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September Weather in Santo Domingo, Mexico

Last updated: August 27, 2025

In Santo Domingo, Mexico, the average temperature in September is a pleasant 19°C (67°F), with temperatures ranging from a minimum of 13°C (56°F) to a comfortable maximum of 26°C (79°F). During this month, expect 436 mm (17.2 in) of precipitation over 30 days, resulting in an average humidity level of 82%. Enjoy the warm yet refreshing atmosphere that characterizes this time of year!

September Temperature in Santo Domingo

In September in Santo Domingo, the average temperature is 19°C (67°F). Maximum temperatures can reach 26°C (79°F), while minimums can drop to as low as 13°C (56°F). This pleasant weather makes Santo Domingo an ideal destination for outdoor activities and exploration during this time.

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

The chart illustrates September temperature patterns in Santo Domingo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Domingo, September typically has an average temperature of 19°C (67°F), with highs reaching up to 26°C (79°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec646566676867676767676664
Data source: Temperature data for 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 Santo Domingo

In Santo Domingo in September, the total precipitation amount is 436 mm (17.2 in) over a period of 30 days.

September Precipitation Trends in Santo Domingo

The chart displays monthly precipitation patterns in 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. In Santo Domingo, September typically receives around 436 mm (17.2 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec39347713139548127243443636011452
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santo Domingo

In Santo Domingo in September humidity is 82%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket wrapping around you, making each step feel sluggish and the air thick as you explore the sights.

September Average Humidity in Santo Domingo

This chart illustrates the average monthly humidity levels in Santo Domingo, 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 Santo Domingo is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%59%57%65%66%75%82%82%83%80%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santo Domingo

In Santo Domingo in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santo Domingo, you can check here.

Maximum UV Index Levels in Santo Domingo for September

The chart shows the monthly maximum UV Index (UVI) for 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. In September, the maximum UV index in Santo Domingo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151515151414131110
Data source: 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.

How September Weather in Santo Domingo Compares to Other Months

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

This table compares monthly weather conditions in Santo Domingo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)39 mm (1.5 inches)76%extreme
February Weather18°C (65°F)34 mm (1.3 inches)68%extreme
March Weather19°C (66°F)77 mm (3.0 inches)59%extreme
April Weather19°C (67°F)131 mm (5.1 inches)57%extreme
May Weather20°C (68°F)395 mm (15.6 inches)65%extreme
June Weather20°C (67°F)481 mm (18.9 inches)66%extreme
July Weather20°C (68°F)272 mm (10.7 inches)75%extreme
August Weather19°C (67°F)434 mm (17.1 inches)82%extreme
September Weather19°C (67°F)436 mm (17.2 inches)82%extreme
October Weather19°C (67°F)360 mm (14.2 inches)83%extreme
November Weather19°C (66°F)114 mm (4.5 inches)80%extreme
December Weather18°C (65°F)52 mm (2.0 inches)76%very high

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