May is one of the cooler months of the year in Port Hedland, with average highs near 31.6°C and lows around 18.3°C (mean 25°C). It is one of the drier months, averaging 20 mm of rainfall and 46% relative humidity across the period.
May is one of the cooler months of the year in Port Hedland. Across 45 years of records, the warmest Mays in Port Hedland were 1998 and 2002 — when the month averaged 27.5°C — while the coldest was 2000 at 19.9°C. Typical May days reach 31.6°C with nights near 18.3°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Port Hedland, averaging 20 mm of rainfall. The wettest May on record was 1988 with 110 mm, while the driest were 2008, 2019 and 2023, among others at 0 mm.
Relative humidity in Port Hedland during May averages 46%. The most humid May was 1988 at 69%, and the least humid was 2023 at 30%.
May receives about 4.6 kWh/m²/day of solar energy in Port Hedland. The sunniest Mays were 2017 and 2019 at 5.3 kWh/m²/day, and the cloudiest was 2022 at 3.8.
Average wind speed in Port Hedland during May is 3.1 m/s. The windiest May was 2000 at 4.3 m/s, while the calmest was 2017 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.9°C | 25.2°C | 24.6°C | 24.8°C | 25.6°C | +0.7°C |
| Avg High | 31.5°C | 31.7°C | 31.5°C | 31.5°C | 32.1°C | +0.6°C |
| Avg Low | 18.1°C | 18.6°C | 17.8°C | 18.1°C | 19.1°C | +1°C |
| Avg Rain | 25 mm | 19 mm | 12 mm | 24 mm | 17 mm | -8 mm |
May temperatures in Port Hedland have risen by about 0.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 9.4°C (1982) to a record high of 39.2°C (1990).
Rainfall in May is one of the drier months, averaging 20 mm, with a wettest year of 110 mm.
One of the best times to visit Port Hedland
May is one of the best times to visit Port Hedland. Expect days averaging 31.6°C and nights around 18.3°C (mean 25°C) — cooler than Port Hedland's yearly average — with low rainfall (20 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 | 32.4°C | 25.7°C | 19.0°C | 37.0°C | 14.1°C | 2 mm | 36% | 3.6 m/s | 5 |
| 2024 | 32.9°C | 26.2°C | 19.5°C | 35.7°C | 15.5°C | 2 mm | 39% | 3.3 m/s | 5 |
| 2023 | 31.5°C | 24.5°C | 17.4°C | 35.2°C | 12.6°C | 0 mm | 30% | 3.7 m/s | 4.8 |
| 2022 | 31.6°C | 26.1°C | 20.6°C | 36.2°C | 14.3°C | 74 mm | 54% | 3.1 m/s | 3.8 |
| 2021 | 32.8°C | 26.4°C | 20.0°C | 37.3°C | 16.4°C | 7 mm | 44% | 3 m/s | 4.4 |
| 2020 | 31.6°C | 24.8°C | 18.1°C | 36.3°C | 13.6°C | 14 mm | 36% | 3.6 m/s | 4.9 |
| 2019 | 32.8°C | 24.9°C | 17.0°C | 36.3°C | 12.1°C | 0 mm | 35% | 3.1 m/s | 5.3 |
| 2018 | 32.3°C | 25.3°C | 18.3°C | 36.7°C | 13.4°C | 1 mm | 36% | 3.8 m/s | 5.1 |
| 2017 | 31.9°C | 24.3°C | 16.7°C | 33.9°C | 13.4°C | 1 mm | 50% | 2.5 m/s | 5.3 |
| 2016 | 32.6°C | 26.6°C | 20.6°C | 37.0°C | 15.2°C | 13 mm | 52% | 2.7 m/s | 4.6 |
| 2015 | 29.4°C | 23.3°C | 17.3°C | 34.0°C | 10.3°C | 80 mm | 56% | 3.5 m/s | 4 |
| 2014 | 32.6°C | 26.5°C | 20.4°C | 35.3°C | 15.8°C | 23 mm | 49% | 2.6 m/s | 4.4 |
| 2013 | 31.1°C | 25.0°C | 18.9°C | 37.2°C | 14.1°C | 61 mm | 53% | 3.2 m/s | 4.1 |
| 2012 | 31.4°C | 23.8°C | 16.3°C | 35.6°C | 11.2°C | 5 mm | 43% | 3.4 m/s | 5.1 |
| 2011 | 28.8°C | 22.8°C | 16.7°C | 32.3°C | 11.9°C | 35 mm | 53% | 3.9 m/s | 4 |
| 2010 | 32.3°C | 25.4°C | 18.4°C | 37.7°C | 13.3°C | 17 mm | 40% | 3.2 m/s | 4.8 |
| 2009 | 30.6°C | 24.1°C | 17.5°C | 35.2°C | 14.1°C | 10 mm | 40% | 3.5 m/s | 4.4 |
| 2008 | 33.3°C | 25.5°C | 17.7°C | 36.7°C | 15.3°C | 0 mm | 39% | 2.7 m/s | 5.1 |
| 2007 | 31.4°C | 24.4°C | 17.4°C | 35.0°C | 13.0°C | 0 mm | 54% | 2.8 m/s | 4.9 |
| 2006 | 30.4°C | 23.2°C | 16.1°C | 32.1°C | 12.8°C | 0 mm | 48% | 3.3 m/s | 4.7 |
| 2005 | 34.0°C | 27.1°C | 20.2°C | 37.4°C | 13.8°C | 25 mm | 41% | 2.8 m/s | 4.4 |
| 2004 | 29.4°C | 23.3°C | 17.2°C | 33.3°C | 12.0°C | 10 mm | 56% | 3.5 m/s | 4.7 |
| 2003 | 32.9°C | 26.1°C | 19.2°C | 35.8°C | 12.7°C | 1 mm | 41% | 2.9 m/s | 4.8 |
| 2002 | 34.7°C | 27.5°C | 20.4°C | 37.6°C | 14.0°C | 2 mm | 46% | 2.8 m/s | 5 |
| 2001 | 32.2°C | 25.3°C | 18.4°C | 35.7°C | 14.3°C | 8 mm | 43% | 2.8 m/s | 4.6 |
| 2000 ❄️ | 26.3°C | 19.9°C | 13.5°C | 32.2°C | 9.6°C | 67 mm | 65% | 4.3 m/s | 4.6 |
| 1999 | 30.9°C | 24.0°C | 17.2°C | 34.1°C | 11.7°C | 12 mm | 60% | 2.9 m/s | 4.7 |
| 1998 🔥 | 33.8°C | 27.5°C | 21.2°C | 38.8°C | 16.6°C | 12 mm | 49% | 2.7 m/s | 4.4 |
| 1997 | 29.7°C | 24.4°C | 19.1°C | 35.6°C | 12.7°C | 65 mm | 63% | 2.7 m/s | 4.2 |
| 1996 | 32.0°C | 24.5°C | 17.0°C | 35.3°C | 12.5°C | 1 mm | 45% | 2.9 m/s | 5 |
| 1995 | 30.7°C | 24.1°C | 17.4°C | 33.4°C | 12.8°C | 3 mm | 47% | 3.6 m/s | 4.6 |
| 1994 | 32.9°C | 25.5°C | 18.0°C | 36.6°C | 14.5°C | 0 mm | 33% | 3.3 m/s | 5.1 |
| 1993 | 30.0°C | 24.7°C | 19.3°C | 33.0°C | 15.3°C | 79 mm | 59% | 3.2 m/s | 4.3 |
| 1992 | 30.9°C | 25.4°C | 19.9°C | 34.2°C | 14.0°C | 11 mm | 51% | 2.8 m/s | 4 |
| 1991 | 33.2°C | 26.1°C | 19.1°C | 36.9°C | 15.4°C | 11 mm | 43% | 2.9 m/s | 4.7 |
| 1990 | 32.8°C | 25.5°C | 18.2°C | 39.2°C | 13.4°C | 1 mm | 41% | 3.1 m/s | 4.9 |
| 1989 | 31.3°C | 24.8°C | 18.3°C | 34.8°C | 14.3°C | 12 mm | 52% | 2.8 m/s | 4.9 |
| 1988 🌧️ | 28.5°C | 23.1°C | 17.6°C | 32.6°C | 12.0°C | 110 mm | 69% | 2.9 m/s | 3.9 |
| 1987 | 31.5°C | 25.2°C | 18.8°C | 36.6°C | 13.7°C | 5 mm | 32% | 3.9 m/s | 4.3 |
| 1986 | 32.2°C | 25.0°C | 17.7°C | 34.8°C | 13.3°C | 0 mm | 37% | 3.1 m/s | 4.9 |
| 1985 | 32.5°C | 25.3°C | 18.1°C | 36.7°C | 13.3°C | 2 mm | 37% | 3 m/s | 4.7 |
| 1984 | 32.7°C | 26.4°C | 20.1°C | 36.1°C | 16.8°C | 5 mm | 53% | 2.6 m/s | 4.5 |
| 1983 | 32.0°C | 24.4°C | 16.8°C | 34.6°C | 14.2°C | 0 mm | 39% | 2.9 m/s | — |
| 1982 | 31.6°C | 24.6°C | 17.6°C | 35.4°C | 9.4°C | 81 mm | 50% | 2.8 m/s | — |
| 1981 | 31.5°C | 24.9°C | 18.3°C | 36.3°C | 12.1°C | 11 mm | 44% | 3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 31.6°C with lows near 18.3°C (mean 25°C), based on 45 years of NASA POWER data.
May averages 20 mm of rainfall in Port Hedland, one of the drier months. The wettest on record was 110 mm in 1988.
The hottest May reached 39.2°C in 1990. The coldest dipped to 9.4°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.7°C. Daytime highs moved from 32.1°C to 32.2°C and overnight lows from 18.2°C to 19.3°C over the same span.
May is one of the cooler months of the year in Port Hedland and one of the drier months, so plan for around 31.6°C daytime highs and 18.3°C at night.
Not quite — May is the 4th coolest month in Port Hedland, averaging 25°C.
For May in Port Hedland, pack light, breathable clothing and sun protection, with typical highs of 31.6°C and lows of 18.3°C.
Relative humidity in May averages 46% — relatively dry.
Average wind speed in May is 3.1 m/s. The windiest May on record averaged 4.3 m/s (2000).
The wettest May on record was 1988 with 110 mm. On average, May sees 20 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 Port Hedland 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.
