May is one of the cooler months of the year in Goondiwindi, with average highs near 23.3°C and lows around 10°C (mean 16.7°C). It is one of the drier months, averaging 36 mm of rainfall and 66% relative humidity across the period.
May is one of the cooler months of the year in Goondiwindi. Across 45 years of records, the warmest May in Goondiwindi was 2007 — when the month averaged 18.7°C — while the coldest was 2011 at 14.6°C. Typical May days reach 23.3°C with nights near 10°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Goondiwindi, averaging 36 mm of rainfall. The wettest May on record was 1983 with 166 mm, while the driest was 2006 at 1 mm.
Relative humidity in Goondiwindi during May averages 66%. The most humid May was 1983 at 81%, and the least humid was 2006 at 49%.
May receives about 3.8 kWh/m²/day of solar energy in Goondiwindi. The sunniest Mays were 1994, 2006 and 2023 at 4.3 kWh/m²/day, and the cloudiest was 2022 at 3.
Average wind speed in Goondiwindi during May is 2.2 m/s. The windiest Mays were 1983 and 1995 at 2.7 m/s, while the calmest was 2006 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.5°C | 17.0°C | 16.6°C | 16.6°C | 16.4°C | -0.1°C |
| Avg High | 23.0°C | 23.4°C | 23.7°C | 23.4°C | 22.9°C | -0.1°C |
| Avg Low | 10.1°C | 10.5°C | 9.6°C | 9.8°C | 9.9°C | -0.2°C |
| Avg Rain | 53 mm | 53 mm | 18 mm | 25 mm | 32 mm | -21 mm |
May temperatures in Goondiwindi have risen by about 0.4°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 0°C (1987) to a record high of 31.9°C (2007).
Rainfall in May is one of the drier months, averaging 36 mm, with a wettest year of 166 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.1°C per decade while lows fell 0.1°C per decade, widening the gap between day and night.
A good time to visit Goondiwindi
May is a good time to visit Goondiwindi, with days averaging 23.3°C and nights around 10°C (mean 16.7°C, cooler than Goondiwindi's yearly average) and moderate rainfall. October and April are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 23.7°C | 17.5°C | 11.3°C | 29.7°C | 5.9°C | 46 mm | 72% | 2.1 m/s | 3.6 |
| 2024 | 24.4°C | 17.6°C | 10.9°C | 27.3°C | 3.8°C | 13 mm | 69% | 2.3 m/s | 3.7 |
| 2023 | 22.6°C | 15.0°C | 7.4°C | 26.9°C | 2.4°C | 20 mm | 58% | 2.3 m/s | 4.3 |
| 2022 | 22.9°C | 17.6°C | 12.3°C | 28.6°C | 6.8°C | 73 mm | 74% | 2.6 m/s | 3 |
| 2021 | 22.3°C | 15.5°C | 8.7°C | 26.5°C | 1.5°C | 28 mm | 72% | 2.1 m/s | 3.9 |
| 2020 | 21.7°C | 15.2°C | 8.6°C | 25.9°C | 3.2°C | 13 mm | 71% | 2.4 m/s | 3.8 |
| 2019 | 24.6°C | 17.5°C | 10.5°C | 29.6°C | 1.2°C | 5 mm | 55% | 2.3 m/s | 3.8 |
| 2018 | 24.4°C | 17.1°C | 9.8°C | 29.0°C | 4.4°C | 3 mm | 55% | 2.3 m/s | 4.2 |
| 2017 | 24.2°C | 17.6°C | 11.0°C | 27.5°C | 2.8°C | 32 mm | 69% | 2 m/s | 3.9 |
| 2016 | 25.7°C | 18.4°C | 11.0°C | 29.4°C | 4.1°C | 30 mm | 56% | 2.3 m/s | 3.9 |
| 2015 | 22.7°C | 16.1°C | 9.4°C | 28.1°C | 1.8°C | 43 mm | 73% | 2.3 m/s | 3.7 |
| 2014 | 23.3°C | 16.8°C | 10.4°C | 27.3°C | 3.3°C | 15 mm | 69% | 2.2 m/s | 3.8 |
| 2013 | 22.6°C | 16.2°C | 9.8°C | 28.9°C | 5.3°C | 21 mm | 68% | 2.3 m/s | 3.8 |
| 2012 | 22.8°C | 15.4°C | 8.0°C | 27.5°C | 3.4°C | 35 mm | 64% | 2.1 m/s | 4.1 |
| 2011 ❄️ | 21.3°C | 14.6°C | 8.0°C | 27.0°C | 1.2°C | 32 mm | 68% | 2.1 m/s | 3.7 |
| 2010 | 22.9°C | 16.3°C | 9.8°C | 28.0°C | 2.9°C | 29 mm | 66% | 2.2 m/s | 3.6 |
| 2009 | 23.4°C | 17.1°C | 10.8°C | 26.7°C | 7.1°C | 43 mm | 65% | 2.2 m/s | 3.7 |
| 2008 | 24.4°C | 16.9°C | 9.4°C | 27.2°C | 4.2°C | 9 mm | 52% | 2.1 m/s | 4.1 |
| 2007 🔥 | 25.6°C | 18.7°C | 11.7°C | 31.9°C | 4.5°C | 16 mm | 61% | 2.2 m/s | 3.9 |
| 2006 | 23.4°C | 15.8°C | 8.2°C | 27.7°C | 3.0°C | 1 mm | 49% | 1.9 m/s | 4.3 |
| 2005 | 23.8°C | 16.8°C | 9.8°C | 28.3°C | 3.6°C | 37 mm | 60% | 2.1 m/s | 4.1 |
| 2004 | 23.1°C | 15.7°C | 8.3°C | 26.7°C | 2.2°C | 16 mm | 62% | 2.1 m/s | 4 |
| 2003 | 23.9°C | 16.9°C | 10.0°C | 29.6°C | 4.8°C | 2 mm | 65% | 2.3 m/s | 4 |
| 2002 | 23.5°C | 16.3°C | 9.1°C | 27.6°C | 3.0°C | 5 mm | 57% | 2.1 m/s | 4 |
| 2001 | 22.5°C | 15.6°C | 8.7°C | 27.6°C | 4.1°C | 16 mm | 66% | 2.3 m/s | 4 |
| 2000 | 23.1°C | 16.5°C | 9.8°C | 30.2°C | 1.2°C | 32 mm | 68% | 2.5 m/s | 3.8 |
| 1999 | 24.6°C | 17.8°C | 11.0°C | 26.6°C | 7.6°C | 18 mm | 69% | 2.2 m/s | 3.6 |
| 1998 | 22.3°C | 16.0°C | 9.7°C | 29.4°C | 3.2°C | 98 mm | 72% | 2.1 m/s | 3.6 |
| 1997 | 22.6°C | 16.6°C | 10.7°C | 28.1°C | 2.5°C | 65 mm | 71% | 2.1 m/s | 3.5 |
| 1996 | 22.4°C | 16.6°C | 10.8°C | 27.6°C | 4.3°C | 94 mm | 74% | 2.2 m/s | 3.6 |
| 1995 | 23.4°C | 16.9°C | 10.5°C | 28.6°C | 2.8°C | 43 mm | 68% | 2.7 m/s | 3.6 |
| 1994 | 24.1°C | 16.5°C | 8.8°C | 29.3°C | 4.0°C | 8 mm | 50% | 2 m/s | 4.3 |
| 1993 | 24.7°C | 17.9°C | 11.1°C | 28.7°C | 5.4°C | 15 mm | 60% | 2.2 m/s | 4 |
| 1992 | 22.7°C | 16.4°C | 10.1°C | 27.2°C | 4.1°C | 38 mm | 67% | 2 m/s | 3.5 |
| 1991 | 24.6°C | 18.5°C | 12.4°C | 30.2°C | 7.8°C | 82 mm | 63% | 2.3 m/s | 3.7 |
| 1990 | 22.7°C | 16.5°C | 10.3°C | 26.7°C | 4.9°C | 68 mm | 75% | 2.1 m/s | 3.8 |
| 1989 | 23.3°C | 17.9°C | 12.6°C | 27.1°C | 4.4°C | 54 mm | 78% | 2.4 m/s | 3.5 |
| 1988 | 22.2°C | 16.2°C | 10.1°C | 26.8°C | 5.8°C | 16 mm | 77% | 2.1 m/s | 3.8 |
| 1987 | 22.5°C | 16.2°C | 10.0°C | 27.1°C | 0.0°C | 60 mm | 69% | 2.2 m/s | 3.6 |
| 1986 | 24.1°C | 17.4°C | 10.8°C | 28.3°C | 4.8°C | 47 mm | 67% | 2.3 m/s | 3.9 |
| 1985 | 23.6°C | 16.7°C | 9.7°C | 29.0°C | 4.9°C | 21 mm | 67% | 2.4 m/s | 3.9 |
| 1984 | 22.5°C | 15.3°C | 8.2°C | 25.8°C | 3.2°C | 7 mm | 68% | 2 m/s | 4 |
| 1983 🌧️ | 21.5°C | 16.1°C | 10.7°C | 24.2°C | 5.3°C | 166 mm | 81% | 2.7 m/s | — |
| 1982 | 23.5°C | 16.2°C | 8.9°C | 27.2°C | 2.9°C | 22 mm | 62% | 2.1 m/s | — |
| 1981 | 23.6°C | 16.9°C | 10.2°C | 28.0°C | 4.7°C | 87 mm | 60% | 2.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 23.3°C with lows near 10°C (mean 16.7°C), based on 45 years of NASA POWER data.
May averages 36 mm of rainfall in Goondiwindi, one of the drier months. The wettest on record was 166 mm in 1983.
The hottest May reached 31.9°C in 2007. The coldest dipped to 0°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.4°C. Daytime highs moved from 22.9°C to 23.2°C and overnight lows from 9.5°C to 10.1°C over the same span.
May is one of the cooler months of the year in Goondiwindi and one of the drier months, so plan for around 23.3°C daytime highs and 10°C at night.
Not quite — May is the 4th coolest month in Goondiwindi, averaging 16.7°C.
For May in Goondiwindi, pack light layers you can adjust through the day, with typical highs of 23.3°C and lows of 10°C.
Relative humidity in May averages 66% — moderately humid.
Average wind speed in May is 2.2 m/s. The windiest May on record averaged 2.7 m/s (1983).
The wettest May on record was 1983 with 166 mm. On average, May sees 36 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 Goondiwindi 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.
