September Weather in San Agustin, Colombia

Last updated: August 21, 2025

In September, San Agustin, Colombia experiences a mild climate characterized by a maximum temperature of 22°C (71°F) and an average of 14°C (57°F), offering a comfortable atmosphere for exploration. Visitors should be prepared for cooler nights, with temperatures dipping to a minimum of 7°C (45°F). This month is notably wet, as the region receives approximately 97 mm (3.8 in) of rainfall over 22 days, contributing to lush landscapes and vibrant greenery. With a humidity level of 53%, the weather feels pleasantly refreshing, making September an intriguing time to discover the area's breathtaking surroundings.

September Temperature in San Agustin

In September, temperatures in San Agustin, Colombia, showcase a gentle transition towards the slightly cooler months, with minimums settling around 7°C (45°F) and a moderate maximum of 22°C (71°F). The average temperature hovers at a comfortable 14°C (57°F), providing a pleasant atmosphere for visitors and residents alike. This month marks the end of winter, reflecting a slight increase in warmth from the preceding cooler July and August, where averages dipped to 13°C (56°F) and 13°C (57°F) respectively. With conditions gradually warming as the year progresses, September's weather encourages outdoor exploration while still retaining a cozy charm perfect for enjoying the vibrant landscapes of this enchanting region.

September Weather in San Agustin: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Agustin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Agustin, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec596059595857565657586059
Data source: Temperature data for San Agustin 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.

September Precipitation in San Agustin

In September, San Agustin experiences a notable dip in precipitation, with only 97 mm (3.8 in) of rain over 22 days. This marks a significant decrease from the heavy rains of the earlier months, such as March and April, which often see upwards of 240 mm. The shift to drier weather in September suggests a transition as the region moves away from the peak rainy season. This decrease not only offers a brief respite before the rainfall resumes in October, using 142 mm (5.6 in) over approximately the same number of days, but also allows for clearer skies and more outdoor activities. The month’s moderation in precipitation is crucial for local agriculture, giving farmers a much-needed window to tend to their crops before the rains pick up again.

September Precipitation Trends in San Agustin

The chart displays monthly precipitation patterns in San Agustin, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In San Agustin, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13919724322620120520413297142198126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Agustin

In September, San Agustin experiences a notable drop in humidity, hitting a comfortable 53%. This marks a striking contrast to the peak levels seen in the previous months, particularly in May and June, when humidity soared to an intense 93%. Throughout the year, there appears to be a cyclical trend, with humidity levels generally rising as the year progresses, peaking in the late spring and early summer before tapering off into the dryer months of late summer and early autumn. September, along with August, stands out as one of the driest periods, inviting a refreshing respite before the humidity begins to climb again in the following months. Thus, this transitional month offers a unique blend of relief and lingering warmth, making it a truly distinct time in San Agustin's climate journey.

September Average Humidity in San Agustin

This chart illustrates the average monthly humidity levels in San Agustin, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in San Agustin is approximately {2}%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in San Agustin

In September, the UV Index in San Agustin, Colombia registers at 15, maintaining its status within the extreme exposure category. This follows a trend observed throughout the year, where high levels of UV radiation are consistently reported, particularly from January to April, peaking at 18 in March and April. While September's index shows a slight dip from the peak months, the burn time remains a swift 10 minutes, emphasizing the need for sun protection even during this transitional month. With only slight fluctuations, the overall pattern illustrates a year-round requirement for vigilance against UV exposure. For more detailed insights, check out San Agustin UV Index.

Maximum UV Index Levels in San Agustin for September

The chart shows the monthly maximum UV Index (UVI) for San Agustin in September, 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 September, the maximum UV index in San Agustin typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161718181614151615161513
Data source: San Agustin September 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.

September Sunshine in San Agustin

As September unfolds in San Agustin, Colombia, the region basks in an impressive 319 hours of sunlight, showcasing a delightful continuation of the sun-soaked trend observed throughout the preceding months. Building on the soaring 325 hours of August, September’s warm embrace hints at the tail end of a radiant peak in sunshine that typically begins in mid-summer. The trend is clear: from a modest 246 hours in January, daylight hours have steadily climbed, reaching a high in mid-year before slightly tapering off in the fall months. This abundance of sunlight not only brightens the days but also creates an inviting atmosphere for exploring the rich cultural and natural beauty of the area. As autumn approaches, the lingering warmth of September promises a perfect backdrop for adventure and relaxation alike.

Monthly Sunshine Duration in San Agustin: September Highlighted

The September sunshine duration represents the total number of hours San Agustin experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec246h272h279h264h274h282h293h325h319h293h255h301h
Data source: San Agustin September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Agustin During September

In September, San Agustin, Colombia, enjoys a notably higher likelihood of sunshine, with a 27% chance of clear skies. This is a marked improvement compared to the preceding months, such as January at 22% and the summer months, where chances hover around a mere 9% to 12%. As the region transitions from the rainy season, September stands out as a sweet spot for sun-seekers. This trend toward sunnier days not only invites exploration of San Agustin's breathtaking landscapes but also heralds the perfect opportunity to bask in its vibrant culture.

Percentage of Sunny Days in September in San Agustin

The chart illustrates the percentage of sunny days in San Agustin throughout the year, with September 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 Agustin experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%11%7%7%9%12%12%9%27%14%15%14%
Data source: San Agustin September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Agustin in September

In September, as in every other month of the year, San Agustin, Colombia enjoys a consistent 12 hours of daylight. This remarkable uniformity in daylight duration reflects the region's proximity to the equator, where the sun rises and sets with impressive regularity. Whether it's the vibrant greens of the surrounding landscapes or the rich cultural experiences, the steady light of September ensures that residents and visitors alike can fully embrace the beauty of this enchanting destination throughout the day. This perpetual balance of day and night creates an ideal backdrop for both exploration and relaxation, reminding us of the simple yet profound rhythms of nature.

Average Daylight Hours in San Agustin for September

The chart illustrates the variation in daylight duration in San Agustin throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h12h 2m12h 5m12h 8m12h 11m12h 13m12h 12m12h 9m12h 6m12h 3m12h 1m12h
Data source: San Agustin daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in San Agustin

As September settles over San Agustin, the average wind speed holds steady at 1.6 m/s (4 mph), reflecting a gentle consistency characteristic of the region. This month, like its preceding August, showcases slightly more robust breezes compared to earlier in the year. The winds begin to shift ever so subtly as the year progresses, from a calm 1.4 m/s (3 mph) in the spring months of March and May to a refreshing uptick as summer transitions into fall. Such conditions create an inviting atmosphere for visitors, perfectly complementing the lush landscapes and rich cultural tapestry of this Colombian gem. With this balance of tranquility and gentle movement, September in San Agustin embraces the beauty of breezy moments in a climate that feels just right.

Average September Wind Speed in San Agustin

The chart displays monthly wind speed patterns in San Agustin, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.61.41.51.41.51.51.61.6 m/s1.51.41.4
Data source: San Agustin September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in San Agustin Compares to Other Months

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

In September, the weather tends to be milder with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 22°C (71°F), while the average hovers around 14°C (57°F). This month experiences about 97 mm (3.8 in) of precipitation over approximately 22 days, contributing to a humidity level of 53%. In contrast, January sees slightly warmer conditions with minimum temperatures at 7°C (44°F) and maximums reaching 25°C (77°F), resulting in an average temperature of 15°C (59°F). However, January is also wetter, recording 139 mm (5.5 in) of rain over about 20 days and a higher humidity level of 72%. For more specific details about January weather conditions, you can visit San Agustin weather in January.

In comparing the weather between September and February, both months feature a similar minimum temperature of around 7°C (45°F), but February averages slightly warmer with a mean temperature of 15°C (60°F) compared to September's 14°C (57°F). The maximum temperatures are also higher in February, reaching up to 24°C (75°F), while September peaks at 22°C (71°F). However, February experiences significantly more rainfall, with 197 mm (7.8 in) of precipitation over 24 days, in contrast to September's 97 mm (3.8 in) across 22 days. Additionally, February sees a higher humidity level at 66%, compared to September's 53%. For more detailed information, you can check San Agustin weather in February.

September and March present quite different weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). It experiences a total precipitation of 97 mm (3.8 in) over 22 rainy days and maintains a humidity level of 53%. In contrast, March offers slightly warmer temperatures, with minimums of 8°C (47°F), averages of 15°C (60°F), and maximums reaching 24°C (76°F). However, it also brings significantly more rainfall, totaling 243 mm (9.5 in) over 29 days, and higher humidity at 74%. For a deeper look at March's weather specifics, you can visit this link: San Agustin weather in March.

In comparing the weather of September and April, we see notable differences in temperature and precipitation patterns. September typically boasts a temperature range from a minimum of 7°C (45°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). In contrast, April experiences slightly warmer temperatures, with lows of 9°C (49°F) and highs reaching 23°C (74°F), averaging around 15°C (59°F). Precipitation also sets these months apart, as September records 97 mm (3.8 in) over 22 days, while April sees significantly more rainfall at 226 mm (8.9 in) across 27 days. Additionally, April has a higher humidity level at 83%, compared to September's 53%. For more detailed information on weather conditions during April, you can check San Agustin weather in April.

September and May exhibit distinct weather patterns. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences considerable rainfall, totaling 97 mm (3.8 in) across 22 days, and a moderate humidity of 53%. In contrast, May sees slightly warmer temperatures, with a minimum of 9°C (49°F) and a similar maximum of 22°C (72°F), resulting in an average temperature of 15°C (59°F). However, May is notably wetter, with precipitation reaching 201 mm (7.9 in) over 30 days, accompanied by high humidity levels of 93%. For more detailed insights on weather conditions, check San Agustin weather in May.

In comparing the weather between September and June, both months exhibit similar average temperatures, hovering around 14°C (57°F). September experiences a slightly cooler minimum temperature of 7°C (45°F), compared to June's minimum of 9°C (48°F). However, June is notably wetter, with a total precipitation of 205 mm (8.1 in) over 29 days, while September has lower precipitation at 97 mm (3.8 in) across 22 days. Additionally, June’s humidity level is markedly higher at 93%, compared to September's 53%, making June feel more humid and damp overall. For a more detailed view of the weather patterns in June, check out San Agustin weather in June.

When comparing the weather in September to July, both months exhibit similar temperature ranges, with minimums around 7°C (45°F) and maximums reaching approximately 22°C (72°F). However, September tends to be slightly warmer overall, averaging 14°C (57°F) compared to July's average of 13°C (56°F). One notable difference is in precipitation and humidity: September receives less rainfall at 97 mm (3.8 in) over 22 days, whereas July is considerably wetter with 204 mm (8.0 in) across 28 days, contributing to a higher humidity level of 84%. For more detailed insights, you can check San Agustin weather in July.

September weather shows a slight increase in average temperature compared to August, with a minimum of 7°C (45°F) and a maximum of 22°C (71°F), while August has an average minimum of 7°C (44°F) and a maximum of 21°C (70°F). Although both months experience similar humidity levels, September is drier, receiving 97 mm (3.8 in) of precipitation over 22 days, compared to August's 132 mm (5.2 in) over 24 days. This decrease in rainfall and lower humidity in September suggests a gradual transition towards drier and cooler conditions. For a detailed look at August weather specifics, you can refer to San Agustin weather in August.

September and October exhibit notable differences in weather patterns. September typically experiences temperatures ranging from a minimum of 7°C (45°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month sees 97 mm (3.8 in) of precipitation over 22 days and maintains a humidity level of 53%. In contrast, October offers slightly warmer temperatures, with minimums remaining at 7°C (45°F) but peaking at 24°C (75°F) and averaging 15°C (59°F). Precipitation increases significantly to 142 mm (5.6 in) over 27 days, accompanied by higher humidity at 67%. For more detailed insights, you can check San Agustin weather in October.

In comparing the weather of September and November, we observe a notable increase in both temperature and humidity levels in November. September presents a cooler climate with average temperatures ranging from 7°C (45°F) to 22°C (71°F) and a moderate humidity of 53%. In contrast, November shows slightly warmer temperatures, with averages between 9°C (49°F) and 23°C (74°F), accompanied by a significant rise in humidity to 78%. Additionally, November experiences increased precipitation, totaling 198 mm (7.8 in) over 27 days, compared to September's 97 mm (3.8 in) over 22 days. For more detailed information, you can check San Agustin weather in November.

In September, the weather features a minimum temperature of 7°C (45°F) and an average of 14°C (57°F), with maximum temperatures reaching 22°C (71°F). The month sees considerable rainfall, with 97 mm (3.8 in) of precipitation over 22 days and a humidity level of 53%. In contrast, December experiences slightly milder temperatures, with a minimum of 8°C (47°F) and an average of 15°C (60°F), peaking at 23°C (73°F). However, December is wetter, receiving 126 mm (5.0 in) of precipitation over 24 days, and the humidity rises significantly to 85%. For more detailed information, you can check San Agustin weather in December.

Compare San Agustin's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in San Agustin

In September, San Agustin experiences a distinct shift in weather, marked by cooler temperatures and increased rainfall compared to the drier months of summer. The average temperature dips, offering a refreshing respite from the heat, while the high humidity adds a tropical feel to the lush landscape. With nearly three-quarters of the month seeing rainfall, this period is often characterized by its vibrant greenery and the soothing sound of rain. For those eager to explore this picturesque region, September’s unique climate fosters an atmosphere that can enhance your experience. To learn more about what to expect throughout the year, check out San Agustin Climate.