May is close to Esperance's year-round average, with average highs near 18.9°C and lows around 14.8°C (mean 16.9°C). It is a relatively wet time of year, averaging 52 mm of rainfall and 73% relative humidity across the period.
May is close to Esperance's year-round average. Across 45 years of records, the warmest May in Esperance was 2002 — when the month averaged 18.3°C — while the coldest were 1987 and 2019 at 15.7°C. Typical May days reach 18.9°C with nights near 14.8°C. The long-term May temperature trend is broadly flat.
May is a relatively wet time of year in Esperance, averaging 52 mm of rainfall. The wettest May on record was 1989 with 96 mm, while the driest was 1983 at 13 mm.
Relative humidity in Esperance during May averages 73%. The most humid May was 1988 at 78%, and the least humid was 2020 at 68%.
May receives about 3 kWh/m²/day of solar energy in Esperance. The sunniest May was 2018 at 3.4 kWh/m²/day, and the cloudiest was 1997 at 2.5.
Average wind speed in Esperance during May is 5.3 m/s. The windiest Mays were 1981, 1984 and 2020 at 6.2 m/s, while the calmest were 1990 and 2000 at 4.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.5°C | 16.9°C | 17.0°C | 16.6°C | 17.2°C | +0.7°C |
| Avg High | 18.5°C | 18.9°C | 19.2°C | 18.6°C | 19.4°C | +0.9°C |
| Avg Low | 14.5°C | 14.9°C | 14.9°C | 14.7°C | 14.9°C | +0.4°C |
| Avg Rain | 59 mm | 58 mm | 45 mm | 56 mm | 38 mm | -21 mm |
May temperatures in Esperance have risen by about 0.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 10.1°C (1992) to a record high of 27.4°C (2002).
Rainfall in May is a relatively wet time of year, averaging 52 mm, with a wettest year of 96 mm.
A good time to visit Esperance
May is a good time to visit Esperance, with days averaging 18.9°C and nights around 14.8°C (mean 16.9°C, close to Esperance's yearly average) and moderate rainfall. February and January 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 | 20.0°C | 17.6°C | 15.2°C | 24.0°C | 13.4°C | 26 mm | 73% | 5.3 m/s | 3.2 |
| 2024 | 19.9°C | 17.5°C | 15.0°C | 22.9°C | 11.8°C | 38 mm | 75% | 5 m/s | 3.1 |
| 2023 | 18.7°C | 16.8°C | 14.9°C | 21.9°C | 13.0°C | 21 mm | 72% | 4.8 m/s | 3.1 |
| 2022 | 19.3°C | 17.1°C | 14.9°C | 23.8°C | 12.3°C | 43 mm | 72% | 5.5 m/s | 3.1 |
| 2021 | 19.4°C | 17.4°C | 15.3°C | 23.1°C | 11.8°C | 75 mm | 75% | 5.5 m/s | 2.7 |
| 2020 | 19.1°C | 16.7°C | 14.2°C | 25.2°C | 12.7°C | 28 mm | 68% | 6.2 m/s | 3.1 |
| 2019 | 17.7°C | 15.7°C | 13.7°C | 22.9°C | 11.2°C | 39 mm | 73% | 4.9 m/s | 3.1 |
| 2018 | 19.5°C | 16.9°C | 14.2°C | 24.8°C | 12.2°C | 21 mm | 69% | 5.7 m/s | 3.4 |
| 2017 | 18.7°C | 16.7°C | 14.7°C | 23.4°C | 12.3°C | 47 mm | 74% | 5.2 m/s | 3 |
| 2016 | 17.8°C | 15.9°C | 14.0°C | 22.6°C | 11.3°C | 59 mm | 74% | 5.6 m/s | 3.1 |
| 2015 | 17.6°C | 15.8°C | 14.1°C | 20.2°C | 10.5°C | 71 mm | 72% | 5.2 m/s | 2.9 |
| 2014 | 19.4°C | 17.6°C | 15.9°C | 21.6°C | 14.7°C | 70 mm | 76% | 5.4 m/s | 2.9 |
| 2013 | 18.7°C | 17.0°C | 15.3°C | 25.8°C | 12.9°C | 87 mm | 76% | 5.2 m/s | 2.7 |
| 2012 | 19.1°C | 17.0°C | 14.9°C | 22.5°C | 11.0°C | 29 mm | 73% | 5.2 m/s | 3.1 |
| 2011 | 19.0°C | 17.2°C | 15.5°C | 22.4°C | 12.3°C | 47 mm | 73% | 4.9 m/s | 2.7 |
| 2010 | 18.5°C | 16.3°C | 14.2°C | 22.6°C | 11.0°C | 91 mm | 75% | 5.1 m/s | 3 |
| 2009 | 19.0°C | 16.8°C | 14.7°C | 24.6°C | 13.2°C | 34 mm | 74% | 4.9 m/s | 3.3 |
| 2008 | 20.2°C | 18.0°C | 15.8°C | 24.2°C | 14.3°C | 43 mm | 73% | 4.9 m/s | 3.2 |
| 2007 | 17.7°C | 16.0°C | 14.4°C | 21.3°C | 12.4°C | 37 mm | 76% | 5.9 m/s | 2.9 |
| 2006 | 18.2°C | 16.2°C | 14.2°C | 21.9°C | 12.5°C | 40 mm | 76% | 5.2 m/s | 3 |
| 2005 | 19.9°C | 17.7°C | 15.5°C | 24.1°C | 12.3°C | 46 mm | 78% | 4.8 m/s | 2.8 |
| 2004 | 18.7°C | 16.7°C | 14.8°C | 25.2°C | 11.9°C | 70 mm | 71% | 5 m/s | 2.8 |
| 2003 | 20.0°C | 17.2°C | 14.5°C | 24.3°C | 10.8°C | 65 mm | 73% | 5.4 m/s | 3.1 |
| 2002 🔥 | 20.6°C | 18.3°C | 16.0°C | 27.4°C | 13.2°C | 16 mm | 72% | 4.9 m/s | 3.1 |
| 2001 | 19.3°C | 17.0°C | 14.8°C | 25.0°C | 10.8°C | 47 mm | 73% | 5.1 m/s | 2.9 |
| 2000 | 18.2°C | 16.2°C | 14.3°C | 22.6°C | 11.8°C | 50 mm | 74% | 4.7 m/s | 3 |
| 1999 | 19.9°C | 17.8°C | 15.8°C | 25.4°C | 12.8°C | 52 mm | 74% | 5.3 m/s | 2.8 |
| 1998 | 19.6°C | 17.6°C | 15.5°C | 25.0°C | 12.4°C | 34 mm | 73% | 5.2 m/s | 2.7 |
| 1997 | 18.3°C | 16.6°C | 15.0°C | 22.1°C | 12.7°C | 93 mm | 76% | 5.7 m/s | 2.5 |
| 1996 | 19.6°C | 17.2°C | 14.9°C | 24.3°C | 12.4°C | 26 mm | 70% | 4.9 m/s | 2.8 |
| 1995 | 17.8°C | 15.8°C | 13.9°C | 22.4°C | 11.7°C | 73 mm | 73% | 5.5 m/s | 3.1 |
| 1994 | 19.6°C | 17.5°C | 15.3°C | 24.5°C | 11.1°C | 44 mm | 73% | 5.5 m/s | 3.1 |
| 1993 | 18.0°C | 16.0°C | 13.9°C | 21.9°C | 11.0°C | 76 mm | 76% | 4.8 m/s | 2.8 |
| 1992 | 17.7°C | 16.1°C | 14.4°C | 22.4°C | 10.1°C | 74 mm | 77% | 5 m/s | 3.1 |
| 1991 | 19.4°C | 17.2°C | 15.1°C | 24.4°C | 13.5°C | 22 mm | 71% | 5 m/s | 2.9 |
| 1990 | 18.7°C | 17.0°C | 15.2°C | 25.0°C | 12.2°C | 80 mm | 75% | 4.7 m/s | 2.8 |
| 1989 🌧️ | 18.7°C | 16.9°C | 15.0°C | 22.6°C | 12.5°C | 96 mm | 74% | 5.3 m/s | 2.8 |
| 1988 | 18.7°C | 16.8°C | 14.9°C | 21.3°C | 13.3°C | 83 mm | 78% | 6 m/s | 2.9 |
| 1987 ❄️ | 17.5°C | 15.7°C | 13.9°C | 22.4°C | 11.6°C | 64 mm | 73% | 5.6 m/s | 2.9 |
| 1986 | 18.2°C | 16.2°C | 14.2°C | 20.1°C | 11.0°C | 80 mm | 74% | 5.3 m/s | 2.9 |
| 1985 | 18.9°C | 16.5°C | 14.1°C | 24.0°C | 12.3°C | 17 mm | 69% | 5.2 m/s | 3.2 |
| 1984 | 18.7°C | 16.5°C | 14.3°C | 22.4°C | 12.3°C | 45 mm | 72% | 6.2 m/s | 3 |
| 1983 | 19.7°C | 17.3°C | 14.8°C | 26.0°C | 12.0°C | 13 mm | 70% | 5.2 m/s | — |
| 1982 | 17.9°C | 16.1°C | 14.3°C | 21.9°C | 12.0°C | 41 mm | 73% | 4.8 m/s | — |
| 1981 | 18.5°C | 16.6°C | 14.8°C | 23.3°C | 11.2°C | 94 mm | 71% | 6.2 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 18.9°C with lows near 14.8°C (mean 16.9°C), based on 45 years of NASA POWER data.
May averages 52 mm of rainfall in Esperance, a relatively wet time of year. The wettest on record was 96 mm in 1989.
The hottest May reached 27.4°C in 2002. The coldest dipped to 10.1°C in 1992.
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 18.7°C to 19.5°C and overnight lows from 14.5°C to 15.1°C over the same span.
May is close to Esperance's year-round average and a relatively wet time of year, so plan for around 18.9°C daytime highs and 14.8°C at night.
Not quite — May is the 6th coolest month in Esperance, averaging 16.9°C.
For May in Esperance, pack light layers you can adjust through the day, with typical highs of 18.9°C and lows of 14.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 73% — moderately humid.
Average wind speed in May is 5.3 m/s. The windiest May on record averaged 6.2 m/s (1981).
The wettest May on record was 1989 with 96 mm. On average, May sees 52 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 Esperance 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.
