September Weather in Concepcion de Ataco, El Salvador

Last updated: August 21, 2025

In September, Concepción de Ataco experiences a warm and humid climate, with maximum temperatures reaching up to 31°C (88°F) and an average of 25°C (77°F). The nights bring a refreshing coolness, with minimum temperatures around 21°C (70°F). This month is characterized by significant rainfall, totaling 391 mm (15.4 in) spread over 30 days, resulting in a lush, vibrant landscape. The humidity levels hover at 77%, adding to the tropical feel of the region, making it an ideal, albeit rainy, time for visitors to witness the natural beauty of this Salvadoran gem.

September Temperature in Concepcion de Ataco

September in Concepción de Ataco, El Salvador, offers a pleasant climate, with temperatures that reflect the region's tropical charm. The month typically sees minimums hovering around 21°C (70°F), creating a comfortably warm atmosphere. As daytime progresses, average temperatures reach about 25°C (77°F), making it ideal for exploring the lush landscapes or enjoying local festivities. With highs peaking at 31°C (88°F), the weather remains warm but manageable, signaling a transition from the more intense heat of the earlier months. Overall, September's milder temperatures mark it as a lovely time to experience the beauty and culture of this enchanting town.

September Weather in Concepcion de Ataco: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Concepcion de Ataco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Concepcion de Ataco, 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).
JanFebMarAprMayJunJulAugSepOctNovDec767778797877797877777776
Data source: Temperature data for Concepcion de Ataco 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 Concepcion de Ataco

In September, Concepcion de Ataco experiences its wettest month of the year, with a remarkable precipitation total of 391 mm (15.4 inches) over 30 days of rainfall. This substantial downpour marks a peak in the wet season, continuing the trend established in the preceding months, where heavy rains are the norm. Notably, it follows August's high totals and sets the stage for an equally rainy October, which sees just slightly less precipitation at 389 mm (15.3 inches). This pattern underscores a consistent and robust rainy season, providing vital moisture for the region but also challenging residents with nearly continuous precipitation throughout the month.

September Precipitation Trends in Concepcion de Ataco

The chart displays monthly precipitation patterns in Concepcion de Ataco, 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 Concepcion de Ataco, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7714713103702083313913897311
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Concepcion de Ataco

In September, Concepcion de Ataco experiences a notable continuation of its humid season, with humidity levels reaching 77%. This marks a slight decrease from the peak of 79% observed in August but still indicates a persistently moist atmosphere characteristic of the region's late-winter transitional period. The humidity begins to stabilize here, remaining consistent through October, which could suggest an approaching end to the wetter months. Prior to September, humidity had already started climbing from 63% in January to a peak in July, illustrating a clear upward trend during the heart of the rainy season. As the year progresses into the drier months, the gradual decline hints at a shift towards more comfortable conditions in the upcoming fall.

September Average Humidity in Concepcion de Ataco

This chart illustrates the average monthly humidity levels in Concepcion de Ataco, 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 Concepcion de Ataco is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%62%59%59%59%68%78%79%77%77%75%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Concepcion de Ataco

As September rolls into Concepcion de Ataco, El Salvador, the UV Index maintains a challenging level of 13, categorized as extreme. This intensity underscores a broader trend observed from January through September, where the UV Index consistently stays above 11, reflecting the region's high solar exposure year-round. Even as we approach the end of the dry season, sun safety remains paramount, with a burn time of just 10 minutes during these peak months. Interestingly, October sees a slight dip to 12, but UV radiation levels still demand caution. Visitors and residents alike should stay informed and protected as they enjoy the beautiful surroundings. For more detailed insights, check out the Concepcion de Ataco UV Index.

Maximum UV Index Levels in Concepcion de Ataco for September

The chart shows the monthly maximum UV Index (UVI) for Concepcion de Ataco 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 Concepcion de Ataco typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131312109
Data source: Concepcion de Ataco 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 Concepcion de Ataco

In September, Concepcion de Ataco basks in an impressive 297 hours of sunshine, showcasing a delightful continuation of the region's abundant sunlight. Following the vibrant summer months of July and August, which recorded 327 and 311 hours respectively, September maintains a noteworthy brightness that keeps the landscape lively and inviting. This month’s sunshine slightly dips from the summer peak, yet it still exceeds the monthly averages seen earlier in the year, including January through June. As autumn approaches, the sun remains a steadfast companion, setting the stage for beautiful days and stunning sunsets in this charming El Salvadoran town.

Monthly Sunshine Duration in Concepcion de Ataco: September Highlighted

The September sunshine duration represents the total number of hours Concepcion de Ataco 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.
JanFebMarAprMayJunJulAugSepOctNovDec262h292h327h319h313h283h327h311h297h286h309h325h
Data source: Concepcion de Ataco September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Concepcion de Ataco During September

In September, the likelihood of sunny weather in Concepcion de Ataco takes a notable dip, with only a 20% chance of sunshine. This decline continues the downward trend from the dry season, characterized by much higher probabilities in earlier months like February (81%) and March (72%). As the region transitions further into the rainy season, it’s clear that September is one of the cloudiest months, intensifying the arrival of frequent rainfall that begins in late spring. If you're planning a visit, be prepared for those occasional sunbreaks amidst the typically overcast skies.

Percentage of Sunny Days in September in Concepcion de Ataco

The chart illustrates the percentage of sunny days in Concepcion de Ataco 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 Concepcion de Ataco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec70%81%72%43%32%13%28%13%20%29%60%75%
Data source: Concepcion de Ataco September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Concepcion de Ataco in September

In September, Concepcion de Ataco enjoys a consistent 12 hours of daylight, continuing the summer-like trend established since March. This steady daylight duration reflects the region's tropical climate, where daylight remains relatively unchanged throughout much of the year. Following the peak of 12 hours in the warmer months of March through August, September seamlessly transitions, painting the landscape in vibrant hues as days gradually begin to shorten with the approach of October. This rhythmic cycle of light not only enhances the charm of this picturesque town but also supports a vibrant ecosystem, making it a delightful time for both residents and visitors alike.

Average Daylight Hours in Concepcion de Ataco for September

The chart illustrates the variation in daylight duration in Concepcion de Ataco throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 41m12h 3m12h 26m12h 45m12h 54m12h 49m12h 32m12h 10m11h 47m11h 28m11h 18m
Data source: Concepcion de Ataco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Concepcion de Ataco

In September, the winds in Concepción de Ataco in El Salvador whisper softly, with an average speed of just 1.4 m/s (3 mph). This marks a continuation of a trend seen through the summer months, where wind speeds have gradually decreased from the breezier days of earlier in the year. Following a peak in the first part of the year, where averages hovered around 2.5 m/s during January and February, the gentle currents of September create a serene atmosphere, laying the groundwork for the transitional weather into fall. As the region moves into October, the wind maintains this soft cadence, suggesting a calming shift in climatic patterns that locals and visitors alike find soothing. The decrease in wind speed captures the essence of the month—a time for reflection amidst nature's tranquility, perfect for those who appreciate a slower pace and the beauty of this vibrant town.

Average September Wind Speed in Concepcion de Ataco

The chart displays monthly wind speed patterns in Concepcion de Ataco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.52.42.21.61.51.71.51.4 m/s1.42.32.2
Data source: Concepcion de Ataco September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Concepcion de Ataco Compares to Other Months

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

September and January display contrasting weather patterns. In September, temperatures range from a mild minimum of 21°C (70°F) to a peak of 31°C (88°F), with an average of 25°C (77°F). The month is marked by significant rainfall, totaling 391 mm (15.4 in) over 30 days, contributing to a high humidity level of 77%. In contrast, January features slightly cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 32°C (91°F), averaging 24°C (76°F). The weather is much drier, with only 7 mm (0.3 in) of precipitation occurring over just 1 day, and a lower humidity of 63%. For more about the weather specifics, check out Concepcion de Ataco weather in January.

September and February in Concepcion de Ataco showcase distinctly different weather patterns. September experiences warmer temperatures, with a minimum of 21°C (70°F), averaging 25°C (77°F), and peaking at 31°C (88°F). However, it also brings significant rainfall, accumulating 391 mm (15.4 in) over 30 days and a high humidity level of 77%. In contrast, February offers a slightly cooler climate, with minimum temperatures of 16°C (61°F) and maximums reaching 33°C (92°F), while maintaining the same average of 25°C (77°F). Rainfall is minimal in February, with only 7 mm (0.3 in) over just 2 days, and humidity levels drop to 62%. For more detailed insights into February weather, you can check Concepcion de Ataco weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). The month is characterized by high humidity at 77% and substantial rainfall, accumulating 391 mm (15.4 in) over 30 days. In contrast, March offers slightly cooler temperatures, with a minimum of 18°C (65°F) and a maximum of 33°C (92°F), averaging 26°C (79°F). This month experiences significantly less precipitation, only 14 mm (0.6 in) over just 4 days, and lower humidity at 59%. For more detailed information about March weather, visit Concepcion de Ataco weather in March.

In September, temperatures generally range from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). However, this month also brings substantial rainfall, totaling 391 mm (15.4 in) over 30 days, contributing to a high humidity level of 77%. In contrast, April exhibits slightly warmer conditions, with temperatures reaching a maximum of 33°C (92°F) and an average of 26°C (79°F), while the minimum hovers around 20°C (67°F). Rainfall is significantly lower in April, at just 70 mm (2.8 in) over 15 days, and humidity is more moderate at 59%. For more detailed insights, you can check Concepcion de Ataco weather in April.

When comparing the weather in September and May, both months present warm temperatures, though May tends to be slightly hotter overall. September showcases temperatures ranging from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). In contrast, May experiences a minimum of 21°C (69°F), an average of 26°C (79°F), and peaks at 32°C (90°F). Precipitation levels are higher in September at 391 mm (15.4 in) over 30 days, while May receives 310 mm (12.2 in) across 28 days, contributing to a drier atmosphere as reflected in the lower humidity of 59% in May compared to September's 77%. For more details, you can refer to Concepcion de Ataco weather in May.

When comparing the weather in September and June, both months feature similar minimum temperatures around 21°C (70°F) and average temperatures close to 25°C (77°F). However, June tends to be slightly warmer with a maximum temperature peaking at 32°C (91°F) compared to September’s maximum of 31°C (88°F). Precipitation levels are quite high in both months, with September receiving 391 mm (15.4 in) over 30 days and June recording 370 mm (14.6 in) over 28 days. Additionally, September has a higher humidity level of 77%, while June's humidity is a bit lower at 68%. For more specific details, you can explore Concepcion de Ataco weather in June.

When comparing the weather in September and July, both months exhibit warm temperatures, with July slightly edging out September in terms of average and maximum temperatures. In July, the minimum temperature is the same as September at 21°C (70°F), while the average temperature reaches 26°C (79°F) and the maximum hits 32°C (90°F). In contrast, September has an average temperature of 25°C (77°F) and a maximum of 31°C (88°F).

However, September is notably wetter, receiving 391 mm (15.4 in) of precipitation over 30 days compared to July's 208 mm (8.2 in) over 26 days. Despite the increased rainfall, the humidity remains constant at 77% for both months, creating a consistently humid environment. For a more detailed look at July weather, you can visit Concepcion de Ataco weather in July.

In comparing the weather of September to August, both months exhibit similar temperature ranges, with September experiencing a minimum of 21°C (70°F), an average of 25°C (77°F), and a maximum of 31°C (88°F). August, on the other hand, sees a slightly higher maximum temperature of 32°C (90°F) while maintaining the same minimum and average temperatures. Regarding precipitation, September is wetter, with 391 mm (15.4 in) over 30 days compared to August's 331 mm (13.0 in) over 28 days. Humidity levels remain comparable, with September at 77% and August at a slightly higher 79%. For a detailed look at the weather conditions in August, you can visit Concepcion de Ataco weather in August.

September and October exhibit quite similar weather patterns, yet there are subtle differences worth noting. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average temperature of 25°C (77°F). The month also sees substantial precipitation, totaling 391 mm (15.4 in) over 30 days, accompanied by a consistent humidity level of 77%. Conversely, October maintains similar temperature averages, with a slightly lower minimum of 20°C (68°F) and a maximum of 31°C (89°F), while the average remains steady at 25°C (77°F). Precipitation in October drops slightly to 389 mm (15.3 in) across 28 days, keeping the humidity at the same level of 77%. For more detailed insights, you can visit Concepcion de Ataco weather in October.

September and November weather exhibit notable differences despite having similar average temperatures. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 25°C (77°F). However, September is characterized by significant rainfall, totaling 391 mm (15.4 in) over 30 days, contributing to a high humidity level of 77%. In contrast, November features slightly cooler nights with a minimum of 18°C (65°F) and a similar maximum of 32°C (89°F). Rainfall is much less pronounced in November, amounting to 73 mm (2.9 in) over just 13 days, resulting in a marginally lower humidity of 75%. For more specific details, you can visit Concepcion de Ataco weather in November.

In September, the weather is characterized by warmer temperatures and higher humidity, with daytime highs reaching up to 31°C (88°F) and significant rainfall totaling 391 mm (15.4 in) across 30 days. This creates a lush and vibrant atmosphere, albeit with frequent wet conditions and humidity levels around 77%. In contrast, December presents a much drier and somewhat cooler climate, with daily temperatures varying from a minimum of 17°C (63°F) to a maximum of 32°C (89°F) while experiencing only 11 mm (0.4 in) of precipitation over just three days, resulting in lower humidity at 66%. For more detailed information, you can check Concepcion de Ataco weather in December.

Compare Concepcion de Ataco's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Concepcion de Ataco

September in Concepción de Ataco is characterized by warm temperatures and notably high humidity, creating a humid atmosphere that distinguishes it from other months. With nearly every day experiencing some form of precipitation, this month stands out as particularly wet, leading to lush green landscapes that enhance the area's natural beauty. While daytime highs can reach up to a steamy 31°C, the consistent rain and cooler evenings provide a refreshing contrast. For a more detailed overview of the climatic conditions, visit Concepcion de Ataco Climate.