October weather forecast
San Antonio, TX

Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront
Buildings in San Antonio, Texas, with a calm view of the bridges across the waterfront

Weather in October

October, the same as September, is another warm autumn month in San Antonio, Texas, with an average temperature varying between 80.6°F (27°C) and 62.4°F (16.9°C).

Temperature

In October, the average high-temperature marginally drops from a hot 89.1°F (31.7°C) in September to a moderately hot 80.6°F (27°C). In October, in San Antonio, the average low-temperature is 62.4°F (16.9°C).

Heat index

The average heat index in October is computed to be 84.2°F (29°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, pregnancy, clothing), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In San Antonio, the average relative humidity in October is 66%.

Rainfall

In San Antonio, during October, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in San Antonio, there are 144.5 rainfall days, and 22.6" (574mm) of precipitation is accumulated.

Snowfall

In San Antonio, snow does not fall in March through November.

Daylight

In San Antonio, the average length of the day in October is 11h and 27min.
On the first day of October, sunrise is at 7:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 6:48 pm CDT.

Sunshine

In San Antonio, the average sunshine in October is 7.3h.

UV index

In October, the average daily maximum UV index in San Antonio is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in October transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in October in San Antonio?

In October, in San Antonio, the average high-temperature is 80.6°F (27°C), and the average low-temperature is 62.4°F (16.9°C). in October, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is computed to be 84.2°F (29°C).

What is the average humidity in October in San Antonio?

In San Antonio, the average relative humidity in October is 66%.

How much does it rain in San Antonio in October?

In San Antonio, during October, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in San Antonio?

March through November are months without snowfall in San Antonio, Texas.

How many hours of daylight does San Antonio have in October?

In San Antonio, the average day length in October is 11h and 27min.

When is the sunrise / sunset in October in San Antonio?

On the first day of October in San Antonio, sunrise is at 7:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 6:48 pm CDT.

How long on average sun shines in October in San Antonio?

In San Antonio, Texas, the average sunshine duration in October is 7.3h.

What is the UV index intensity in October in San Antonio?

In October, the average daily maximum UV index in San Antonio, Texas, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
San Antonio, TX

Average temperature in October - San Antonio, TX
  • Average high temperature in October: 80.6°F

The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.7°F).

  • Average low temperature in October: 62.4°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

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Average pressure in October
San Antonio, TX

Average pressure in October - San Antonio, TX
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in October
San Antonio, TX

Average wind speed in October - San Antonio, TX
  • Average wind speed in October: 7.5mph

The windiest month (with the highest average wind speed) is May (9mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).

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Average humidity in October
San Antonio, TX

Average humidity in October - San Antonio, TX
  • Average humidity in October: 66%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in October
San Antonio, TX

Average rainfall in October - San Antonio, TX
  • Average rainfall in October: 2.68"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in October
San Antonio, TX

Average rainfall days in October - San Antonio, TX
  • Average rainfall days in October: 9.8 days

The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in October
San Antonio, TX

Average snowfall in October - San Antonio, TX
  • Average snowfall in October: 0"

The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in October
San Antonio, TX

Average snowfall days in October - San Antonio, TX
  • Average snowfall days in October: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in October /
Average sunshine in October
San Antonio, TX

Average daylight in October / Average sunshine in October - San Antonio, TX
  • Average daylight in October: 11h and 27min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in October: 7h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in October
San Antonio, TX

Average sunshine days in October - San Antonio, TX
  • Average sunshine days in October: 17.8 days

The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and September (11.8 days).

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Average UV index in October
San Antonio, TX

Average UV index in October - San Antonio, TX
  • Average UV index in October: 5

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in October
San Antonio, TX

Average cloud cover in October - San Antonio, TX
  • Average cloud cover in October: 33

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in October
San Antonio, TX

Average visibility in October - San Antonio, TX
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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