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      Dense Fog Advisory
      until 12:00 PM JST
      Elev 946 ft, 36.323 °N 138.624 °E

      Nagakura, JP

      Karuizawa Machi Station63°
      Updated: 7:41 AM JST on September 19, 2026 (GMT +9)
      2 minutes ago
      74°
      57°
      63
      Feels Like 63
      Partly Cloudy
      N
      3
      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
        Sat 09/19
        High 74°f
         14% Precip. / 0 in
        Clouds and some sun this morning with more clouds for this afternoon. High 74F. Winds E at 5 to 10 mph.
        Tonight
        Sat 09/19
        Low 63°f
         54% Precip. / 0.07 in
        Cloudy with occasional light rain . Low 63F. Winds light and variable. Chance of rain 50%.
        Tomorrow
        Sun 09/20
        High 70°f63°f
         68% Precip. / 0.16 in
        Cloudy. Some light rain is likely. High near 70F. Winds E at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        63°
        8AM
        64°
        9AM
        66°
        10AM
        68°
        11AM
        70°
        12PM
        71°
        1PM
        73°
        2PM
        73°
        3PM
        72°
        4PM
        71°
        5PM
        69°
        5:47PM
        Sunset
        6PM
        67°
        7PM
        66°
        8PM
        30%
        66°
        9PM
        35%
        66°
        10PM
        35%
        65°
        11PM
        41%
        65°
        12AM
        44%
        65°
        1AM
        55%
        65°
        2AM
        55%
        65°
        3AM
        55%
        65°
        4AM
        53%
        64°
        5AM
        47%
        65°
        5:31AM
        Sunrise
        6AM
        47%
        65°
        7AM
        38%
        65°
        Precipitation
        55%
        Pollen
        None
        Air Quality
        20
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.16 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point59°F
        5. Humidity 87%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         RJAF Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 74°F -°F -°F
        4. Low 57°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.07 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 70°F -°F -°F
        4. Low 57°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 5:29 AM 5:49 PM
        3. Civil Twilight 5:04 AM 6:14 PM
        4. Nautical Twilight 4:33 AM 6:45PM
        5. Astronomical Twilight 4:03 AM 7:15 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 19m
        3. Tomorrow will be 2 minutes 17 seconds shorter
        1. Moon 12:32 PM 9:46 PM
        2. Waxing Crescent43% of the Moon is Illuminated
        Sep 19
        Waxing Half First Qtr
        Sep 27
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 11
        New Moon
        Precipitation
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