July weather forecast
Christchurch, New Zealand

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Weather in July

July is the peak of winter in Christchurch, often regarded as the coldest month of the year. While snowfall is rare, it does occur occasionally amounting to 2mm (0.08") over 0.2 days in average. Inclement weather, coupled with low temperatures, primarily restricts outdoor activities to just a few days. Higher relative humidity and a tendency for overcast skies create a chilly, damp atmosphere. Reduced daylight hours and decreasing winds become a common sight throughout the month.

Temperature

The coldest temperatures in Christchurch occur during July, when averages reach a peak of 10.3°C (50.5°F) and a low of 3.8°C (38.8°F).

Humidity

In Christchurch, the average relative humidity in July is 79%.

Rainfall

In Christchurch, during July, the rain falls for 8.6 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, in Christchurch, there are 114.3 rainfall days, and 300mm (11.81") of precipitation is accumulated.

Snowfall

June through September are months with snowfall in Christchurch. In Christchurch, New Zealand, during July, snow falls for 0.2 days and regularly aggregates up to 2mm (0.08") of snow. In Christchurch, during the entire year, snow falls for 1 days and aggregates up to 13mm (0.51") of snow.

Sea temperature

In Christchurch, in July, the average water temperature is 9.8°C (49.6°F).
Note: It is risky to swim in 9.8°C (49.6°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.

Daylight

The average length of the day in July in Christchurch is 9h and 18min.
On the first day of the month, sunrise is at 8:03 am and sunset at 5:03 pm. On the last day of July, in Christchurch, sunrise is at 7:43 am and sunset at 5:28 pm NZST.

Sunshine

In Christchurch, the average sunshine in July is 6.5h.

UV index

April through September, with an average maximum UV index of 3, are months with the lowest UV index in Christchurch. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 3 in July translates into these instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in Christchurch?

Christchurch's coldest weather arrives in July, when temperatures average a high of 10.3°C (50.5°F) and a low of 3.8°C (38.8°F).

What are the temperatures in Christchurch in July?

In July, the average high-temperature and low-temperature in Christchurch are 10.3°C (50.5°F) and 3.8°C (38.8°F) respectively.

What is the average humidity in July in Christchurch?

In Christchurch, the average relative humidity in July is 79%.

How much does it rain in Christchurch in July?

In July, the rain falls for 8.6 days. Throughout July, 24mm (0.94") of precipitation is accumulated.

How much does it snow in Christchurch in July?

In Christchurch, in July, snow falls for 0.2 days, with typically accumulated 2mm (0.08") of snow.

What is the water temperature in July in Christchurch?

In Christchurch, the average seawater temperature in July is 9.8°C (49.6°F). Swimming in 9.8°C (49.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in July in Christchurch?

In Christchurch, the average day length in July is 9h and 18min.

When are sunrise and sunset in July in Christchurch?

On the first day of July in Christchurch, sunrise is at 8:03 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:28 pm NZST.

How many hours of sunshine does Christchurch have in July?

In Christchurch, New Zealand, the average sunshine duration in July is 6.5h.

When is the lowest UV index in Christchurch?

The months with the lowest UV index in Christchurch, New Zealand, are April through September, with an average maximum UV index of 3.

What is the UV index reading in July in Christchurch?

The average daily maximum UV index in July is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
10.7°C 51.3°F
10.3°C 50.5°F
11.8°C 53.2°F
Average low temperature
4.7°C 40.5°F
3.8°C 38.8°F
4.5°C 40.1°F
Average pressure
1015mbar 29.97inHg
1013.2mbar 29.92inHg
1012.3mbar 29.89inHg
Average wind speed
12.7km/h 7.9mph
12.9km/h 8mph
12.4km/h 7.7mph
Average max. wind speed
13.9km/h 8.6mph
14.1km/h 8.8mph
13.7km/h 8.5mph
Average wind speed gusts
22.6km/h 14mph
23.2km/h 14.4mph
21.7km/h 13.5mph
Average humidity
81%
79%
80%
Average rainfall
31mm 1.22"
24mm 0.94"
28mm 1.1"
Average rainfall days
9.6
8.6
9.3
Average snowfall
3mm 0.12"
2mm 0.08"
5mm 0.2"
Average snowfall days
0.3
0.2
0.3
Average sea temperature
10.8°C 51.4°F
9.8°C 49.6°F
9.5°C 49.1°F
Average daylight
9h 0min
9h 2min
10h 2min
Average sunshine
5h 1min
6h 3min
7h 0min
Average sunshine days
18.9
20.4
20
Average UV index
3
3
3
Average cloud cover
43%
39%
41%
Average visibility
10km 6.2mi
10km 6.2mi
9km 5.6mi

Average temperature in July
Christchurch, New Zealand

Average temperature in July - Christchurch, New Zealand
  • Average high temperature in July: 10.3°C

The warmest month (with the highest average high temperature) is January (21.3°C).
The month with the lowest average high temperature is July (10.3°C).

  • Average low temperature in July: 3.8°C

The month with the highest average low temperature is January (11.9°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).

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Average pressure in July
Christchurch, New Zealand

Average pressure in July - Christchurch, New Zealand
  • Average pressure in July: 1013.2mbar

The month with the highest atmospheric pressure is March (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).

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Average wind speed in July
Christchurch, New Zealand

Average wind speed in July - Christchurch, New Zealand
  • Average wind speed in July: 12.9km/h

The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).

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Average humidity in July
Christchurch, New Zealand

Average humidity in July - Christchurch, New Zealand
  • Average humidity in July: 79%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is January (70%).

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Average rainfall in July
Christchurch, New Zealand

Average rainfall in July - Christchurch, New Zealand
  • Average rainfall in July: 24mm

The wettest month (with the highest rainfall) is October (38mm).
The driest month (with the least rainfall) is September (14mm).

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Average rainfall days in July
Christchurch, New Zealand

Average rainfall days in July - Christchurch, New Zealand
  • Average rainfall days in July: 8.6 days

The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (8 days).

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Average snowfall in July
Christchurch, New Zealand

Average snowfall in July - Christchurch, New Zealand
  • Average snowfall in July: 2mm

The month with the highest snowfall is August (5mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).

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Average snowfall days in July
Christchurch, New Zealand

Average snowfall days in July - Christchurch, New Zealand
  • Average snowfall days in July: 0.2 days

The months with the highest number of snowfall days are June and August (0.3 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).

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Average sea temperature in July
Christchurch, New Zealand

Average sea temperature in July - Christchurch, New Zealand
  • Average sea temperature in July: 9.8°C

The best month for swimming (with the highest average sea temperature) is February (16.1°C).
The coldest month (with the lowest average sea temperature) is August (9.5°C).

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Average daylight in July /
Average sunshine in July
Christchurch, New Zealand

Average daylight in July / Average sunshine in July - Christchurch, New Zealand
  • Average daylight in July: 9h and 2min

The month with the longest days is December (Average daylight: 15h and 24min).
The month with the shortest days is June (Average daylight: 9h and 0min).

  • Average sunshine in July: 6h and 3min

The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 6min).

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Average sunshine days in July
Christchurch, New Zealand

Average sunshine days in July - Christchurch, New Zealand
  • Average sunshine days in July: 20.4 days

The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (17.3 days).

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Average UV index in July
Christchurch, New Zealand

Average UV index in July - Christchurch, New Zealand
  • Average UV index in July: 3

The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August and September (UV index 3).

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Average cloud cover in July
Christchurch, New Zealand

Average cloud cover in July - Christchurch, New Zealand
  • Average cloud cover in July: 39

The month with the most cloud cover is June (Cloud cover 43).
The months with the least cloud cover are January, February, March and May (Cloud cover 37).

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Average visibility in July
Christchurch, New Zealand

Average visibility in July - Christchurch, New Zealand
  • Average visibility in July: 10km

The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).

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Christchurch, New Zealand

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