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Best time to visit San Antonio, TX, USA

Our verdict

The best time to visit San Antonio is November

If you’re looking to travel to San Antonio for your next trip but aren’t sure when to go and when to avoid, this article is all you’ll need. The best time to visit San Antonio is November due to the excellent all-round weather conditions, and it’s also not during the height of peak travel periods, so it’s not likely to be as busy.

In summer, the average maximum temperature is around 36℃ (97℉), but temperatures can sometimes reach as high as 37℃ (99℉) on the hottest days of the year. The weather in the winter, especially around January, can reach a minimum of 4℃ (40℉).

If you’re a sun-chaser and want to visit San Antonio when the days are longest, you should visit in July. On average it rains the most days in May, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.

Keep reading to find out more detailed information about the seasons and climate in San Antonio, as well as our favourite tools to help you find the best options for transport, accommodation, and much more.

Warmest month

August

Least rainfall

February

Most daylight

July

San Antonio seasons

Before you continue, it’s important to know when the seasons are in San Antonio as they might be different to yours depending on where in the world you’re travelling from. San Antonio is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in San Antonio

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in San Antonio for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

San Antonio climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in San Antonio for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

San Antonio in January

  • Average temperature: 11℃ (52℉)
  • Average high temperature: 16℃ (62℉)
  • Average low temperature: 7℃ (45℉)
  • Average humidity: 64%
  • Average sunny days: 20 days
  • Average rainfall: 29mm (1") over 9 days
20 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to San Antonio in January, make sure you pack a warm jacket or coat.


San Antonio in February

  • Average temperature: 13℃ (56℉)
  • Average high temperature: 19℃ (66℉)
  • Average low temperature: 9℃ (48℉)
  • Average humidity: 68%
  • Average sunny days: 15 days
  • Average rainfall: 25mm (1") over 11 days
15 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to San Antonio in February, make sure you pack a warm jacket or coat.


San Antonio in March

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 23℃ (73℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 71%
  • Average sunny days: 14 days
  • Average rainfall: 39mm (2") over 14 days
14 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to San Antonio in March, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


San Antonio in April

  • Average temperature: 21℃ (69℉)
  • Average high temperature: 27℃ (80℉)
  • Average low temperature: 16℃ (60℉)
  • Average humidity: 70%
  • Average sunny days: 13 days
  • Average rainfall: 47mm (2") over 15 days
13 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to San Antonio in April, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


San Antonio in May

  • Average temperature: 24℃ (76℉)
  • Average high temperature: 30℃ (86℉)
  • Average low temperature: 20℃ (67℉)
  • Average humidity: 73%
  • Average sunny days: 12 days
  • Average rainfall: 93mm (4") over 16 days
12 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to San Antonio in May, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


San Antonio in June

  • Average temperature: 28℃ (82℉)
  • Average high temperature: 34℃ (92℉)
  • Average low temperature: 23℃ (73℉)
  • Average humidity: 70%
  • Average sunny days: 15 days
  • Average rainfall: 41mm (2") over 12 days
15 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to San Antonio in June, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.


San Antonio in July

  • Average temperature: 29℃ (84℉)
  • Average high temperature: 35℃ (95℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 64%
  • Average sunny days: 19 days
  • Average rainfall: 40mm (2") over 10 days
19 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to San Antonio in July, make sure you pack t-shirts, shorts and sun protection.


San Antonio in August

  • Average temperature: 30℃ (86℉)
  • Average high temperature: 36℃ (97℉)
  • Average low temperature: 24℃ (76℉)
  • Average humidity: 59%
  • Average sunny days: 20 days
  • Average rainfall: 36mm (1") over 9 days
20 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to San Antonio in August, make sure you pack t-shirts, shorts and sun protection.


San Antonio in September

  • Average temperature: 27℃ (80℉)
  • Average high temperature: 32℃ (89℉)
  • Average low temperature: 22℃ (72℉)
  • Average humidity: 66%
  • Average sunny days: 12 days
  • Average rainfall: 86mm (3") over 17 days
12 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to San Antonio in September, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.

San Antonio in October

  • Average temperature: 22℃ (71℉)
  • Average high temperature: 27℃ (81℉)
  • Average low temperature: 17℃ (63℉)
  • Average humidity: 66%
  • Average sunny days: 18 days
  • Average rainfall: 68mm (3") over 10 days
18 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to San Antonio in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


San Antonio in November

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 21℃ (70℉)
  • Average low temperature: 12℃ (53℉)
  • Average humidity: 69%
  • Average sunny days: 18 days
  • Average rainfall: 27mm (1") over 9 days
18 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to San Antonio in November, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.


San Antonio in December

  • Average temperature: 12℃ (54℉)
  • Average high temperature: 17℃ (62℉)
  • Average low temperature: 8℃ (47℉)
  • Average humidity: 69%
  • Average sunny days: 19 days
  • Average rainfall: 28mm (1") over 10 days
19 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to San Antonio in December, make sure you pack a warm jacket or coat.


Top FAQs

The hottest month of the year in San Antonio is usually August, where temperatures tend to rise to around 36℃ (97℉) in the middle of the day or early afternoon.
The month with the least amount of rain in San Antonio is generally around February. The dry season often coincides with cooler weather, so you should check the temperatures in February first to make sure it’s still a good time to go.
The rainiest time of year in San Antonio is generally around May, although the wetter season can sometimes extend a few months either side of May too.
If you want to get the most out of your time visiting San Antonio, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

San Antonio map