May is close to Exmouth's year-round average, with average highs near 13.8°C and lows around 9.5°C (mean 11.7°C). It is one of the drier months, averaging 60 mm of rainfall and 85% relative humidity across the period.
May is close to Exmouth's year-round average. Across 45 years of records, the warmest May in Exmouth was 2025 — when the month averaged 13.3°C — while the coldest was 1996 at 9.4°C. Typical May days reach 13.8°C with nights near 9.5°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Exmouth, averaging 60 mm of rainfall. The wettest May on record was 2021 with 131 mm, while the driest was 1989 at 9 mm.
Relative humidity in Exmouth during May averages 85%. The most humid May was 1981 at 88%, and the least humid was 2020 at 80%.
May receives about 5.3 kWh/m²/day of solar energy in Exmouth. The sunniest May was 2020 at 6.8 kWh/m²/day, and the cloudiest was 1984 at 4.4.
Average wind speed in Exmouth during May is 4.2 m/s. The windiest May was 1996 at 5.3 m/s, while the calmest were 2004 and 2018 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.9°C | 11.6°C | 11.8°C | 11.6°C | 12.4°C | +1.5°C |
| Avg High | 13.0°C | 13.9°C | 13.9°C | 13.7°C | 14.7°C | +1.7°C |
| Avg Low | 8.9°C | 9.4°C | 9.7°C | 9.5°C | 10.2°C | +1.3°C |
| Avg Rain | 60 mm | 52 mm | 73 mm | 54 mm | 66 mm | +6 mm |
May temperatures in Exmouth have risen by about 1.8°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 4.1°C (1996) to a record high of 20.6°C (1995).
Rainfall in May is one of the drier months, averaging 60 mm, with a wettest year of 131 mm.
A good time to visit Exmouth
May is a good time to visit Exmouth, with days averaging 13.8°C and nights around 9.5°C (mean 11.7°C, close to Exmouth's yearly average) and moderate rainfall. August and July 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 🔥 | 15.7°C | 13.3°C | 10.9°C | 18.4°C | 6.8°C | 29 mm | 84% | 3.8 m/s | 6.1 |
| 2024 | 15.1°C | 13.2°C | 11.2°C | 17.8°C | 8.7°C | 108 mm | 87% | 3.5 m/s | 5.4 |
| 2023 | 15.2°C | 12.7°C | 10.1°C | 18.0°C | 8.0°C | 57 mm | 85% | 4.1 m/s | 6.1 |
| 2022 | 14.8°C | 12.6°C | 10.5°C | 16.2°C | 8.8°C | 51 mm | 86% | 3.5 m/s | 5.4 |
| 2021 🌧️ | 12.3°C | 10.6°C | 8.8°C | 16.1°C | 6.0°C | 131 mm | 83% | 5.1 m/s | 5.3 |
| 2020 | 14.9°C | 12.2°C | 9.6°C | 19.2°C | 5.3°C | 21 mm | 80% | 4.2 m/s | 6.8 |
| 2019 | 13.9°C | 11.7°C | 9.4°C | 17.0°C | 5.9°C | 42 mm | 83% | 3.7 m/s | 5.6 |
| 2018 | 14.8°C | 12.3°C | 9.8°C | 19.5°C | 6.0°C | 38 mm | 85% | 3.1 m/s | 5.7 |
| 2017 | 14.3°C | 12.3°C | 10.4°C | 17.4°C | 7.3°C | 79 mm | 87% | 4.1 m/s | 5.2 |
| 2016 | 14.1°C | 11.9°C | 9.7°C | 17.8°C | 6.7°C | 48 mm | 87% | 3.7 m/s | 5.4 |
| 2015 | 13.3°C | 11.3°C | 9.4°C | 17.4°C | 7.9°C | 79 mm | 84% | 5 m/s | 5.3 |
| 2014 | 13.9°C | 12.1°C | 10.3°C | 17.8°C | 8.2°C | 83 mm | 85% | 4 m/s | 5.2 |
| 2013 | 12.4°C | 10.1°C | 7.8°C | 16.1°C | 5.2°C | 51 mm | 84% | 4.8 m/s | 5.5 |
| 2012 | 13.8°C | 11.7°C | 9.5°C | 20.0°C | 6.1°C | 49 mm | 85% | 4 m/s | 5.5 |
| 2011 | 13.8°C | 11.8°C | 9.9°C | 14.6°C | 8.0°C | 38 mm | 84% | 5.2 m/s | 5.4 |
| 2010 | 13.1°C | 10.8°C | 8.5°C | 20.5°C | 5.4°C | 28 mm | 83% | 3.4 m/s | 5.4 |
| 2009 | 14.0°C | 11.8°C | 9.7°C | 18.5°C | 7.2°C | 39 mm | 84% | 4.8 m/s | 5.7 |
| 2008 | 14.7°C | 12.7°C | 10.8°C | 19.2°C | 8.3°C | 121 mm | 87% | 3.7 m/s | 5 |
| 2007 | 14.5°C | 12.3°C | 10.2°C | 18.5°C | 7.7°C | 115 mm | 84% | 5.1 m/s | 5.2 |
| 2006 | 13.4°C | 11.5°C | 9.7°C | 16.1°C | 7.5°C | 102 mm | 88% | 4.6 m/s | 4.9 |
| 2005 | 12.9°C | 11.0°C | 9.0°C | 15.5°C | 6.1°C | 41 mm | 85% | 4.7 m/s | 5.4 |
| 2004 | 14.5°C | 12.2°C | 9.9°C | 18.7°C | 6.5°C | 35 mm | 84% | 3.1 m/s | 5.7 |
| 2003 | 13.3°C | 11.5°C | 9.6°C | 17.6°C | 7.3°C | 60 mm | 86% | 4.6 m/s | 4.9 |
| 2002 | 13.5°C | 11.6°C | 9.7°C | 15.7°C | 7.0°C | 106 mm | 85% | 5.1 m/s | 5.1 |
| 2001 | 14.1°C | 11.7°C | 9.2°C | 17.9°C | 5.6°C | 26 mm | 85% | 3.7 m/s | 5.5 |
| 2000 | 13.6°C | 11.6°C | 9.5°C | 17.4°C | 7.3°C | 83 mm | 88% | 4.4 m/s | 4.8 |
| 1999 | 14.4°C | 12.4°C | 10.5°C | 17.0°C | 7.7°C | 56 mm | 87% | 4.3 m/s | 4.8 |
| 1998 | 15.3°C | 13.0°C | 10.7°C | 20.5°C | 6.4°C | 33 mm | 85% | 3.7 m/s | 6.4 |
| 1997 | 13.7°C | 11.6°C | 9.5°C | 17.3°C | 4.4°C | 59 mm | 85% | 4.8 m/s | 5.5 |
| 1996 ❄️ | 11.7°C | 9.4°C | 7.2°C | 14.6°C | 4.1°C | 87 mm | 83% | 5.3 m/s | 4.6 |
| 1995 | 13.7°C | 11.4°C | 9.2°C | 20.6°C | 5.3°C | 44 mm | 83% | 4.1 m/s | 5.4 |
| 1994 | 12.4°C | 10.7°C | 9.0°C | 14.2°C | 6.6°C | 113 mm | 86% | 4.2 m/s | 4.9 |
| 1993 | 13.4°C | 11.3°C | 9.1°C | 17.2°C | 5.9°C | 79 mm | 85% | 5 m/s | 4.7 |
| 1992 | 14.8°C | 12.3°C | 9.9°C | 19.5°C | 6.0°C | 22 mm | 84% | 3.8 m/s | 5.6 |
| 1991 | 13.8°C | 11.2°C | 8.6°C | 17.8°C | 4.9°C | 10 mm | 84% | 3.5 m/s | 4.7 |
| 1990 | 15.4°C | 12.8°C | 10.2°C | 19.4°C | 7.8°C | 16 mm | 82% | 3.5 m/s | 5.8 |
| 1989 | 15.3°C | 12.8°C | 10.3°C | 20.3°C | 7.9°C | 9 mm | 83% | 3.3 m/s | 5.9 |
| 1988 | 13.7°C | 11.7°C | 9.6°C | 17.7°C | 7.6°C | 54 mm | 85% | 4.1 m/s | 5 |
| 1987 | 12.9°C | 10.4°C | 8.0°C | 17.8°C | 5.0°C | 31 mm | 83% | 4.4 m/s | 4.7 |
| 1986 | 12.0°C | 10.3°C | 8.5°C | 13.7°C | 6.6°C | 82 mm | 87% | 5.2 m/s | 4.7 |
| 1985 | 13.2°C | 11.0°C | 8.8°C | 17.6°C | 5.6°C | 46 mm | 84% | 4 m/s | 4.8 |
| 1984 | 12.7°C | 10.3°C | 8.0°C | 17.2°C | 5.0°C | 64 mm | 83% | 4.2 m/s | 4.4 |
| 1983 | 11.9°C | 10.1°C | 8.3°C | 14.9°C | 6.6°C | 95 mm | 87% | 4.3 m/s | — |
| 1982 | 13.0°C | 11.0°C | 9.1°C | 17.6°C | 5.0°C | 36 mm | 84% | 3.9 m/s | — |
| 1981 | 12.5°C | 10.9°C | 9.3°C | 15.8°C | 6.0°C | 120 mm | 88% | 4.8 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 13.8°C with lows near 9.5°C (mean 11.7°C), based on 45 years of NASA POWER data.
May averages 60 mm of rainfall in Exmouth, one of the drier months. The wettest on record was 131 mm in 2021.
The hottest May reached 20.6°C in 1995. The coldest dipped to 4.1°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.8°C. Daytime highs moved from 12.7°C to 14.6°C and overnight lows from 8.7°C to 10.3°C over the same span.
May is close to Exmouth's year-round average and one of the drier months, so plan for around 13.8°C daytime highs and 9.5°C at night.
Not quite — May is the 7th coolest month in Exmouth, averaging 11.7°C.
For May in Exmouth, pack light layers you can adjust through the day, with typical highs of 13.8°C and lows of 9.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 85% — quite humid.
Average wind speed in May is 4.2 m/s. The windiest May on record averaged 5.3 m/s (1996).
The wettest May on record was 2021 with 131 mm. On average, May sees 60 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 Exmouth 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.
