May is one of the cooler months of the year in Deniliquin, with average highs near 18.6°C and lows around 7.1°C (mean 12.9°C). It is about average for rainfall, averaging 32 mm of rainfall and 73% relative humidity across the period.
May is one of the cooler months of the year in Deniliquin. Across 45 years of records, the warmest May in Deniliquin was 2007 — when the month averaged 14.7°C — while the coldest was 2020 at 11.3°C. Typical May days reach 18.6°C with nights near 7.1°C. The long-term May temperature trend is broadly flat.
May is about average for rainfall in Deniliquin, averaging 32 mm of rainfall. The wettest May on record was 1988 with 90 mm, while the driest was 1984 at 4 mm.
Relative humidity in Deniliquin during May averages 73%. The most humid May was 1983 at 82%, and the least humid was 2005 at 58%.
May receives about 2.9 kWh/m²/day of solar energy in Deniliquin. The sunniest Mays were 2005 and 2025 at 3.3 kWh/m²/day, and the cloudiest was 1988 at 2.5.
Average wind speed in Deniliquin during May is 2.1 m/s. The windiest May was 1994 at 2.6 m/s, while the calmest was 2024 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.9°C | 12.7°C | 13.0°C | 12.9°C | 12.7°C | -0.2°C |
| Avg High | 18.4°C | 18.5°C | 19.0°C | 18.6°C | 18.5°C | +0.1°C |
| Avg Low | 7.4°C | 7.0°C | 7.1°C | 7.2°C | 6.9°C | -0.5°C |
| Avg Rain | 45 mm | 35 mm | 22 mm | 32 mm | 26 mm | -19 mm |
May temperatures in Deniliquin have risen by about 0.4°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 0.5°C (2021) to a record high of 28.6°C (1997).
Rainfall in May is about average for rainfall, averaging 32 mm, with a wettest year of 90 mm.
A good time to visit Deniliquin
May is a good time to visit Deniliquin, with days averaging 18.6°C and nights around 7.1°C (mean 12.9°C, cooler than Deniliquin's yearly average) and moderate rainfall. March and December 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 | 20.6°C | 14.2°C | 7.8°C | 26.8°C | 3.8°C | 17 mm | 63% | 2 m/s | 3.3 |
| 2024 | 19.1°C | 13.3°C | 7.4°C | 22.8°C | 2.3°C | 32 mm | 72% | 1.6 m/s | 3.1 |
| 2023 | 17.4°C | 11.7°C | 6.1°C | 21.9°C | 1.9°C | 32 mm | 74% | 2.1 m/s | 2.9 |
| 2022 | 17.9°C | 12.7°C | 7.5°C | 22.7°C | 3.5°C | 30 mm | 78% | 2 m/s | 2.8 |
| 2021 | 19.2°C | 13.1°C | 7.0°C | 26.0°C | 0.5°C | 27 mm | 71% | 2.1 m/s | 3 |
| 2020 ❄️ | 16.9°C | 11.3°C | 5.7°C | 22.7°C | 3.1°C | 15 mm | 79% | 2.3 m/s | 3 |
| 2019 | 18.7°C | 13.1°C | 7.5°C | 23.4°C | 3.4°C | 46 mm | 72% | 2.3 m/s | 2.8 |
| 2018 | 19.3°C | 13.4°C | 7.5°C | 28.6°C | 3.4°C | 20 mm | 68% | 2.5 m/s | 3 |
| 2017 | 18.7°C | 12.7°C | 6.8°C | 22.5°C | 2.1°C | 15 mm | 73% | 1.9 m/s | 3.1 |
| 2016 | 19.0°C | 13.5°C | 8.1°C | 25.6°C | 1.3°C | 61 mm | 73% | 2.5 m/s | 2.9 |
| 2015 | 18.3°C | 12.7°C | 7.1°C | 23.2°C | 2.3°C | 19 mm | 75% | 2.5 m/s | 2.8 |
| 2014 | 19.7°C | 14.4°C | 9.0°C | 25.4°C | 3.3°C | 45 mm | 76% | 2.1 m/s | 2.7 |
| 2013 | 18.6°C | 12.7°C | 6.9°C | 25.5°C | 3.6°C | 25 mm | 70% | 2.1 m/s | 2.9 |
| 2012 | 18.0°C | 12.0°C | 6.0°C | 26.0°C | 3.4°C | 15 mm | 74% | 2.1 m/s | 3.1 |
| 2011 | 17.0°C | 11.4°C | 5.8°C | 22.8°C | 2.2°C | 15 mm | 77% | 2 m/s | 2.8 |
| 2010 | 18.8°C | 13.2°C | 7.7°C | 25.1°C | 3.0°C | 61 mm | 75% | 1.8 m/s | 2.9 |
| 2009 | 19.1°C | 13.2°C | 7.3°C | 23.4°C | 3.8°C | 18 mm | 74% | 2.1 m/s | 3.1 |
| 2008 | 18.5°C | 12.6°C | 6.6°C | 22.8°C | 3.6°C | 12 mm | 74% | 1.7 m/s | 3 |
| 2007 🔥 | 20.4°C | 14.7°C | 9.0°C | 25.1°C | 3.8°C | 47 mm | 72% | 2.4 m/s | 2.7 |
| 2006 | 17.6°C | 11.6°C | 5.6°C | 22.2°C | 1.9°C | 8 mm | 74% | 2 m/s | 3.1 |
| 2005 | 21.2°C | 14.5°C | 7.8°C | 27.7°C | 2.9°C | 5 mm | 58% | 1.8 m/s | 3.3 |
| 2004 | 18.1°C | 12.0°C | 5.8°C | 21.5°C | 1.6°C | 23 mm | 69% | 2.1 m/s | 3.1 |
| 2003 | 19.2°C | 13.4°C | 7.5°C | 23.7°C | 3.0°C | 35 mm | 71% | 1.8 m/s | 2.9 |
| 2002 | 19.6°C | 13.5°C | 7.4°C | 27.7°C | 2.7°C | 18 mm | 63% | 1.9 m/s | 3.1 |
| 2001 | 18.4°C | 12.7°C | 7.1°C | 24.7°C | 3.5°C | 9 mm | 73% | 1.7 m/s | 2.8 |
| 2000 | 17.4°C | 11.9°C | 6.4°C | 23.9°C | 1.5°C | 43 mm | 75% | 2.3 m/s | 2.9 |
| 1999 | 19.1°C | 12.9°C | 6.8°C | 24.1°C | 0.7°C | 48 mm | 68% | 2 m/s | 2.8 |
| 1998 | 18.4°C | 12.8°C | 7.2°C | 23.3°C | 2.7°C | 10 mm | 74% | 2 m/s | 2.9 |
| 1997 | 18.3°C | 12.9°C | 7.4°C | 28.6°C | 1.0°C | 42 mm | 72% | 2 m/s | 2.7 |
| 1996 | 18.6°C | 12.7°C | 6.7°C | 25.3°C | 1.8°C | 16 mm | 75% | 1.9 m/s | 3 |
| 1995 | 17.5°C | 12.3°C | 7.1°C | 24.6°C | 3.2°C | 65 mm | 79% | 2 m/s | 2.9 |
| 1994 | 19.1°C | 13.2°C | 7.2°C | 25.6°C | 2.7°C | 9 mm | 63% | 2.6 m/s | 3.1 |
| 1993 | 19.0°C | 13.0°C | 7.0°C | 26.7°C | 1.6°C | 24 mm | 69% | 1.7 m/s | 3 |
| 1992 | 17.8°C | 12.3°C | 6.8°C | 24.5°C | 2.2°C | 61 mm | 77% | 1.8 m/s | 2.8 |
| 1991 | 18.9°C | 12.6°C | 6.3°C | 23.8°C | 3.4°C | 6 mm | 71% | 1.7 m/s | 3.1 |
| 1990 | 18.1°C | 12.6°C | 7.1°C | 26.4°C | 1.1°C | 65 mm | 76% | 2.1 m/s | 2.9 |
| 1989 | 18.3°C | 13.6°C | 8.9°C | 22.9°C | 3.7°C | 51 mm | 82% | 2.1 m/s | 2.9 |
| 1988 🌧️ | 19.1°C | 14.2°C | 9.2°C | 26.8°C | 3.4°C | 90 mm | 79% | 2 m/s | 2.5 |
| 1987 | 17.7°C | 12.3°C | 6.9°C | 24.6°C | 2.2°C | 27 mm | 76% | 2.3 m/s | 2.9 |
| 1986 | 18.5°C | 13.0°C | 7.4°C | 22.8°C | 2.7°C | 41 mm | 74% | 2 m/s | 3 |
| 1985 | 18.9°C | 12.9°C | 7.0°C | 27.6°C | 1.5°C | 40 mm | 70% | 2.1 m/s | 3.1 |
| 1984 | 18.7°C | 12.6°C | 6.4°C | 23.5°C | 2.5°C | 4 mm | 69% | 1.9 m/s | 3.2 |
| 1983 | 17.5°C | 12.6°C | 7.8°C | 22.5°C | 1.4°C | 77 mm | 82% | 2.4 m/s | — |
| 1982 | 18.1°C | 12.0°C | 5.9°C | 25.0°C | 1.6°C | 22 mm | 67% | 2.1 m/s | — |
| 1981 | 18.5°C | 12.7°C | 6.9°C | 25.0°C | 1.7°C | 49 mm | 73% | 2.3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 18.6°C with lows near 7.1°C (mean 12.9°C), based on 45 years of NASA POWER data.
May averages 32 mm of rainfall in Deniliquin, about average for rainfall. The wettest on record was 90 mm in 1988.
The hottest May reached 28.6°C in 1997. The coldest dipped to 0.5°C in 2021.
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 18.3°C to 18.8°C and overnight lows from 6.8°C to 7.2°C over the same span.
May is one of the cooler months of the year in Deniliquin and about average for rainfall, so plan for around 18.6°C daytime highs and 7.1°C at night.
Not quite — May is the 5th coolest month in Deniliquin, averaging 12.9°C.
For May in Deniliquin, pack warm layers and a jacket for chilly mornings, with typical highs of 18.6°C and lows of 7.1°C.
Relative humidity in May averages 73% — moderately humid.
Average wind speed in May is 2.1 m/s. The windiest May on record averaged 2.6 m/s (1994).
The wettest May on record was 1988 with 90 mm. On average, May sees 32 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 Deniliquin 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.
