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September Weather in Santa Martha, Mexico

Last updated: August 27, 2025

In Santa Martha, Mexico, the average temperature in September is a pleasant 28°C (82°F). Expect a range, with minimums dipping to 20°C (69°F) and maximums soaring to 40°C (104°F). Be prepared for 175 mm (6.9 in) of precipitation spread over 21 days, contributing to the 80% average humidity. Ideal for those who enjoy a warm, moist climate!

September Temperature in Santa Martha

In September in Santa Martha, the average temperature is 28°C (82°F). Maximums can reach 40°C (104°F) and minimums can be as low as 20°C (69°F). This makes it an ideal time for travelers seeking warm weather and plenty of sunshine.

September Weather in Santa Martha: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Martha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Martha, September typically has an average temperature of 28°C (82°F), with highs reaching up to 40°C (104°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec677176818584848482787369
Data source: Temperature data for Santa Martha 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 Santa Martha

In Santa Martha in September, the precipitation amount reaches 175 mm (6.9 in) over the course of 21 days.

September Precipitation Trends in Santa Martha

The chart displays monthly precipitation patterns in Santa Martha, 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 Santa Martha, September typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec38173534901841711281751392813
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Martha

In Santa Martha in September, humidity is 80%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.

September Average Humidity in Santa Martha

This chart illustrates the average monthly humidity levels in Santa Martha, 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 Santa Martha is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%84%85%79%71%72%80%85%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Martha

In Santa Martha in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Santa Martha.

Maximum UV Index Levels in Santa Martha for September

The chart shows the monthly maximum UV Index (UVI) for Santa Martha 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 Santa Martha typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121212121312121086
Data source: Santa Martha 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 Santa Martha Compares to Other Months

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

This table compares monthly weather conditions in Santa Martha, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (67°F)38 mm (1.5 inches)87%high
February Weather22°C (71°F)17 mm (0.7 inches)85%very high
March Weather24°C (76°F)35 mm (1.4 inches)83%extreme
April Weather27°C (81°F)34 mm (1.3 inches)84%extreme
May Weather29°C (85°F)90 mm (3.6 inches)85%extreme
June Weather29°C (84°F)184 mm (7.3 inches)79%extreme
July Weather29°C (84°F)171 mm (6.7 inches)71%extreme
August Weather29°C (84°F)128 mm (5.0 inches)72%extreme
September Weather28°C (82°F)175 mm (6.9 inches)80%extreme
October Weather26°C (79°F)139 mm (5.5 inches)85%very high
November Weather23°C (73°F)28 mm (1.1 inches)88%very high
December Weather21°C (69°F)13 mm (0.5 inches)89%high

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