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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 Station58°
      Updated: 6:57 AM JST on September 19, 2026 (GMT +9)
      12 seconds ago
      73°
      56°
      58
      Feels Like 58
      Mostly Cloudy
      N
      3
      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 73°f
         16% Precip. / 0 in
        Clouds and some sun this morning with more clouds for this afternoon. High 73F. Winds E at 5 to 10 mph.
        Tonight
        Sat 09/19
        Low 62°f
         53% Precip. / 0.06 in
        Cloudy with periods of light rain. Low 62F. Winds light and variable. Chance of rain 50%.
        Tomorrow
        Sun 09/20
        High 69°f62°f
         66% Precip. / 0.15 in
        Cloudy with periods of light rain. High 69F. Winds E at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        61°
        7AM
        61°
        8AM
        64°
        9AM
        66°
        10AM
        69°
        11AM
        70°
        12PM
        71°
        1PM
        73°
        2PM
        72°
        3PM
        71°
        4PM
        70°
        5PM
        68°
        5:47PM
        Sunset
        6PM
        66°
        7PM
        65°
        8PM
        30%
        65°
        9PM
        35%
        65°
        10PM
        35%
        64°
        11PM
        41%
        64°
        12AM
        44%
        64°
        1AM
        53%
        64°
        2AM
        53%
        64°
        3AM
        54%
        64°
        4AM
        51%
        63°
        5AM
        43%
        64°
        5:31AM
        Sunrise
        6AM
        43%
        64°
        Precipitation
        54%
        Pollen
        None
        Air Quality
        36
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.17 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point58°F
        5. Humidity 91%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         RJAF Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 73°F -°F -°F
        4. Low 56°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.06 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 69°F -°F -°F
        4. Low 56°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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