September Weather in Los Arquitos, Mexico

Last updated: August 27, 2025

In September, the average temperature in Los Arquitos, Mexico hovers around 18°C (65°F), with a minimum of 10°C (50°F) and a maximum reaching 28°C (82°F). Expect about 175 mm (6.9 in) of precipitation spread over 18 days, contributing to an average humidity level of 84%. Embrace the refreshing climate while preparing for occasional showers!

September Temperature in Los Arquitos

In September in Los Arquitos, the average temperature is 18°C (65°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as 10°C (50°F). This mild weather makes Los Arquitos an ideal destination for travelers seeking comfortable conditions for outdoor activities.

September Weather in Los Arquitos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Los Arquitos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Arquitos, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (82°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Los Arquitos

In Los Arquitos in September, the precipitation amount is 175 mm (6.9 in) spread over 18 days.

September Precipitation Trends in Los Arquitos

The chart displays monthly precipitation patterns in Los Arquitos, 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 Los Arquitos, September typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 18 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 Los Arquitos

In Los Arquitos in September, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

September Average Humidity in Los Arquitos

This chart illustrates the average monthly humidity levels in Los Arquitos, 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 Los Arquitos is approximately 84%, 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 Los Arquitos

In Los Arquitos 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 Los Arquitos, you can check here.

Maximum UV Index Levels in Los Arquitos for September

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

Data source: Los Arquitos 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 Los Arquitos Compares to Other Months

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

This table compares monthly weather conditions in Los Arquitos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	13 mm (0.5 inches)	64%	very high
February Weather	15°C (59°F)	12 mm (0.5 inches)	57%	extreme
March Weather	18°C (65°F)	5 mm (0.2 inches)	46%	extreme
April Weather	20°C (68°F)	4 mm (0.2 inches)	42%	extreme
May Weather	21°C (70°F)	36 mm (1.4 inches)	51%	extreme
June Weather	21°C (69°F)	172 mm (6.8 inches)	74%	extreme
July Weather	19°C (66°F)	223 mm (8.8 inches)	79%	extreme
August Weather	19°C (66°F)	149 mm (5.9 inches)	81%	extreme
September Weather	18°C (65°F)	175 mm (6.9 inches)	84%	extreme
October Weather	17°C (63°F)	65 mm (2.6 inches)	75%	extreme
November Weather	15°C (59°F)	16 mm (0.6 inches)	71%	very high
December Weather	13°C (55°F)	12 mm (0.5 inches)	74%	very high