San Antonio weather by month

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San Antonio, Texas, boasts a vibrant culture, rich history, and delicious cuisine. But before you pack your bags for the Alamo City, understanding the weather is key to a comfortable and enjoyable experience. This guide breaks down San Antonio’s weather month by month, helping you plan the perfect trip, no matter the season.

Understanding San Antonio’s Climate

San Antonio enjoys a humid subtropical climate, characterized by hot summers, mild winters, and generally pleasant conditions throughout the year. It’s a city of contrasts – scorching heat can give way to surprisingly cool spells, and even occasional snowfall isn’t unheard of. Rainfall is fairly consistent, though spring and fall tend to be the wettest months.

San Antonio Weather by Month

Here’s a detailed look at what you can expect weather-wise throughout the year:

Month Avg High (°F) Avg Low (°F) Rainfall (in) Humidity (%)
January 64 43 2.3 70
February 68 47 2.5 68
March 74 53 2.8 65
April 80 60 3.2 62
May 86 67 4.1 60
June 92 73 3.5 65
July 96 76 2.7 70
August 95 75 2.9 72
September 89 70 3.6 75
October 82 62 3.5 70
November 73 52 2.8 68
December 65 44 2.4 72

Detailed Monthly Breakdown

January: Cool and Crisp

January is typically the coldest month in San Antonio, but “cold” is relative! Expect average highs in the mid-60s and lows in the low 40s. It’s a good time for exploring indoor attractions and enjoying the city’s cultural offerings. Layers are recommended.

February: Mild and Pleasant

February sees a slight warming trend, with highs climbing into the upper 60s. The weather is generally mild and pleasant, making it a good time for outdoor activities, though occasional cool snaps can occur.

March: Spring Begins to Bloom

March marks the beginning of spring, with temperatures steadily rising. Expect highs in the mid-70s and increasing humidity. Wildflowers start to bloom, adding color to the landscape.

April: Perfect Weather Arrives

April is arguably one of the best months to visit San Antonio. The weather is consistently warm and sunny, with highs around 80°F and comfortable humidity levels. It’s ideal for exploring the River Walk, missions, and outdoor parks.

May: Warm and Sunny

May brings warmer temperatures, with highs reaching the mid-80s. Humidity begins to increase, but it’s still manageable. Enjoy outdoor festivals and events before the summer heat intensifies.

June, July & August: Hot Summer Months

These are the hottest months in San Antonio. Temperatures frequently soar into the 90s, with high humidity making it feel even warmer. Stay hydrated, seek shade, and plan indoor activities during the hottest part of the day. Water parks are popular during this time.

September: Heat Lingers

September still sees high temperatures, but they begin to gradually decrease. Humidity remains high, and there’s a slightly increased chance of rain.

October: Fall’s Embrace

October offers a welcome respite from the summer heat. Temperatures are mild and pleasant, with highs in the low 80s. Fall festivals and events begin to take place.

November: Comfortable and Cool

November is a comfortable month with highs in the low 70s and cooler evenings. It’s a great time for outdoor activities and exploring the city without the summer crowds.

December: Festive and Mild

December is generally mild, with highs in the mid-60s. The city is beautifully decorated for the holidays, and there are numerous festive events to enjoy.

Frequently Asked Questions (FAQ)

Q: What is the hottest month in San Antonio?
A: July and August are typically the hottest months, with average highs around 96°F.

Q: Does it ever snow in San Antonio?
A: Yes, but it’s rare. Snowfall typically occurs only a few times a decade, and accumulations are usually light.

Q: What should I pack for a trip to San Antonio in the spring?
A: Pack layers! Spring weather can be variable, so bring light jackets, t-shirts, shorts, and comfortable walking shoes.

Q: Is San Antonio humid?
A: Yes, San Antonio has a humid subtropical climate, meaning humidity levels can be high, especially during the summer months.

Q: What is the best time of year to visit San Antonio to avoid the heat?
A: April, October, and November offer the most pleasant weather with comfortable temperatures and lower humidity.

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