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      Elev 101 ft, 27.085 °S 48.909 °W

      São Luís, BR

      Updated: 10:11 AM GMT-03:00 on September 20, 2026 (GMT -3)
      9 minutes ago
      82°
      66°
      67
      Feels Like 67
      Cloudy
      N
      5
      Higher 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
        Sun 09/20
        High 82°f
        93% Precip. / 0.11 in
        Partly cloudy early. Thunderstorms developing this afternoon. High 82F. Winds NNE at 5 to 10 mph. Chance of rain 90%.
        Tonight
        Sun 09/20
        Low 66°f
        14% Precip. / 0 in
        Partly cloudy skies. Low 66F. Winds light and variable.
        Tomorrow
        Mon 09/21
        High 83°f65°f
        74% Precip. / 0.27 in
        Partly cloudy skies during the morning hours. Thunderstorms likely in the afternoon. High 83F. Winds N at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        70°
        11AM
        73°
        12PM
        76°
        1PM
        79°
        2PM
        39%
        82°
        3PM
        89%
        81°
        4PM
        83%
        80°
        5PM
        78°
        6PM
        75°
        6:11PM
        Sunset
        7PM
        73°
        8PM
        72°
        9PM
        71°
        10PM
        70°
        11PM
        69°
        12AM
        68°
        1AM
        68°
        2AM
        67°
        3AM
        67°
        4AM
        67°
        5AM
        67°
        6AM
        67°
        6:06AM
        Sunrise
        7AM
        68°
        8AM
        73°
        9AM
        77°
        10AM
        79°
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point68°F
        5. Humidity 93%
        6. Rainfall 1.54 in
        7. Snow Depth 0 in
        SSBL Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 82°F -°F -°F
        4. Low 66°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.11 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 83°F -°F -°F
        4. Low 66°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:07 AM 6:11 PM
        3. Civil Twilight 5:44 AM 6:34 PM
        4. Nautical Twilight 5:17 AM 7:01PM
        5. Astronomical Twilight 4:50 AM 7:28 PM
        1. Length of Visible Light 12h 49m
        2. Length of Day 12h 3m
        3. Tomorrow will be 1 minute 35 seconds longer
        1. Moon 12:37 PM 2:12 AM
        2. Waxing Gibbous66% 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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        Weather Alerts
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