September Weather in Oso Viejo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Oso Viejo, Mexico reaches a warm 28°C (83°F), with minimum temperatures dipping to 23°C (74°F) and maximums soaring to 36°C (97°F). Expect around 143 mm (5.6 in) of precipitation spread over 20 days, contributing to an average humidity of 88% that creates a vibrant, tropical atmosphere.

September Temperature in Oso Viejo

In September in Oso Viejo, the average temperature is 28°C (83°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 23°C (74°F). This warm and pleasant climate makes Oso Viejo an ideal destination for travelers looking to enjoy outdoor activities and sunshine.

September Weather in Oso Viejo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Oso Viejo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oso Viejo, September typically has an average temperature of 28°C (83°F), with highs reaching up to 36°C (97°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Oso Viejo

In Oso Viejo in September, the precipitation amount is 143 mm (5.6 in) over the course of 20 days.

September Precipitation Trends in Oso Viejo

The chart displays monthly precipitation patterns in Oso Viejo, 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 Oso Viejo, September typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 20 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Oso Viejo

In Oso Viejo in September, humidity is 88%. With an average temperature of 28°C (83°F), this humidity feels like stepping into a warm, dense mist that clings to your skin, making outdoor activities noticeably more taxing and promoting a sense of sluggishness that can hinder your travel plans.

September Average Humidity in Oso Viejo

This chart illustrates the average monthly humidity levels in Oso Viejo, 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 Oso Viejo is approximately 88%, 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 Oso Viejo

In Oso Viejo 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 Oso Viejo.

Maximum UV Index Levels in Oso Viejo for September

The chart shows the monthly maximum UV Index (UVI) for Oso Viejo 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 Oso Viejo typically reaches 12, which falls under the extreme exposure category.

Data source: Oso Viejo 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 Oso Viejo Compares to Other Months

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

This table compares monthly weather conditions in Oso Viejo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	6 mm (0.3 inches)	76%	high
February Weather	20°C (69°F)	24 mm (0.9 inches)	69%	very high
March Weather	22°C (72°F)	2 mm (0.1 inches)	57%	extreme
April Weather	24°C (75°F)	0 mm (0.0 inches)	49%	extreme
May Weather	26°C (80°F)	0 mm (0.0 inches)	49%	extreme
June Weather	29°C (84°F)	26 mm (1.0 inches)	64%	extreme
July Weather	29°C (85°F)	86 mm (3.4 inches)	82%	extreme
August Weather	29°C (85°F)	152 mm (6.0 inches)	87%	extreme
September Weather	28°C (83°F)	143 mm (5.6 inches)	88%	extreme
October Weather	28°C (83°F)	43 mm (1.7 inches)	83%	extreme
November Weather	25°C (77°F)	46 mm (1.8 inches)	84%	very high
December Weather	21°C (70°F)	17 mm (0.7 inches)	86%	high