Climate averages 1991–2020
Christchurch weather
in July.
A cool, moderately wet month: the coolest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Christchurch: daytime highs average 9.9°C and nights cool to about 2.1°C. By daytime temperature it is the coolest month of the year.
Expect about 52 mm of rain on roughly 9 days, which makes July a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 17 min on an average July day.
The nearest other city in this atlas is Wellington (305 km away). In July its highs average 11.2°C, 1.2°C warmer than Christchurch, with 87 mm of rain.
Among the 11 cities listed in New Zealand, Christchurch ranks 10th of 11 for the warmest July highs and 2nd of 11 for the driest July (rainfall, lowest first). The mean July high of those 11 cities is 11.8°C; Christchurch is 1.8°C cooler than that mean.
From July to August, average highs rise by 1.3°C to 11.2°C, and monthly rainfall falls from 52 mm to 48 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Christchurch climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.2°C12.4°C | 12.4°C | 50 | 8.3 | 15.015 h |
| February | 21.2°C12.5°C | 12.5°C | 39 | 6.8 | 13.914 h |
| March | 19.3°C10.7°C | 10.7°C | 45 | 6.9 | 12.412 h |
| April | 16.3°C8.2°C | 8.2°C | 52 | 8.8 | 10.911 h |
| May | 13.5°C5.8°C | 5.8°C | 48 | 8.1 | 9.710 h |
| June | 10.5°C3.0°C | 3.0°C | 57 | 8.8 | 9.09 h |
| July, selected | 9.9°C2.1°C | 2.1°C | 52 | 8.5 | 9.39 h |
| August | 11.2°C3.1°C | 3.1°C | 48 | 8.9 | 10.410 h |
| September | 13.4°C4.8°C | 4.8°C | 43 | 8.1 | 11.812 h |
| October | 15.5°C6.6°C | 6.6°C | 48 | 9.6 | 13.313 h |
| November | 17.3°C8.5°C | 8.5°C | 49 | 9.0 | 14.615 h |
| December | 19.6°C11.0°C | 11.0°C | 53 | 9.3 | 15.315 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Wellington in JulyNew Zealand · 305 kmHigh 11.2°C · Low 8.6°C · 87 mm rain
- Dunedin in JulyNew Zealand · 310 kmHigh 8.4°C · Low 2.3°C · 39 mm rain
- Lower Hutt in JulyNew Zealand · 319 kmHigh 11.5°C · Low 7.6°C · 84 mm rain
- Palmerston North in JulyNew Zealand · 431 kmHigh 11.4°C · Low 5.1°C · 89 mm rain
- New Plymouth in JulyNew Zealand · 511 kmHigh 11.9°C · Low 7.2°C · 189 mm rain
- Hastings, New Zealand in JulyNew Zealand · 557 kmHigh 12.2°C · Low 5.4°C · 85 mm rain
- Hamilton, New Zealand in JulyNew Zealand · 677 kmHigh 12.9°C · Low 5.1°C · 127 mm rain
- Tauranga in JulyNew Zealand · 715 kmHigh 12.9°C · Low 7.6°C · 133 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Christchurch) is explained once on the Christchurch year overview and on the Sources, method and limits page.