July is one of the cooler months of the year in Palmerston, with average highs near 33.1°C and lows around 19.1°C (mean 26.1°C). It is one of the drier months, averaging 2 mm of rainfall and 50% relative humidity across the period.
July is one of the cooler months of the year in Palmerston. Across 45 years of records, the warmest July in Palmerston was 1981 — when the month averaged 28.2°C — while the coldest was 2006 at 23.6°C. Typical July days reach 33.1°C with nights near 19.1°C. The long-term trend is warming, about 0.2°C per decade.
July is one of the drier months in Palmerston, averaging 2 mm of rainfall. The wettest July on record was 1986 with 38 mm, while the driest were 2012, 2013 and 2014, among others at 0 mm.
Relative humidity in Palmerston during July averages 50%. The most humid July was 1986 at 60%, and the least humid was 2008 at 42%.
July receives about 5.3 kWh/m²/day of solar energy in Palmerston. The sunniest Julys were 2002, 2019 and 2020 at 5.6 kWh/m²/day, and the cloudiest was 2010 at 4.8.
Average wind speed in Palmerston during July is 2.7 m/s. The windiest July was 2010 at 3.4 m/s, while the calmest was 2021 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 26.2°C | 25.5°C | 26.5°C | 26.6°C | +0.6°C |
| Avg High | 32.9°C | 33.3°C | 32.7°C | 33.3°C | 33.6°C | +0.7°C |
| Avg Low | 19.0°C | 19.1°C | 18.2°C | 19.7°C | 19.5°C | +0.5°C |
| Avg Rain | 5 mm | 1 mm | 1 mm | 1 mm | 1 mm | -3 mm |
July temperatures in Palmerston have risen by about 1.2°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 11.1°C (1983) to a record high of 37.1°C (2021).
Rainfall in July is one of the drier months, averaging 2 mm, with a wettest year of 38 mm.
One of the best times to visit Palmerston
July is one of the best times to visit Palmerston. Expect days averaging 33.1°C and nights around 19.1°C (mean 26.1°C) — cooler than Palmerston's yearly average — with low rainfall (2 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 | 33.8°C | 27.1°C | 20.3°C | 35.5°C | 15.8°C | 2 mm | 54% | 2.3 m/s | 5.1 |
| 2024 | 33.4°C | 26.6°C | 19.9°C | 35.3°C | 13.8°C | 2 mm | 49% | 2.9 m/s | 5.2 |
| 2023 | 33.5°C | 27.0°C | 20.5°C | 35.8°C | 12.8°C | 1 mm | 49% | 2.7 m/s | 5.1 |
| 2022 | 31.9°C | 24.3°C | 16.6°C | 35.0°C | 13.1°C | 2 mm | 46% | 2.6 m/s | 5.4 |
| 2021 | 34.9°C | 28.0°C | 21.0°C | 37.1°C | 16.9°C | 0 mm | 50% | 2.1 m/s | 5.3 |
| 2020 | 33.8°C | 26.3°C | 18.9°C | 36.0°C | 14.4°C | 0 mm | 43% | 2.9 m/s | 5.6 |
| 2019 | 33.2°C | 26.0°C | 18.8°C | 35.0°C | 15.9°C | 1 mm | 48% | 2.4 m/s | 5.6 |
| 2018 | 33.9°C | 27.1°C | 20.3°C | 35.6°C | 15.4°C | 1 mm | 48% | 2.4 m/s | 5.4 |
| 2017 | 34.6°C | 28.1°C | 21.7°C | 35.7°C | 17.9°C | 1 mm | 55% | 2.7 m/s | 5.3 |
| 2016 | 33.7°C | 26.8°C | 19.9°C | 36.0°C | 14.0°C | 5 mm | 49% | 2.8 m/s | 5.4 |
| 2015 | 33.1°C | 26.0°C | 19.0°C | 35.8°C | 14.1°C | 0 mm | 47% | 2.8 m/s | 5.5 |
| 2014 | 33.1°C | 26.2°C | 19.3°C | 35.0°C | 15.1°C | 0 mm | 52% | 2.4 m/s | 5.2 |
| 2013 | 33.1°C | 26.4°C | 19.7°C | 34.5°C | 15.2°C | 0 mm | 50% | 2.9 m/s | 5.1 |
| 2012 | 32.6°C | 25.7°C | 18.7°C | 36.1°C | 14.2°C | 0 mm | 46% | 2.7 m/s | 5.1 |
| 2011 | 32.1°C | 25.2°C | 18.3°C | 34.5°C | 14.6°C | 0 mm | 53% | 3 m/s | 5.1 |
| 2010 | 34.0°C | 27.8°C | 21.6°C | 35.7°C | 18.8°C | 4 mm | 56% | 3.4 m/s | 4.8 |
| 2009 | 33.5°C | 26.2°C | 19.0°C | 36.0°C | 14.3°C | 0 mm | 45% | 2.5 m/s | 5.3 |
| 2008 | 33.5°C | 25.8°C | 18.2°C | 35.4°C | 12.2°C | 0 mm | 42% | 2.7 m/s | 5.4 |
| 2007 | 31.8°C | 24.2°C | 16.5°C | 34.3°C | 12.3°C | 0 mm | 52% | 2.7 m/s | 5.4 |
| 2006 ❄️ | 30.8°C | 23.6°C | 16.4°C | 34.0°C | 11.9°C | 0 mm | 57% | 2.7 m/s | 5.3 |
| 2005 | 34.1°C | 27.4°C | 20.6°C | 35.8°C | 13.8°C | 0 mm | 48% | 2.7 m/s | 5.1 |
| 2004 | 32.4°C | 25.0°C | 17.5°C | 35.2°C | 12.5°C | 0 mm | 53% | 2.8 m/s | 5.4 |
| 2003 | 34.0°C | 26.9°C | 19.8°C | 35.6°C | 16.4°C | 2 mm | 48% | 2.6 m/s | 5.3 |
| 2002 | 32.8°C | 25.2°C | 17.7°C | 34.9°C | 12.9°C | 0 mm | 46% | 2.4 m/s | 5.6 |
| 2001 | 32.4°C | 25.6°C | 18.7°C | 34.3°C | 13.3°C | 11 mm | 54% | 2.9 m/s | 5.3 |
| 2000 | 31.7°C | 24.6°C | 17.4°C | 34.0°C | 14.3°C | 0 mm | 59% | 2.6 m/s | 5.4 |
| 1999 | 32.4°C | 24.9°C | 17.3°C | 34.1°C | 13.8°C | 0 mm | 45% | 2.5 m/s | 5.4 |
| 1998 | 34.4°C | 27.9°C | 21.4°C | 36.5°C | 17.0°C | 0 mm | 56% | 2.9 m/s | 5.2 |
| 1997 | 32.9°C | 25.6°C | 18.3°C | 34.5°C | 14.4°C | 0 mm | 45% | 2.9 m/s | 5.4 |
| 1996 | 33.5°C | 26.4°C | 19.2°C | 35.6°C | 14.1°C | 1 mm | 48% | 2.4 m/s | 5.3 |
| 1995 | 33.8°C | 26.4°C | 19.0°C | 36.2°C | 15.7°C | 0 mm | 51% | 2.9 m/s | 5.3 |
| 1994 | 32.2°C | 24.7°C | 17.3°C | 33.7°C | 13.9°C | 0 mm | 46% | 2.7 m/s | 5.4 |
| 1993 | 33.2°C | 26.6°C | 20.1°C | 35.5°C | 15.4°C | 0 mm | 52% | 2.3 m/s | 5.3 |
| 1992 | 33.2°C | 25.7°C | 18.3°C | 35.5°C | 13.9°C | 0 mm | 50% | 2.9 m/s | 5.3 |
| 1991 | 33.4°C | 26.6°C | 19.8°C | 35.2°C | 14.6°C | 1 mm | 49% | 2.3 m/s | 4.9 |
| 1990 | 34.0°C | 27.2°C | 20.5°C | 35.9°C | 14.3°C | 5 mm | 52% | 2.4 m/s | 5.2 |
| 1989 | 33.4°C | 26.5°C | 19.6°C | 35.6°C | 15.6°C | 0 mm | 53% | 2.4 m/s | 5.3 |
| 1988 | 34.8°C | 27.8°C | 20.7°C | 36.0°C | 17.4°C | 0 mm | 49% | 2.5 m/s | 5.4 |
| 1987 | 33.1°C | 26.1°C | 19.1°C | 34.8°C | 16.2°C | 2 mm | 49% | 2.7 m/s | 5 |
| 1986 🌧️ | 32.4°C | 26.4°C | 20.5°C | 35.7°C | 15.5°C | 38 mm | 60% | 2.7 m/s | 4.9 |
| 1985 | 31.1°C | 23.7°C | 16.3°C | 33.7°C | 11.9°C | 1 mm | 51% | 3 m/s | 5.3 |
| 1984 | 32.3°C | 25.2°C | 18.2°C | 34.7°C | 12.3°C | 0 mm | 52% | 2.9 m/s | 4.9 |
| 1983 | 32.3°C | 25.1°C | 17.9°C | 34.5°C | 11.1°C | 0 mm | 49% | 2.8 m/s | — |
| 1982 | 32.2°C | 24.6°C | 17.0°C | 34.1°C | 12.9°C | 0 mm | 42% | 2.8 m/s | — |
| 1981 🔥 | 34.5°C | 28.2°C | 22.0°C | 36.9°C | 17.4°C | 2 mm | 52% | 2.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 33.1°C with lows near 19.1°C (mean 26.1°C), based on 45 years of NASA POWER data.
July averages 2 mm of rainfall in Palmerston, one of the drier months. The wettest on record was 38 mm in 1986.
The hottest July reached 37.1°C in 2021. The coldest dipped to 11.1°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.2°C. Daytime highs moved from 32.5°C to 33.5°C and overnight lows from 18.3°C to 19.7°C over the same span.
July is one of the cooler months of the year in Palmerston and one of the drier months, so plan for around 33.1°C daytime highs and 19.1°C at night.
Not quite — July is the 2nd coolest month in Palmerston, averaging 26.1°C.
For July in Palmerston, pack light, breathable clothing and sun protection, with typical highs of 33.1°C and lows of 19.1°C.
Relative humidity in July averages 50% — relatively dry.
Average wind speed in July is 2.7 m/s. The windiest July on record averaged 3.4 m/s (2010).
The wettest July on record was 1986 with 38 mm. On average, July sees 2 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 Palmerston 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.
