June weather forecastLos Altos, CA
June
Weather in June
June, the first month of the summer in Los Altos, is a warm month, with an average temperature varying between 76.6°F (24.8°C) and 53.4°F (11.9°C).Temperature
As Los Altos welcomes June, the average high-temperature displays a subtle shift, adjusting from a pleasant 69.3°F (20.7°C) in May to a warm 76.6°F (24.8°C). Nighttime in June brings a stark departure from the daily high, resting at an average low-temperature of 53.4°F (11.9°C).Humidity
In Los Altos, the average relative humidity in June is 64%.Rainfall
June through August are months with the least rain in Los Altos when the rain falls for 1.5 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
With an average of 14h and 42min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:48 am and sunset at 8:23 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:33 pm PDT.
Sunshine
In Los Altos, the average sunshine in June is 11.8h.UV index
June is the month with the highest UV index in Los Altos, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in June converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Los Altos, CA
- Average high temperature in June: 76.6°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in June: 53.4°F
The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).
Average pressure in June
Los Altos, CA
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).
Average wind speed in June
Los Altos, CA
- Average wind speed in June: 5.7mph
The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.7mph).
Average humidity in June
Los Altos, CA
- Average humidity in June: 64%
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July, September and October (63%).
Average rainfall in June
Los Altos, CA
- Average rainfall in June: 0.04"
The wettest months (with the highest rainfall) are February, March and December (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in June
Los Altos, CA
- Average rainfall days in June: 1.5 days
The month with the highest number of rainy days is March (10 days).
The month with the least rainy days is August (0.4 days).
Average daylight in June /
Average sunshine in June
Los Altos, CA
- Average daylight in June: 14h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in June: 11h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in June
Los Altos, CA
- Average sunshine days in June: 27.8 days
The months with the most sunshine days are July and August (29.8 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in June
Los Altos, CA
- Average UV index in June: 6
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in June
Los Altos, CA
- Average cloud cover in June: 12
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in June
Los Altos, 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).





