July is one of the cooler months of the year in Devonport, with average highs near 12°C and lows around 9°C (mean 10.5°C). It is a relatively wet time of year, averaging 108 mm of rainfall and 82% relative humidity across the period.
July is one of the cooler months of the year in Devonport. Across 45 years of records, the warmest July in Devonport was 2023 — when the month averaged 12°C — while the coldest was 1995 at 9.1°C. Typical July days reach 12°C with nights near 9°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Devonport, averaging 108 mm of rainfall. The wettest July on record was 2013 with 201 mm, while the driest was 2020 at 22 mm.
Relative humidity in Devonport during July averages 82%. The most humid July was 1993 at 85%, and the least humid was 1982 at 78%.
July receives about 1.7 kWh/m²/day of solar energy in Devonport. The sunniest Julys were 1985, 2020 and 2024 at 1.9 kWh/m²/day, and the cloudiest was 1984 at 1.4.
Average wind speed in Devonport during July is 4.1 m/s. The windiest July was 2016 at 5.3 m/s, while the calmest was 1982 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.1°C | 10.2°C | 10.7°C | 10.8°C | 11.0°C | +0.9°C |
| Avg High | 11.5°C | 11.7°C | 12.3°C | 12.2°C | 12.4°C | +0.9°C |
| Avg Low | 8.6°C | 8.7°C | 9.2°C | 9.3°C | 9.5°C | +0.9°C |
| Avg Rain | 117 mm | 105 mm | 110 mm | 116 mm | 84 mm | -32 mm |
July temperatures in Devonport have risen by about 1.3°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 3.4°C (1986) to a record high of 15.2°C (2001).
Rainfall in July is a relatively wet time of year, averaging 108 mm, with a wettest year of 201 mm.
A quieter season to visit Devonport
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Devonport. That said, July — with days averaging 12°C and nights around 9°C (mean 10.5°C) and higher rainfall (108 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 12.7°C | 11.3°C | 9.8°C | 14.1°C | 6.7°C | 109 mm | 79% | 4.1 m/s | 1.8 |
| 2024 | 12.0°C | 10.5°C | 8.9°C | 14.2°C | 6.0°C | 115 mm | 79% | 3.6 m/s | 1.9 |
| 2023 🔥 | 13.2°C | 12.0°C | 10.7°C | 14.3°C | 8.2°C | 70 mm | 82% | 4.9 m/s | 1.7 |
| 2022 | 12.3°C | 10.7°C | 9.1°C | 13.7°C | 6.1°C | 48 mm | 81% | 3.6 m/s | 1.8 |
| 2021 | 12.2°C | 10.8°C | 9.5°C | 14.0°C | 7.7°C | 142 mm | 85% | 4.2 m/s | 1.5 |
| 2020 | 12.0°C | 10.4°C | 8.7°C | 13.7°C | 6.5°C | 22 mm | 82% | 3.3 m/s | 1.9 |
| 2019 | 12.5°C | 11.0°C | 9.5°C | 14.2°C | 6.3°C | 107 mm | 82% | 5 m/s | 1.7 |
| 2018 | 12.3°C | 10.9°C | 9.5°C | 13.8°C | 6.8°C | 169 mm | 81% | 5 m/s | 1.5 |
| 2017 | 11.9°C | 10.4°C | 9.0°C | 13.2°C | 7.5°C | 105 mm | 79% | 4.1 m/s | 1.6 |
| 2016 | 12.3°C | 10.9°C | 9.6°C | 14.0°C | 6.4°C | 123 mm | 83% | 5.3 m/s | 1.5 |
| 2015 | 11.5°C | 10.0°C | 8.4°C | 13.5°C | 5.6°C | 77 mm | 81% | 4.4 m/s | 1.6 |
| 2014 | 13.0°C | 11.5°C | 10.1°C | 14.3°C | 7.8°C | 107 mm | 82% | 4.2 m/s | 1.5 |
| 2013 🌧️ | 12.7°C | 11.3°C | 9.9°C | 14.6°C | 7.0°C | 201 mm | 84% | 4 m/s | 1.5 |
| 2012 | 12.1°C | 10.6°C | 9.1°C | 13.5°C | 6.1°C | 79 mm | 83% | 3.2 m/s | 1.7 |
| 2011 | 11.6°C | 10.0°C | 8.5°C | 13.0°C | 5.9°C | 89 mm | 83% | 4.6 m/s | 1.7 |
| 2010 | 12.5°C | 11.1°C | 9.7°C | 14.6°C | 6.7°C | 104 mm | 84% | 3.5 m/s | 1.8 |
| 2009 | 12.0°C | 10.5°C | 9.0°C | 13.8°C | 7.1°C | 156 mm | 82% | 4.4 m/s | 1.7 |
| 2008 | 11.9°C | 10.4°C | 8.9°C | 13.6°C | 7.2°C | 93 mm | 79% | 4 m/s | 1.7 |
| 2007 | 11.9°C | 10.4°C | 8.8°C | 14.0°C | 6.7°C | 101 mm | 82% | 3.7 m/s | 1.8 |
| 2006 | 12.1°C | 10.5°C | 8.9°C | 13.9°C | 6.2°C | 101 mm | 83% | 4.1 m/s | 1.7 |
| 2005 | 12.8°C | 11.4°C | 10.1°C | 14.6°C | 7.1°C | 106 mm | 83% | 4.5 m/s | 1.7 |
| 2004 | 11.5°C | 9.9°C | 8.4°C | 13.1°C | 5.6°C | 101 mm | 82% | 4.3 m/s | 1.7 |
| 2003 | 12.4°C | 10.7°C | 9.1°C | 14.6°C | 6.9°C | 106 mm | 82% | 4.2 m/s | 1.6 |
| 2002 | 12.8°C | 11.2°C | 9.6°C | 14.3°C | 5.7°C | 100 mm | 83% | 4.7 m/s | 1.5 |
| 2001 | 12.9°C | 11.4°C | 9.8°C | 15.2°C | 7.3°C | 60 mm | 82% | 3.5 m/s | 1.7 |
| 2000 | 12.5°C | 11.0°C | 9.5°C | 14.6°C | 6.5°C | 172 mm | 82% | 4 m/s | 1.6 |
| 1999 | 12.5°C | 11.1°C | 9.7°C | 13.8°C | 7.1°C | 59 mm | 83% | 4.2 m/s | 1.6 |
| 1998 | 12.0°C | 10.4°C | 8.8°C | 13.3°C | 5.1°C | 130 mm | 83% | 3.7 m/s | 1.7 |
| 1997 | 11.5°C | 9.9°C | 8.3°C | 13.6°C | 5.1°C | 43 mm | 80% | 4 m/s | 1.7 |
| 1996 | 11.2°C | 9.8°C | 8.4°C | 12.6°C | 5.1°C | 166 mm | 85% | 3.5 m/s | 1.6 |
| 1995 ❄️ | 10.7°C | 9.1°C | 7.6°C | 13.1°C | 5.9°C | 129 mm | 83% | 3.7 m/s | 1.6 |
| 1994 | 11.9°C | 10.3°C | 8.7°C | 14.5°C | 6.1°C | 73 mm | 83% | 3.9 m/s | 1.7 |
| 1993 | 12.2°C | 10.9°C | 9.6°C | 13.9°C | 5.6°C | 119 mm | 85% | 4.1 m/s | 1.5 |
| 1992 | 11.7°C | 10.3°C | 8.8°C | 14.2°C | 6.2°C | 108 mm | 82% | 4.5 m/s | 1.7 |
| 1991 | 11.8°C | 10.2°C | 8.6°C | 14.7°C | 4.8°C | 97 mm | 83% | 3.9 m/s | 1.7 |
| 1990 | 11.7°C | 10.2°C | 8.6°C | 13.4°C | 4.9°C | 127 mm | 84% | 4.4 m/s | 1.6 |
| 1989 | 11.6°C | 10.3°C | 9.1°C | 13.6°C | 5.7°C | 143 mm | 82% | 4 m/s | 1.8 |
| 1988 | 12.9°C | 11.4°C | 9.9°C | 14.6°C | 6.5°C | 134 mm | 83% | 4.5 m/s | 1.7 |
| 1987 | 11.4°C | 9.9°C | 8.4°C | 13.9°C | 5.8°C | 174 mm | 84% | 3.7 m/s | 1.7 |
| 1986 | 11.4°C | 9.8°C | 8.3°C | 13.2°C | 3.4°C | 125 mm | 85% | 4.3 m/s | 1.6 |
| 1985 | 11.3°C | 9.8°C | 8.4°C | 14.1°C | 4.8°C | 72 mm | 79% | 3.9 m/s | 1.9 |
| 1984 | 11.4°C | 9.9°C | 8.5°C | 13.6°C | 5.4°C | 127 mm | 82% | 3.6 m/s | 1.4 |
| 1983 | 11.4°C | 10.0°C | 8.5°C | 13.0°C | 5.5°C | 73 mm | 81% | 3.4 m/s | — |
| 1982 | 11.0°C | 9.5°C | 7.9°C | 13.1°C | 4.6°C | 61 mm | 78% | 3.1 m/s | — |
| 1981 | 11.5°C | 10.0°C | 8.6°C | 13.4°C | 6.1°C | 139 mm | 83% | 4.3 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 12°C with lows near 9°C (mean 10.5°C), based on 45 years of NASA POWER data.
July averages 108 mm of rainfall in Devonport, a relatively wet time of year. The wettest on record was 201 mm in 2013.
The hottest July reached 15.2°C in 2001. The coldest dipped to 3.4°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.3°C. Daytime highs moved from 11.3°C to 12.5°C and overnight lows from 8.4°C to 9.6°C over the same span.
July is one of the cooler months of the year in Devonport and a relatively wet time of year, so plan for around 12°C daytime highs and 9°C at night.
Not quite — July is the 2nd coolest month in Devonport, averaging 10.5°C.
For July in Devonport, pack light layers you can adjust through the day, with typical highs of 12°C and lows of 9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 82% — quite humid.
Average wind speed in July is 4.1 m/s. The windiest July on record averaged 5.3 m/s (2016).
The wettest July on record was 2013 with 201 mm. On average, July sees 108 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 July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
