September Weather in Chapultepec (Santo Domingo), Mexico

Last updated: April 22, 2025

September in Chapultepec (Santo Domingo) experiences a vibrant climate characterized by an average temperature of 21°C (70°F), peaking at a maximum of 31°C (88°F) during the day. However, the evenings bring a refreshing relief with minimum temperatures dropping to 13°C (55°F). This month is also noted for substantial rainfall, with a total precipitation of 267 mm (10.5 in) falling over 22 days, contributing to the region's lush landscape. The high humidity level of 82% often enhances the tropical feel, making September both a lush and dynamic time in Chapultepec.

September Temperature in Chapultepec (Santo Domingo)

In September, Chapultepec (Santo Domingo) experiences a gentle transition as summer begins to wane. With minimum temperatures around 13°C (55°F) and an average of 21°C (70°F), the weather remains pleasantly warm but slightly cooler than the peak summer months. The maximum temperature hovers at 31°C (88°F), providing an ideal backdrop for outdoor activities and exploration. As the month unfolds, you might notice a subtle shift towards cooler evenings, reminiscent of the approaching fall, yet daytime warmth persists, making September a delightful time to enjoy the vibrant atmosphere of this enchanting locale.

September Weather in Chapultepec (Santo Domingo): Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chapultepec (Santo Domingo), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec646771747471717170696764
Data source: Temperature data for Chapultepec (Santo Domingo) 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 Chapultepec (Santo Domingo)

In September, Chapultepec experiences a remarkable surge in precipitation, averaging an impressive 267 mm (10.5 in) over 22 days of rainfall, marking it as the wettest month of the year. This significant increase follows the monsoon-like conditions of August and culminates a progressive rise in rainfall from the dry winter months. The combination of high rainfall and frequent precipitation days contributes to lush vegetation and vibrant landscapes, making September a transformative period for the local environment. This trend is reflective of the broader seasonal pattern, where the rainfall builds gradually from just 3 mm in January to peak in September, providing a crucial water supply for the region.

September Precipitation Trends in Chapultepec (Santo Domingo)

The chart displays monthly precipitation patterns in Chapultepec (Santo Domingo), 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.
JanFebMarAprMayJunJulAugSepOctNovDec339248820813919126791162
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chapultepec (Santo Domingo)

In September, Chapultepec (Santo Domingo) experiences a notable rise in humidity, reaching 82%. This increase comes after a summer of lower humidity levels, with July peaking at a comfortable 68%. As the year transitions into the fall, humidity levels begin to climb again, foreshadowing the wetter months ahead. Following September, October sees a significant spike to 91%, marking the start of a trend where humidity remains consistently high throughout the last quarter of the year. This fluctuation highlights the region's shift from warmer, drier conditions to cooler, more humid extremes, providing residents and visitors alike with a vivid reminder of nature's rhythm in this vibrant locale.

September Average Humidity in Chapultepec (Santo Domingo)

This chart illustrates the average monthly humidity levels in Chapultepec (Santo Domingo), with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chapultepec (Santo Domingo)

As September rolls around in Chapultepec (Santo Domingo), the UV Index remains steady at 14, categorizing the risk as extreme. This trend of high UV exposure continues from the summer months, where UV values peaked at 15 in July, and have consistently remained between 14 and 15 since April. With a burn time of just 10 minutes, it's crucial for residents and visitors to take protective measures, such as wearing sunscreen and protective clothing. This pattern indicates that September, much like its preceding months, demands vigilance against the sun's rays, underscoring the need for awareness of sun safety throughout the season. For more detailed information, check out the Chapultepec (Santo Domingo) UV Index.

Maximum UV Index Levels in Chapultepec (Santo Domingo) for September

The chart shows the monthly maximum UV Index (UVI) for Chapultepec (Santo Domingo) 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141415141412109
Data source: Chapultepec (Santo Domingo) 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 Chapultepec (Santo Domingo)

September in Chapultepec, Mexico, ushers in a delightful blend of warm days and gentle breezes, with 287 hours of sunshine, showcasing a slight dip from the radiant heights of summer. The sun-soaked months from May to August consistently deliver over 300 hours, peaking in May at 330 hours. However, as fall approaches, September's sunlight gracefully transitions, still providing ample warmth but hinting at the cooler days ahead. This pattern reflects the vibrant seasonal shifts in Chapultepec, where the abundance of sunlight slowly begins to wane while still keeping the charm of summer alive. As the year progresses into October, the resilience of sunshine returns with 302 hours, reminding us of the area's enduring warmth well into the autumn months.

Monthly Sunshine Duration in Chapultepec (Santo Domingo): September Highlighted

The September sunshine duration represents the total number of hours Chapultepec (Santo Domingo) 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.
JanFebMarAprMayJunJulAugSepOctNovDec245h280h321h320h330h296h328h315h287h302h296h300h
Data source: Chapultepec (Santo Domingo) September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chapultepec (Santo Domingo) During September

September in Chapultepec (Santo Domingo) typically signifies the transition into the rainy season, marked by a notable decrease in sunny weather, with only a 20% chance of sunshine. This decline follows a pattern observed in the preceding months of August (33%) and July (29%), where the likelihood of sunny days diminishes significantly. The trend becomes clearer as you move from the optimistic averages of early months—like February’s striking 88% and March’s 77%—toward the cooler autumn months. As the sun retreats in September, residents and visitors alike may need to prepare for frequent showers, contrasting sharply with the brighter days that characterize earlier parts of the year.

Percentage of Sunny Days in September in Chapultepec (Santo Domingo)

The chart illustrates the percentage of sunny days in Chapultepec (Santo Domingo) 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 Chapultepec (Santo Domingo) experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%88%77%71%46%10%29%33%20%36%66%85%
Data source: Chapultepec (Santo Domingo) September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chapultepec (Santo Domingo) in September

In September, Chapultepec, located in Santo Domingo, Mexico, enjoys a pleasant 12 hours of daylight, continuing the trend from August. As summer transitions to fall, daylight durations see a gradual decline after peaking at 13 hours in May, June, and July. The light begins to wane, hinting at the approaching autumn months, where October will bring a slight reduction to 11 hours. This rhythmic cycle of daylight not only shapes daily life but also beautifully marks the seasonal changes in this vibrant region, creating a unique atmosphere as the days grow shorter.

Average Daylight Hours in Chapultepec (Santo Domingo) for September

The chart illustrates the variation in daylight duration in Chapultepec (Santo Domingo) throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 8m11h 32m12h 2m12h 33m13h13h 12m13h 5m12h 42m12h 12m11h 41m11h 14m11h 1m
Data source: Chapultepec (Santo Domingo) daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Chapultepec (Santo Domingo)

As summer transitions into autumn, September in Chapultepec brings a gentle breeze with an average wind speed of 1.6 m/s (4 mph), marking a notable dip from the slightly brisker days of previous months. This shift reflects a trend of decreasing wind speeds as the year progresses, dipping to the year's lowest point in September, before gradually picking up again in October. The calming winds of this month create a serene atmosphere, perfect for enjoying the rich cultural tapestry that Chapultepec offers. Visitors can relish in the tranquil environment, underscoring the beauty of this historic park as it embraces the soft whispers of the changing season.

Average September Wind Speed in Chapultepec (Santo Domingo)

The chart displays monthly wind speed patterns in Chapultepec (Santo Domingo), 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.72.82.62.01.62.32.11.6 m/s2.12.82.4
Data source: Chapultepec (Santo Domingo) September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Chapultepec (Santo Domingo) Compares to Other Months

The weather in Chapultepec (Santo Domingo) changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Chapultepec (Santo Domingo) and find detailed weather information for every month.

In September, the weather tends to be quite warm and humid, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 31°C (88°F) and significant precipitation of 267 mm (10.5 in) over 22 days. In contrast, January offers a cooler and drier environment, featuring an average temperature of 18°C (64°F) with a minimum of 5°C (41°F) and a maximum reaching 32°C (89°F). Notably, January experiences minimal rainfall, with only 3 mm (0.1 in) and no rainy days. Humidity remains relatively high in both months, hovering around 82% in September and 84% in January. For more details, you can visit Chapultepec (Santo Domingo) weather in January.

Comparing the weather in September and February reveals distinct seasonal differences. September boasts a broader temperature range, with minimums around 13°C (55°F) and maximums peaking at 31°C (88°F), accompanied by high humidity at 82% and significant rainfall of 267 mm (10.5 in) over 22 days. In contrast, February features a milder climate, with minimum temperatures of 7°C (44°F) and maximums reaching up to 32°C (91°F). This month experiences virtually no precipitation, with only 2 mm (0.1 in) recorded and a lower humidity level of 78%. For a more detailed look at February's weather, you can visit Chapultepec (Santo Domingo) weather in February.

In comparing the weather of September and March, notable differences emerge. September boasts a lower average temperature of 21°C (70°F) with maximums reaching up to 31°C (88°F), accompanied by significant precipitation of 267 mm (10.5 in) over 22 days and high humidity levels at 82%. In contrast, March presents a warmer average temperature of 22°C (71°F) and can reach up to a sweltering 35°C (95°F), but experiences a stark reduction in rainfall, with only 9 mm (0.4 in) spread over just 2 days, and slightly lower humidity at 75%. For those interested in more specific details, you can check out the Chapultepec (Santo Domingo) weather in March.

September and April present distinct weather contrasts. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F) with an average of 21°C (70°F). This month also sees significant rainfall, with 267 mm (10.5 in) of precipitation over 22 days, resulting in high humidity at 82%. In contrast, April is warmer, featuring a minimum temperature of 9°C (49°F) and a maximum of 35°C (95°F), with an average of 23°C (74°F). Rainfall in April is minimal, only 24 mm (0.9 in) across just 5 days, and humidity is comparatively lower at 70%. For a deeper look into April's weather dynamics, check out Chapultepec (Santo Domingo) weather in April.

When comparing the weather in September and May, September tends to be cooler with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), while May enjoys warmer conditions with averages between 13°C (56°F) and 35°C (96°F). Additionally, September is much wetter, receiving 267 mm (10.5 in) of precipitation over 22 days, in contrast to May, which has only 88 mm (3.5 in) of rain across 13 days. Furthermore, while September's humidity is slightly higher at 82%, May maintains a comfortable level at 77%. For more details on May weather, check out Chapultepec (Santo Domingo) weather in May.

When comparing the weather in September and June, you'll notice some interesting differences. September tends to be slightly cooler, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), while June features a slightly warmer average of 22°C (72°F) and highs reaching up to 34°C (93°F). Precipitation levels are higher in September, with 267 mm (10.5 in) over 22 days compared to June's 208 mm (8.2 in) over 21 days, contributing to the increased humidity of 82% in September versus 76% in June. For more details, check out Chapultepec (Santo Domingo) weather in June.

When comparing the weather in September and July, September tends to be slightly cooler, featuring a minimum temperature of 13°C (55°F) and an average of 21°C (70°F), while July sees a minimum of 11°C (52°F) and an average of 22°C (71°F). July often reaches higher maximum temperatures, peaking at 34°C (93°F), compared to September's maximum of 31°C (88°F). Additionally, September is significantly wetter, with 267 mm (10.5 in) of precipitation over 22 days, while July experiences less rainfall, totaling 139 mm (5.5 in) over just 14 days. The humidity is also higher in September at 82%, compared to 68% in July. For more detailed insights, you can check Chapultepec (Santo Domingo) weather in July.

In September, temperatures experience a slight drop compared to August, with average highs of 31°C (88°F) versus August's 33°C (92°F). Both months share the same minimum temperature of 13°C (55°F), but September's average temperature is a touch cooler at 21°C (70°F) compared to August's 22°C (71°F). Rainfall increases significantly in September, with 267 mm (10.5 in) of precipitation over 22 days, compared to August's 191 mm (7.5 in) over 19 days. Additionally, September sees higher humidity levels at 82%, while August remains lower at 70%. For a deeper dive into the weather specifics for August, you can check out Chapultepec (Santo Domingo) weather in August.

In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average of 21°C (70°F). This month experiences significant rainfall, accumulating 267 mm (10.5 in) over 22 days, and maintains a humidity level of 82%. In contrast, October sees slightly cooler mornings with a minimum of 9°C (49°F), while average and maximum temperatures remain stable at 21°C (70°F) and 31°C (89°F), respectively. Precipitation decreases sharply to 91 mm (3.6 in) over just 12 days, with humidity rising to 91%. For more detailed information, you can check Chapultepec (Santo Domingo) weather in October.

In September, temperatures are typically warmer, with a minimum of 13°C (55°F) and an average of 21°C (70°F), reaching a maximum of 31°C (88°F). This month also experiences significant rainfall, totaling 267 mm (10.5 in) over 22 days, contributing to a humidity level of 82%. In contrast, November brings cooler conditions, with temperatures ranging from a minimum of 8°C (47°F) to an average of 19°C (67°F) and a peak of 31°C (89°F). The precipitation drops dramatically to just 16 mm (0.6 in) over only 3 days, resulting in a higher humidity of 89%. For more details about November conditions, you can check Chapultepec (Santo Domingo) weather in November.

September and December showcase significantly different weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 31°C (88°F), with an average temperature of 21°C (70°F). This month experiences high humidity at 82% and considerable rainfall, with precipitation reaching 267 mm (10.5 in) over 22 days. In contrast, December boasts a cooler temperature profile, with lows dropping to 3°C (38°F), an average of 18°C (65°F), and highs still reaching 31°C (88°F). Notably, December sees minimal rainfall, with only 1 mm (0.1 in) and no rainy days, while humidity rises slightly to 88%. For more details on December weather, you may refer to Chapultepec (Santo Domingo) weather in December.

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Conclusion: What to Expect From September Weather in Chapultepec (Santo Domingo)

September in Chapultepec (Santo Domingo) stands out with its higher humidity and increased rainfall, making it quite different from the drier months of the year. With daily temperatures averaging around 21°C, this month offers a warmer yet refreshing climate, but be prepared for the 22 days of precipitation that can transform the landscape. While the sun can still shine brightly, the mix of warmth and moisture contributes to a lush environment that's distinctly vibrant. For more detailed insights, explore the local conditions further at Chapultepec (Santo Domingo) Climate.