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      Elev 256 ft, 32.561 °N 117.047 °W

      San Ysidro, CA

      San Ysidro Ave De La Cruz Station79°
      Updated: 12:27 PM PDT on September 21, 2026 (GMT -7)
      10 minutes ago
      77°
      67°
      79
      Feels Like 80
      Mostly Cloudy
      N
      10
      Gusts 16 mph
      Lower temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Tue 09/22
        High 76°f
         1% Precip. / 0 in
        A mix of clouds and sun. High 76F. Winds WSW at 10 to 15 mph.
        Tonight
        Tue 09/22
        Low 66°f
         9% Precip. / 0 in
        Cloudy. Low 66F. Winds WNW at 5 to 10 mph.
        Tomorrow
        Wed 09/23
        High 76°f65°f
         5% Precip. / 0 in
        Sunshine and clouds mixed. High 76F. Winds NW at 10 to 20 mph.
        Hourly Forecast
        Now
        75°
        1PM
        76°
        2PM
        75°
        3PM
        74°
        4PM
        73°
        5PM
        73°
        6PM
        71°
        6:46PM
        Sunset
        7PM
        70°
        8PM
        69°
        9PM
        69°
        10PM
        69°
        11PM
        69°
        12AM
        69°
        1AM
        68°
        2AM
        68°
        3AM
        68°
        4AM
        69°
        5AM
        68°
        6AM
        67°
        6:36AM
        Sunrise
        7AM
        68°
        8AM
        69°
        9AM
        71°
        10AM
        73°
        11AM
        75°
        12PM
        75°
        Precipitation
        10%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        51
        Moderate
        UV Index
        8
        Very High
        Additional Conditions
        1. Pressure 29.93 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point60°F
        5. Humidity 59%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSDM Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 77°F 106°F 1939
        4. Low 67°F 64°F 49°F 1925
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 76°F 77°F 99°F
        4. Low 67°F 63°F 50°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:35 AM 6:45 PM
        3. Civil Twilight 6:11 AM 7:10 PM
        4. Nautical Twilight 5:42 AM 7:39PM
        5. Astronomical Twilight 5:13 AM 8:08 PM
        1. Length of Visible Light 12h 59m
        2. Length of Day 12h 10m
        3. Tomorrow will be 1 minute 58 seconds shorter
        1. Moon 4:07 PM 1:33 AM
        2. Waxing Gibbous78% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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