Weather in City and County of San Francisco, United States
Weather Advisories
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Today's weather summary
The weather in City and County of San Francisco on Friday, April 19th, will vary throughout the day from foggy weather to clear.
Looks like fog will emerge in the early morning and a high probability for clear skies around noon.
Weather details for City and County of San Francisco, on Friday, April 19th:
The maximum temperature during the day will be 59°F at about 2 pm. The day will have very high relative humidity, with average humidity of 83%, ranging from 70% to a maximum value of 90% at about 6 am. The wind will be breezy, and will get up to 13 mph at 5 pm, blowing from the west. The cloud coverage will range from 10% around 2 pm to as high as 100% around 11 pm with an average of 63%.
There is no probability for any precipitation throughout the day. The dew point will range from 46°F up to a maximum value of 50°F around noon.
The visibility is expected to be fair with average visibility of 6 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1015 hPa. Sunrise will be at 6:29 am, and sunset at 7:47 pm. The day will have 13 hours and 18 minutes of daylight.
Air quality forecast for City and County of San Francisco, on Friday, April 19th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 47 and 86.
Pollen forecast for City and County of San Francisco, on Friday, April 19th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in City and County of San Francisco on Saturday, April 20th, will be cloudy throughout the day, together with clear skies during the morning.
There is also a chance for fog before dawn at about 12 am.
Weather information for City and County of San Francisco, on Saturday, April 20th:
The maximum temperature of the day is going to be 60°F at about 4 pm. The day will have very high relative humidity, with average humidity of 73%, ranging from 54% to a maximum value of 89% at about 1 am. The wind will be breezy, and will get up to 16 mph at 6 pm, blowing from the west. The cloud coverage will range from 0% around 4 pm to as high as 100% around 11 pm with an average of 65%.
There is no probability for any precipitation throughout the day. The dew point will range from 42°F up to a maximum value of 48°F around 11 pm.
The visibility is expected to be good with average visibility of 8 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1018 hPa. Sunrise will be at 6:28 am, and sunset at 7:48 pm. The day will have 13 hours and 20 minutes of daylight.
Air quality forecast for City and County of San Francisco, on Saturday, April 20th:
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 36 and 49.
Pollen forecast for City and County of San Francisco, on Saturday, April 20th:
Tree pollen on this day is expected to have medium risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
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