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August Weather in Santiago, Brazil

Last updated: August 22, 2025

In August, the average temperature in Santiago, Brazil hovers around 15°C (60°F). However, it's not unusual to experience minimums of 1°C (33°F) and maximums reaching 32°C (90°F). Be prepared for a fair amount of moisture, with precipitation totaling 116 mm (4.6 in) over approximately 8 days. With an average humidity of 71%, you'll definitely feel the atmosphere!

August Temperature in Santiago

In August in Santiago, the average temperature is 15°C (60°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 1°C (33°F). This makes it a great time for travelers to enjoy a mix of warm days and cool evenings, perfect for outdoor activities and exploration.

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

The chart illustrates August temperature patterns in Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago, August typically has an average temperature of 15°C (60°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec777572686158575964677175
Data source: Temperature data for Santiago 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 Santiago

In Santiago in August, the total precipitation amount is 116 mm (4.6 in) recorded over a span of 8 days.

August Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, 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 Santiago, August typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec17610114610419511310311715017414389
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Santiago

In Santiago in August humidity is 71%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making travel slightly uncomfortable as you feel sticky and sluggish.

August Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, 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 Santiago is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%73%73%81%87%84%80%71%74%78%77%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Santiago

In Santiago 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 Santiago.

Maximum UV Index Levels in Santiago for August

The chart shows the monthly maximum UV Index (UVI) for Santiago 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 Santiago typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1514129655710131414
Data source: Santiago 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 Santiago Compares to Other Months

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

This table compares monthly weather conditions in Santiago, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)176 mm (6.9 inches)74%extreme
February Weather24°C (75°F)101 mm (4.0 inches)73%extreme
March Weather22°C (73°F)146 mm (5.7 inches)73%extreme
April Weather20°C (68°F)104 mm (4.1 inches)81%very high
May Weather16°C (61°F)195 mm (7.7 inches)87%high
June Weather15°C (59°F)113 mm (4.4 inches)84%moderate
July Weather14°C (57°F)103 mm (4.1 inches)80%moderate
August Weather15°C (60°F)116 mm (4.6 inches)71%high
September Weather18°C (64°F)150 mm (5.9 inches)74%very high
October Weather20°C (68°F)174 mm (6.9 inches)77%extreme
November Weather22°C (72°F)143 mm (5.6 inches)77%extreme
December Weather24°C (75°F)89 mm (3.5 inches)85%extreme

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