Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
The arrival of June signals a slight increase in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) in May to a moderately hot 76.5°F (24.7°C). Sunnyvale sees a major change from daytime highs, with the nighttime temperature dipping to a fresh 53.4°F (11.9°C) on average during June.Humidity
In June, the average relative humidity is 64%.Rainfall
June is the last month it rains. During 1.3 rainfall days, in June, Sunnyvale aggregates 0.04" (1mm) of precipitation. In Sunnyvale, during the entire year, the rain falls for 50 days and collects up to 3.9" (99mm) of precipitation.Daylight
With an average of 14h and 42min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:48 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:32 pm PDT.
Sunshine
The average sunshine in June is 11.8h.UV index
With an average maximum UV index of 6, June is the month with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average June temperature?
What is the average humidity in June?
What is the last month it rains?
When are the longest days?
What is the average length of the day in June?
What time are sunrise and sunset in June?
How long on average sun shines in June in Sunnyvale?
When is the highest UV index?
How high is the UV index in June?
Average temperature in June
Sunnyvale, CA
- Average high temperature in June: 76.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is December (56.8°F).
- Average low temperature in June: 53.4°F
The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).
Average pressure in June
Sunnyvale, 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
Sunnyvale, CA
- Average wind speed in June: 5.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).
Average humidity in June
Sunnyvale, CA
- Average humidity in June: 64%
The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall in June
Sunnyvale, CA
- Average rainfall in June: 0.04"
The wettest months (with the highest rainfall) are February and March (0.75").
The driest month (with the least rainfall) is July (0").
Average rainfall days in June
Sunnyvale, CA
- Average rainfall days in June: 1.3 days
The month with the highest number of rainy days is March (9.6 days).
The month with the least rainy days is August (0.4 days).
Average daylight in June /
Average sunshine in June
Sunnyvale, CA
- Average daylight in June: 14h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in June
Sunnyvale, CA
- Average sunshine days in June: 28.1 days
The month with the most sunshine days is August (30.1 days).
The month with the least sunshine days is March (19.9 days).
Average UV index in June
Sunnyvale, 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
Sunnyvale, 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
Sunnyvale, 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).
Sunnyvale, California, USA
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