Karuizawa
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Weather Forecast for Karuizawa

Nagano, Japan

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Patchy rain nearby

Current Weather - Karuizawa: 18°C

Nagano, Japan

Patchy rain nearby

Feels like 17°C

Wind

12 km/h WNW

Humidity

81%

Pressure

1009 mb

UV Index

4

Visibility

10 km
Sunny

Sunny

Wednesday, October 14, 2026

High

20°C

Low

9°C

Rain Chance

71%

Hourly Forecast

Sunny 11°C
06:00
Sunny 13°C
07:00
Overcast 17°C
08:00
Sunny 17°C
09:00
Light drizzle 20°C
10:00
Light rain 15°C
11:00
Mist 14°C
12:00
Patchy rain nearby 18°C
13:00
Patchy rain nearby 18°C
14:00
Patchy rain nearby 18°C
15:00
Sunny 17°C
16:00
Patchy rain nearby 14°C
17:00
Clear 12°C
18:00
Patchy rain nearby 12°C
19:00
Partly Cloudy 12°C
20:00
Patchy rain nearby 11°C
21:00
Patchy rain nearby 10°C
22:00
Patchy rain nearby 9°C
23:00
Oct 15

Day Statistics

Maximum Wind

14 km/h

Humidity

86%

Precipitation

3 mm

UV Index

4

Visibility

8 km

Rain Chance

71%

Snow Chance

0%

Sun & Moon

Sunrise

05:51 AM

Sunset

05:11 PM

Moonrise

09:38 AM

Moonset

07:07 PM

Moon Phase

Waxing Crescent

Moon Illumination

18%

Air Quality

PM2.5

8.2

μg/m³

PM10

8.7

μg/m³

NO₂

9

μg/m³

O₃

72.2

μg/m³

SO₂

3

μg/m³

CO

171.9

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

453.76

Diffuse Radiation

317.87

DNI

197.43

GTI

325.55