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FORECAST FOR 5 DAYS

The table below shows the combined weather forecast for San Francisco to five days ahead, automatically compiled according to several independent sources. Time - local. The atmospheric pressure in mm Hg - at the level of the city (the station).

The indicators of Teff (effective temperature), Tefs (effective temperature of the sun), and a verbal description of comfort weather (see explanation below) added to the table.

Weather in San Francisco


Date Time Weather Air temperature, °C Atmospheric pressure, mm Wind dir. Wind speed Teff,°C Tefs,°C Comfort weather
16 July
monday
night
4 h
Clear +14 760 W 1 m/s +14 +14 warm
morning
10 h
Partly sunny +16 761 W 2 m/s +16 +23 warm
day
16 h
Clear +19 759 W 3 m/s +20 +20 warm
evening
22 h
Clear +18 760 SW 1 m/s +19 +19 warm
17 July
tuesday
night
4 h
Clear +15 759 SW 1 m/s +15 +15 warm
morning
10 h
Clear +17 760 W 1 m/s +18 +33 warm
day
16 h
Clear +21 759 W 3 m/s +23 +23 comfort
evening
22 h
Clear +18 759 SW 2 m/s +19 +19 warm
18 July
wednesday
night
4 h
Clear +15 759 SW 1 m/s +15 +15 warm
morning
10 h
Clear +18 760 SW 1 m/s +19 +35 warm
day
16 h
Clear +22 759 SW 3 m/s +23 +23 comfort
evening
22 h
Clear +20 759 SW 1 m/s +22 +22 comfort
19 July
thursday
night
4 h
Cloudy +17 758 S 1 m/s +18 +18 warm
morning
10 h
Mostly cloudy +19 759 SW 1 m/s +21 +25 warm
day
16 h
Clear +24 757 SW 3 m/s +26 +26 hot
evening
22 h
Clear +21 758 SW 1 m/s +24 +24 comfort
20 July
friday
night
4 h
Clear +18 757 S 1 m/s +19 +19 warm
morning
10 h
Clear +20 759 SW 2 m/s +21 +35 comfort
day
16 h
Clear +23 758 SW 4 m/s +24 +24 comfort
evening
22 h
Clear +20 759 SW 2 m/s +22 +22 comfort

Teff - Effective temperature - the temperature that a man dressed in accordance with the season feels. Taken into account when calculating the effect of humidity, wind speed and atmospheric pressure on the human sensation of heat.

Tefs - The effective temperature of the sun - the temperature that a person feels, adjusted for solar radiation. Depends on the amount of cloud cover and height of the sun above the horizon. At night and in cloudy weather correction is zero.

Weather comfort - a verbal response, characterized by favorable or unfavorable weather conditions forecast for a man dressed in accordance with the season. Used as relative characteristics: warm, cool, cold, very cold, showing how the expected Teff will be higher or lower than normal, and the absolute: the danger of sunstroke, the risk of overheating, hot, very hot and stuffy, very stuffy, comfort, danger colds, the risk of frostbite, arising when the Teff, Tefs, air temperature or combinations of specific criteria. For more details - see Explanation to section.



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