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      Elev 30 ft, 4.567 °S 44.598 °W

      São Mateus do Maranhão, BR

      Sun, Oct 18, 2026
      Today
      Sun 10/18
      High 100°f
      11% Precip. / 0 in
      Mostly cloudy skies this morning will become partly cloudy this afternoon. High near 100F. Winds NE at 10 to 15 mph.
      Tonight
      Sun 10/18
      Low 77°f
      11% Precip. / 0 in
      Some clouds. Low 77F. Winds NNE at 5 to 10 mph.
      Sunrise 5:36 AM
      Sunset 5:49 PM
      Moonrise 11:51 AM
      Moonset -
      First Quarter, 49% visible
      Hourly Forecast
      Now
      84°
      8AM
      84°
      9AM
      87°
      10AM
      90°
      11AM
      93°
      12PM
      95°
      1PM
      97°
      2PM
      98°
      3PM
      99°
      4PM
      98°
      5PM
      97°
      5:49PM
      Sunset
      6PM
      94°
      7PM
      90°
      8PM
      88°
      9PM
      85°
      10PM
      84°
      11PM
      83°
      12AM
      81°
      1AM
      80°
      2AM
      80°
      3AM
      79°
      4AM
      79°
      5AM
      78°
      5:36AM
      Sunrise
      6AM
      78°
      7AM
      80°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      8:00 am
      Mostly Cloudy
      84°F 89°F 1% 0in 62% 71°F 66% 9 mph NE 29.92in
      9:00 am
      Mostly Cloudy
      87°F 93°F 0% 0in 64% 70°F 57% 10 mph NE 29.93in
      10:00 am
      Mostly Cloudy
      90°F 96°F 1% 0in 63% 70°F 52% 10 mph ENE 29.91in
      11:00 am
      Mostly Cloudy
      93°F 100°F 2% 0in 76% 69°F 47% 8 mph ENE 29.89in
      12:00 pm
      Partly Cloudy
      95°F 103°F 1% 0in 55% 69°F 43% 6 mph ENE 29.85in
      1:00 pm
      Partly Cloudy
      97°F 105°F 1% 0in 37% 69°F 40% 6 mph NE 29.81in
      2:00 pm
      Partly Cloudy
      98°F 106°F 3% 0in 43% 68°F 38% 5 mph NE 29.77in
      3:00 pm
      Partly Cloudy
      99°F 106°F 3% 0in 54% 67°F 36% 5 mph NNE 29.74in
      4:00 pm
      Mostly Cloudy
      98°F 105°F 0% 0in 69% 67°F 37% 6 mph NNE 29.73in
      5:00 pm
      Partly Cloudy
      97°F 103°F 0% 0in 50% 67°F 39% 6 mph NNE 29.74in
      6:00 pm
      Partly Cloudy
      94°F 100°F 12% 0in 44% 69°F 44% 8 mph N 29.76in
      7:00 pm
      Partly Cloudy
      90°F 97°F 12% 0in 31% 70°F 51% 9 mph N 29.8in
      8:00 pm
      Clear
      88°F 95°F 7% 0in 18% 71°F 57% 9 mph N 29.83in
      9:00 pm
      Mostly Clear
      85°F 91°F 2% 0in 21% 71°F 61% 9 mph N 29.86in
      10:00 pm
      Partly Cloudy
      84°F 89°F 2% 0in 33% 71°F 64% 8 mph N 29.87in
      11:00 pm
      Clear
      83°F 87°F 2% 0in 18% 70°F 66% 9 mph NNE 29.87in
      Additional Conditions
      1. Pressure 29.92 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point71°F
      5. Humidity 66%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      SJBY Station History
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 100°F -°F -°F
      4. Low 78°F -°F -°F
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 100°F -°F -°F
      4. Low 77°F -°F -°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 5:36 AM 5:49 PM
      3. Civil Twilight 5:15 AM 6:10 PM
      4. Nautical Twilight 4:51 AM 6:34PM
      5. Astronomical Twilight 4:26 AM 6:59 PM
      1. Length of Visible Light 12h 54m
      2. Length of Day 12h 12m
      3. Tomorrow will be 12 seconds longer
      1. Moon 11:51 AM -
      2. First Quarter49% of the Moon is Illuminated
      Oct 18
      Waxing Half First Qtr
      Oct 26
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 9
      New Moon
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary