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August Weather in Flagstaff, South Africa

Last updated: August 31, 2025

In August, the average temperature in Flagstaff, South Africa hovers around 14°C (57°F). Expect a range from a cool 1°C (35°F) to a warm 32°C (89°F). This month typically brings 37 mm (1.5 in) of precipitation spread over about 7 days, contributing to an average humidity level of 72%. Prepare for a mix of weather as you explore!

August Temperature in Flagstaff

In August in Flagstaff, the average temperature is 14°C (57°F). Maximum temperatures can reach 32°C (89°F) and minimums can drop as low as 1°C (35°F). It's a great time to travel to Flagstaff if you enjoy mild weather with a chance of warm days and cool evenings.

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

The chart illustrates August temperature patterns in Flagstaff, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Flagstaff, August typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (89°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec697068635956555761636467
Data source: Temperature data for Flagstaff 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 Flagstaff

In Flagstaff in August, the precipitation amount is 37 mm (1.5 in) during a span of 7 days.

August Precipitation Trends in Flagstaff

The chart displays monthly precipitation patterns in Flagstaff, 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 Flagstaff, August typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec106131968933236384184102120
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Flagstaff

In Flagstaff in August humidity is 72%. With an average temperature of 14°C (57°F), this humidity feels like a damp embrace, making outdoor activities slightly uncomfortable and requiring careful planning to stay hydrated and enjoy your travels.

August Average Humidity in Flagstaff

This chart illustrates the average monthly humidity levels in Flagstaff, 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 Flagstaff is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%89%89%88%82%77%72%82%83%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Flagstaff

In Flagstaff in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Flagstaff.

Maximum UV Index Levels in Flagstaff for August

The chart shows the monthly maximum UV Index (UVI) for Flagstaff 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 Flagstaff typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1514129645710121316
Data source: Flagstaff 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 Flagstaff Compares to Other Months

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

This table compares monthly weather conditions in Flagstaff, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)106 mm (4.2 inches)88%extreme
February Weather21°C (70°F)131 mm (5.2 inches)88%extreme
March Weather20°C (68°F)96 mm (3.8 inches)89%extreme
April Weather17°C (64°F)89 mm (3.5 inches)89%very high
May Weather15°C (60°F)33 mm (1.3 inches)88%high
June Weather13°C (56°F)23 mm (0.9 inches)82%moderate
July Weather13°C (56°F)6 mm (0.2 inches)77%moderate
August Weather14°C (57°F)37 mm (1.5 inches)72%high
September Weather16°C (61°F)41 mm (1.6 inches)82%very high
October Weather17°C (63°F)84 mm (3.3 inches)83%extreme
November Weather18°C (64°F)102 mm (4.0 inches)87%extreme
December Weather19°C (67°F)120 mm (4.7 inches)88%extreme

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