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When is the Best Time to Explore San Antonio?

If you're curious when is the best time of year to visit San Antonio, you may find this information about seasonal weather helpful when planning your trip. The warmest months in San Antonio are typically January and December, whereas the coldest months are usually July and June. The months with the most rain are January and February, whereas August and July have the least.

Here's a rundown on how much rain you can expect and what the temperatures are going to be like:

• From January to March, the average daytime temperature is 30°C and at night it is 15°C. Seasonal average rainfall is 533 mm.
• If you visit between April and June, you can expect an average temp of 23°C during the day and 5°C at night. Average rainfall during this season is 108 mm.
• The daytime average temp from July to September is 24°C and the night-time average is 4°C. Average precipitation for this season is 52 mm.
• Between October and December, the average temp during the day is 29°C and 12°C at night. Seasonal average rain is 374 mm.
• The average annual rainfall in San Antonio is 1066 mm.