June weather forecastSan Marcos, CA
June
Weather in June
The first month of the summer, June, is a moderately hot month in San Marcos, California, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.2°F (24°C).Temperature
With the advent of June, San Marcos's high-temperatures adjust to a warm 75.2°F (24°C), closely aligning with the preceding month. Throughout June, an average low-temperature of 56.5°F (13.6°C) is experienced.Humidity
In San Marcos, the average relative humidity in June is 68%.Rainfall
June is the month with the least rainfall. Rain falls for 1.2 days and accumulates 0.08" (2mm) of precipitation.Daylight
June has the longest days of the year in San Marcos, with an average of 14h and 18min of daylight.On the first day of June, sunrise is at 5:40 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:01 pm PDT.
Sunshine
In June, the average sunshine is 12h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in San Marcos. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In June, the UV index of 6 transforms into the following advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
San Marcos, CA
- Average high temperature in June: 75.2°F
The warmest month (with the highest average high temperature) is August (81.9°F).
The months with the lowest average high temperature are February and December (63.3°F).
- Average low temperature in June: 56.5°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (48°F).
Average pressure in June
San Marcos, CA
- Average pressure in June: 29.87"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in June
San Marcos, CA
- Average wind speed in June: 5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).
Average humidity in June
San Marcos, CA
- Average humidity in June: 68%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in June
San Marcos, CA
- Average rainfall in June: 0.08"
The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in June
San Marcos, CA
- Average rainfall days in June: 1.2 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in June /
Average sunshine in June
San Marcos, CA
- Average daylight in June: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in June: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in June
San Marcos, CA
- Average sunshine days in June: 22.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20 days).
Average UV index in June
San Marcos, CA
- Average UV index in June: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in June
San Marcos, CA
- Average cloud cover in June: 10
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in June
San Marcos, CA
- Average visibility in June: 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).
