May is close to Devonport's year-round average, with average highs near 14.8°C and lows around 11.4°C (mean 13.1°C). It is about average for rainfall, averaging 82 mm of rainfall and 81% relative humidity across the period.
May is close to Devonport's year-round average. Across 45 years of records, the warmest May in Devonport was 2007 — when the month averaged 14.4°C — while the coldest was 2006 at 11.6°C. Typical May days reach 14.8°C with nights near 11.4°C. The long-term May temperature trend is broadly flat.
May is about average for rainfall in Devonport, averaging 82 mm of rainfall. The wettest May on record was 2007 with 187 mm, while the driest was 1991 at 11 mm.
Relative humidity in Devonport during May averages 81%. The most humid May was 1999 at 86%, and the least humid was 2002 at 76%.
May receives about 2 kWh/m²/day of solar energy in Devonport. The sunniest Mays were 2024 and 2025 at 2.3 kWh/m²/day, and the cloudiest were 1988, 1999 and 2016 at 1.7.
Average wind speed in Devonport during May is 3.9 m/s. The windiest May was 2016 at 5.3 m/s, while the calmest was 1991 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.1°C | 12.7°C | 13.2°C | 13.1°C | 13.3°C | +0.2°C |
| Avg High | 14.7°C | 14.4°C | 14.9°C | 14.8°C | 15.0°C | +0.3°C |
| Avg Low | 11.5°C | 11.0°C | 11.4°C | 11.5°C | 11.5°C | 0°C |
| Avg Rain | 103 mm | 81 mm | 64 mm | 97 mm | 59 mm | -44 mm |
May temperatures in Devonport have risen by about 0.4°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 6.4°C (1982) to a record high of 19.3°C (2002).
Rainfall in May is about average for rainfall, averaging 82 mm, with a wettest year of 187 mm.
A good time to visit Devonport
May is a good time to visit Devonport, with days averaging 14.8°C and nights around 11.4°C (mean 13.1°C, close to Devonport's yearly average) and higher 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 | 16.1°C | 14.2°C | 12.2°C | 18.8°C | 7.8°C | 42 mm | 76% | 3.8 m/s | 2.3 |
| 2024 | 15.4°C | 13.7°C | 11.9°C | 17.4°C | 8.1°C | 44 mm | 78% | 3.8 m/s | 2.3 |
| 2023 | 14.6°C | 12.8°C | 11.0°C | 16.9°C | 7.8°C | 71 mm | 77% | 4.4 m/s | 2.1 |
| 2022 | 14.9°C | 13.6°C | 12.3°C | 18.1°C | 8.7°C | 82 mm | 80% | 4 m/s | 1.9 |
| 2021 | 14.7°C | 12.8°C | 10.9°C | 17.7°C | 7.6°C | 59 mm | 79% | 4 m/s | 2.1 |
| 2020 | 14.2°C | 12.5°C | 10.9°C | 16.2°C | 8.3°C | 57 mm | 82% | 4 m/s | 1.9 |
| 2019 | 15.1°C | 13.5°C | 11.8°C | 17.5°C | 8.1°C | 94 mm | 82% | 4.1 m/s | 1.9 |
| 2018 | 15.1°C | 13.3°C | 11.6°C | 17.4°C | 8.8°C | 85 mm | 79% | 4.2 m/s | 2 |
| 2017 | 15.1°C | 13.4°C | 11.6°C | 16.8°C | 8.9°C | 106 mm | 80% | 3.9 m/s | 1.9 |
| 2016 | 15.3°C | 13.6°C | 11.8°C | 17.7°C | 8.7°C | 126 mm | 80% | 5.3 m/s | 1.7 |
| 2015 | 14.2°C | 12.6°C | 11.0°C | 16.7°C | 7.8°C | 104 mm | 82% | 4.7 m/s | 1.9 |
| 2014 | 15.3°C | 13.7°C | 12.1°C | 17.6°C | 8.2°C | 65 mm | 82% | 3.8 m/s | 1.8 |
| 2013 | 14.4°C | 12.9°C | 11.4°C | 17.8°C | 9.1°C | 134 mm | 81% | 3.5 m/s | 2 |
| 2012 | 14.9°C | 13.1°C | 11.3°C | 17.3°C | 8.7°C | 137 mm | 83% | 4.2 m/s | 1.8 |
| 2011 | 13.9°C | 12.1°C | 10.4°C | 15.9°C | 7.9°C | 42 mm | 80% | 3.1 m/s | 2.1 |
| 2010 | 14.9°C | 13.2°C | 11.5°C | 17.6°C | 7.8°C | 72 mm | 79% | 3.9 m/s | 2 |
| 2009 | 14.8°C | 13.1°C | 11.3°C | 17.0°C | 8.7°C | 45 mm | 81% | 4 m/s | 2.1 |
| 2008 | 14.9°C | 13.3°C | 11.8°C | 16.7°C | 8.5°C | 72 mm | 82% | 3.5 m/s | 1.8 |
| 2007 🔥 🌧️ | 16.1°C | 14.4°C | 12.7°C | 17.8°C | 9.1°C | 187 mm | 83% | 4.9 m/s | 1.8 |
| 2006 ❄️ | 13.6°C | 11.6°C | 9.6°C | 15.6°C | 7.3°C | 64 mm | 80% | 4 m/s | 2 |
| 2005 | 14.9°C | 13.1°C | 11.3°C | 17.3°C | 8.4°C | 38 mm | 79% | 3.9 m/s | 2.1 |
| 2004 | 14.2°C | 12.3°C | 10.4°C | 15.6°C | 7.5°C | 63 mm | 81% | 4.3 m/s | 1.9 |
| 2003 | 15.6°C | 13.9°C | 12.2°C | 17.6°C | 7.3°C | 38 mm | 81% | 3.6 m/s | 1.9 |
| 2002 | 15.6°C | 13.6°C | 11.7°C | 19.3°C | 8.7°C | 33 mm | 76% | 3 m/s | 2.1 |
| 2001 | 14.8°C | 13.1°C | 11.5°C | 17.2°C | 8.4°C | 26 mm | 76% | 3 m/s | 2.1 |
| 2000 | 14.9°C | 13.3°C | 11.8°C | 17.1°C | 7.2°C | 71 mm | 79% | 5 m/s | 1.8 |
| 1999 | 15.3°C | 13.9°C | 12.5°C | 17.9°C | 8.5°C | 141 mm | 86% | 4 m/s | 1.7 |
| 1998 | 14.1°C | 12.5°C | 10.8°C | 15.9°C | 8.3°C | 53 mm | 82% | 3.7 m/s | 1.9 |
| 1997 | 13.9°C | 12.3°C | 10.7°C | 17.5°C | 7.6°C | 165 mm | 82% | 3.4 m/s | 1.9 |
| 1996 | 14.3°C | 12.6°C | 10.8°C | 17.8°C | 7.7°C | 19 mm | 81% | 3.8 m/s | 2.1 |
| 1995 | 13.7°C | 12.1°C | 10.5°C | 16.1°C | 7.9°C | 58 mm | 83% | 3.2 m/s | 2.1 |
| 1994 | 13.9°C | 12.2°C | 10.4°C | 16.3°C | 7.2°C | 94 mm | 79% | 5.1 m/s | 1.9 |
| 1993 | 14.8°C | 13.1°C | 11.3°C | 17.8°C | 7.5°C | 81 mm | 81% | 3.8 m/s | 2 |
| 1992 | 14.3°C | 12.8°C | 11.3°C | 17.5°C | 8.9°C | 140 mm | 83% | 3.7 m/s | 2 |
| 1991 | 14.8°C | 12.9°C | 11.0°C | 16.4°C | 9.0°C | 11 mm | 82% | 2.8 m/s | 2.1 |
| 1990 | 14.7°C | 12.8°C | 11.0°C | 18.5°C | 8.0°C | 51 mm | 80% | 4 m/s | 2.1 |
| 1989 | 15.2°C | 13.5°C | 11.9°C | 18.0°C | 7.2°C | 104 mm | 79% | 3.9 m/s | 2 |
| 1988 | 15.6°C | 14.2°C | 12.8°C | 19.0°C | 10.1°C | 125 mm | 84% | 3.8 m/s | 1.7 |
| 1987 | 14.5°C | 12.8°C | 11.2°C | 17.1°C | 7.7°C | 101 mm | 84% | 4 m/s | 2 |
| 1986 | 14.1°C | 12.5°C | 10.9°C | 17.6°C | 8.8°C | 149 mm | 82% | 3.4 m/s | 2.1 |
| 1985 | 14.7°C | 13.1°C | 11.5°C | 18.2°C | 8.0°C | 145 mm | 84% | 3.5 m/s | 2 |
| 1984 | 14.5°C | 12.9°C | 11.3°C | 17.0°C | 8.8°C | 62 mm | 84% | 3.6 m/s | 2.1 |
| 1983 | 14.7°C | 13.1°C | 11.6°C | 16.8°C | 8.0°C | 81 mm | 83% | 4 m/s | — |
| 1982 | 14.6°C | 12.8°C | 11.1°C | 17.4°C | 6.4°C | 103 mm | 82% | 4.5 m/s | — |
| 1981 | 14.7°C | 13.1°C | 11.6°C | 17.3°C | 7.6°C | 58 mm | 81% | 3.7 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.8°C with lows near 11.4°C (mean 13.1°C), based on 45 years of NASA POWER data.
May averages 82 mm of rainfall in Devonport, about average for rainfall. The wettest on record was 187 mm in 2007.
The hottest May reached 19.3°C in 2002. The coldest dipped to 6.4°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.4°C. Daytime highs moved from 14.6°C to 15.1°C and overnight lows from 11.4°C to 11.7°C over the same span.
May is close to Devonport's year-round average and about average for rainfall, so plan for around 14.8°C daytime highs and 11.4°C at night.
Not quite — May is the 6th coolest month in Devonport, averaging 13.1°C.
For May in Devonport, pack light layers you can adjust through the day, with typical highs of 14.8°C and lows of 11.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 81% — quite humid.
Average wind speed in May is 3.9 m/s. The windiest May on record averaged 5.3 m/s (2016).
The wettest May on record was 2007 with 187 mm. On average, May sees 82 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 Devonport 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.
