May is one of the cooler months of the year in Narrogin, with average highs near 19.6°C and lows around 8.4°C (mean 14°C). It is a relatively wet time of year, averaging 64 mm of rainfall and 74% relative humidity across the period.
May is one of the cooler months of the year in Narrogin. Across 45 years of records, the warmest May in Narrogin was 2024 — when the month averaged 16.4°C — while the coldest were 1987 and 2016 at 12.6°C. Typical May days reach 19.6°C with nights near 8.4°C. The long-term trend is warming, about 0.2°C per decade.
May is a relatively wet time of year in Narrogin, averaging 64 mm of rainfall. The wettest May on record was 2005 with 143 mm, while the driest were 2000 and 2019 at 15 mm.
Relative humidity in Narrogin during May averages 74%. The most humid May was 2014 at 85%, and the least humid was 2018 at 60%.
May receives about 3.3 kWh/m²/day of solar energy in Narrogin. The sunniest May was 2009 at 3.7 kWh/m²/day, and the cloudiest was 1999 at 2.8.
Average wind speed in Narrogin during May is 2.8 m/s. The windiest May was 1984 at 3.5 m/s, while the calmest was 2008 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.6°C | 14.1°C | 14.3°C | 13.8°C | 14.5°C | +0.9°C |
| Avg High | 19.1°C | 19.5°C | 19.9°C | 19.6°C | 20.3°C | +1.2°C |
| Avg Low | 8.0°C | 8.6°C | 8.7°C | 8.0°C | 8.7°C | +0.7°C |
| Avg Rain | 71 mm | 70 mm | 59 mm | 56 mm | 69 mm | -2 mm |
May temperatures in Narrogin have risen by about 1.1°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 2°C (1995) to a record high of 30.6°C (2025).
Rainfall in May is a relatively wet time of year, averaging 64 mm, with a wettest year of 143 mm.
A good time to visit Narrogin
May is a good time to visit Narrogin, with days averaging 19.6°C and nights around 8.4°C (mean 14°C, cooler than Narrogin's yearly average) and moderate rainfall. December and March 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 | 21.9°C | 15.4°C | 8.9°C | 30.6°C | 3.8°C | 29 mm | 68% | 2.9 m/s | 3.5 |
| 2024 🔥 | 21.9°C | 16.4°C | 10.8°C | 25.9°C | 7.2°C | 70 mm | 68% | 2.8 m/s | 3.2 |
| 2023 | 19.8°C | 13.8°C | 7.8°C | 25.2°C | 3.1°C | 23 mm | 73% | 2.6 m/s | 3.3 |
| 2022 | 19.5°C | 13.8°C | 8.1°C | 25.1°C | 5.0°C | 92 mm | 76% | 2.6 m/s | 3.3 |
| 2021 | 19.3°C | 14.2°C | 9.0°C | 24.6°C | 3.4°C | 83 mm | 77% | 2.6 m/s | 3 |
| 2020 | 19.3°C | 13.4°C | 7.6°C | 28.5°C | 3.8°C | 114 mm | 72% | 3.3 m/s | 3.3 |
| 2019 | 19.9°C | 13.3°C | 6.7°C | 27.2°C | 2.3°C | 15 mm | 67% | 2.5 m/s | 3.6 |
| 2018 | 21.7°C | 15.1°C | 8.6°C | 30.0°C | 4.1°C | 43 mm | 60% | 3.1 m/s | 3.6 |
| 2017 | 20.2°C | 14.2°C | 8.2°C | 28.0°C | 4.3°C | 40 mm | 73% | 2.7 m/s | 3.3 |
| 2016 | 18.2°C | 12.6°C | 7.1°C | 23.9°C | 2.2°C | 67 mm | 80% | 2.7 m/s | 3.2 |
| 2015 | 18.5°C | 12.8°C | 7.0°C | 22.7°C | 3.6°C | 31 mm | 74% | 2.6 m/s | 3.4 |
| 2014 | 18.5°C | 14.1°C | 9.6°C | 21.6°C | 3.6°C | 120 mm | 85% | 2.9 m/s | 2.9 |
| 2013 | 18.8°C | 13.6°C | 8.4°C | 24.5°C | 4.4°C | 97 mm | 78% | 2.7 m/s | 3.2 |
| 2012 | 20.2°C | 14.3°C | 8.4°C | 26.0°C | 4.4°C | 53 mm | 73% | 2.5 m/s | 3.4 |
| 2011 | 20.4°C | 14.7°C | 9.0°C | 25.4°C | 6.2°C | 49 mm | 73% | 2.7 m/s | 3.3 |
| 2010 | 19.7°C | 13.4°C | 7.1°C | 27.2°C | 4.7°C | 45 mm | 72% | 2.5 m/s | 3.4 |
| 2009 | 21.4°C | 14.8°C | 8.3°C | 25.8°C | 4.7°C | 48 mm | 61% | 2.8 m/s | 3.7 |
| 2008 | 19.9°C | 14.5°C | 9.1°C | 25.9°C | 6.5°C | 84 mm | 81% | 2.2 m/s | 3.2 |
| 2007 | 18.2°C | 13.3°C | 8.4°C | 24.2°C | 2.8°C | 34 mm | 78% | 2.7 m/s | 3.3 |
| 2006 | 19.9°C | 13.5°C | 7.2°C | 25.7°C | 2.8°C | 20 mm | 70% | 2.6 m/s | 3.4 |
| 2005 🌧️ | 20.4°C | 15.5°C | 10.6°C | 27.2°C | 7.1°C | 143 mm | 81% | 3 m/s | 2.9 |
| 2004 | 19.0°C | 13.5°C | 8.0°C | 27.7°C | 2.7°C | 64 mm | 71% | 2.9 m/s | 3.2 |
| 2003 | 20.6°C | 15.1°C | 9.5°C | 27.5°C | 5.6°C | 66 mm | 70% | 3 m/s | 3.2 |
| 2002 | 20.4°C | 14.7°C | 8.9°C | 30.0°C | 5.5°C | 43 mm | 75% | 2.9 m/s | 3.3 |
| 2001 | 20.1°C | 14.6°C | 9.0°C | 28.4°C | 4.8°C | 71 mm | 76% | 2.5 m/s | 3.1 |
| 2000 | 19.3°C | 13.4°C | 7.5°C | 24.6°C | 5.1°C | 15 mm | 70% | 2.4 m/s | 3.6 |
| 1999 | 19.7°C | 14.9°C | 10.0°C | 27.1°C | 3.5°C | 93 mm | 77% | 3.1 m/s | 2.8 |
| 1998 | 21.3°C | 15.2°C | 9.0°C | 28.0°C | 4.4°C | 44 mm | 73% | 2.8 m/s | 3.2 |
| 1997 | 18.7°C | 13.7°C | 8.7°C | 26.1°C | 4.3°C | 67 mm | 77% | 3.3 m/s | 3 |
| 1996 | 20.9°C | 14.7°C | 8.6°C | 28.6°C | 4.0°C | 44 mm | 65% | 2.8 m/s | 3.4 |
| 1995 | 18.6°C | 12.9°C | 7.2°C | 25.8°C | 2.0°C | 84 mm | 72% | 3.1 m/s | 3.5 |
| 1994 | 20.6°C | 14.9°C | 9.1°C | 27.5°C | 5.7°C | 112 mm | 73% | 3 m/s | 3.4 |
| 1993 | 18.8°C | 13.5°C | 8.1°C | 23.3°C | 3.3°C | 75 mm | 77% | 2.8 m/s | 3.2 |
| 1992 | 17.8°C | 13.1°C | 8.3°C | 21.5°C | 4.3°C | 58 mm | 80% | 3 m/s | 3.2 |
| 1991 | 19.1°C | 14.0°C | 8.9°C | 25.9°C | 4.3°C | 69 mm | 74% | 3 m/s | 3.2 |
| 1990 | 19.2°C | 13.7°C | 8.3°C | 25.8°C | 3.6°C | 57 mm | 78% | 2.4 m/s | 3.3 |
| 1989 | 19.4°C | 13.9°C | 8.4°C | 24.6°C | 2.8°C | 108 mm | 75% | 2.6 m/s | 3.2 |
| 1988 | 18.5°C | 13.9°C | 9.3°C | 23.8°C | 4.9°C | 101 mm | 82% | 3.4 m/s | 3 |
| 1987 ❄️ | 18.5°C | 12.6°C | 6.7°C | 23.6°C | 4.3°C | 27 mm | 72% | 2.6 m/s | 3.3 |
| 1986 | 19.3°C | 13.8°C | 8.3°C | 24.1°C | 4.9°C | 69 mm | 74% | 3 m/s | 3.2 |
| 1985 | 19.5°C | 13.1°C | 6.7°C | 25.3°C | 3.2°C | 42 mm | 65% | 2.7 m/s | 3.6 |
| 1984 | 17.8°C | 13.2°C | 8.7°C | 21.2°C | 4.8°C | 124 mm | 80% | 3.5 m/s | 3.2 |
| 1983 | 20.7°C | 14.6°C | 8.6°C | 27.5°C | 3.7°C | 35 mm | 73% | 2.8 m/s | — |
| 1982 | 19.2°C | 13.5°C | 7.7°C | 25.1°C | 2.9°C | 28 mm | 74% | 2.5 m/s | — |
| 1981 | 19.0°C | 13.5°C | 8.0°C | 26.0°C | 2.9°C | 100 mm | 69% | 3.3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 19.6°C with lows near 8.4°C (mean 14°C), based on 45 years of NASA POWER data.
May averages 64 mm of rainfall in Narrogin, a relatively wet time of year. The wettest on record was 143 mm in 2005.
The hottest May reached 30.6°C in 2025. The coldest dipped to 2°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.1°C. Daytime highs moved from 19.2°C to 20.5°C and overnight lows from 7.9°C to 8.9°C over the same span.
May is one of the cooler months of the year in Narrogin and a relatively wet time of year, so plan for around 19.6°C daytime highs and 8.4°C at night.
Not quite — May is the 5th coolest month in Narrogin, averaging 14°C.
For May in Narrogin, pack light layers you can adjust through the day, with typical highs of 19.6°C and lows of 8.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 74% — moderately humid.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.5 m/s (1984).
The wettest May on record was 2005 with 143 mm. On average, May sees 64 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 Narrogin 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.
