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      Elev 256 ft, 32.561 °N 117.047 °W

      San Ysidro, CA

      San Ysidro Ave De La Cruz Station78°
      Updated: 11:33 AM PDT on September 20, 2026 (GMT -7)
      7 minutes ago
      78°
      67°
      78
      Feels Like 79
      Mostly Cloudy
      N
      7
      Similar 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
        Mon 09/21
        High 78°f
         2% Precip. / 0 in
        Mainly cloudy. High 78F. Winds WSW at 10 to 15 mph.
        Tonight
        Mon 09/21
        Low 67°f
         20% Precip. / 0 in
        Considerable cloudiness. Low 67F. Winds W at 5 to 10 mph.
        Tomorrow
        Tue 09/22
        High 74°f66°f
         12% Precip. / 0 in
        Cloudy skies early, then partly cloudy in the afternoon. High 74F. Winds WSW at 10 to 15 mph.
        Hourly Forecast
        Now
        78°
        12PM
        78°
        1PM
        78°
        2PM
        77°
        3PM
        75°
        4PM
        74°
        5PM
        73°
        6PM
        72°
        6:47PM
        Sunset
        7PM
        70°
        8PM
        68°
        9PM
        68°
        10PM
        68°
        11PM
        68°
        12AM
        68°
        1AM
        68°
        2AM
        68°
        3AM
        68°
        4AM
        68°
        5AM
        68°
        6AM
        68°
        6:36AM
        Sunrise
        7AM
        68°
        8AM
        68°
        9AM
        69°
        10AM
        70°
        11AM
        72°
        Precipitation
        20%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        66
        Moderate
        UV Index
        6
        High
        Additional Conditions
        1. Pressure 29.95 in
        2. Visibility 9 miles
        3. Clouds Mostly Cloudy
        4. Dew Point62°F
        5. Humidity 58%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSDM Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 77°F 97°F 2015
        4. Low 67°F 64°F 50°F 1925
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 77°F 106°F
        4. Low 67°F 64°F 49°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:35 AM 6:47 PM
        3. Civil Twilight 6:10 AM 7:11 PM
        4. Nautical Twilight 5:41 AM 7:40PM
        5. Astronomical Twilight 5:12 AM 8:09 PM
        1. Length of Visible Light 13h 1m
        2. Length of Day 12h 12m
        3. Tomorrow will be 2 minutes shorter
        1. Moon 3:30 PM 12:35 AM
        2. Waxing Gibbous69% 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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