 22.0°C | 11.0°C | 53 mm | 69% | 4.3 m/s | 4.6 |
| 2018 | 17.1°C | 14.9°C | 12.8°C | 23.4°C | 10.7°C | 23 mm | 69% | 3.9 m/s | 4.8 |
| 2017 | 18.3°C | 15.8°C | 13.4°C | 25.6°C | 10.9°C | 2 mm | 62% | 4.4 m/s | 5.3 |
| 2016 | 17.6°C | 16.0°C | 14.3°C | 19.7°C | 12.8°C | 57 mm | 75% | 4.3 m/s | 4.1 |
| 2015 | 16.9°C | 15.3°C | 13.7°C | 21.2°C | 11.3°C | 48 mm | 73% | 4.5 m/s | 4.6 |
| 2014 | 17.2°C | 15.4°C | 13.6°C | 23.1°C | 11.4°C | 43 mm | 74% | 4.2 m/s | 4.9 |
| 2013 | 18.5°C | 16.4°C | 14.3°C | 22.7°C | 10.9°C | 100 mm | 74% | 4.1 m/s | 4.6 |
| 2012 | 17.6°C | 15.4°C | 13.2°C | 22.7°C | 10.2°C | 28 mm | 71% | 3.9 m/s | 4.9 |
| 2011 | 17.6°C | 15.7°C | 13.7°C | 20.9°C | 11.4°C | 49 mm | 71% | 4.6 m/s | 4.5 |
| 2010 | 16.9°C | 15.1°C | 13.3°C | 19.9°C | 10.8°C | 65 mm | 72% | 3.9 m/s | 4.5 |
| 2009 | 18.7°C | 16.3°C | 13.9°C | 24.3°C | 10.4°C | 42 mm | 69% | 4.3 m/s | 4.7 |
| 2008 | 17.5°C | 15.2°C | 12.9°C | 22.8°C | 10.1°C | 46 mm | 70% | 4 m/s | 4.8 |
| 2007 | 16.9°C | 15.1°C | 13.3°C | 21.3°C | 11.6°C | 33 mm | 70% | 4.4 m/s | 4.9 |
| 2006 | 18.4°C | 16.4°C | 14.4°C | 23.4°C | 11.8°C | 71 mm | 72% | 4.5 m/s | 4.9 |
| 2005 | 17.3°C | 15.5°C | 13.7°C | 20.6°C | 12.0°C | 74 mm | 74% | 4.4 m/s | 4.4 |
| 2004 | 17.7°C | 15.7°C | 13.6°C | 22.6°C | 10.5°C | 96 mm | 71% | 3.9 m/s | 4.4 |
| 2003 | 17.6°C | 15.4°C | 13.1°C | 23.2°C | 10.5°C | 16 mm | 66% | 4.7 m/s | 5.1 |
| 2002 | 18.7°C | 16.3°C | 13.8°C | 23.7°C | 10.7°C | 23 mm | 66% | 4.1 m/s | 4.9 |
| 2001 | 18.7°C | 16.8°C | 14.9°C | 22.8°C | 12.8°C | 80 mm | 76% | 4.4 m/s | 4.5 |
| 2000 | 18.7°C | 16.5°C | 14.3°C | 24.9°C | 11.9°C | 68 mm | 70% | 4.3 m/s | 4.6 |
| 1999 | 17.5°C | 15.9°C | 14.3°C | 21.0°C | 11.3°C | 50 mm | 77% | 4.5 m/s | 4.5 |
| 1998 | 19.0°C | 17.2°C | 15.3°C | 23.2°C | 11.6°C | 52 mm | 74% | 4.3 m/s | 4.3 |
| 1997 | 16.3°C | 14.9°C | 13.5°C | 19.4°C | 11.4°C | 178 mm | 76% | 4.5 m/s | 4 |
| 1996 | 16.7°C | 14.4°C | 12.1°C | 20.1°C | 9.7°C | 56 mm | 72% | 4.6 m/s | 4.8 |
| 1995 | 15.7°C | 13.9°C | 12.2°C | 21.4°C | 8.6°C | 152 mm | 75% | 4.3 m/s | 4 |
| 1994 | 16.8°C | 14.4°C | 11.9°C | 21.8°C | 9.7°C | 25 mm | 65% | 4 m/s | 5.2 |
| 1993 | 16.0°C | 14.3°C | 12.6°C | 21.6°C | 10.9°C | 115 mm | 75% | 4.4 m/s | 4.7 |
| 1992 | 15.8°C | 13.8°C | 11.7°C | 18.8°C | 10.2°C | 69 mm | 72% | 4.5 m/s | 4.5 |
| 1991 | 16.1°C | 14.0°C | 11.9°C | 18.7°C | 8.9°C | 25 mm | 73% | 4.1 m/s | 4.8 |
| 1990 | 15.9°C | 14.3°C | 12.6°C | 20.6°C | 10.6°C | 178 mm | 76% | 4.4 m/s | 4.4 |
| 1989 | 16.3°C | 14.2°C | 12.1°C | 19.1°C | 10.0°C | 20 mm | 74% | 4.3 m/s | 5.1 |
| 1988 | 17.5°C | 15.6°C | 13.7°C | 20.4°C | 10.3°C | 84 mm | 75% | 4.1 m/s | 4.6 |
| 1987 | 17.3°C | 14.9°C | 12.5°C | 23.4°C | 8.8°C | 29 mm | 72% | 3.7 m/s | 4.9 |
| 1986 | 16.5°C | 14.6°C | 12.8°C | 21.7°C | 11.0°C | 91 mm | 75% | 4.1 m/s | 4.4 |
| 1985 🌧️ | 16.1°C | 14.5°C | 12.9°C | 21.0°C | 10.4°C | 206 mm | 76% | 4.5 m/s | 4.5 |
| 1984 ❄️ | 15.3°C | 13.5°C | 11.7°C | 17.5°C | 9.5°C | 56 mm | 77% | 4 m/s | 4.4 |
| 1983 | 17.1°C | 14.9°C | 12.6°C | 22.0°C | 9.1°C | 35 mm | 73% | 4 m/s | — |
| 1982 | 16.7°C | 14.6°C | 12.6°C | 20.7°C | 9.5°C | 136 mm | 68% | 4.5 m/s | — |
| 1981 | 18.3°C | 15.7°C | 13.2°C | 24.2°C | 10.9°C | 9 mm | 71% | 3.7 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 17.4°C with lows near 13.4°C (mean 15.4°C), based on 45 years of NASA POWER data.
September averages 67 mm of rainfall in Ulladulla, one of the drier months. The wettest on record was 206 mm in 1985.
The hottest September reached 26.7°C in 2023. The coldest dipped to 8.6°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.6°C. Daytime highs moved from 16.7°C to 18.3°C and overnight lows from 12.6°C to 14.2°C over the same span.
September is one of the cooler months of the year in Ulladulla and one of the drier months, so plan for around 17.4°C daytime highs and 13.4°C at night.
Not quite — September is the 4th coolest month in Ulladulla, averaging 15.4°C.
For September in Ulladulla, pack light layers you can adjust through the day, with typical highs of 17.4°C and lows of 13.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 72% — moderately humid.
Average wind speed in September is 4.3 m/s. The windiest September on record averaged 4.9 m/s (2022).
The wettest September on record was 1985 with 206 mm. On average, September sees 67 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 September, 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 September specifically, along with year-by-year records and how the month has changed over the decades.
