May is one of the cooler months of the year in Winton, with average highs near 27.9°C and lows around 14.2°C (mean 21°C). It is one of the drier months, averaging 17 mm of rainfall and 48% relative humidity across the period.
May is one of the cooler months of the year in Winton. Across 45 years of records, the warmest May in Winton was 2007 — when the month averaged 24.7°C — while the coldest was 2011 at 18°C. Typical May days reach 27.9°C with nights near 14.2°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Winton, averaging 17 mm of rainfall. The wettest May on record was 1990 with 88 mm, while the driest were 2002, 2014 and 2021, among others at 0 mm.
Relative humidity in Winton during May averages 48%. The most humid May was 1990 at 74%, and the least humid was 2001 at 30%.
May receives about 4.6 kWh/m²/day of solar energy in Winton. The sunniest Mays were 2015, 2021 and 2023, among others at 5 kWh/m²/day, and the cloudiest was 1992 at 4.1.
Average wind speed in Winton during May is 3.1 m/s. The windiest May was 2024 at 3.7 m/s, while the calmest were 2009 and 2010 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.3°C | 21.1°C | 20.8°C | 21.1°C | 21.1°C | -0.2°C |
| Avg High | 28.0°C | 27.7°C | 27.9°C | 28.0°C | 27.9°C | -0.1°C |
| Avg Low | 14.5°C | 14.4°C | 13.7°C | 14.3°C | 14.4°C | -0.1°C |
| Avg Rain | 31 mm | 22 mm | 10 mm | 10 mm | 9 mm | -23 mm |
May temperatures in Winton have risen by about 0.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 3.7°C (2000) to a record high of 37.7°C (2007).
Rainfall in May is one of the drier months, averaging 17 mm, with a wettest year of 88 mm.
One of the best times to visit Winton
May is one of the best times to visit Winton. Expect days averaging 27.9°C and nights around 14.2°C (mean 21°C) — cooler than Winton's yearly average — with low rainfall (17 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 | 27.3°C | 21.0°C | 14.7°C | 33.5°C | 8.3°C | 4 mm | 58% | 3.6 m/s | 4.4 |
| 2024 | 29.5°C | 23.0°C | 16.5°C | 31.8°C | 9.3°C | 3 mm | 45% | 3.7 m/s | 4.6 |
| 2023 | 27.3°C | 19.7°C | 12.0°C | 31.8°C | 6.7°C | 0 mm | 36% | 3.5 m/s | 5 |
| 2022 | 27.3°C | 21.2°C | 15.2°C | 31.0°C | 7.8°C | 32 mm | 66% | 3.1 m/s | 4.3 |
| 2021 | 28.7°C | 21.4°C | 14.1°C | 32.4°C | 8.4°C | 0 mm | 37% | 3.4 m/s | 5 |
| 2020 | 27.1°C | 20.3°C | 13.6°C | 32.5°C | 7.1°C | 12 mm | 42% | 3.2 m/s | 4.6 |
| 2019 | 28.1°C | 21.2°C | 14.4°C | 32.9°C | 7.9°C | 1 mm | 45% | 3.6 m/s | 4.7 |
| 2018 | 28.3°C | 21.5°C | 14.6°C | 33.5°C | 9.0°C | 0 mm | 38% | 3.6 m/s | 4.9 |
| 2017 | 30.2°C | 23.4°C | 16.7°C | 32.9°C | 11.5°C | 0 mm | 41% | 3.1 m/s | 4.7 |
| 2016 | 31.0°C | 24.3°C | 17.6°C | 37.0°C | 11.0°C | 13 mm | 39% | 3 m/s | 4.3 |
| 2015 | 28.5°C | 21.1°C | 13.7°C | 34.7°C | 6.9°C | 2 mm | 42% | 3.5 m/s | 5 |
| 2014 | 28.7°C | 22.3°C | 15.9°C | 32.6°C | 9.3°C | 0 mm | 43% | 3.1 m/s | 4.7 |
| 2013 | 27.4°C | 20.8°C | 14.2°C | 32.2°C | 7.7°C | 9 mm | 52% | 3.4 m/s | 4.4 |
| 2012 | 25.8°C | 18.8°C | 11.8°C | 29.8°C | 4.6°C | 47 mm | 59% | 3.3 m/s | 4.4 |
| 2011 ❄️ | 25.3°C | 18.0°C | 10.7°C | 29.6°C | 5.9°C | 0 mm | 53% | 3.2 m/s | 4.9 |
| 2010 | 26.4°C | 19.6°C | 12.9°C | 32.1°C | 6.7°C | 28 mm | 62% | 2.6 m/s | 4.4 |
| 2009 | 26.7°C | 20.5°C | 14.4°C | 29.7°C | 10.0°C | 2 mm | 55% | 2.6 m/s | 4.2 |
| 2008 | 27.9°C | 20.6°C | 13.2°C | 30.7°C | 8.8°C | 4 mm | 41% | 2.8 m/s | 4.9 |
| 2007 🔥 | 31.4°C | 24.7°C | 17.9°C | 37.7°C | 11.2°C | 2 mm | 39% | 3.1 m/s | 4.7 |
| 2006 | 25.7°C | 18.2°C | 10.7°C | 28.3°C | 5.4°C | 16 mm | 56% | 3 m/s | 4.9 |
| 2005 | 27.8°C | 20.3°C | 12.9°C | 34.2°C | 7.9°C | 20 mm | 43% | 3 m/s | 4.9 |
| 2004 | 28.0°C | 21.1°C | 14.3°C | 33.1°C | 9.2°C | 8 mm | 49% | 3 m/s | 4.4 |
| 2003 | 28.9°C | 21.9°C | 14.8°C | 34.8°C | 10.1°C | 32 mm | 42% | 3 m/s | 4.7 |
| 2002 | 29.3°C | 21.8°C | 14.3°C | 34.0°C | 6.4°C | 0 mm | 30% | 3.2 m/s | 5 |
| 2001 | 28.0°C | 19.9°C | 11.8°C | 34.2°C | 7.2°C | 0 mm | 30% | 2.7 m/s | 4.9 |
| 2000 | 24.9°C | 18.9°C | 12.8°C | 29.2°C | 3.7°C | 13 mm | 68% | 3.4 m/s | 4.4 |
| 1999 | 28.8°C | 21.7°C | 14.6°C | 32.2°C | 7.4°C | 7 mm | 48% | 3 m/s | 4.8 |
| 1998 | 27.3°C | 20.5°C | 13.6°C | 31.4°C | 6.9°C | 13 mm | 61% | 3 m/s | 4.7 |
| 1997 | 26.5°C | 20.0°C | 13.4°C | 32.3°C | 8.4°C | 36 mm | 55% | 2.8 m/s | 4.2 |
| 1996 | 28.5°C | 21.4°C | 14.3°C | 32.5°C | 9.0°C | 0 mm | 41% | 3.3 m/s | 4.9 |
| 1995 | 27.9°C | 21.4°C | 14.8°C | 33.5°C | 8.3°C | 7 mm | 45% | 3.3 m/s | 4.4 |
| 1994 | 28.3°C | 20.5°C | 12.7°C | 32.1°C | 7.7°C | 0 mm | 37% | 3 m/s | 4.7 |
| 1993 | 29.0°C | 22.8°C | 16.6°C | 32.4°C | 12.3°C | 7 mm | 44% | 3.2 m/s | 4.5 |
| 1992 | 27.0°C | 21.2°C | 15.3°C | 32.7°C | 7.0°C | 65 mm | 55% | 2.9 m/s | 4.1 |
| 1991 | 28.9°C | 22.1°C | 15.3°C | 32.0°C | 10.3°C | 1 mm | 44% | 3.2 m/s | 4.8 |
| 1990 🌧️ | 25.2°C | 19.1°C | 13.1°C | 31.4°C | 6.1°C | 88 mm | 74% | 3.3 m/s | 4.6 |
| 1989 | 28.0°C | 22.2°C | 16.4°C | 32.9°C | 10.9°C | 85 mm | 69% | 2.7 m/s | 4.2 |
| 1988 | 28.6°C | 21.7°C | 14.9°C | 35.0°C | 8.8°C | 24 mm | 49% | 3 m/s | 4.6 |
| 1987 | 27.2°C | 20.7°C | 14.2°C | 34.2°C | 4.1°C | 16 mm | 51% | 3.1 m/s | 4.6 |
| 1986 | 28.8°C | 21.7°C | 14.5°C | 32.2°C | 8.6°C | 39 mm | 53% | 2.7 m/s | 4.7 |
| 1985 | 28.2°C | 21.5°C | 14.9°C | 32.7°C | 7.0°C | 5 mm | 43% | 3.6 m/s | 4.8 |
| 1984 | 28.9°C | 21.7°C | 14.5°C | 31.6°C | 9.6°C | 1 mm | 36% | 3.1 m/s | 4.7 |
| 1983 | 25.9°C | 20.1°C | 14.2°C | 29.5°C | 8.2°C | 38 mm | 71% | 3.2 m/s | — |
| 1982 | 28.9°C | 21.2°C | 13.5°C | 32.0°C | 8.4°C | 0 mm | 34% | 3.1 m/s | — |
| 1981 | 27.5°C | 20.6°C | 13.8°C | 32.2°C | 8.0°C | 70 mm | 50% | 3.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 27.9°C with lows near 14.2°C (mean 21°C), based on 45 years of NASA POWER data.
May averages 17 mm of rainfall in Winton, one of the drier months. The wettest on record was 88 mm in 1990.
The hottest May reached 37.7°C in 2007. The coldest dipped to 3.7°C in 2000.
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 27.9°C to 28°C and overnight lows from 14.2°C to 14.5°C over the same span.
May is one of the cooler months of the year in Winton and one of the drier months, so plan for around 27.9°C daytime highs and 14.2°C at night.
Not quite — May is the 4th coolest month in Winton, averaging 21°C.
For May in Winton, pack light layers you can adjust through the day, with typical highs of 27.9°C and lows of 14.2°C.
Relative humidity in May averages 48% — relatively dry.
Average wind speed in May is 3.1 m/s. The windiest May on record averaged 3.7 m/s (2024).
The wettest May on record was 1990 with 88 mm. On average, May sees 17 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 Winton 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.
