August weather forecast
Riverton, New Zealand

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Weather in August

The last month of the winter, August, is a fresh month in Riverton, New Zealand, with an average temperature fluctuating between 5.2°C (41.4°F) and 10.7°C (51.3°F).

Temperature

Riverton records an average high-temperature of a cool 10.7°C (51.3°F) in August, closely mirroring the climate of the previous month. An average low-temperature of 5.2°C (41.4°F) marks the nights in Riverton, New Zealand throughout August.

Humidity

The average relative humidity in August in Riverton is 82%.

Rainfall

The month with the least rainfall is August, when the rain falls for 16.8 days and typically collects 46mm (1.81") of precipitation.

Snowfall

Months with snowfall are May, August and September. August is the month with the most snowfall. Snow falls for 0.3 days and accumulates 13mm (0.51") of snow.

Sea temperature

July and August, with an average sea temperature of 10.8°C (51.4°F), are months with the coldest seawater in Riverton.
Note: Swimming in 10.8°C (51.4°F) can be lethal. Merely spending a few minutes in 13°C (55.4°F) waters feels harsh, and venturing below 10°C (50°F) might disrupt breathing control and bring about cold shock, contingent on individual resilience.

Daylight

The average length of the day in August is 10h and 12min.
On the first day of the month, sunrise is at 8:08 am and sunset at 5:40 pm. On the last day of August, sunrise is at 7:19 am and sunset at 6:17 pm NZST.

Sunshine

In Riverton, New Zealand, the average sunshine in August is 5.9h.

UV index

The average daily maximum UV index in August in Riverton is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In August, an average UV index of 3 transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the average August temperature in Riverton?

The average high-temperature, in August, in Riverton, is 10.7°C (51.3°F), while the average low-temperature is 5.2°C (41.4°F).

What is the average humidity in August in Riverton?

The average relative humidity in August in Riverton, New Zealand, is 82%.

What is the driest month in Riverton?

The month with the least rainfall in Riverton, New Zealand, is August, when the rain falls for 16.8 days and typically collects 46mm (1.81") of precipitation.

How much does it rain in Riverton in August?

In August, the rain falls for 16.8 days. Throughout August, 46mm (1.81") of precipitation is accumulated.

When does it snow the most in Riverton?

The month with the most snowfall in Riverton is August, when snow falls for 0.3 days and typically aggregates up to 13mm (0.51") of snow.

When does it start to snow in Riverton?

August is the first month it typically snows. Throughout August, in the average 0.3 snowfall days, it receives 13mm (0.51") of snow.

When is the sea coldest in Riverton?

The months with the coldest seawater in Riverton are July and August, with an average sea temperature of 10.8°C (51.4°F).

What is the sea water temperature in August in Riverton?

In Riverton, the average seawater temperature in August is 10.8°C (51.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Riverton have in August?

In August, the average day length in Riverton is 10h and 12min.

When is the sunrise / sunset in August in Riverton?

On the first day of August in Riverton, New Zealand, sunrise is at 8:08 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 6:17 pm NZST.

How long on average sun shines in August in Riverton?

The average sunshine duration in August in Riverton is 5.9h.

How high is the UV index in August in Riverton?

In August, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Riverton, New Zealand

Average temperature in August - Riverton, New Zealand
  • Average high temperature in August: 10.7°C

The warmest month (with the highest average high temperature) is January (17.1°C).
The month with the lowest average high temperature is July (9.7°C).

  • Average low temperature in August: 5.2°C

The month with the highest average low temperature is January (10.3°C).
The coldest month (with the lowest average low temperature) is August (5.2°C).

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Average pressure in August
Riverton, New Zealand

Average pressure in August - Riverton, New Zealand
  • Average pressure in August: 1010.9mbar

The month with the highest atmospheric pressure is March (1015.8mbar).
The month with the lowest atmospheric pressure is September (1009.2mbar).

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Average wind speed in August
Riverton, New Zealand

Average wind speed in August - Riverton, New Zealand
  • Average wind speed in August: 15.8km/h

The windiest month (with the highest average wind speed) is October (19.1km/h).
The calmest month (with the lowest average wind speed) is March (15km/h).

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Average humidity in August
Riverton, New Zealand

Average humidity in August - Riverton, New Zealand
  • Average humidity in August: 82%

The month with the highest relative humidity is May (83%).
The months with the lowest relative humidity are January, October, November and December (79%).

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Average rainfall in August
Riverton, New Zealand

Average rainfall in August - Riverton, New Zealand
  • Average rainfall in August: 46mm

The wettest months (with the highest rainfall) are January and November (76mm).
The driest month (with the least rainfall) is August (46mm).

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Average rainfall days in August
Riverton, New Zealand

Average rainfall days in August - Riverton, New Zealand
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is October (21.5 days).
The month with the least rainy days is February (15.7 days).

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Average snowfall in August
Riverton, New Zealand

Average snowfall in August - Riverton, New Zealand
  • Average snowfall in August: 13mm

The month with the highest snowfall is August (13mm).
The months with the least snowfall are January, February, March, April, June, July, October, November and December (0mm).

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Average snowfall days in August
Riverton, New Zealand

Average snowfall days in August - Riverton, New Zealand
  • Average snowfall days in August: 0.3 days

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

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Average sea temperature in August
Riverton, New Zealand

Average sea temperature in August - Riverton, New Zealand
  • Average sea temperature in August: 10.8°C

The best month for swimming (with the highest average sea temperature) is February (15.2°C).
The coldest months (with the lowest average sea temperature) are July and August (10.8°C).

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Average daylight in August /
Average sunshine in August
Riverton, New Zealand

Average daylight in August / Average sunshine in August - Riverton, New Zealand
  • Average daylight in August: 10h and 1min

The month with the longest days is December (Average daylight: 15h and 42min).
The month with the shortest days is June (Average daylight: 8h and 42min).

  • Average sunshine in August: 5h and 5min

The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is June (Average sunshine: 4h and 30min).

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Average sunshine days in August
Riverton, New Zealand

Average sunshine days in August - Riverton, New Zealand
  • Average sunshine days in August: 10.8 days

The month with the most sunshine days is June (11.6 days).
The month with the least sunshine days is October (7.1 days).

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Average UV index in August
Riverton, New Zealand

Average UV index in August - Riverton, New Zealand
  • Average UV index in August: 3

The months with the highest UV index are January, February, March and December (UV index 4).
The month with the lowest UV index is June (UV index 2).

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Average cloud cover in August
Riverton, New Zealand

Average cloud cover in August - Riverton, New Zealand
  • Average cloud cover in August: 51

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 49).

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Average visibility in August
Riverton, New Zealand

Average visibility in August - Riverton, New Zealand
  • Average visibility in August: 9km

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

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Riverton, New Zealand

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