August Weather in Riwaka, New Zealand

Last updated: August 31, 2025

In August, the average temperature in Riwaka, New Zealand hovers around 9°C (49°F), providing a cool ambiance. Expect temperatures to range from a minimum of 4°C (39°F) to a maximum of 15°C (59°F). During this month, precipitation can be quite notable, with an average of 156 mm (6.2 in) spread across 14 days. Coupled with an average humidity of 83%, it's a time to prepare for a distinctly damp and chilly experience!

August Temperature in Riwaka

In August in Riwaka, the average temperature is 9°C (49°F). Maximums can reach 15°C (59°F), while minimums can drop as low as 4°C (39°F). Be sure to pack a warm jacket and layers to stay comfortable while exploring the charming sights.

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

The chart illustrates August temperature patterns in Riwaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riwaka, August typically has an average temperature of 9°C (49°F), with highs reaching up to 15°C (59°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Riwaka generated using information from the Copernicus Climate Change Service.

August Precipitation in Riwaka

In Riwaka in August, the precipitation amount is 156 mm (6.2 in) over a span of 14 days.

August Precipitation Trends in Riwaka

The chart displays monthly precipitation patterns in Riwaka, 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 Riwaka, August typically receives around 156 mm (6.2 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Riwaka

In Riwaka in August, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.

August Average Humidity in Riwaka

This chart illustrates the average monthly humidity levels in Riwaka, 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 Riwaka is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Riwaka

In Riwaka in August, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Riwaka for better planning.

Maximum UV Index Levels in Riwaka for August

The chart shows the monthly maximum UV Index (UVI) for Riwaka 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 Riwaka typically reaches 4, which falls under the moderate exposure category.

Data source: Riwaka 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 Riwaka Compares to Other Months

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

This table compares monthly weather conditions in Riwaka, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	85 mm (3.4 inches)	79%	extreme
February Weather	17°C (63°F)	94 mm (3.7 inches)	79%	extreme
March Weather	16°C (61°F)	128 mm (5.0 inches)	79%	very high
April Weather	14°C (57°F)	154 mm (6.1 inches)	80%	high
May Weather	12°C (54°F)	168 mm (6.6 inches)	84%	moderate
June Weather	10°C (50°F)	86 mm (3.4 inches)	86%	low
July Weather	9°C (48°F)	184 mm (7.3 inches)	86%	low
August Weather	9°C (49°F)	156 mm (6.2 inches)	83%	moderate
September Weather	10°C (51°F)	125 mm (4.9 inches)	83%	high
October Weather	12°C (54°F)	137 mm (5.4 inches)	82%	very high
November Weather	14°C (58°F)	132 mm (5.2 inches)	82%	extreme
December Weather	16°C (62°F)	151 mm (5.9 inches)	81%	extreme