Going from a maximum of +26°C during the day to a minimum of +12°C during the night, the temperature in July averages around +21°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +19°C to +19°C.
San Francisco is typically warm in July.
Maximum temperatures go down compared to the previous month from +23°C to +23°C. The minimum temperature also goes up from +13°C to +13°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the warmest months in San Francisco, here is the comparison with other months:
June | July | August | ||||
---|---|---|---|---|---|---|
Avg. temperature | ||||||
+23°C | +23°C | +24°C | ||||
Min. temperature | ||||||
+8°C | +10°C | +10°C | ||||
Max. temperature | ||||||
+36°C | +35°C | +34°C | ||||
Rainfall | ||||||
3 mm | 0 mm | 1 mm | ||||
Wind | ||||||
3 m/s | 2 m/s | 2 m/s | ||||
Humidity | ||||||
79% | 82% | 83% | ||||
Air pressure | ||||||
1012 HPa | 1012 HPa | 1012 HPa | ||||
Sunny days | ||||||
12 | 7 | 7 | ||||
Cloudy days | ||||||
18 | 24 | 24 | ||||
Rainy days | ||||||
0 | 0 | 0 | ||||
Snowy days | ||||||
0 | 0 | 0 |
July weather is still as good as in June. The temperature levels stay the same in the area of +23°C for average maximum temperature during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 3 mm to 0 mm. Humidity rises from 79% to 82%. Winds are calmer in comparison to June, going down from 3 m/s to 2 m/s on average. The days becoming less sunny, going from 12 sunny days in June to 7 in July.
August brings much the same weather, it remains good.
The average wind speed is 1 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in San Francisco is gradually increasing during July, going from 1 m/s to 3 m/s over the course of the month.
The climate in San Francisco in July has not changed much over the last 43 years.
The average temperature was the lowest in 2010 (+25°C) and the highest in 1988 (+31°C). The driest year was 1983 with only 0 mm of rainfall, and the wettest year was 2020 with 0 mm.
For this page, we’ve looked at the typical weather in San Francisco, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.