May is one of the cooler months of the year in Inverell, with average highs near 18°C and lows around 6.3°C (mean 12.2°C). It is one of the drier months, averaging 44 mm of rainfall and 73% relative humidity across the period.
May is one of the cooler months of the year in Inverell. Across 45 years of records, the warmest Mays in Inverell were 2007 and 2016 — when the month averaged 13.7°C — while the coldest was 2011 at 10.4°C. Typical May days reach 18°C with nights near 6.3°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Inverell, averaging 44 mm of rainfall. The wettest May on record was 1983 with 167 mm, while the driest was 2006 at 0 mm.
Relative humidity in Inverell during May averages 73%. The most humid May was 1983 at 86%, and the least humid was 1994 at 61%.
May receives about 3.6 kWh/m²/day of solar energy in Inverell. The sunniest May was 2006 at 4.2 kWh/m²/day, and the cloudiest was 2022 at 2.9.
Average wind speed in Inverell during May is 1.7 m/s. The windiest Mays were 1996, 2009 and 2022, among others at 2.1 m/s, while the calmest were 2007, 2017 and 2021, among others at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.1°C | 12.5°C | 12.1°C | 12.2°C | 12.0°C | -0.1°C |
| Avg High | 17.7°C | 18.1°C | 18.2°C | 18.3°C | 17.6°C | -0.1°C |
| Avg Low | 6.4°C | 6.9°C | 6.0°C | 6.1°C | 6.3°C | -0.1°C |
| Avg Rain | 59 mm | 58 mm | 26 mm | 38 mm | 36 mm | -23 mm |
May temperatures in Inverell have risen by about 0.5°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -3.8°C (2019) to a record high of 25.7°C (2019).
Rainfall in May is one of the drier months, averaging 44 mm, with a wettest year of 167 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 quieter season to visit Inverell
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Inverell. That said, May — with days averaging 18°C and nights around 6.3°C (mean 12.2°C) and moderate rainfall (44 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 | 18.6°C | 13.3°C | 8.0°C | 21.9°C | 1.9°C | 41 mm | 80% | 1.8 m/s | 3.4 |
| 2024 | 18.6°C | 13.0°C | 7.3°C | 21.0°C | 2.3°C | 26 mm | 77% | 1.8 m/s | 3.6 |
| 2023 | 17.3°C | 10.6°C | 3.9°C | 20.5°C | -1.3°C | 17 mm | 67% | 1.7 m/s | 4.1 |
| 2022 | 18.3°C | 13.3°C | 8.3°C | 23.9°C | 3.6°C | 52 mm | 77% | 2.1 m/s | 2.9 |
| 2021 | 16.4°C | 10.9°C | 5.4°C | 19.7°C | -1.4°C | 47 mm | 81% | 1.5 m/s | 3.7 |
| 2020 | 16.3°C | 10.6°C | 5.0°C | 20.0°C | 0.8°C | 34 mm | 79% | 1.9 m/s | 3.7 |
| 2019 | 19.7°C | 13.0°C | 6.3°C | 25.7°C | -3.8°C | 7 mm | 64% | 1.7 m/s | 3.6 |
| 2018 | 19.3°C | 12.5°C | 5.7°C | 23.7°C | 1.4°C | 3 mm | 65% | 1.7 m/s | 4 |
| 2017 | 17.8°C | 12.3°C | 6.9°C | 19.9°C | 0.1°C | 45 mm | 79% | 1.5 m/s | 3.6 |
| 2016 | 20.3°C | 13.7°C | 7.2°C | 24.5°C | -0.1°C | 66 mm | 64% | 1.7 m/s | 3.9 |
| 2015 | 17.0°C | 11.5°C | 6.1°C | 21.7°C | -2.7°C | 52 mm | 80% | 1.9 m/s | 3.5 |
| 2014 | 18.3°C | 12.5°C | 6.7°C | 23.1°C | 0.3°C | 19 mm | 74% | 1.6 m/s | 3.4 |
| 2013 | 18.1°C | 12.0°C | 6.0°C | 23.3°C | 0.7°C | 25 mm | 71% | 1.8 m/s | 3.6 |
| 2012 | 18.0°C | 11.6°C | 5.2°C | 23.1°C | 1.0°C | 34 mm | 67% | 1.6 m/s | 3.9 |
| 2011 ❄️ | 16.1°C | 10.4°C | 4.7°C | 21.3°C | -1.7°C | 63 mm | 73% | 1.7 m/s | 3.6 |
| 2010 | 18.0°C | 12.1°C | 6.3°C | 24.7°C | 0.9°C | 68 mm | 71% | 1.6 m/s | 3.3 |
| 2009 | 17.8°C | 12.5°C | 7.2°C | 20.7°C | 2.4°C | 51 mm | 73% | 2.1 m/s | 3.4 |
| 2008 | 18.6°C | 12.2°C | 5.8°C | 22.6°C | 1.4°C | 15 mm | 64% | 1.7 m/s | 3.8 |
| 2007 🔥 | 19.9°C | 13.7°C | 7.5°C | 24.6°C | 1.7°C | 37 mm | 71% | 1.5 m/s | 3.8 |
| 2006 | 17.7°C | 11.1°C | 4.5°C | 20.6°C | -0.5°C | 0 mm | 62% | 1.5 m/s | 4.2 |
| 2005 | 19.2°C | 12.8°C | 6.4°C | 24.3°C | -0.1°C | 22 mm | 65% | 1.8 m/s | 3.8 |
| 2004 | 18.6°C | 11.8°C | 5.1°C | 22.1°C | -2.0°C | 19 mm | 61% | 1.6 m/s | 4 |
| 2003 | 17.7°C | 12.1°C | 6.4°C | 22.6°C | 1.0°C | 11 mm | 74% | 1.9 m/s | 3.7 |
| 2002 | 18.3°C | 11.8°C | 5.3°C | 22.6°C | 0.8°C | 7 mm | 68% | 1.6 m/s | 3.6 |
| 2001 | 16.3°C | 11.0°C | 5.7°C | 20.2°C | 0.4°C | 42 mm | 75% | 1.8 m/s | 3.6 |
| 2000 | 18.2°C | 12.1°C | 6.0°C | 24.0°C | -1.7°C | 52 mm | 74% | 2 m/s | 3.6 |
| 1999 | 19.4°C | 13.3°C | 7.2°C | 21.3°C | 4.3°C | 11 mm | 76% | 1.7 m/s | 3.4 |
| 1998 | 17.6°C | 12.2°C | 6.8°C | 24.2°C | -0.5°C | 74 mm | 74% | 1.6 m/s | 3.4 |
| 1997 | 17.7°C | 12.5°C | 7.2°C | 23.4°C | 2.2°C | 85 mm | 79% | 1.7 m/s | 3.3 |
| 1996 | 17.7°C | 12.4°C | 7.2°C | 23.1°C | 1.4°C | 102 mm | 78% | 2.1 m/s | 3.4 |
| 1995 | 17.9°C | 12.4°C | 6.8°C | 23.6°C | -0.9°C | 64 mm | 77% | 2 m/s | 3.4 |
| 1994 | 18.5°C | 12.0°C | 5.5°C | 22.8°C | -0.9°C | 8 mm | 61% | 1.7 m/s | 4 |
| 1993 | 19.3°C | 13.0°C | 6.7°C | 22.9°C | 2.4°C | 31 mm | 69% | 1.6 m/s | 3.7 |
| 1992 | 17.2°C | 12.0°C | 6.9°C | 21.7°C | 1.3°C | 41 mm | 74% | 1.5 m/s | 3.3 |
| 1991 | 18.6°C | 13.1°C | 7.6°C | 22.9°C | 4.1°C | 74 mm | 77% | 1.5 m/s | 3.5 |
| 1990 | 17.0°C | 12.1°C | 7.1°C | 20.7°C | 0.2°C | 90 mm | 81% | 1.7 m/s | 3.5 |
| 1989 | 18.0°C | 13.2°C | 8.4°C | 21.0°C | 0.7°C | 43 mm | 82% | 1.9 m/s | 3.2 |
| 1988 | 17.0°C | 11.8°C | 6.7°C | 22.1°C | 3.0°C | 34 mm | 82% | 1.6 m/s | 3.6 |
| 1987 | 17.4°C | 11.8°C | 6.2°C | 21.9°C | -2.9°C | 66 mm | 75% | 1.8 m/s | 3.3 |
| 1986 | 19.1°C | 13.1°C | 7.2°C | 23.0°C | 1.3°C | 58 mm | 71% | 1.7 m/s | 3.7 |
| 1985 | 17.7°C | 11.8°C | 5.8°C | 23.3°C | 0.1°C | 29 mm | 76% | 2 m/s | 3.6 |
| 1984 | 17.5°C | 11.2°C | 4.8°C | 23.3°C | 1.4°C | 10 mm | 70% | 1.5 m/s | 3.8 |
| 1983 🌧️ | 16.1°C | 11.4°C | 6.7°C | 18.9°C | 0.8°C | 167 mm | 86% | 1.9 m/s | — |
| 1982 | 18.6°C | 12.0°C | 5.5°C | 20.9°C | -1.6°C | 18 mm | 65% | 1.5 m/s | — |
| 1981 | 18.2°C | 12.3°C | 6.5°C | 22.4°C | 1.6°C | 109 mm | 70% | 2.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 18°C with lows near 6.3°C (mean 12.2°C), based on 45 years of NASA POWER data.
May averages 44 mm of rainfall in Inverell, one of the drier months. The wettest on record was 167 mm in 1983.
The hottest May reached 25.7°C in 2019. The coldest dipped to -3.8°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.5°C. Daytime highs moved from 17.6°C to 17.8°C and overnight lows from 5.9°C to 6.6°C over the same span.
May is one of the cooler months of the year in Inverell and one of the drier months, so plan for around 18°C daytime highs and 6.3°C at night.
Not quite — May is the 4th coolest month in Inverell, averaging 12.2°C.
For May in Inverell, pack warm layers and a jacket for chilly mornings, with typical highs of 18°C and lows of 6.3°C.
Relative humidity in May averages 73% — moderately humid.
Average wind speed in May is 1.7 m/s. The windiest May on record averaged 2.1 m/s (1981).
The wettest May on record was 1983 with 167 mm. On average, May sees 44 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 Inverell 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.
