July is one of the cooler months of the year in Christchurch, with average highs near 10.1°C and lows around 2.5°C (mean 6.3°C). It is about average for rainfall, averaging 83 mm of rainfall and 88% relative humidity across the period.
July is one of the cooler months of the year in Christchurch. Across 45 years of records, the warmest July in Christchurch was 2019 — when the month averaged 8.1°C — while the coldest was 1995 at 4°C. Typical July days reach 10.1°C with nights near 2.5°C. The long-term trend is warming, about 0.2°C per decade.
July is about average for rainfall in Christchurch, averaging 83 mm of rainfall. The wettest July on record was 2022 with 282 mm, while the driest was 2000 at 21 mm.
Relative humidity in Christchurch during July averages 88%. The most humid July was 2017 at 92%, and the least humid was 2011 at 84%.
July receives about 1.6 kWh/m²/day of solar energy in Christchurch. The sunniest Julys were 1989 and 2004 at 1.9 kWh/m²/day, and the cloudiest was 1984 at 1.1.
Average wind speed in Christchurch during July is 2.4 m/s. The windiest July was 2011 at 3.1 m/s, while the calmest was 1993 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.1°C | 5.9°C | 6.2°C | 6.7°C | 6.9°C | +0.8°C |
| Avg High | 9.9°C | 9.7°C | 10.1°C | 10.6°C | 10.6°C | +0.7°C |
| Avg Low | 2.4°C | 2.1°C | 2.3°C | 2.7°C | 3.1°C | +0.7°C |
| Avg Rain | 90 mm | 83 mm | 58 mm | 82 mm | 117 mm | +28 mm |
July temperatures in Christchurch have risen by about 0.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -2.8°C (2007) to a record high of 18.7°C (2012).
Rainfall in July is about average for rainfall, averaging 83 mm, with a wettest year of 282 mm.
A quieter season to visit Christchurch
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Christchurch. That said, July — with days averaging 10.1°C and nights around 2.5°C (mean 6.3°C) and higher rainfall (83 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 | 10.9°C | 7.1°C | 3.2°C | 15.9°C | -0.6°C | 65 mm | 90% | 2.1 m/s | 1.6 |
| 2024 | 10.7°C | 7.0°C | 3.3°C | 17.2°C | -0.5°C | 68 mm | 89% | 2.3 m/s | 1.7 |
| 2023 | 10.8°C | 7.1°C | 3.4°C | 16.0°C | -0.3°C | 146 mm | 89% | 2.6 m/s | 1.7 |
| 2022 🌧️ | 9.7°C | 6.6°C | 3.4°C | 15.0°C | -1.1°C | 282 mm | 90% | 2.7 m/s | 1.4 |
| 2021 | 11.1°C | 6.8°C | 2.6°C | 15.0°C | -1.4°C | 70 mm | 90% | 2.3 m/s | 1.8 |
| 2020 | 10.6°C | 6.7°C | 2.9°C | 15.5°C | -0.4°C | 74 mm | 89% | 2.4 m/s | 1.7 |
| 2019 🔥 | 11.9°C | 8.1°C | 4.2°C | 16.5°C | 0.5°C | 138 mm | 90% | 2.4 m/s | 1.4 |
| 2018 | 11.7°C | 7.4°C | 3.1°C | 16.6°C | -0.3°C | 71 mm | 89% | 2.4 m/s | 1.8 |
| 2017 | 9.2°C | 5.8°C | 2.4°C | 13.6°C | -1.3°C | 162 mm | 92% | 2.4 m/s | 1.5 |
| 2016 | 10.9°C | 6.4°C | 2.0°C | 15.6°C | -0.5°C | 71 mm | 85% | 2.6 m/s | 1.8 |
| 2015 | 9.6°C | 5.6°C | 1.7°C | 15.6°C | -1.7°C | 79 mm | 88% | 2.6 m/s | 1.7 |
| 2014 | 9.7°C | 6.5°C | 3.2°C | 16.2°C | -0.2°C | 41 mm | 89% | 2.9 m/s | 1.6 |
| 2013 | 12.1°C | 7.9°C | 3.8°C | 16.0°C | -0.5°C | 64 mm | 87% | 2.3 m/s | 1.8 |
| 2012 | 11.2°C | 7.2°C | 3.1°C | 18.7°C | -0.8°C | 78 mm | 89% | 2 m/s | 1.7 |
| 2011 | 10.1°C | 5.9°C | 1.8°C | 13.7°C | -2.8°C | 37 mm | 84% | 3.1 m/s | 1.8 |
| 2010 | 9.5°C | 5.7°C | 2.0°C | 12.5°C | -1.1°C | 78 mm | 91% | 1.9 m/s | 1.7 |
| 2009 | 9.1°C | 5.3°C | 1.5°C | 13.3°C | -1.6°C | 61 mm | 88% | 2.2 m/s | 1.8 |
| 2008 | 9.8°C | 6.5°C | 3.2°C | 14.3°C | -2.0°C | 160 mm | 90% | 3 m/s | 1.4 |
| 2007 | 9.3°C | 6.1°C | 2.8°C | 15.6°C | -2.8°C | 69 mm | 90% | 2.1 m/s | 1.6 |
| 2006 | 9.9°C | 6.2°C | 2.4°C | 13.8°C | -0.4°C | 49 mm | 90% | 2.3 m/s | 1.6 |
| 2005 | 11.8°C | 7.6°C | 3.4°C | 16.5°C | -0.8°C | 50 mm | 87% | 2.4 m/s | 1.6 |
| 2004 | 10.1°C | 5.5°C | 1.0°C | 14.7°C | -1.3°C | 48 mm | 85% | 2.2 m/s | 1.9 |
| 2003 | 10.3°C | 5.7°C | 1.1°C | 15.6°C | -1.6°C | 39 mm | 86% | 2.3 m/s | 1.8 |
| 2002 | 9.8°C | 6.0°C | 2.3°C | 16.1°C | -1.6°C | 24 mm | 89% | 2.1 m/s | 1.6 |
| 2001 | 9.3°C | 5.2°C | 1.0°C | 14.6°C | -1.5°C | 57 mm | 84% | 2.1 m/s | 1.7 |
| 2000 | 11.7°C | 7.7°C | 3.8°C | 16.0°C | 0.5°C | 21 mm | 87% | 2 m/s | 1.8 |
| 1999 | 10.1°C | 6.5°C | 2.8°C | 14.8°C | -0.6°C | 92 mm | 90% | 2.5 m/s | 1.4 |
| 1998 | 11.2°C | 7.2°C | 3.1°C | 16.6°C | 0.2°C | 65 mm | 88% | 2.3 m/s | 1.6 |
| 1997 | 10.1°C | 5.7°C | 1.2°C | 14.4°C | -1.3°C | 30 mm | 86% | 2.3 m/s | 1.6 |
| 1996 | 8.2°C | 5.5°C | 2.7°C | 13.0°C | -1.1°C | 116 mm | 92% | 2.2 m/s | 1.5 |
| 1995 ❄️ | 7.5°C | 4.0°C | 0.4°C | 10.9°C | -2.3°C | 130 mm | 87% | 2.5 m/s | 1.6 |
| 1994 | 9.0°C | 5.7°C | 2.4°C | 13.4°C | -1.4°C | 161 mm | 88% | 2.8 m/s | 1.5 |
| 1993 | 10.7°C | 6.4°C | 2.2°C | 14.9°C | -1.5°C | 24 mm | 88% | 1.8 m/s | 1.8 |
| 1992 | 9.5°C | 5.7°C | 2.0°C | 13.6°C | -0.9°C | 87 mm | 87% | 2.4 m/s | 1.4 |
| 1991 | 9.3°C | 5.1°C | 0.8°C | 12.9°C | -1.5°C | 69 mm | 87% | 2 m/s | 1.6 |
| 1990 | 11.0°C | 7.1°C | 3.1°C | 15.5°C | -1.3°C | 57 mm | 88% | 2.3 m/s | 1.7 |
| 1989 | 9.1°C | 5.2°C | 1.4°C | 12.4°C | -1.2°C | 70 mm | 88% | 2.2 m/s | 1.9 |
| 1988 | 11.0°C | 7.0°C | 3.0°C | 15.6°C | -0.7°C | 79 mm | 86% | 2.8 m/s | 1.7 |
| 1987 | 9.5°C | 6.0°C | 2.4°C | 13.3°C | 0.1°C | 57 mm | 88% | 2.4 m/s | 1.6 |
| 1986 | 9.2°C | 5.3°C | 1.3°C | 14.0°C | -1.5°C | 170 mm | 89% | 2.9 m/s | 1.6 |
| 1985 | 11.0°C | 7.0°C | 3.1°C | 15.2°C | -1.6°C | 85 mm | 88% | 2.3 m/s | 1.7 |
| 1984 | 10.5°C | 7.0°C | 3.5°C | 15.9°C | -1.1°C | 103 mm | 90% | 2.6 m/s | 1.1 |
| 1983 | 9.3°C | 5.8°C | 2.4°C | 14.2°C | -1.1°C | 93 mm | 89% | 2.5 m/s | — |
| 1982 | 9.6°C | 5.6°C | 1.6°C | 14.5°C | -1.0°C | 68 mm | 87% | 2.3 m/s | — |
| 1981 | 9.7°C | 6.1°C | 2.5°C | 14.9°C | -0.9°C | 81 mm | 89% | 2.5 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 10.1°C with lows near 2.5°C (mean 6.3°C), based on 45 years of NASA POWER data.
July averages 83 mm of rainfall in Christchurch, about average for rainfall. The wettest on record was 282 mm in 2022.
The hottest July reached 18.7°C in 2012. The coldest dipped to -2.8°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.6°C. Daytime highs moved from 10°C to 10.6°C and overnight lows from 2.6°C to 3.2°C over the same span.
July is one of the cooler months of the year in Christchurch and about average for rainfall, so plan for around 10.1°C daytime highs and 2.5°C at night.
Yes — July is the coldest month of the year in Christchurch, averaging 6.3°C.
For July in Christchurch, pack warm layers and a jacket for chilly mornings, with typical highs of 10.1°C and lows of 2.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 88% — quite humid.
Average wind speed in July is 2.4 m/s. The windiest July on record averaged 3.1 m/s (2011).
The wettest July on record was 2022 with 282 mm. On average, July sees 83 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 Christchurch 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.
