San Antonio Weather in May: Temperature, Precipitation, Wind
San Antonio, Texas experiences warm and humid conditions in May, marking the transition from spring to summer. The average temperature hovers around 24.3°C (75.8°F), with daytime highs reaching 29.1°C (84.4°F) and nighttime lows dipping to 20.0°C (68.1°F). Heat indices exceed the actual temperature, with the average “feels like” temperature peaking at 30.8°C (87.5°F) during the warmest parts of the day.
Humidity levels in San Antonio during May are relatively high, averaging 76.5%. Precipitation is moderate, with an average of 3.43 inches (87 mm) of rainfall throughout the month. Rain occurs on approximately 12 days, covering about 9% of the month. The most common precipitation type is rain, and severe weather risks are elevated, with an average severe risk index of 48.4.
Wind patterns in San Antonio during May feature average wind speeds of 21.5 km/h (13.4 mph), with gusts reaching up to 37.9 km/h (23.6 mph). Atmospheric pressure averages 1012.4 hPa, indicative of stable conditions. Cloud cover is moderate, with an average of 57.9% of the sky obscured. The most common sky condition is partly cloudy.
UV radiation is intense in May, with an average UV index of 7.6. Visitors and residents should take precautions when spending time outdoors, especially at popular attractions like the River Walk or the Alamo. Visibility is good, averaging 14.7 km (9.1 miles), allowing for clear views of the city’s skyline and surrounding Hill Country.
Daylight hours increase throughout May, with sunrise occurring around 6:42 AM and sunset at approximately 8:20 PM by the end of the month. The lengthening days provide ample opportunity for outdoor activities in San Antonio’s numerous parks and green spaces.
What is the temperature in San Antonio in May?
Average air temperature in San Antonio is 24.3°C (75.8°F) in May. The outside temperature in San Antonio feels like 24.9°C (76.8°F) on a typical May day. The highest average temperature during sunny days is 29.1°C (84.4°F) and feels like 30.8°C (87.5°F). The lowest average temperature after dark is 20°C (68.1°F) which feels like 20°C (68.1°F).
How hot is San Antonio in May?
The hot temperature in May in San Antonio rises to 34.5°C (94.1°F) on sunny days with low cloud coverage and 76.5% humidity. During hottest days of May it feels like 38.2 °C (100.8°F). The average maximum temp in San Antonio is 29.1°C (100.8°F) during day time in May.
How cold is San Antonio in May?
The coldest temp in San Antonio in May drops to 13.9°C (57°F) during the cold nights. With 21.5km/h (13.4mph) winds and 76.5% humidity it feels like 13.9°C (57°F) on the coldest nights. The average minimum temperature is 20°C (68.1°F) during night time in May.
Does it rain in San Antonio in May?
Yes, it rains for 12 days in San Antonio, United States in May averaging 3.43 mm of precipitation. San Antonio has a 38.7% chance for rain throughout the entire month of May.
How much does it rain in San Antonio throughout May?
San Antonio has 3.43 mm (0.14 inch) of rain per day on average in May. It rains for an average of 12 days out of the entire month.
Is San Antonio windy in May?
The average speed of wind in San Antonio, United States during May is 21.5km/h (13.4mph) and average windgust is 37.9km/h (23.5mph). On some days in May wind can reach up to 37.6km/h (23.4mph).
What is the direction of the wind in San Antonio in May?
Most days of May the wind is blowing from East direction in San Antonio.
What are the humidity levels in San Antonio in May?
The average humidity levels in San Antonio in May are 76.5%. Daily humidity levels in San Antonio range from 56.2% to 89.6% during May.
How many hours of daylight are in San Antonio in May?
San Antonio has 13 hours 37 minutes of daylight in May on average. Sunset and sunrise times gradually change throughout the month. Sunrise in San Antonio in May is at 6:42:02 and the sunset is at 20:19:49.
What is the cloud coverage in San Antonio in May?
Clouds cover 57.9% of the sky on average throughout May in San Antonio. The cloud coverage ranges from 13.8% to 94.6% depending on the day of the month.
What is the UV level in May in San Antonio?
The average UV index in San Antonio is 7.6 in May. UV levels change throughout the month and range from 3 to 10.
What is the solar radiation in San Antonio in May?
The average solar radiation is 203.1 W/m2 (Watts per square meter) in San Antonio during May. However solar radiation levels change throughout the month and range from 51 W/m2 to 298.2 W/m2.
What is the solar energy during May in San Antonio?
The average solar energy during May in San Antonio is 17.5 MJ/m2 (megajoules per square metre). Solar energy ranges from 4.3 MJ/m2, to 25.8 MJ/m2 during May.
Are there severe weather risks in San Antonio in May?
Yes, there is a 48.4% risk for severe weather in San Antonio, United States in May.
What is the air pressure in San Antonio in May?
On average the air pressure in San Antonio in May is 1012.4 mb (millibars). Throughout the month the sea level pressure ranges from 1007.2 mb to 1019.7 mb.
What is the visibility in San Antonio in May?
The average daylight visibility in San Antonio in May is 14.7 km (9.1 miles). Depending on the precipitation the visibility ranges from 11.5 km (7.1 miles) to 16 km (9.9 miles) throughout May.
What is the dew point in San Antonio in May?
The average dew point in San Antonio during May is 19.5°C (67.2°F).
Where is the data for San Antonio climate in May coming from?
The climate data for San Antonio, Texas, United States in May is collected from the following weather stations.
- SAN ANTONIO STINSON MUNICIPAL AIRPORT, TX US
- SAN ANTONIO INTERNATIONAL AIRPORT, TX US
- SAN ANTONIO KELLY FIELD AFB, TX US
- KF5FGL Universal City TX US
- EW6170 San Antonio TX US
- FW6098 San Antonio TX US
- KSAT
- KSKF
- KSSF