The climate of San Antonio is subtropical, with mild winters and very hot, muggy summers. Show San Antonio - Average temperatures (1991-2020)
Precipitation amounts to 820 millimeters (32.3 inches) per year: so, it is at an intermediate level. The rainiest seasons are spring and autumn, due to the clash of air masses. San Antonio is just outside the "tornado alley", however tornadoes can occasionally occur in the period April-June (and more rarely in autumn). Here is the average precipitation. San Antonio - Average precipitation
On average, there are around 2,630 sunshine hours per year. Here are the average sunshine hours per day. San Antonio - Sunshine hours
Best TimeTo visit San Antonio, you can choose spring and autumn (in particular, from mid-March to mid-April and from mid-October to mid-November), to avoid the summer heat. In winter, there are long mild periods, but some very cold days cannot be excluded. Return to the climate of Texas. San Antonio - Weather by monthBased on the period 1991-2020
On the warmest days of the month, the temperature usually reaches around 27 °C (80 °F). However, it reached 30 °C (86 °F) in January 2006. Precipitation amounts to 50 mm (2 in), distributed over 7 days. The day lasts on average 10 hours and 30 minutes. There are on average 5 hours of sunshine per day. So, the sun shines 49% of the time. The average humidity is 63%. The average wind speed is 12 kph (8 mph).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85 °F). However, it reached 37.8 °C (100 °F) in February 1996. Precipitation amounts to 45 mm (1.8 in), distributed over 7 days. The day lasts on average 11 hours and 10 minutes. There are on average 6 hours of sunshine per day. So, the sun shines 54% of the time. The average humidity is 63%. The average wind speed is 13 kph (8 mph).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (89 °F). However, it reached 37.2 °C (99 °F) in March 1991. Precipitation amounts to 60 mm (2.4 in), distributed over 8 days. The day lasts on average 12 hours and 0 minutes. There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time. The average humidity is 64%. The average wind speed is 14 kph (9 mph).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33.5 °C (92 °F). However, it reached 38.3 °C (100.9 °F) in April 1996. Precipitation amounts to 60 mm (2.4 in), distributed over 6 days. The day lasts on average 12 hours and 55 minutes. There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time. The average humidity is 64%. The average wind speed is 15 kph (9 mph).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35.5 °C (96 °F). However, it reached 40 °C (104 °F) in May 2004. Precipitation amounts to 110 mm (4.3 in), distributed over 8 days. The day lasts on average 13 hours and 40 minutes. There are on average 7 hours of sunshine per day. So, the sun shines 52% of the time. The average humidity is 68%. The average wind speed is 16 kph (10 mph).
On the warmest days, the temperature usually reaches around 37.5 °C (99 °F). However, it reached 42.2 °C (108 °F) in June 2013. Precipitation amounts to 85 mm (3.3 in), distributed over 7 days. The day lasts on average 14 hours and 0 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere. There are on average 9 hours of sunshine per day. So, the sun shines 66% of the time. The average humidity is 66%. The average wind speed is 15 kph (9 mph).
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F). However, it reached 41.7 °C (107.1 °F) in July 2020. Precipitation amounts to 60 mm (2.4 in), distributed over 5 days. The day lasts on average 13 hours and 50 minutes. There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time. The average humidity is 63%. The average wind speed is 14 kph (9 mph).
On the warmest days of the month, the temperature usually reaches around 39 °C (102 °F). However, it reached 43.3 °C (109.9 °F) in August 2011. Precipitation amounts to 55 mm (2.2 in), distributed over 5 days. The day lasts on average 13 hours and 5 minutes. There are on average 9.5 hours of sunshine per day. So, the sun shines 72% of the time. The average humidity is 60%. The average wind speed is 13 kph (8 mph).
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 43.9 °C (111 °F) in September 2000. Precipitation amounts to 100 mm (3.9 in), distributed over 7 days. The day lasts on average 12 hours and 20 minutes. There are on average 8 hours of sunshine per day. So, the sun shines 63% of the time. The average humidity is 64%. The average wind speed is 12 kph (7 mph).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34 °C (93 °F). However, it reached 37.2 °C (99 °F) in October 1991. Precipitation amounts to 95 mm (3.7 in), distributed over 6 days. The day lasts on average 11 hours and 25 minutes. There are on average 7 hours of sunshine per day. So, the sun shines 62% of the time. The average humidity is 65%. The average wind speed is 12 kph (8 mph).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, it reached 32.8 °C (91 °F) in November 2017. Precipitation amounts to 55 mm (2.2 in), distributed over 6 days. The day lasts on average 10 hours and 40 minutes. There are on average 5.5 hours of sunshine per day. So, the sun shines 54% of the time. The average humidity is 66%. The average wind speed is 12 kph (7 mph).
On the warmest days of the month, the temperature usually reaches around 27 °C (80.5 °F). However, it reached 30 °C (86 °F) in December 2007. Precipitation amounts to 50 mm (2 in), distributed over 7 days. The day lasts on average 10 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere. There are on average 5 hours of sunshine per day. So, the sun shines 47% of the time. The average humidity is 64%. The average wind speed is 12 kph (7 mph). © Copyright Climatestotravel.com. Is December a good time to visit San Antonio Texas?Winter and spring are the best times to visit San Antonio for comfortable weather and mild temperatures, specifically from November to April. Even in the coldest months of December and January, the average daytime temperatures are above 60 degrees Fahrenheit.
What is the coldest month in San Antonio?San Antonio's coldest month is January when the average temperature overnight is 38.6°F. In August, the warmest month, the average day time temperature rises to 94.7°F.
Will it snow in December in San Antonio?Snowfall in December
San Antonio sees 0.1 snowfall days throughout the month and accumulates up to 0.04 inches (1 millimeter) of snow. December is also a slightly precipitous month with an accumulation of 1.1 inches (28 millimeters) after seeing rainfall for 9.9 days throughout the month.
What is the weather like in San Antonio during Christmas?Winter in San Antonio is generally short and very mild, with average temperatures in January reaching 63° for a high and 41° for a low. January is typically the coldest month of the year. December temperatures are similar, with an average high of 64° and a low of 42°.
|