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August Weather in San Sebastian, Colombia

Last updated: August 23, 2025

In August, the average temperature in San Sebastian, Colombia hovers around 13°C (56°F). Expect a minimum of 6°C (43°F) and a pleasant maximum of 21°C (71°F). However, be prepared for some rain, as 68 mm (2.7 in) of precipitation typically falls over 17 days. With an average humidity of 61%, it's essential to dress in layers to stay comfortable.

August Temperature in San Sebastian

In August in San Sebastian, the average temperature is 13°C (56°F). Maximums can reach 21°C (71°F), while minimums can drop to as low as 6°C (43°F). Travelers should be prepared for mild days and cool nights, making it ideal for outdoor activities.

August Weather in San Sebastian: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, August typically has an average temperature of 13°C (56°F), with highs reaching up to 21°C (71°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec575857575757555657575857
Data source: Temperature data for San Sebastian 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 San Sebastian

In San Sebastian in August, the total precipitation amount is 68 mm (2.7 in) over the course of 17 days.

August Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, 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 San Sebastian, August typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec150177211174174126896863126211156
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Sebastian

In San Sebastian in August humidity is 61%. With an average temperature of 13°C (56°F), this humidity feels like an uncomfortable blanket surrounding you, making outdoor activities slightly sticky and the air a bit heavier, which might dampen the joy of exploring for travelers.

August Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, 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 San Sebastian is approximately 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%66%74%83%93%93%84%61%53%67%78%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Sebastian

In San Sebastian in August, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Sebastian.

Maximum UV Index Levels in San Sebastian for August

The chart shows the monthly maximum UV Index (UVI) for San Sebastian 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 San Sebastian typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161718181614151515161513
Data source: San Sebastian 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 San Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (57°F)150 mm (5.9 inches)72%extreme
February Weather14°C (58°F)176 mm (6.9 inches)66%extreme
March Weather14°C (58°F)211 mm (8.3 inches)74%extreme
April Weather14°C (58°F)174 mm (6.9 inches)83%extreme
May Weather14°C (58°F)174 mm (6.9 inches)93%extreme
June Weather14°C (57°F)126 mm (4.9 inches)93%extreme
July Weather13°C (56°F)89 mm (3.5 inches)84%extreme
August Weather13°C (56°F)68 mm (2.7 inches)61%extreme
September Weather14°C (57°F)62 mm (2.5 inches)53%extreme
October Weather14°C (58°F)126 mm (5.0 inches)67%extreme
November Weather14°C (58°F)211 mm (8.3 inches)78%extreme
December Weather14°C (58°F)156 mm (6.2 inches)85%extreme

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