August Weather in San Antonio, Colombia

Last updated: August 21, 2025

August in San Antonio, Colombia, offers a mild climate characterized by a maximum temperature of 27°C (81°F) and an average of 18°C (65°F), making it an inviting month for visitors. Residents and travelers can expect cooler evenings with temperatures dropping to a minimum of 11°C (53°F). While the month is marked by average precipitation of 61 mm (2.4 in) over 16 days, the humidity level hovers around 64%, adding to the tropical feel of the region. Embrace the lush landscapes and vibrant culture as you navigate the occasional rain showers and enjoy the pleasant warmth of August in this Colombian gem.

August Temperature in San Antonio

In August, San Antonio, Colombia, experiences delightful temperatures that perfectly capture the essence of mid-year warmth. With minimums around 11°C (53°F) and averages hovering at 18°C (65°F), the city remains comfortably mild. By day, the mercury climbs to a pleasant maximum of 27°C (81°F), inviting locals and visitors alike to enjoy outdoor activities and the lush scenery. This month marks a subtle upward trend in temperatures, as August edges higher than its July predecessor, though it remains consistent with the region's overall temperate climate. Whether for a stroll through the vibrant streets or a peaceful moment in nature, the inviting warmth of August makes San Antonio a perfect escape.

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

The chart illustrates August temperature patterns in San Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Antonio, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec636463646464656566646363
Data source: Temperature data for San Antonio 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 Antonio

August in San Antonio, Colombia, marks a notable shift in precipitation, as the rainfall drops to 61 mm (2.4 in) over just 16 days. This represents a significant decrease compared to the heavier downpours of earlier months like March, which saw 394 mm (15.5 in) across 26 days. Following the trend of decreasing rainfall since the lush months of February and March, August's precipitation levels mirror a more tranquil and drier month, further setting the stage for September's anticipated drought-like conditions with only 58 mm (2.3 in) expected. This pattern highlights the region's transition from the peak rainy season to a drier phase, capturing the unique rhythm of San Antonio’s climatic cycle.

August Precipitation Trends in San Antonio

The chart displays monthly precipitation patterns in San Antonio, 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 Antonio, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec190312394279190124766159231456237
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Antonio

In August, San Antonio, Colombia, experiences a significant dip in humidity, dropping to 64%, the lowest level of the year. This decrease follows a peak in May with 88% humidity, highlighting a trend of high humidity during the preceding months of April and May. As the wet season transitions towards drier conditions, August brings a breath of fresh air, making it a more comfortable time for outdoor activities. However, the humidity begins to rise again in September and October, signaling a return to the tropical climate that characterizes the region for much of the year.

August Average Humidity in San Antonio

This chart illustrates the average monthly humidity levels in San Antonio, 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 Antonio is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%78%81%88%85%75%64%70%80%85%82%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Antonio

In August, San Antonio, Colombia, continues to experience an extreme UV Index of 15, maintaining the trend observed throughout the year. With a consistent burn time of just 10 minutes, it's crucial for residents and visitors to prioritize sun safety during this month. The UV Index peaked in March and April at 18, highlighting the region's intense sun exposure, but has since stabilized. This notable consistency in UV levels from June through September illustrates the need for ongoing sun protection strategies. For more detailed information on daily UV Index levels, check out San Antonio UV Index.

Maximum UV Index Levels in San Antonio for August

The chart shows the monthly maximum UV Index (UVI) for San Antonio 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 Antonio typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151618181615151515161413
Data source: San Antonio 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.

August Sunshine in San Antonio

In San Antonio, Colombia, the month of August shines particularly bright, boasting an impressive 330 hours of sunshine. This high point in sunlight follows a trend of increasing daylight throughout the year, with the sunniest months occurring in the middle of the year. After a steady climb from 254 hours in January to 324 hours in July, August stands as a golden peak before the gradual tapering in September with 315 hours. This seasonal progression highlights the tropical allure of the region, where the sun plays a prominent role in enhancing the vibrant local culture and outdoor activities, making August a truly radiant time to explore.

Monthly Sunshine Duration in San Antonio: August Highlighted

The August sunshine duration represents the total number of hours San Antonio experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec254h278h296h285h290h290h324h330h315h285h258h296h
Data source: San Antonio August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Antonio During August

In San Antonio, Colombia, August typically sees a relatively low chance of sunny weather, with only a 10% likelihood of clear skies. This aligns with a general trend throughout the year, where the sun’s presence wanes from March to July, hitting its lowest in April and May. Interestingly, August offers a slight uptick compared to the summer months preceding it, but remains overshadowed by more promising conditions in September and December, which boast substantially higher chances of sun at 24% and 14%, respectively. As such, visitors might want to plan their outdoor activities with caution, especially in this transitional month, likely yielding a mix of sun and clouds.

Percentage of Sunny Days in August in San Antonio

The chart illustrates the percentage of sunny days in San Antonio throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Antonio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%15%8%7%11%9%16%10%24%13%14%14%
Data source: San Antonio August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Antonio in August

In San Antonio, Colombia, August experiences a delightful 12 hours of daylight, consistent with the trend seen from March through October. This stable daylight duration reflects the region's equatorial climate, where variations in daylight are minimal throughout the year. Following the longer days of late spring and summer, August maintains this pattern, offering ample sunshine for both locals and visitors to enjoy outdoor activities. As the year transitions into November, daylight begins to shorten, returning to 11 hours, but for now, August stands out as a peak period of equatorial daylight bliss.

Average Daylight Hours in San Antonio for August

The chart illustrates the variation in daylight duration in San Antonio throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 54m11h 58m12h 4m12h 11m12h 17m12h 20m12h 18m12h 13m12h 7m12h11h 55m11h 53m
Data source: San Antonio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in San Antonio

As August arrives in San Antonio, Colombia, the average wind speed gently picks up to 1.6 m/s (4 mph), mirroring the breezy conditions noted in September. This slight increase from the earlier months, particularly notable compared to the calmer conditions of November and December, adds a refreshing touch to the warm summer atmosphere. The wind begins to transition from a subdued pace—averaging around 1.3 m/s (3 mph) in the early months—to a more lively presence that peaks in July. This seasonal shift invites outdoor activities amidst a backdrop of swaying palms and vibrant landscapes, reinforcing the charm of San Antonio's August winds.

Average August Wind Speed in San Antonio

The chart displays monthly wind speed patterns in San Antonio, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.31.21.41.31.41.81.6 m/s1.61.21.11.1
Data source: San Antonio August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in San Antonio Compares to Other Months

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

August and January in San Antonio exhibit contrasting weather patterns. In August, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). The month sees about 61 mm (2.4 inches) of precipitation over 16 days, accompanied by a relative humidity of 64%. In comparison, January experiences slightly cooler temperatures, with minimums of 9°C (49°F) and maximums of 25°C (78°F), averaging 17°C (63°F). However, January is significantly wetter, receiving 190 mm (7.5 inches) of rain over the same 16 days, with higher humidity at 74%. For more detailed insights, check San Antonio weather in January.

August and February present a interesting contrast in weather patterns. Both months exhibit similar average temperatures, with August having a minimum of 11°C (53°F) and a maximum of 27°C (81°F), while February ranges from 10°C (50°F) to 26°C (79°F). However, February is significantly wetter, receiving 312 mm (12.3 in) of precipitation over 20 days compared to August's 61 mm (2.4 in) across 16 days. Additionally, February's humidity levels are slightly higher at 71%, compared to August's 64%. For a more detailed overview of February weather, you can visit San Antonio weather in February.

When comparing the weather between August and March, both months showcase mild temperatures, with August featuring a slightly higher average temperature of 18°C (65°F) compared to 17°C (64°F) in March. In August, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), while March has a minimum of 10°C (50°F) and a maximum of 26°C (79°F). However, March brings significantly more precipitation, totaling 394 mm (15.5 in) across 26 rainy days, in contrast to August's 61 mm (2.4 in) over 16 days. Additionally, March exhibits higher humidity levels at 78%, compared to August's 64%. For more detailed information, you can explore San Antonio weather in March.

In comparing the weather of August and April, we find some notable differences. August typically experiences milder temperatures, ranging from a minimum of 11°C to a maximum of 27°C, while April's temperatures are slightly warmer, with a minimum of 12°C and a maximum of 25°C. Despite the average temperature being quite similar in both months, April is significantly wetter, seeing 279 mm of precipitation over 25 days compared to August's 61 mm over only 16 days. Additionally, April has higher humidity levels at 81%, compared to August’s 64%. For more detailed insights, you can check San Antonio weather in April.

When comparing the weather in August and May, we notice some distinct differences. August presents a warmer climate with an average temperature of 18°C (65°F) and a maximum reaching up to 27°C (81°F), while May offers a slightly cooler average of the same 18°C (64°F) but a peak of 26°C (79°F). Precipitation is significantly lower in August at 61 mm (2.4 in) over 16 days, in stark contrast to May’s much wetter conditions, receiving 190 mm (7.5 in) over 26 days. Additionally, humidity levels in May are notably higher at 88%, compared to August’s 64%, making August feel drier and more comfortable. For a closer look at May weather specifics, check out San Antonio weather in May.

When comparing the weather in August and June, we notice some interesting differences. August typically enjoys slightly warmer temperatures, with averages hitting around 18°C (65°F) and maximums reaching 27°C (81°F), while June's average remains the same at 18°C (64°F) but with a lower maximum of 25°C (77°F). In terms of precipitation, June is significantly wetter, receiving 124 mm (4.9 in) across 25 days, compared to August's 61 mm (2.4 in) spread over 16 days. Additionally, June's humidity is higher at 85%, compared to 64% in August, creating a noticeably different feel in the air. For more details, check out San Antonio weather in June.

In comparing the weather patterns of August and July, we observe that both months experience similar temperature ranges, with minimum temperatures around 11°C (53°F) and average temperatures hovering around 18°C (65°F). However, August sees slightly warmer maximum temperatures at 27°C (81°F) compared to July's peak of 26°C (79°F). Precipitation also differs; while July receives 76 mm (3.0 in) over 24 rainy days, August has reduced rainfall at 61 mm (2.4 in) over 16 days, indicating a drier month. Furthermore, humidity levels are higher in July at 75% compared to 64% in August, contributing to a more comfortable feel during the latter. For more insights on July’s weather, check San Antonio weather in July.

August and September display a gradual transition in weather conditions. In August, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average of 18°C (65°F). The month sees approximately 61 mm (2.4 in) of precipitation over 16 days, accompanied by a relative humidity of 64%.

In September, the weather remains quite similar, with minimum temperatures still at 11°C (51°F) but with a slightly higher average of 19°C (66°F) and a maximum of 28°C (82°F). Precipitation decreases marginally to 58 mm (2.3 in) over just 11 days, while humidity rises slightly to 69%. For a more detailed look at September weather, you can check San Antonio weather in September.

August and October showcase similar average temperatures, with both months hovering around 18°C (65°F). However, October tends to be rainier, accumulating a significant 231 mm (9.1 in) of precipitation over 22 days, compared to August's 61 mm (2.4 in) over 16 days. Additionally, October experiences higher humidity levels at 80%, compared to August's 64%. The slight increase in minimum temperature from August to October (11°C to 12°C) is minimal, but the overall feel of October is often more humid and wetter. For more details, you can explore San Antonio weather in October.

When comparing the weather in August and November, we see some notable differences. August typically experiences a milder temperature range, with a minimum of 11°C (53°F) and an average of 18°C (65°F), capped at a maximum of 27°C (81°F). In contrast, November has a slightly lower average temperature of 17°C (64°F), though the temperature remains similar at the minimum and maximum ends. However, November is significantly wetter, with precipitation reaching 455 mm (17.9 in) over 27 days, compared to August's 61 mm (2.4 in) over just 16 days. Additionally, humidity levels are higher in November, averaging 85%, compared to August's 64%. For more details about the climate in November, you can check San Antonio weather in November.

In comparing the weather between August and December, we observe slight variations in temperature and significant differences in precipitation and humidity. August experiences a temperature range from a minimum of 11°C (53°F) to a maximum of 27°C (81°F), with an average temperature of 18°C (65°F) and a total precipitation of 61 mm (2.4 in) over 16 days. In contrast, December has a more moderate temperature range, with a minimum of 10°C (50°F) and a maximum of 25°C (77°F), resulting in an average of 17°C (64°F). However, December sees much higher rainfall, totaling 237 mm (9.3 in) over 21 days, along with increased humidity levels of 82% compared to August's 64%. For more detailed information, visit San Antonio weather in December.

Compare San Antonio's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in San Antonio

As August rolls into San Antonio, the weather showcases a unique blend of warmth and humidity that sets it apart from other months. With average temperatures hovering around a mild 18°C, residents and visitors alike can expect pleasant days, even though the maximums can reach a balmy 27°C. This month also brings a notable increase in precipitation, with rain gracing the area on roughly half the days, which contributes to the city's lush greenery. While the humidity remains relatively high, it adds a tropical feel to the atmosphere, making August a distinctive time to experience the charm of San Antonio. For more insights into the year-round weather patterns, be sure to check out San Antonio Climate.