San Bruno
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San Bruno Weather in May

With daytime temperatures of 19°C (66°F) and nighttime lows of 11°C (52°F), May in San Bruno brings pleasant temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in San Bruno in May

Typically, about 3 days will experience rainfall, with an average of 7.5 mm (0.3 in) for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.

Temperature in San Bruno in May

The excellent temperature in San Bruno in May makes it a solid month to visit, with 19°C (66°F) during the day and 11°C (52°F) at night. The difference between afternoon and evening temperatures is usually noticeable. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in San Bruno in May

Enjoy a sunny month with about 324 hours of sunshine, the clear skies make San Bruno even more beautiful.

Wind Speed in San Bruno in May

Average wind conditions reach 6 m/s (12 knots) in May. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in May

With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit San Bruno.

San Bruno Temperature in May

Min Temperature
11°C (52°F)
Max Temperature
19°C (66°F)
Water Temperature
13°C (55°F) *
Chance of Rain
8%
Precipitation
7.5 mm (0.3 in)
Rainy days
3 days
Humidity
72% *
Windspeed
6 m/s (12 knots) *
Sunshine
324 hours *
Percentage Sunshine
73% *
* 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 May

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 May →

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 May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. Expect water temperatures of around 13°C (55°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. 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 May

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

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

San Bruno 3-Day Forecast

Popular in May

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

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