June weather forecastAlviso, CA
June
Weather in June
June, the first month of the summer in Alviso, is a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 53.1°F (11.7°C).Temperature
The shift from May to June is marked by a slight increase in the average high-temperature, moving from an agreeable 71.4°F (21.9°C) to a warm 78.6°F (25.9°C). Alviso's nighttime temperature in June demonstrates a noticeable plunge to a fresh 53.1°F (11.7°C).Humidity
The average relative humidity in June is 60%.Rainfall
June through August are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.04" (1mm) of rain.Daylight
The month with the longest days is June, with an average of 14h and 42min of daylight.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, in Alviso, sunrise is at 5:50 am and sunset at 8:32 pm PDT.
Sunshine
In Alviso, the average sunshine in June is 11.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In June, a regular UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Alviso, CA
- Average high temperature in June: 78.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in June: 53.1°F
The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are January and December (42.6°F).
Average pressure in June
Alviso, CA
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in June
Alviso, CA
- Average wind speed in June: 5.5mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest months (with the lowest average wind speed) are October and November (4.3mph).
Average humidity in June
Alviso, CA
- Average humidity in June: 60%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (58%).
Average rainfall in June
Alviso, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is March (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").
Average rainfall days in June
Alviso, CA
- Average rainfall days in June: 1.3 days
The month with the highest number of rainy days is March (9.9 days).
The month with the least rainy days is August (0.4 days).
Average daylight in June /
Average sunshine in June
Alviso, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in June
Alviso, CA
- Average sunshine days in June: 28.1 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.5 days).
Average UV index in June
Alviso, CA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in June
Alviso, CA
- Average cloud cover in June: 11
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in June
Alviso, 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).





