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Weather Forecast for Karuizawa

Nagano, Japan

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Patchy rain nearby

Current Weather - Karuizawa: 30°C

Nagano, Japan

Patchy rain nearby

Feels like 31°C

Wind

4 km/h NE

Humidity

51%

Pressure

1010 mb

UV Index

11

Visibility

10 km
Patchy rain nearby

Patchy rain nearby

Friday, July 24, 2026

High

31°C

Low

20°C

Rain Chance

84%

Hourly Forecast

Mist 21°C
05:00
Patchy rain nearby 22°C
06:00
Patchy rain nearby 23°C
07:00
Patchy rain nearby 24°C
08:00
Patchy rain nearby 26°C
09:00
Patchy rain nearby 28°C
10:00
Patchy rain nearby 29°C
11:00
Patchy rain nearby 30°C
12:00
Patchy rain nearby 31°C
13:00
Patchy rain nearby 30°C
14:00
Patchy light rain in area with thunder 27°C
15:00
Patchy rain nearby 26°C
16:00
Light rain shower 24°C
17:00
Patchy rain nearby 23°C
18:00
Light rain shower 21°C
19:00
Light rain shower 21°C
20:00
Light rain shower 21°C
21:00
Light rain shower 20°C
22:00
Fog 20°C
23:00
Jul 25

Day Statistics

Maximum Wind

10 km/h

Humidity

84%

Precipitation

8 mm

UV Index

11

Visibility

7 km

Rain Chance

84%

Snow Chance

0%

Sun & Moon

Sunrise

04:46 AM

Sunset

06:58 PM

Moonrise

03:14 PM

Moonset

Does not set today

Moon Phase

Waxing Gibbous

Moon Illumination

82%

Air Quality

PM2.5

10.1

μg/m³

PM10

10.8

μg/m³

NO₂

6.5

μg/m³

O₃

74.2

μg/m³

SO₂

1.6

μg/m³

CO

167.9

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

888.16

Diffuse Radiation

109.01

DNI

699.38

GTI

637.57