The average temperature in San Antonio in October for a typical day ranges from a high of 85°F (29°C) to a low of 61°F (16°C). Some would describe it as very warm with a gentle breeze.
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The best time for statewide travel is late Oct/Nov, March and April, and late May/early June. This will avoid, for the most part, Texas's hottest and coldest temperatures and the heaviest rainfall.
Do pack a few pairs of shorts and at least one pair of pants in case it gets chilly in the evenings. Bring a light jacket and sweater to wear at night, and don't forget to pack comfy walking shoes. It's also a good idea to pack a rain jacket or umbrella and water-resistant shoes, as October gets its fair share of rain.
How humid is it in October. In October, Austin is moderately humid with an average amount of 64% (relative humidity), which could be described as humid but cool. February has the highest relative humidity at 74% and is the least humid in August at 56%.
The busiest time for tropical storms and hurricanes in the Atlantic Basin runs from mid-August through October, with September 10 being the peak of hurricane season. Hurricane season runs until November 30.
The official hurricane season for the Atlantic basin is from June 1 to November 30, but tropical cyclone activity sometimes occurs before and after these dates, respectively. The peak of the Atlantic hurricane season is September 10, with most activity occurring between mid-August and mid-October.