San Bruno
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San Bruno Weather in July

San Bruno in July sees pleasant temperatures, with highs around 22°C (72°F) and overnight lows of 13°C (55°F). It's the driest month of the year, with very little rainfall to worry about.

Rainfall in San Bruno in July

Known for its least rainfall, this month is the best of the year for people who like to spend time outdoors. Typically, you can expect about a single day of rain this month, with 0.6 mm (0.02 in) on average. On the rare occasion it rains this month, it usually amounts to very little.

Temperature in San Bruno in July

July is a excellent month in San Bruno, with 22°C (72°F) during the day and 13°C (55°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. 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 San Bruno in July

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

Wind Speed in San Bruno in July

Wind speeds average 7 m/s (14 knots) during July. At this speed, you experience strong wind that can make entire trees sway and create resistance when walking. Since this is an average, expect variation from moderate windy periods to particularly gusty days when umbrellas become difficult to control.

Average water temperature in July

The water is 14°C (57°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

If you're inclined towards comfortable temperatures and drier conditions, July is a good time to visit San Bruno.

San Bruno Temperature in July

Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Water Temperature
14°C (57°F) *
Chance of Rain
3%
Precipitation
0.6 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 (2 KM, 1 Miles).

San Bruno Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Bruno - 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 San Bruno in July

For San Bruno in July, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. With water temperatures around 14°C (57°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in San Bruno 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

San Bruno 3-Day Forecast

Popular in July

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

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