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      Heat Advisory
      until 5:00 PM AST
      Elev 148 ft, 18.082 °N 67.039 °W

      San Germán, PR

      Vivoni Station94°
      Updated: 12:59 PM AST on September 19, 2026 (GMT -4)
      6 minutes ago
      93°
      74°
      94
      Feels Like 104
      Partly Cloudy
      N
      10
      Gusts 19 mph
      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
        Sat 09/19
        High 92°f
         59% Precip. / 0.01 in
        Mixed clouds and sun with scattered thunderstorms. High 92F. Winds E at 5 to 10 mph. Chance of rain 60%.
        Tonight
        Sat 09/19
        Low 76°f
         15% Precip. / 0 in
        Cloudy early with some clearing expected late. Low 76F. Winds light and variable.
        Tomorrow
        Sun 09/20
        High 89°f77°f
         82% Precip. / 0.18 in
        Partly cloudy in the morning. Thunderstorms developing later in the day. High 89F. Winds ESE at 10 to 15 mph. Chance of rain 80%.
        Hourly Forecast
        Now
        91°
        1PM
        90°
        2PM
        34%
        89°
        3PM
        50%
        87°
        4PM
        46%
        84°
        5PM
        83°
        6PM
        81°
        6:26PM
        Sunset
        7PM
        81°
        8PM
        80°
        9PM
        80°
        10PM
        79°
        11PM
        79°
        12AM
        79°
        1AM
        78°
        2AM
        78°
        3AM
        77°
        4AM
        78°
        5AM
        77°
        6AM
        78°
        6:16AM
        Sunrise
        7AM
        78°
        8AM
        82°
        9AM
        84°
        10AM
        87°
        11AM
        88°
        12PM
        38%
        89°
        Precipitation
        50%
        Thunderstorms possible around 2:30 PM
        Pollen
        None
        Air Quality
        17
        Good
        UV Index
        10
        Very High
        Additional Conditions
        1. Pressure 29.93 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point75°F
        5. Humidity 60%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         TJMZ Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 93°F 91°F 95°F 1983
        4. Low 74°F 70°F 60°F 1994
        5. Rain/Snow Depth
        6. Precipitation 0.01 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 89°F 91°F 95°F
        4. Low 74°F 70°F 60°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:16 AM 6:26 PM
        3. Civil Twilight 5:54 AM 6:48 PM
        4. Nautical Twilight 5:29 AM 7:13PM
        5. Astronomical Twilight 5:04 AM 7:39 PM
        1. Length of Visible Light 12h 53m
        2. Length of Day 12h 10m
        3. Tomorrow will be 1 minute 2 seconds shorter
        1. Moon 1:41 PM -
        2. Waxing Gibbous58% 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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