May is one of the cooler months of the year in Wyndham, with average highs near 33.3°C and lows around 19.6°C (mean 26.5°C). It is one of the drier months, averaging 8 mm of rainfall and 47% relative humidity across the period.
May is one of the cooler months of the year in Wyndham. Across 45 years of records, the warmest May in Wyndham was 1988 — when the month averaged 29.3°C — while the coldest was 2011 at 20.4°C. Typical May days reach 33.3°C with nights near 19.6°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Wyndham, averaging 8 mm of rainfall. The wettest May on record was 2010 with 77 mm, while the driest were 2018, 2021 and 2023, among others at 0 mm.
Relative humidity in Wyndham during May averages 47%. The most humid May was 2000 at 77%, and the least humid was 2018 at 31%.
May receives about 5.5 kWh/m²/day of solar energy in Wyndham. The sunniest Mays were 2015, 2021 and 2023, among others at 5.8 kWh/m²/day, and the cloudiest was 2010 at 4.4.
Average wind speed in Wyndham during May is 2.8 m/s. The windiest May was 2018 at 3.7 m/s, while the calmest was 1989 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 26.7°C | 25.4°C | 26.2°C | 26.8°C | -0.4°C |
| Avg High | 34.2°C | 33.6°C | 32.3°C | 32.7°C | 33.7°C | -0.5°C |
| Avg Low | 20.3°C | 19.7°C | 18.5°C | 19.7°C | 19.9°C | -0.4°C |
| Avg Rain | 4 mm | 6 mm | 4 mm | 13 mm | 11 mm | +7 mm |
May temperatures in Wyndham have risen by about 0.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 9.7°C (2011) to a record high of 38.7°C (1987).
Rainfall in May is one of the drier months, averaging 8 mm, with a wettest year of 77 mm.
One of the best times to visit Wyndham
May is one of the best times to visit Wyndham. Expect days averaging 33.3°C and nights around 19.6°C (mean 26.5°C) — cooler than Wyndham's yearly average — with low rainfall (8 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 | 33.2°C | 27.2°C | 21.3°C | 36.5°C | 16.0°C | 45 mm | 47% | 3.3 m/s | 5.2 |
| 2024 | 33.4°C | 26.8°C | 20.2°C | 35.7°C | 13.9°C | 13 mm | 53% | 3.4 m/s | 5.4 |
| 2023 | 32.3°C | 24.8°C | 17.3°C | 36.1°C | 12.2°C | 0 mm | 34% | 3.5 m/s | 5.8 |
| 2022 | 35.8°C | 28.8°C | 21.8°C | 37.8°C | 18.7°C | 1 mm | 40% | 2.6 m/s | 5.4 |
| 2021 | 34.2°C | 26.6°C | 19.1°C | 36.2°C | 13.6°C | 0 mm | 40% | 2.8 m/s | 5.8 |
| 2020 | 33.4°C | 26.6°C | 19.9°C | 36.5°C | 14.7°C | 7 mm | 36% | 3.4 m/s | 5.2 |
| 2019 | 34.6°C | 27.8°C | 21.1°C | 37.8°C | 15.5°C | 5 mm | 35% | 3.4 m/s | 5.4 |
| 2018 | 33.5°C | 26.4°C | 19.4°C | 37.3°C | 15.2°C | 0 mm | 31% | 3.7 m/s | 5.7 |
| 2017 | 32.4°C | 25.3°C | 18.2°C | 35.2°C | 14.3°C | 0 mm | 50% | 3 m/s | 5.6 |
| 2016 | 34.9°C | 28.8°C | 22.8°C | 37.3°C | 17.5°C | 33 mm | 51% | 2.2 m/s | 5 |
| 2015 | 34.6°C | 26.6°C | 18.5°C | 37.8°C | 13.4°C | 0 mm | 31% | 2.8 m/s | 5.8 |
| 2014 | 33.4°C | 27.1°C | 20.9°C | 35.4°C | 16.1°C | 2 mm | 53% | 2.3 m/s | 5.3 |
| 2013 | 33.6°C | 27.8°C | 22.1°C | 37.0°C | 15.0°C | 15 mm | 55% | 2.2 m/s | 5.1 |
| 2012 | 31.0°C | 24.0°C | 17.0°C | 33.5°C | 11.7°C | 1 mm | 50% | 3.3 m/s | 5.5 |
| 2011 ❄️ | 26.4°C | 20.4°C | 14.4°C | 29.2°C | 9.7°C | 0 mm | 75% | 2.7 m/s | 5.7 |
| 2010 🌧️ | 33.0°C | 27.6°C | 22.2°C | 36.3°C | 16.6°C | 77 mm | 60% | 2.5 m/s | 4.4 |
| 2009 | 33.2°C | 26.2°C | 19.3°C | 34.9°C | 15.8°C | 11 mm | 43% | 2.8 m/s | 5.4 |
| 2008 | 32.4°C | 24.1°C | 15.9°C | 34.3°C | 12.8°C | 0 mm | 39% | 2.6 m/s | 5.8 |
| 2007 | 35.0°C | 28.8°C | 22.6°C | 37.5°C | 16.9°C | 8 mm | 53% | 2.5 m/s | 5.2 |
| 2006 | 27.2°C | 21.3°C | 15.3°C | 29.4°C | 9.8°C | 0 mm | 70% | 2.6 m/s | 5.6 |
| 2005 | 34.2°C | 26.5°C | 18.7°C | 36.9°C | 13.1°C | 0 mm | 35% | 2.9 m/s | 5.6 |
| 2004 | 32.5°C | 26.8°C | 21.1°C | 35.6°C | 13.8°C | 20 mm | 63% | 2.5 m/s | 4.9 |
| 2003 | 34.9°C | 27.2°C | 19.5°C | 37.4°C | 14.1°C | 0 mm | 38% | 2.8 m/s | 5.7 |
| 2002 | 35.1°C | 27.4°C | 19.6°C | 36.9°C | 13.3°C | 0 mm | 38% | 2.6 m/s | 5.6 |
| 2001 | 31.7°C | 24.0°C | 16.2°C | 34.8°C | 11.0°C | 1 mm | 50% | 2.7 m/s | 5.6 |
| 2000 | 26.7°C | 21.6°C | 16.6°C | 30.5°C | 10.0°C | 1 mm | 77% | 3.3 m/s | 5.4 |
| 1999 | 32.6°C | 24.5°C | 16.4°C | 34.8°C | 12.2°C | 0 mm | 48% | 2.4 m/s | 5.7 |
| 1998 | 34.3°C | 27.2°C | 20.1°C | 37.2°C | 14.1°C | 6 mm | 39% | 3.1 m/s | 5.3 |
| 1997 | 33.8°C | 27.5°C | 21.1°C | 36.1°C | 16.2°C | 11 mm | 51% | 2.2 m/s | 5.1 |
| 1996 | 32.6°C | 25.3°C | 17.9°C | 36.3°C | 13.1°C | 0 mm | 43% | 3.3 m/s | 5.5 |
| 1995 | 32.2°C | 25.8°C | 19.4°C | 35.4°C | 14.4°C | 15 mm | 52% | 2.8 m/s | 5.5 |
| 1994 | 33.9°C | 26.3°C | 18.6°C | 36.1°C | 13.3°C | 0 mm | 33% | 3.4 m/s | 5.7 |
| 1993 | 33.9°C | 27.8°C | 21.7°C | 36.1°C | 18.7°C | 12 mm | 50% | 3 m/s | 5.4 |
| 1992 | 35.7°C | 29.2°C | 22.6°C | 37.8°C | 17.8°C | 3 mm | 46% | 2.5 m/s | 5.5 |
| 1991 | 33.7°C | 26.1°C | 18.4°C | 36.5°C | 13.8°C | 0 mm | 40% | 2.8 m/s | 5.7 |
| 1990 | 33.7°C | 27.1°C | 20.6°C | 38.5°C | 12.2°C | 16 mm | 47% | 2.8 m/s | 5.6 |
| 1989 | 33.6°C | 26.9°C | 20.2°C | 35.0°C | 16.9°C | 12 mm | 53% | 2.1 m/s | 5.7 |
| 1988 🔥 | 36.2°C | 29.3°C | 22.3°C | 38.5°C | 19.0°C | 14 mm | 48% | 2.4 m/s | 5.4 |
| 1987 | 34.8°C | 28.1°C | 21.5°C | 38.7°C | 13.5°C | 3 mm | 41% | 2.8 m/s | 5.6 |
| 1986 | 35.7°C | 28.3°C | 20.9°C | 37.8°C | 17.3°C | 1 mm | 43% | 2.5 m/s | 5.7 |
| 1985 | 34.6°C | 27.5°C | 20.4°C | 37.0°C | 16.9°C | 1 mm | 44% | 2.8 m/s | 5.8 |
| 1984 | 34.2°C | 27.6°C | 20.9°C | 37.0°C | 18.1°C | 0 mm | 52% | 2.4 m/s | 5.6 |
| 1983 | 31.9°C | 24.9°C | 17.9°C | 34.1°C | 13.4°C | 0 mm | 52% | 3.2 m/s | — |
| 1982 | 32.9°C | 25.1°C | 17.4°C | 34.4°C | 14.4°C | 0 mm | 46% | 3 m/s | — |
| 1981 | 34.3°C | 27.5°C | 20.8°C | 36.5°C | 16.7°C | 5 mm | 42% | 2.7 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 33.3°C with lows near 19.6°C (mean 26.5°C), based on 45 years of NASA POWER data.
May averages 8 mm of rainfall in Wyndham, one of the drier months. The wettest on record was 77 mm in 2010.
The hottest May reached 38.7°C in 1987. The coldest dipped to 9.7°C in 2011.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.3°C. Daytime highs moved from 33.6°C to 33.8°C and overnight lows from 19.5°C to 19.9°C over the same span.
May is one of the cooler months of the year in Wyndham and one of the drier months, so plan for around 33.3°C daytime highs and 19.6°C at night.
Not quite — May is the 4th coolest month in Wyndham, averaging 26.5°C.
For May in Wyndham, pack light, breathable clothing and sun protection, with typical highs of 33.3°C and lows of 19.6°C.
Relative humidity in May averages 47% — relatively dry.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.7 m/s (2018).
The wettest May on record was 2010 with 77 mm. On average, May sees 8 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 Wyndham 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.
