San Francisco Weather in July
United States · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
July in San Francisco sees average temperatures ranging from a low of 13.2°C (55.8°F) to a high of 18.5°C (65.3°F), with a mean of 15.4°C (59.7°F). Compared to the annual average of 13.5°C (56.3°F), this month is 1.9°C warmer than the yearly norm. Precipitation averages 0.2mm, making it approximately 49.0mm drier than the monthly average of 49.0mm. This is the driest month of the year, with just 0.2mm of precipitation. The city receives an average of 12.8 hours of sunshine per day during July, with relative humidity averaging 80.7%. Wind speeds reach an average maximum of 30.2 km/h. For travelers, this month offers a temperature experience in San Francisco, with drier-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in San Francisco, ignore the season — focus on the hour. I hiked Lands End in July at 2pm in a t-shirt and was shivering by 4pm when the fog rolled in. The 5°C temperature swing between coast and bay is real. Best running conditions: September-October, when the marine layer retreats and 22°C hits the city. Pack a windbreaker for any coastal trail, year-round. Marin Headlands is magnificent but windy; aim for 10am-2pm. February-March brings surprisingly green hills and empty trails — my favorite hiking window.
July vs Adjacent Months
| Metric | June | July | August |
|---|---|---|---|
| Mean Temp | 15.2°C (59.4°F) | 15.4°C (59.7°F) | 16.6°C (61.9°F) |
| Rainfall | 2.0mm | 0.2mm | 0.7mm |
| Sunshine | 13.1 hrs | 12.8 hrs | 12.2 hrs |
| Humidity | 77.1% | 80.7% | 81.0% |
| Wind | 32.9 km/h | 30.2 km/h | 29.6 km/h |
| Rainy Days | 1.4 | 0.2 | 1.4 |
Seasonal Context
July falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting San Francisco in July, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in San Francisco in July?
The average temperature in San Francisco during July ranges from 13.2°C (55.8°F) to 18.5°C (65.3°F), with a mean of 15.4°C (59.7°F).
How much does it rain in San Francisco in July?
San Francisco receives an average of 0.2mm of precipitation in July, spread across approximately 0.2 rainy days. This is the driest month of the year.
What should I pack for San Francisco in July?
Based on July weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is July a good time to visit San Francisco?
July is a good time to visit San Francisco, with comfortable temperatures and manageable rainfall.
Other Months for San Francisco
Cities with Similar July Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 37.77°, -122.42°. Timezone: America/Los_Angeles. Last updated: 2026-07-30.