San Ysidro
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San Ysidro Weather in May

San Ysidro in May sees high temperatures, with highs around 22°C (72°F) and overnight lows of 14°C (57°F). With just 8.2 mm (0.3 in) of rainfall on average, rain is rarely an issue.

Rainfall in San Ysidro in May

On average, there are about 2 days with rain during this month, averaging 8.2 mm (0.3 in). Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in San Ysidro in May

May is a good time to be in San Ysidro. Days are excellent, reaching 22°C (72°F), with nights around 14°C (57°F). This kind of day-to-night contrast is typical for this time of year. At 14°C (57°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 Ysidro in May

Enjoy a sunny month with about 251 hours of sunshine, the clear skies make San Ysidro even more beautiful.

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

San Ysidro Temperature in May

Min Temperature
14°C (57°F)
Max Temperature
22°C (72°F)
Chance of Rain
7%
Precipitation
8.2 mm (0.3 in)
Rainy days
2 days
Humidity
77% *
Sunshine
251 hours *
Percentage Sunshine
58% *
* Data from: Tijuana, Mexico (2 KM, 1 Miles).

San Ysidro Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Ysidro - 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 Ysidro in May

For San Ysidro in May, 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. Almost no rain is expected, so no need to bring rain gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in San Ysidro in May

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 Ysidro 3-Day Forecast

Popular in May

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

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