May weather forecastSan Antonio Heights, CA
May
Weather in May
The last month of the spring, May, is a moderately hot month in San Antonio Heights, California, with an average temperature varying between 76.6°F (24.8°C) and 53.6°F (12°C).Temperature
The advent of May brings an average high-temperature of a warm 76.6°F (24.8°C), almost identical to the preceding month. San Antonio Heights witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 53.6°F (12°C) throughout May.Humidity
March and May, with an average relative humidity of 54%, are the most humid months.Rainfall
In San Antonio Heights, in May, it is raining for 3.8 days, with typically 0.24" (6mm) of accumulated precipitation. In San Antonio Heights, during the entire year, the rain falls for 49.6 days and collects up to 7.8" (198mm) of precipitation.Snowfall
In San Antonio Heights, snow does not fall in January, March through December.Daylight
The average length of the day in May is 13h and 58min.On the first day of May in San Antonio Heights, sunrise is at 6:00 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 7:56 pm PDT.
Sunshine
In San Antonio Heights, the average sunshine in May is 11.8h.UV index
The average daily maximum UV index in May in San Antonio Heights is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 6 suggests this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
San Antonio Heights, CA
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in May
San Antonio Heights, CA
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
San Antonio Heights, CA
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in May
San Antonio Heights, CA
- Average humidity in May: 54%
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
San Antonio Heights, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
San Antonio Heights, CA
- Average rainfall days in May: 3.8 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days in May
San Antonio Heights, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
San Antonio Heights, CA
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in May
San Antonio Heights, CA
- Average sunshine days in May: 26 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in May
San Antonio Heights, CA
- Average UV index in May: 6
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
San Antonio Heights, CA
- Average cloud cover in May: 13
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
San Antonio Heights, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
