August Weather in Newcastle, South Africa

Last updated: August 31, 2025

In August, the average temperature in Newcastle, South Africa is a pleasant 15°C (59°F). You'll experience a minimum temperature that can dip to 0°C (32°F), while highs can soar up to 30°C (87°F). Expect some light showers with an average precipitation of 22 mm (0.9 in) spread over 4 days, and enjoy a comfortable average humidity of 68%.

August Temperature in Newcastle

In August in Newcastle, the average temperature is 15°C (59°F). Maximums can reach 30°C (87°F), while minimums can drop to as low as 0°C (32°F). Be sure to pack layers to enjoy both the warm days and the chilly evenings!

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

The chart illustrates August temperature patterns in Newcastle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newcastle, August typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (87°F) and lows dropping to around 0°C (32°F).

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

August Precipitation in Newcastle

In Newcastle in August, the precipitation amount is 22 mm (0.9 in) over a duration of 4 days.

August Precipitation Trends in Newcastle

The chart displays monthly precipitation patterns in Newcastle, 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 Newcastle, August typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Newcastle

In Newcastle in August, humidity is 68%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and sightseeing, but travelers should be prepared for occasional discomfort as the mugginess can dampen outdoor activities.

August Average Humidity in Newcastle

This chart illustrates the average monthly humidity levels in Newcastle, 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 Newcastle is approximately 68%, 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 Newcastle

In Newcastle in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Newcastle.

Maximum UV Index Levels in Newcastle for August

The chart shows the monthly maximum UV Index (UVI) for Newcastle 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 Newcastle typically reaches 8, which falls under the very high exposure category.

Data source: Newcastle 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 Newcastle Compares to Other Months

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

This table compares monthly weather conditions in Newcastle, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	117 mm (4.6 inches)	79%	extreme
February Weather	21°C (70°F)	136 mm (5.3 inches)	77%	extreme
March Weather	20°C (69°F)	101 mm (4.0 inches)	77%	extreme
April Weather	17°C (63°F)	68 mm (2.7 inches)	81%	very high
May Weather	14°C (58°F)	28 mm (1.1 inches)	82%	high
June Weather	12°C (53°F)	9 mm (0.4 inches)	73%	moderate
July Weather	12°C (54°F)	3 mm (0.1 inches)	71%	high
August Weather	15°C (59°F)	22 mm (0.9 inches)	68%	very high
September Weather	18°C (64°F)	38 mm (1.5 inches)	74%	extreme
October Weather	18°C (66°F)	76 mm (3.0 inches)	74%	extreme
November Weather	20°C (68°F)	106 mm (4.2 inches)	82%	extreme
December Weather	21°C (70°F)	161 mm (6.3 inches)	81%	extreme