Karuizawa
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Weather Forecast for Karuizawa

Nagano, Japan

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Mist

Current Weather - Karuizawa: 17°C

Nagano, Japan

Mist

Feels like 18°C

Wind

6 km/h E

Humidity

95%

Pressure

1023 mb

UV Index

1

Visibility

2 km
Fog

Fog

Saturday, September 12, 2026

High

19°C

Low

15°C

Rain Chance

78%

Hourly Forecast

Fog 15°C
01:00
Light drizzle 16°C
02:00
Fog 16°C
03:00
Fog 16°C
04:00
Fog 16°C
05:00
Fog 16°C
06:00
Fog 16°C
07:00
Mist 17°C
08:00
Fog 17°C
09:00
Fog 17°C
10:00
Fog 18°C
11:00
Mist 18°C
12:00
Patchy rain nearby 19°C
13:00
Patchy rain nearby 19°C
14:00
Patchy rain nearby 19°C
15:00
Patchy rain nearby 18°C
16:00
Mist 18°C
17:00
Fog 17°C
18:00
Fog 17°C
19:00
Fog 16°C
20:00
Fog 16°C
21:00
Fog 16°C
22:00
Fog 16°C
23:00
Sep 13

Day Statistics

Maximum Wind

8 km/h

Humidity

97%

Precipitation

1 mm

UV Index

4

Visibility

2 km

Rain Chance

78%

Snow Chance

0%

Sun & Moon

Sunrise

05:25 AM

Sunset

05:58 PM

Moonrise

06:11 AM

Moonset

06:17 PM

Moon Phase

New Moon

Moon Illumination

3%

Air Quality

PM2.5

9.5

μg/m³

PM10

9.6

μg/m³

NO₂

8.9

μg/m³

O₃

59.6

μg/m³

SO₂

3.6

μg/m³

CO

359.8

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

12.27

Diffuse Radiation

7.68

DNI

0.86

GTI

11.32