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
Foster City's entry into June measures an average high-temperature of a pleasant 68.5°F (20.3°C), closely parallel to the preceding month. The average temperature drops to a fresh 53.4°F (11.9°C) during the night in the month of June.Humidity
In Foster City, the average relative humidity in June is 73%.Rainfall
In Foster City, rain does not fall in June through August.Daylight
June has the longest days of the year, with an average of 14h and 42min of daylight.On the first day of June, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:34 pm PDT.
Sunshine
In June, the average sunshine is 11.6h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index in Foster City, California. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 5 during June leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in June?
What is the average humidity in June?
What is the driest month?
Does it rain in June?
When are the longest days in Foster City?
How many hours of daylight does Foster City have in June?
When is the sunrise / sunset in June?
How long on average sun shines in June?
What is the month with the highest UV index?
What is the UV index intensity in June in Foster City?
Average temperature in June
Foster City, CA
- Average high temperature in June: 68.5°F
The warmest months (with the highest average high temperature) are August and September (71.2°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in June: 53.4°F
The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in June
Foster City, CA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in June
Foster City, CA
- Average wind speed in June: 7.2mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.9mph).
Average humidity in June
Foster City, CA
- Average humidity in June: 73%
The months with the highest relative humidity are March and August (76%).
The months with the lowest relative humidity are October and November (70%).
Average rainfall in June
Foster City, CA
- Average rainfall in June: 0"
The wettest month (with the highest rainfall) is February (0.55").
The driest months (with the least rainfall) are June, July and August (0").
Average rainfall days in June
Foster City, CA
- Average rainfall days in June: 0.4 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is July (0.3 days).
Average daylight in June /
Average sunshine in June
Foster City, 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 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in June
Foster City, CA
- Average sunshine days in June: 29.3 days
The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is February (23.3 days).
Average UV index in June
Foster City, CA
- Average UV index in June: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).
Average cloud cover in June
Foster City, CA
- Average cloud cover in June: 15
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in June
Foster City, 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).
Foster City, California, USA
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