July is one of the cooler months of the year in Waitakere, with average highs near 13.9°C and lows around 11.7°C (mean 12.8°C). It is a relatively wet time of year, averaging 135 mm of rainfall and 81% relative humidity across the period.
July is one of the cooler months of the year in Waitakere. Across 45 years of records, the warmest July in Waitakere was 1998 — when the month averaged 14.6°C — while the coldest was 1983 at 11.5°C. Typical July days reach 13.9°C with nights near 11.7°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Waitakere, averaging 135 mm of rainfall. The wettest July on record was 1998 with 296 mm, while the driest was 1993 at 32 mm.
Relative humidity in Waitakere during July averages 81%. The most humid July was 2007 at 84%, and the least humid was 1986 at 77%.
July receives about 2.2 kWh/m²/day of solar energy in Waitakere. The sunniest July was 1989 at 2.4 kWh/m²/day, and the cloudiest was 1998 at 1.7.
Average wind speed in Waitakere during July is 6.1 m/s. The windiest July was 2000 at 7.5 m/s, while the calmest was 1993 at 4.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.5°C | 12.6°C | 12.8°C | 12.9°C | 13.5°C | +1°C |
| Avg High | 13.6°C | 13.7°C | 14.0°C | 14.0°C | 14.6°C | +1°C |
| Avg Low | 11.4°C | 11.5°C | 11.6°C | 11.8°C | 12.5°C | +1.1°C |
| Avg Rain | 126 mm | 139 mm | 130 mm | 123 mm | 171 mm | +45 mm |
July temperatures in Waitakere have risen by about 1.1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 7.5°C (1983) to a record high of 19°C (1998).
Rainfall in July is a relatively wet time of year, averaging 135 mm, with a wettest year of 296 mm.
A quieter season to visit Waitakere
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Waitakere. That said, July — with days averaging 13.9°C and nights around 11.7°C (mean 12.8°C) and higher rainfall (135 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 | 14.8°C | 13.8°C | 12.7°C | 17.9°C | 9.4°C | 244 mm | 82% | 5.8 m/s | 2.2 |
| 2024 | 14.4°C | 13.3°C | 12.2°C | 16.1°C | 9.1°C | 140 mm | 82% | 5.1 m/s | 2.3 |
| 2023 | 14.3°C | 13.4°C | 12.5°C | 15.5°C | 10.5°C | 97 mm | 81% | 7.1 m/s | 2.2 |
| 2022 | 15.1°C | 14.1°C | 13.0°C | 17.9°C | 10.2°C | 247 mm | 83% | 6.9 m/s | 2 |
| 2021 | 14.3°C | 13.2°C | 12.0°C | 16.9°C | 9.6°C | 138 mm | 81% | 6.2 m/s | 2.3 |
| 2020 | 14.4°C | 13.4°C | 12.4°C | 16.1°C | 10.8°C | 157 mm | 81% | 6.3 m/s | 2 |
| 2019 | 14.9°C | 13.7°C | 12.6°C | 17.7°C | 10.4°C | 155 mm | 84% | 5.6 m/s | 2.2 |
| 2018 | 14.4°C | 13.2°C | 12.1°C | 16.2°C | 10.0°C | 121 mm | 80% | 5.4 m/s | 2.3 |
| 2017 | 13.8°C | 12.8°C | 11.7°C | 16.7°C | 8.3°C | 153 mm | 82% | 5.9 m/s | 2.1 |
| 2016 | 14.4°C | 13.4°C | 12.4°C | 16.7°C | 9.9°C | 131 mm | 79% | 7.1 m/s | 2.3 |
| 2015 | 13.4°C | 12.3°C | 11.2°C | 15.5°C | 7.9°C | 141 mm | 80% | 6.3 m/s | 2.3 |
| 2014 | 13.7°C | 12.6°C | 11.5°C | 15.6°C | 8.7°C | 104 mm | 80% | 6.8 m/s | 2.2 |
| 2013 | 13.7°C | 12.7°C | 11.8°C | 15.6°C | 8.9°C | 66 mm | 80% | 4.7 m/s | 2.2 |
| 2012 | 14.1°C | 12.8°C | 11.5°C | 16.0°C | 9.3°C | 152 mm | 82% | 5.3 m/s | 2.1 |
| 2011 | 13.9°C | 12.8°C | 11.7°C | 15.5°C | 8.3°C | 128 mm | 80% | 7.4 m/s | 2.1 |
| 2010 | 13.4°C | 12.3°C | 11.2°C | 15.4°C | 8.5°C | 80 mm | 80% | 5.5 m/s | 2.3 |
| 2009 | 13.5°C | 12.3°C | 11.1°C | 15.3°C | 8.5°C | 152 mm | 81% | 6.2 m/s | 2.2 |
| 2008 | 14.1°C | 12.9°C | 11.8°C | 16.3°C | 8.9°C | 219 mm | 82% | 7.2 m/s | 1.9 |
| 2007 | 14.3°C | 13.1°C | 11.9°C | 16.2°C | 9.0°C | 175 mm | 84% | 6.5 m/s | 1.9 |
| 2006 | 13.6°C | 12.2°C | 10.9°C | 15.2°C | 7.9°C | 89 mm | 81% | 5.3 m/s | 2.3 |
| 2005 | 14.5°C | 13.5°C | 12.5°C | 15.9°C | 10.3°C | 150 mm | 83% | 6.2 m/s | 2 |
| 2004 | 13.1°C | 12.0°C | 10.8°C | 15.8°C | 7.8°C | 91 mm | 81% | 6.2 m/s | 2.3 |
| 2003 | 13.7°C | 12.5°C | 11.3°C | 15.6°C | 8.8°C | 104 mm | 78% | 5.7 m/s | 2.1 |
| 2002 | 14.2°C | 13.1°C | 11.9°C | 16.0°C | 9.6°C | 123 mm | 80% | 6.9 m/s | 2.2 |
| 2001 | 13.5°C | 12.3°C | 11.1°C | 16.3°C | 8.4°C | 96 mm | 78% | 5.8 m/s | 2.2 |
| 2000 | 15.1°C | 13.9°C | 12.8°C | 16.9°C | 10.7°C | 101 mm | 81% | 7.5 m/s | 2.1 |
| 1999 | 14.4°C | 13.3°C | 12.2°C | 17.6°C | 9.3°C | 100 mm | 80% | 5.8 m/s | 2.1 |
| 1998 🔥 🌧️ | 15.7°C | 14.6°C | 13.5°C | 19.0°C | 11.6°C | 296 mm | 83% | 6.9 m/s | 1.7 |
| 1997 | 13.1°C | 12.1°C | 11.1°C | 15.8°C | 7.9°C | 51 mm | 79% | 5.3 m/s | 2.2 |
| 1996 | 13.6°C | 12.5°C | 11.4°C | 16.0°C | 8.0°C | 165 mm | 82% | 6.1 m/s | 2.1 |
| 1995 | 13.4°C | 12.3°C | 11.2°C | 15.1°C | 7.9°C | 169 mm | 80% | 7 m/s | 2 |
| 1994 | 13.2°C | 12.1°C | 10.9°C | 15.5°C | 7.8°C | 66 mm | 78% | 6.9 m/s | 2.2 |
| 1993 | 13.2°C | 11.9°C | 10.7°C | 15.0°C | 8.1°C | 32 mm | 79% | 4.5 m/s | 2.2 |
| 1992 | 13.6°C | 12.5°C | 11.4°C | 15.5°C | 9.4°C | 185 mm | 83% | 7.3 m/s | 2.1 |
| 1991 | 13.2°C | 12.0°C | 10.9°C | 14.8°C | 8.4°C | 158 mm | 81% | 5.7 m/s | 2.1 |
| 1990 | 13.9°C | 12.9°C | 11.8°C | 15.3°C | 9.2°C | 171 mm | 82% | 6.3 m/s | 2.2 |
| 1989 | 13.6°C | 12.3°C | 11.0°C | 16.0°C | 8.6°C | 124 mm | 77% | 5 m/s | 2.4 |
| 1988 | 14.0°C | 13.1°C | 12.1°C | 16.3°C | 9.2°C | 188 mm | 81% | 7.2 m/s | 2.1 |
| 1987 | 13.5°C | 12.6°C | 11.6°C | 15.5°C | 10.0°C | 88 mm | 79% | 6.1 m/s | 2.2 |
| 1986 | 13.1°C | 12.0°C | 10.9°C | 15.2°C | 8.1°C | 180 mm | 77% | 6.4 m/s | 2.3 |
| 1985 | 14.3°C | 13.4°C | 12.4°C | 16.2°C | 9.8°C | 157 mm | 83% | 5.9 m/s | 2.2 |
| 1984 | 14.1°C | 13.0°C | 11.8°C | 16.7°C | 8.6°C | 127 mm | 84% | 5.7 m/s | 2 |
| 1983 ❄️ | 12.6°C | 11.5°C | 10.3°C | 15.6°C | 7.5°C | 56 mm | 80% | 5.1 m/s | — |
| 1982 | 13.1°C | 12.0°C | 11.0°C | 15.6°C | 8.1°C | 80 mm | 78% | 6 m/s | — |
| 1981 | 13.7°C | 12.6°C | 11.6°C | 16.2°C | 9.1°C | 134 mm | 81% | 6.3 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 13.9°C with lows near 11.7°C (mean 12.8°C), based on 45 years of NASA POWER data.
July averages 135 mm of rainfall in Waitakere, a relatively wet time of year. The wettest on record was 296 mm in 1998.
The hottest July reached 19°C in 1998. The coldest dipped to 7.5°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.1°C. Daytime highs moved from 13.6°C to 14.6°C and overnight lows from 11.4°C to 12.5°C over the same span.
July is one of the cooler months of the year in Waitakere and a relatively wet time of year, so plan for around 13.9°C daytime highs and 11.7°C at night.
Not quite — July is the 2nd coolest month in Waitakere, averaging 12.8°C.
For July in Waitakere, pack light layers you can adjust through the day, with typical highs of 13.9°C and lows of 11.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 81% — quite humid.
Average wind speed in July is 6.1 m/s. The windiest July on record averaged 7.5 m/s (2000).
The wettest July on record was 1998 with 296 mm. On average, July sees 135 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 Waitakere 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.
