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August Weather in Riverton, New Zealand

Last updated: August 31, 2025

In August, the average temperature in Riverton, New Zealand hovers around 8°C (46°F). Expect a range where the minimum can drop to -2°C (28°F) and the maximum peaks at 17°C (64°F). With 96 mm (3.8 in) of precipitation spread over 19 days, rain is likely. Additionally, the air stays quite damp, boasting an average humidity of 84%.

August Temperature in Riverton

In August in Riverton, the average temperature is 8°C (46°F), with maximums reaching 17°C (64°F) and minimums dipping as low as -2°C (28°F). It's a great time to visit if you enjoy cool weather and are prepared for the occasional chill!

August Weather in Riverton: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Riverton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverton, August typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (64°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec585856524944444648515457
Data source: Temperature data for Riverton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Riverton

In Riverton in August, the precipitation amount is 96 mm (3.8 in) over the course of 19 days.

August Precipitation Trends in Riverton

The chart displays monthly precipitation patterns in Riverton, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Riverton, August typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec10612794991018510596131126123119
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Riverton

In Riverton in August humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

August Average Humidity in Riverton

This chart illustrates the average monthly humidity levels in Riverton, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Riverton is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%84%84%85%85%85%84%83%82%83%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Riverton

In Riverton in August, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Riverton, you can check the information here.

Maximum UV Index Levels in Riverton for August

The chart shows the monthly maximum UV Index (UVI) for Riverton in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Riverton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121185322358912
Data source: Riverton August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Riverton Compares to Other Months

Weather in Riverton varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Riverton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Riverton, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)106 mm (4.2 inches)83%extreme
February Weather14°C (58°F)127 mm (5.0 inches)82%extreme
March Weather13°C (57°F)94 mm (3.7 inches)84%very high
April Weather11°C (53°F)99 mm (3.9 inches)84%moderate
May Weather9°C (49°F)101 mm (4.0 inches)85%moderate
June Weather7°C (45°F)85 mm (3.3 inches)85%low
July Weather7°C (44°F)105 mm (4.1 inches)85%low
August Weather8°C (46°F)96 mm (3.8 inches)84%moderate
September Weather9°C (48°F)131 mm (5.2 inches)83%moderate
October Weather10°C (51°F)126 mm (4.9 inches)82%very high
November Weather12°C (54°F)123 mm (4.9 inches)82%very high
December Weather14°C (57°F)119 mm (4.7 inches)83%extreme

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