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Weather Forecast for Nagano

Nagano, Japan

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Patchy rain nearby

Current Weather - Nagano: 27°C

Nagano, Japan

Patchy rain nearby

Feels like 28°C

Wind

7 km/h ENE

Humidity

65%

Pressure

1009 mb

UV Index

9

Visibility

9 km
Patchy rain nearby

Patchy rain nearby

Friday, August 14, 2026

High

28°C

Low

17°C

Rain Chance

89%

Hourly Forecast

Patchy rain nearby 17°C
05:00
Patchy rain nearby 19°C
06:00
Patchy rain nearby 20°C
07:00
Patchy rain nearby 21°C
08:00
Patchy rain nearby 22°C
09:00
Patchy rain nearby 25°C
10:00
Patchy rain nearby 26°C
11:00
Patchy rain nearby 27°C
12:00
Patchy light drizzle 28°C
13:00
Light rain shower 27°C
14:00
Patchy rain nearby 26°C
15:00
Patchy rain nearby 25°C
16:00
Patchy light rain 24°C
17:00
Light rain shower 18°C
18:00
Light rain shower 17°C
19:00
Light rain shower 17°C
20:00
Light rain shower 18°C
21:00
Fog 19°C
22:00
Fog 20°C
23:00
Aug 15

Day Statistics

Maximum Wind

7 km/h

Humidity

89%

Precipitation

10 mm

UV Index

9

Visibility

7 km

Rain Chance

89%

Snow Chance

0%

Sun & Moon

Sunrise

05:05 AM

Sunset

06:39 PM

Moonrise

06:13 AM

Moonset

07:26 PM

Moon Phase

Waxing Crescent

Moon Illumination

5%

Air Quality

PM2.5

3.1

μg/m³

PM10

3.1

μg/m³

NO₂

7.6

μg/m³

O₃

44.3

μg/m³

SO₂

2.6

μg/m³

CO

140.7

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

795.98

Diffuse Radiation

230.4

DNI

560.24

GTI

561.93