September Weather in San Jose (San Jose de los Melendez), Mexico

Last updated: August 27, 2025

In San Jose (San Jose de los Melendez), Mexico, the average temperature in September hovers around 20°C (67°F), with a comfortable minimum of 11°C (52°F) and a warm maximum peaking at 29°C (85°F). Expect 157 mm (6.2 in) of precipitation spread over 20 days, along with a relatively high humidity level of 84%. Be prepared for a refreshing blend of warmth and moisture this month!

September Temperature in San Jose (San Jose de los Melendez)

In September in San Jose (San Jose de los Melendez), the average temperature is 20°C (67°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as 11°C (52°F). This makes it an ideal time for travelers to enjoy pleasant weather and explore outdoor activities.

September Weather in San Jose (San Jose de los Melendez): Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Jose (San Jose de los Melendez), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose (San Jose de los Melendez), September typically has an average temperature of 20°C (67°F), with highs reaching up to 29°C (85°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for San Jose (San Jose de los Melendez) generated using information from the Copernicus Climate Change Service.

September Precipitation in San Jose (San Jose de los Melendez)

In San Jose (San Jose de los Melendez) in September, the precipitation amount is 157 mm (6.2 in) spread over 20 days.

September Precipitation Trends in San Jose (San Jose de los Melendez)

The chart displays monthly precipitation patterns in San Jose (San Jose de los Melendez), 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 San Jose (San Jose de los Melendez), September typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 20 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 San Jose (San Jose de los Melendez)

In San Jose (San Jose de los Melendez) in September humidity is 84%. With an average temperature of 20°C (67°F), this humidity feels like walking through a warm, thick blanket that wraps around you, making travel feel heavy and sticky while also creating a sensation of warmth that can lead to exhaustion if you're not careful.

September Average Humidity in San Jose (San Jose de los Melendez)

This chart illustrates the average monthly humidity levels in San Jose (San Jose de los Melendez), 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 San Jose (San Jose de los Melendez) 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 San Jose (San Jose de los Melendez)

In San Jose (San Jose de los Melendez) 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 San Jose (San Jose de los Melendez), you can check here.

Maximum UV Index Levels in San Jose (San Jose de los Melendez) for September

The chart shows the monthly maximum UV Index (UVI) for San Jose (San Jose de los Melendez) 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 San Jose (San Jose de los Melendez) typically reaches 14, which falls under the extreme exposure category.

Data source: San Jose (San Jose de los Melendez) 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 San Jose (San Jose de los Melendez) Compares to Other Months

Weather in San Jose (San Jose de los Melendez) varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Jose (San Jose de los Melendez), focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Jose (San Jose de los Melendez), showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	10 mm (0.4 inches)	64%	very high
February Weather	16°C (62°F)	11 mm (0.4 inches)	57%	extreme
March Weather	19°C (67°F)	4 mm (0.2 inches)	46%	extreme
April Weather	21°C (70°F)	1 mm (0.0 inches)	42%	extreme
May Weather	23°C (73°F)	23 mm (0.9 inches)	51%	extreme
June Weather	22°C (73°F)	139 mm (5.5 inches)	74%	extreme
July Weather	20°C (68°F)	228 mm (9.0 inches)	79%	extreme
August Weather	20°C (69°F)	165 mm (6.5 inches)	81%	extreme
September Weather	20°C (67°F)	157 mm (6.2 inches)	84%	extreme
October Weather	19°C (66°F)	65 mm (2.6 inches)	75%	extreme
November Weather	17°C (63°F)	16 mm (0.6 inches)	71%	very high
December Weather	14°C (58°F)	9 mm (0.4 inches)	74%	very high