May is one of the warmer months of the year in Niwari, with average highs near 43°C and lows around 28.2°C (mean 35.6°C). It is one of the drier months, averaging 14 mm of rainfall and 22% relative humidity across the period.
May is one of the warmer months of the year in Niwari. Across 45 years of records, the warmest May in Niwari was 2002 — when the month averaged 37.2°C — while the coldest was 2023 at 32.9°C. Typical May days reach 43°C with nights near 28.2°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Niwari, averaging 14 mm of rainfall. The wettest May on record was 1997 with 67 mm, while the driest was 1991 at 0 mm.
Relative humidity in Niwari during May averages 22%. The most humid May was 2021 at 35%, and the least humid was 1984 at 14%.
May receives about 7.2 kWh/m²/day of solar energy in Niwari. The sunniest Mays were 1984, 1985 and 1986 at 7.7 kWh/m²/day, and the cloudiest was 2025 at 5.9.
Average wind speed in Niwari during May is 2.9 m/s. The windiest May was 2002 at 3.7 m/s, while the calmest were 1983 and 2018 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 35.3°C | 35.7°C | 35.7°C | 36.2°C | 34.8°C | -0.5°C |
| Avg High | 43.1°C | 43.3°C | 43.0°C | 43.6°C | 41.8°C | -1.3°C |
| Avg Low | 27.5°C | 28.1°C | 28.4°C | 28.9°C | 27.7°C | +0.2°C |
| Avg Rain | 15 mm | 12 mm | 17 mm | 8 mm | 22 mm | +6 mm |
May temperatures in Niwari have fallen by about 0.8°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 19.7°C (2023) to a record high of 48.2°C (1994).
Rainfall in May is one of the drier months, averaging 14 mm, with a wettest year of 67 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Niwari
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Niwari. That said, May — with days averaging 43°C and nights around 28.2°C (mean 35.6°C) and low rainfall (14 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 41.2°C | 34.7°C | 28.1°C | 45.2°C | 24.2°C | 25 mm | 34% | 2.6 m/s | 5.9 |
| 2024 | 43.4°C | 36.2°C | 29.0°C | 48.0°C | 20.6°C | 3 mm | 22% | 2.7 m/s | 6.6 |
| 2023 ❄️ | 40.0°C | 32.9°C | 25.8°C | 45.2°C | 19.7°C | 26 mm | 33% | 2.6 m/s | 7 |
| 2022 | 43.3°C | 36.3°C | 29.2°C | 47.3°C | 25.5°C | 20 mm | 24% | 3 m/s | 6.6 |
| 2021 | 39.9°C | 33.0°C | 26.1°C | 43.4°C | 22.7°C | 45 mm | 35% | 2.5 m/s | 6.3 |
| 2020 | 42.9°C | 35.4°C | 27.9°C | 46.4°C | 24.3°C | 11 mm | 23% | 2.6 m/s | 7.3 |
| 2019 | 42.9°C | 35.7°C | 28.4°C | 46.3°C | 24.9°C | 3 mm | 19% | 2.6 m/s | 7.4 |
| 2018 | 44.3°C | 36.8°C | 29.3°C | 47.1°C | 25.5°C | 2 mm | 18% | 2.3 m/s | 6.9 |
| 2017 | 44.1°C | 37.0°C | 30.0°C | 47.2°C | 24.0°C | 16 mm | 20% | 2.8 m/s | 7 |
| 2016 | 43.5°C | 36.7°C | 29.9°C | 47.2°C | 25.8°C | 25 mm | 24% | 2.8 m/s | 6.9 |
| 2015 | 43.6°C | 35.8°C | 28.0°C | 45.9°C | 24.5°C | 16 mm | 21% | 2.9 m/s | 7.2 |
| 2014 | 42.7°C | 35.4°C | 28.1°C | 46.9°C | 25.9°C | 4 mm | 21% | 2.9 m/s | 7.3 |
| 2013 | 44.2°C | 36.3°C | 28.4°C | 46.9°C | 22.6°C | 0 mm | 16% | 3.5 m/s | 7.6 |
| 2012 | 42.9°C | 35.4°C | 27.9°C | 46.2°C | 22.8°C | 5 mm | 18% | 2.9 m/s | 7.4 |
| 2011 | 43.6°C | 36.7°C | 29.7°C | 46.2°C | 25.4°C | 10 mm | 22% | 2.8 m/s | 7.2 |
| 2010 | 44.1°C | 36.5°C | 29.0°C | 46.9°C | 24.6°C | 2 mm | 18% | 2.6 m/s | 7.1 |
| 2009 | 43.4°C | 36.1°C | 28.9°C | 45.3°C | 25.3°C | 13 mm | 21% | 2.5 m/s | 7.2 |
| 2008 | 42.1°C | 35.1°C | 28.1°C | 44.1°C | 26.0°C | 14 mm | 25% | 3.2 m/s | 7.1 |
| 2007 | 42.5°C | 35.3°C | 28.0°C | 44.5°C | 22.9°C | 30 mm | 25% | 2.8 m/s | 7.1 |
| 2006 | 43.2°C | 36.5°C | 29.7°C | 46.6°C | 26.0°C | 14 mm | 24% | 2.7 m/s | 6.7 |
| 2005 | 42.2°C | 34.6°C | 27.0°C | 44.8°C | 22.3°C | 13 mm | 21% | 2.7 m/s | 7.3 |
| 2004 | 42.8°C | 35.6°C | 28.3°C | 46.1°C | 21.3°C | 12 mm | 23% | 3.3 m/s | 7.1 |
| 2003 | 43.0°C | 35.1°C | 27.1°C | 45.4°C | 20.5°C | 3 mm | 15% | 2.9 m/s | 7.2 |
| 2002 🔥 | 44.9°C | 37.2°C | 29.6°C | 46.9°C | 26.0°C | 11 mm | 18% | 3.7 m/s | 7.2 |
| 2001 | 42.6°C | 35.5°C | 28.3°C | 46.6°C | 25.4°C | 49 mm | 30% | 3.1 m/s | 7.2 |
| 2000 | 42.9°C | 35.9°C | 29.0°C | 46.0°C | 25.1°C | 15 mm | 28% | 3.6 m/s | 7 |
| 1999 | 43.1°C | 35.9°C | 28.7°C | 45.8°C | 26.4°C | 6 mm | 20% | 3.1 m/s | 7.2 |
| 1998 | 44.5°C | 36.7°C | 28.9°C | 47.9°C | 25.1°C | 3 mm | 18% | 2.8 m/s | 7.3 |
| 1997 🌧️ | 40.5°C | 33.2°C | 25.9°C | 44.6°C | 20.2°C | 67 mm | 26% | 2.7 m/s | 7.2 |
| 1996 | 42.8°C | 35.6°C | 28.3°C | 45.2°C | 23.1°C | 5 mm | 19% | 3.2 m/s | 7.1 |
| 1995 | 43.1°C | 35.3°C | 27.5°C | 46.1°C | 25.1°C | 1 mm | 18% | 3 m/s | 7.5 |
| 1994 | 44.3°C | 36.4°C | 28.6°C | 48.2°C | 25.1°C | 2 mm | 17% | 2.7 m/s | 7.6 |
| 1993 | 44.3°C | 36.5°C | 28.7°C | 46.7°C | 24.2°C | 2 mm | 16% | 3.2 m/s | 7.6 |
| 1992 | 43.0°C | 35.2°C | 27.4°C | 45.7°C | 23.8°C | 5 mm | 17% | 2.5 m/s | 7.6 |
| 1991 | 44.5°C | 36.5°C | 28.6°C | 46.5°C | 25.1°C | 0 mm | 16% | 3 m/s | 7.5 |
| 1990 | 42.5°C | 35.6°C | 28.6°C | 45.7°C | 23.5°C | 26 mm | 27% | 3 m/s | 7 |
| 1989 | 44.1°C | 35.5°C | 27.0°C | 47.0°C | 20.9°C | 3 mm | 15% | 2.7 m/s | 7.4 |
| 1988 | 45.1°C | 36.9°C | 28.8°C | 47.4°C | 24.0°C | 9 mm | 16% | 3 m/s | 7.2 |
| 1987 | 40.0°C | 33.1°C | 26.2°C | 43.2°C | 20.7°C | 54 mm | 33% | 2.6 m/s | 6.9 |
| 1986 | 43.0°C | 35.1°C | 27.1°C | 45.8°C | 20.8°C | 11 mm | 17% | 2.8 m/s | 7.7 |
| 1985 | 44.1°C | 36.3°C | 28.5°C | 46.6°C | 25.5°C | 4 mm | 15% | 2.9 m/s | 7.7 |
| 1984 | 45.2°C | 36.6°C | 28.1°C | 48.0°C | 21.4°C | 0 mm | 14% | 3.5 m/s | 7.7 |
| 1983 | 42.7°C | 35.2°C | 27.7°C | 44.6°C | 23.9°C | 18 mm | 23% | 2.3 m/s | — |
| 1982 | 40.9°C | 33.7°C | 26.4°C | 44.4°C | 21.6°C | 14 mm | 28% | 2.8 m/s | — |
| 1981 | 43.1°C | 35.3°C | 27.4°C | 46.8°C | 23.8°C | 22 mm | 23% | 2.9 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 43°C with lows near 28.2°C (mean 35.6°C), based on 45 years of NASA POWER data.
May averages 14 mm of rainfall in Niwari, one of the drier months. The wettest on record was 67 mm in 1997.
The hottest May reached 48.2°C in 1994. The coldest dipped to 19.7°C in 2023.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.8°C. Daytime highs moved from 43.2°C to 41.6°C and overnight lows from 27.6°C to 27.6°C over the same span.
May is one of the warmer months of the year in Niwari and one of the drier months, so plan for around 43°C daytime highs and 28.2°C at night.
Not quite — May is the 12th coolest month in Niwari, averaging 35.6°C.
For May in Niwari, pack light, breathable clothing and sun protection, with typical highs of 43°C and lows of 28.2°C.
Relative humidity in May averages 22% — relatively dry.
Average wind speed in May is 2.9 m/s. The windiest May on record averaged 3.7 m/s (2002).
The wettest May on record was 1997 with 67 mm. On average, May sees 14 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 Niwari 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.
