Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Transitioning into July, Foster City experiences an average high-temperature of a still agreeable 70.9°F (21.6°C), marking a minor shift from the preceding month. Foster City anticipates an average minimum temperature of 54.7°F (12.6°C) in the month of July.Humidity
In July, the average relative humidity in Foster City is 75%.Rainfall
June through August are months without rainfall.Daylight
In July, the average length of the day in Foster City, California, is 14h and 27min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:34 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:17 pm PDT.
Sunshine
With an average of 12h of sunshine, July has the most sunshine of the year in Foster City.UV index
The months with the highest UV index in Foster City are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during July translates into the following guidance:
Act with care - Obligation to protect against skin and eye damage is highlighted. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the usual temperature for Foster City in July?
What is the average humidity in July in Foster City?
What is the driest month in Foster City?
How many hours of daylight does Foster City have in July?
When is the sunrise / sunset in July in Foster City?
What month has the most sunshine in Foster City?
How long on average sun shines in July in Foster City?
When is the highest UV index in Foster City?
How high is the UV index in July in Foster City?
Average temperature in July
Foster City, CA
- Average high temperature in July: 70.9°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 July: 54.7°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 July
Foster City, CA
- Average pressure in July: 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 July
Foster City, CA
- Average wind speed in July: 6mph
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 July
Foster City, CA
- Average humidity in July: 75%
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 July
Foster City, CA
- Average rainfall in July: 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 July
Foster City, CA
- Average rainfall days in July: 0.3 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 July /
Average sunshine in July
Foster City, CA
- Average daylight in July: 14h and 3min
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 July: 12h and 0min
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 July
Foster City, CA
- Average sunshine days in July: 30.4 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 July
Foster City, CA
- Average UV index in July: 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 July
Foster City, CA
- Average cloud cover in July: 11
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 July
Foster City, CA
- Average visibility in July: 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
Weather forecast for your location
2. Allow the app to use your location
