May is one of the cooler months of the year in Dubbo, with average highs near 18.9°C and lows around 7.3°C (mean 13.1°C). It is about average for rainfall, averaging 40 mm of rainfall and 71% relative humidity across the period.
May is one of the cooler months of the year in Dubbo. Across 45 years of records, the warmest May in Dubbo was 2007 — when the month averaged 14.8°C — while the coldest was 2020 at 11.2°C. Typical May days reach 18.9°C with nights near 7.3°C. The long-term May temperature trend is broadly flat.
May is about average for rainfall in Dubbo, averaging 40 mm of rainfall. The wettest May on record was 1983 with 141 mm, while the driest was 2023 at 2 mm.
Relative humidity in Dubbo during May averages 71%. The most humid May was 1989 at 86%, and the least humid was 2005 at 60%.
May receives about 3.4 kWh/m²/day of solar energy in Dubbo. The sunniest May was 1994 at 3.8 kWh/m²/day, and the cloudiest was 1989 at 2.9.
Average wind speed in Dubbo during May is 2.4 m/s. The windiest May was 2009 at 2.9 m/s, while the calmest was 2001 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.1°C | 13.4°C | 13.1°C | 13.0°C | 12.8°C | -0.3°C |
| Avg High | 18.8°C | 19.0°C | 19.2°C | 19.0°C | 18.3°C | -0.5°C |
| Avg Low | 7.4°C | 7.7°C | 7.1°C | 7.1°C | 7.2°C | -0.2°C |
| Avg Rain | 54 mm | 50 mm | 30 mm | 33 mm | 28 mm | -26 mm |
May temperatures in Dubbo have stayed relatively stable across the record.
May has ranged from a record low of -2.1°C (1987) to a record high of 26.9°C (2013).
Rainfall in May is about average for rainfall, averaging 40 mm, with a wettest year of 141 mm.
A quieter season to visit Dubbo
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Dubbo. That said, May — with days averaging 18.9°C and nights around 7.3°C (mean 13.1°C) and moderate rainfall (40 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 | 20.0°C | 14.6°C | 9.1°C | 23.4°C | 4.3°C | 49 mm | 74% | 2.5 m/s | 3.3 |
| 2024 | 19.2°C | 13.7°C | 8.2°C | 21.6°C | 1.7°C | 38 mm | 75% | 2.6 m/s | 3.3 |
| 2023 | 17.7°C | 11.4°C | 5.1°C | 22.3°C | 0.6°C | 2 mm | 68% | 2.3 m/s | 3.3 |
| 2022 | 17.9°C | 12.9°C | 7.9°C | 23.0°C | 2.1°C | 53 mm | 81% | 2.7 m/s | 3 |
| 2021 | 18.7°C | 12.8°C | 6.9°C | 23.8°C | -0.3°C | 12 mm | 71% | 2.2 m/s | 3.5 |
| 2020 ❄️ | 16.6°C | 11.2°C | 5.8°C | 21.6°C | 1.3°C | 13 mm | 81% | 2.7 m/s | 3.6 |
| 2019 | 19.3°C | 13.3°C | 7.4°C | 24.7°C | -0.6°C | 19 mm | 66% | 2.3 m/s | 3.3 |
| 2018 | 20.2°C | 13.6°C | 7.1°C | 26.1°C | 2.2°C | 11 mm | 62% | 2.6 m/s | 3.6 |
| 2017 | 19.6°C | 13.5°C | 7.4°C | 23.0°C | 0.8°C | 10 mm | 69% | 2.3 m/s | 3.6 |
| 2016 | 19.9°C | 13.7°C | 7.6°C | 26.5°C | -0.7°C | 32 mm | 66% | 2.5 m/s | 3.3 |
| 2015 | 17.9°C | 12.6°C | 7.4°C | 24.7°C | 0.5°C | 46 mm | 76% | 2.5 m/s | 3.1 |
| 2014 | 19.4°C | 13.8°C | 8.2°C | 25.0°C | 2.2°C | 37 mm | 73% | 2.2 m/s | 3.3 |
| 2013 | 19.4°C | 13.3°C | 7.3°C | 26.9°C | 2.6°C | 21 mm | 68% | 2.5 m/s | 3.4 |
| 2012 | 18.4°C | 12.0°C | 5.6°C | 24.8°C | 1.4°C | 51 mm | 67% | 2.2 m/s | 3.6 |
| 2011 | 17.4°C | 11.6°C | 5.7°C | 22.8°C | -0.7°C | 51 mm | 72% | 2.3 m/s | 3.2 |
| 2010 | 18.3°C | 12.7°C | 7.1°C | 24.2°C | 1.0°C | 56 mm | 74% | 2.2 m/s | 3.3 |
| 2009 | 19.3°C | 13.7°C | 8.1°C | 22.3°C | 3.8°C | 11 mm | 70% | 2.9 m/s | 3.3 |
| 2008 | 20.0°C | 13.4°C | 6.9°C | 23.6°C | 3.1°C | 10 mm | 66% | 2.2 m/s | 3.5 |
| 2007 🔥 | 20.8°C | 14.8°C | 8.8°C | 26.3°C | 1.5°C | 68 mm | 67% | 2.2 m/s | 3.4 |
| 2006 | 18.9°C | 12.1°C | 5.3°C | 22.4°C | 1.1°C | 2 mm | 62% | 2.1 m/s | 3.7 |
| 2005 | 21.1°C | 14.5°C | 7.9°C | 26.5°C | 2.2°C | 3 mm | 60% | 2.1 m/s | 3.7 |
| 2004 | 18.9°C | 12.3°C | 5.7°C | 22.8°C | -1.5°C | 51 mm | 61% | 2.3 m/s | 3.6 |
| 2003 | 19.9°C | 13.8°C | 7.8°C | 22.7°C | 1.4°C | 8 mm | 70% | 2.3 m/s | 3.4 |
| 2002 | 18.6°C | 12.9°C | 7.3°C | 25.1°C | 2.2°C | 33 mm | 70% | 2.2 m/s | 3.1 |
| 2001 | 18.1°C | 12.2°C | 6.4°C | 23.3°C | 1.2°C | 22 mm | 73% | 1.9 m/s | 3.4 |
| 2000 | 16.5°C | 11.6°C | 6.7°C | 25.4°C | 1.3°C | 90 mm | 81% | 2.6 m/s | 3.2 |
| 1999 | 20.3°C | 14.1°C | 7.9°C | 22.9°C | -0.1°C | 10 mm | 70% | 2.2 m/s | 3.4 |
| 1998 | 17.8°C | 12.5°C | 7.3°C | 22.2°C | 0.5°C | 58 mm | 75% | 2.4 m/s | 3 |
| 1997 | 19.5°C | 13.9°C | 8.2°C | 26.0°C | 0.8°C | 51 mm | 70% | 2.3 m/s | 3.1 |
| 1996 | 19.4°C | 13.8°C | 8.2°C | 23.7°C | 2.5°C | 77 mm | 75% | 2.6 m/s | 3.2 |
| 1995 | 18.1°C | 13.1°C | 8.2°C | 24.1°C | 2.3°C | 104 mm | 78% | 2.7 m/s | 3 |
| 1994 | 19.5°C | 12.9°C | 6.3°C | 26.2°C | 0.5°C | 10 mm | 62% | 2.3 m/s | 3.8 |
| 1993 | 19.5°C | 13.6°C | 7.6°C | 24.5°C | 2.2°C | 59 mm | 66% | 2 m/s | 3.4 |
| 1992 | 18.8°C | 13.1°C | 7.5°C | 24.7°C | 1.9°C | 19 mm | 71% | 2.1 m/s | 3.4 |
| 1991 | 20.0°C | 14.3°C | 8.5°C | 24.8°C | 2.9°C | 52 mm | 68% | 2.1 m/s | 3.3 |
| 1990 | 17.3°C | 12.4°C | 7.5°C | 22.0°C | 1.7°C | 59 mm | 86% | 2.2 m/s | 3.3 |
| 1989 | 18.0°C | 13.8°C | 9.6°C | 21.1°C | 2.1°C | 99 mm | 86% | 2.6 m/s | 2.9 |
| 1988 | 19.0°C | 13.5°C | 8.0°C | 24.9°C | 3.8°C | 33 mm | 77% | 2.2 m/s | 3.1 |
| 1987 | 18.2°C | 12.3°C | 6.4°C | 24.5°C | -2.1°C | 52 mm | 73% | 2.6 m/s | 3.4 |
| 1986 | 20.2°C | 13.9°C | 7.6°C | 23.8°C | 2.7°C | 27 mm | 67% | 2.4 m/s | 3.5 |
| 1985 | 19.5°C | 13.5°C | 7.5°C | 24.7°C | 2.2°C | 32 mm | 71% | 2.6 m/s | 3.6 |
| 1984 | 18.9°C | 12.8°C | 6.7°C | 24.4°C | 2.1°C | 8 mm | 68% | 2.2 m/s | 3.6 |
| 1983 🌧️ | 17.9°C | 12.9°C | 8.0°C | 22.0°C | 2.5°C | 141 mm | 80% | 2.8 m/s | — |
| 1982 | 18.8°C | 12.3°C | 5.7°C | 23.8°C | -1.4°C | 14 mm | 62% | 2.2 m/s | — |
| 1981 | 18.9°C | 13.2°C | 7.5°C | 24.0°C | 1.6°C | 81 mm | 70% | 2.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 18.9°C with lows near 7.3°C (mean 13.1°C), based on 45 years of NASA POWER data.
May averages 40 mm of rainfall in Dubbo, about average for rainfall. The wettest on record was 141 mm in 1983.
The hottest May reached 26.9°C in 2013. The coldest dipped to -2.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 7.1°C to 7.4°C while daytime highs eased from 18.8°C to 18.7°C, narrowing the gap between day and night.
May is one of the cooler months of the year in Dubbo and about average for rainfall, so plan for around 18.9°C daytime highs and 7.3°C at night.
Not quite — May is the 4th coolest month in Dubbo, averaging 13.1°C.
For May in Dubbo, pack warm layers and a jacket for chilly mornings, with typical highs of 18.9°C and lows of 7.3°C.
Relative humidity in May averages 71% — moderately humid.
Average wind speed in May is 2.4 m/s. The windiest May on record averaged 2.9 m/s (2009).
The wettest May on record was 1983 with 141 mm. On average, May sees 40 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 Dubbo behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
