September Weather in Monte Sinai, Mexico

Last updated: August 26, 2025

In Monte Sinai, Mexico, the average temperature in September is a pleasant 24°C (75°F). You can expect a minimum of 18°C (64°F) and a maximum soaring to 33°C (92°F). Prepare for relatively high humidity, averaging 82%, as well as some rainfall, with 216 mm (8.5 in) of precipitation spread over 23 days.

September Temperature in Monte Sinai

In September in Monte Sinai, the average temperature is 24°C (75°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 18°C (64°F). This makes Monte Sinai an ideal destination for travelers seeking pleasant and comfortable weather.

September Weather in Monte Sinai: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Monte Sinai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monte Sinai, September typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (92°F) and lows dropping to around 18°C (64°F).

Data source: Temperature data for Monte Sinai generated using information from the Copernicus Climate Change Service.

September Precipitation in Monte Sinai

In Monte Sinai in September, the precipitation amount is 216 mm (8.5 in) over a period of 23 days.

September Precipitation Trends in Monte Sinai

The chart displays monthly precipitation patterns in Monte Sinai, 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 Monte Sinai, September typically receives around 216 mm (8.5 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Monte Sinai

In Monte Sinai in September, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

September Average Humidity in Monte Sinai

This chart illustrates the average monthly humidity levels in Monte Sinai, 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 Monte Sinai is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Monte Sinai

In Monte Sinai 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 Monte Sinai, you can check here.

Maximum UV Index Levels in Monte Sinai for September

The chart shows the monthly maximum UV Index (UVI) for Monte Sinai 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 Monte Sinai typically reaches 14, which falls under the extreme exposure category.

Data source: Monte Sinai 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 Monte Sinai Compares to Other Months

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

This table compares monthly weather conditions in Monte Sinai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	13 mm (0.5 inches)	76%	extreme
February Weather	22°C (72°F)	8 mm (0.3 inches)	68%	extreme
March Weather	24°C (75°F)	6 mm (0.2 inches)	59%	extreme
April Weather	26°C (78°F)	21 mm (0.8 inches)	57%	extreme
May Weather	26°C (79°F)	118 mm (4.6 inches)	65%	extreme
June Weather	24°C (75°F)	305 mm (12.0 inches)	66%	extreme
July Weather	24°C (76°F)	81 mm (3.2 inches)	75%	extreme
August Weather	24°C (76°F)	137 mm (5.4 inches)	82%	extreme
September Weather	24°C (75°F)	216 mm (8.5 inches)	82%	extreme
October Weather	23°C (74°F)	180 mm (7.1 inches)	83%	extreme
November Weather	22°C (72°F)	42 mm (1.6 inches)	80%	extreme
December Weather	21°C (71°F)	14 mm (0.5 inches)	76%	very high