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Weather Forecast for Karuizawa

Nagano, Japan

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Sunny

Current Weather - Karuizawa: 24°C

Nagano, Japan

Sunny

Feels like 18°C

Wind

7 km/h W

Humidity

87%

Pressure

1012 mb

UV Index

2

Visibility

10 km
Partly Cloudy

Partly Cloudy

Wednesday, July 22, 2026

High

32°C

Low

19°C

Rain Chance

57%

Hourly Forecast

Patchy rain nearby 20°C
00:00
Partly Cloudy 20°C
01:00
Mist 19°C
02:00
Mist 19°C
03:00
Mist 19°C
04:00
Mist 19°C
05:00
Mist 21°C
06:00
Sunny 24°C
07:00
Partly Cloudy 26°C
08:00
Partly Cloudy 28°C
09:00
Partly Cloudy 29°C
10:00
Sunny 31°C
11:00
Sunny 32°C
12:00
Sunny 32°C
13:00
Partly Cloudy 32°C
14:00
Partly Cloudy 32°C
15:00
Patchy rain nearby 31°C
16:00
Patchy light drizzle 29°C
17:00
Patchy rain nearby 25°C
18:00
Patchy rain nearby 22°C
19:00
Clear 21°C
20:00
Partly Cloudy 21°C
21:00
Partly Cloudy 20°C
22:00
Mist 20°C
23:00
Jul 23

Day Statistics

Maximum Wind

7 km/h

Humidity

76%

Precipitation

1 mm

UV Index

11

Visibility

8 km

Rain Chance

57%

Snow Chance

0%

Sun & Moon

Sunrise

04:44 AM

Sunset

06:59 PM

Moonrise

01:06 PM

Moonset

11:20 PM

Moon Phase

First Quarter

Moon Illumination

64%

Air Quality

PM2.5

13.5

μg/m³

PM10

14

μg/m³

NO₂

8

μg/m³

O₃

74.7

μg/m³

SO₂

1.8

μg/m³

CO

165.6

μg/m³

US EPA Index: 1 GB DEFRA Index: 2

Solar Radiation Data

Shortwave Radiation

85.42

Diffuse Radiation

25.89

DNI

0.54

GTI

78.64