October Weather in La Mesa, United States

Last updated: June 24, 2025

In October, the average temperature in La Mesa, United States hovers around 19°C (67°F). However, be prepared for a range, as it can drop to a chilly -2°C (29°F) or soar up to a sweltering 34°C (93°F). Expect around 22 mm (0.9 in) of precipitation over 4 days, and with an average humidity of 75%, it's wise to stay hydrated and ready for the weather's ups and downs!

October Temperature in La Mesa

In October in La Mesa, the average temperature is 19°C (67°F), with maximums reaching 34°C (93°F) and minimums dropping as low as -2°C (29°F). This varied climate makes it essential for travelers to pack accordingly, ensuring they are prepared for both warm and cool conditions.

October Weather in La Mesa: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in La Mesa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Mesa, October typically has an average temperature of 19°C (67°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (29°F).

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

October Precipitation in La Mesa

In La Mesa in October, the precipitation amount is 22 mm (0.9 in) over a duration of 4 days.

October Precipitation Trends in La Mesa

The chart displays monthly precipitation patterns in La Mesa, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In La Mesa, October typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

October Humidity in La Mesa

In La Mesa in October humidity is 75%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sticky, as you navigate through the vibrant streets or scenic landscapes.

October Average Humidity in La Mesa

This chart illustrates the average monthly humidity levels in La Mesa, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in La Mesa is approximately 75%, offering insight into how humid the weather typically is during this month.

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

October UV Index in La Mesa

In La Mesa in October, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in La Mesa.

Maximum UV Index Levels in La Mesa for October

The chart shows the monthly maximum UV Index (UVI) for La Mesa in October, 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 October, the maximum UV index in La Mesa typically reaches 9, which falls under the very high exposure category.

Data source: La Mesa October 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 October Weather in La Mesa Compares to Other Months

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

This table compares monthly weather conditions in La Mesa, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	12 mm (0.5 inches)	81%	moderate
February Weather	10°C (51°F)	13 mm (0.5 inches)	77%	high
March Weather	15°C (59°F)	17 mm (0.7 inches)	65%	very high
April Weather	20°C (68°F)	4 mm (0.1 inches)	53%	extreme
May Weather	24°C (76°F)	4 mm (0.1 inches)	51%	extreme
June Weather	29°C (84°F)	26 mm (1.0 inches)	51%	extreme
July Weather	29°C (84°F)	34 mm (1.4 inches)	60%	extreme
August Weather	28°C (83°F)	34 mm (1.4 inches)	63%	extreme
September Weather	25°C (77°F)	30 mm (1.2 inches)	74%	extreme
October Weather	19°C (67°F)	22 mm (0.9 inches)	75%	very high
November Weather	13°C (56°F)	14 mm (0.6 inches)	82%	high
December Weather	8°C (47°F)	15 mm (0.6 inches)	87%	moderate