South San Francisco
Weather by month
Current –

South San Francisco Weather in July

July in South San Francisco brings pleasant temperatures, with highs of 21°C (70°F) and nights dropping to 13°C (55°F). It's also the driest month of the year, ideal for those who want to avoid rain.

Rainfall in South San Francisco in July

The risk of rain is at its lowest this month, making it a reliable choice for outdoor plans. On average, there are about a single day with rain during this month, averaging 0.5 mm (0.02 in). Any rain that does arrive is likely to be light drizzle rather than a proper shower.

Temperature in South San Francisco in July

July is a excellent month in South San Francisco, with 21°C (70°F) during the day and 13°C (55°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in South San Francisco in July

The month enjoys around 313 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in South San Francisco in July

July has wind speeds averaging 7 m/s (14 knots). You can expect generally windy conditions with strong breezes affecting daily routines on typical days. As an average, some days have moderate strong winds while others feature more intense gusts that make walking and movement challenging.

Average water temperature in July

The water temperature is 14°C (57°F), chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit South San Francisco.

South San Francisco Temperature in July

Min Temperature
13°C (55°F)
Max Temperature
21°C (70°F)
Water Temperature
14°C (57°F) *
Chance of Rain
3%
Precipitation
0.5 mm (0.02 in)
Rainy days
a single day
Humidity
75% *
Windspeed
7 m/s (14 knots) *
Sunshine
313 hours *
Percentage Sunshine
70% *
* Data from: San Francisco, the United States of America (4 KM, 2 Miles).

South San Francisco Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in South San Francisco - and find the best time to visit.

Best Places in the United States of America in July

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in South San Francisco in July

Comfortable temperatures call for an easy wardrobe in July. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in South San Francisco in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    10/10
  • Walking
    10/10
  • Barbeque
    9/10
  • Camping
    10/10
  • Outdoor sports
    10/10

South San Francisco 3-Day Forecast

Popular in July

Where to go in July - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.