Nagano Weather Conditions

Current Temperature Level

overcast
32°C
33°C23°C
Hot

Overcast

Feels Like 32°C

Chances of Rain10%

Good

33AQI

Humidity

44%

Nowovercast32°10%5 PMovercast31°12%6 PMovercast29°14%7 PMpatchy rain possible28°17%8 PMpatchy rain possible28°16%9 PMpatchy rain possible27°18%10 PMpatchy rain possible27°19%11 PMpatchy rain possible27°18%12 AMovercast26°18%1 AMovercast26°19%2 AMpatchy rain possible25°12%3 AMpartly cloudy25°10%4 AMclear25°8%5 AMclear24°9%6 AMsunny25°8%7 AMpartly cloudy26°8%8 AMovercast27°15%9 AMovercast29°13%10 AMovercast30°13%11 AMsunny31°2%12 PMsunny32°2%1 PMcloudy33°7%2 PMovercast33°10%3 PMovercast33°10%
.

Skies may remain grey and overcast.

Last Updated: 2026-08-18 16:30 (Local Time)

Nagano Weather Parameters

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Nagano 10-Days Weather Forecast

See Monthly
Today18 Aug.


Patchy rain nearby

Patchy rain nearby

Occasional light rain is expected and humidity will be 69%, with winds at 14.8 km/h.


temperature icon

33°C  /  23°C

temperature iconHumi.69 %
temperature iconPrec.1.4 mm


Sunrise icon

Sunrise

05:02 AM

13hrs 27min

Sunset icon

Sunset

06:29 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

Rain ShowerRain Shower

25 °C

84 %

0

6.8 kmph /  E

Feels Like IconFeels 29 °C

Temperature IconCover 99 %

Visibility IconVisibility 10 km

1 AM

Rain ShowerRain Shower

25 °C

87 %

0

6.5 kmph /  E

Feels Like IconFeels 28 °C

Temperature IconCover 96 %

Visibility IconVisibility 10 km

2 AM

Patchy rain nearbyPatchy rain nearby

24 °C

89 %

0

5.8 kmph /  E

Feels Like IconFeels 28 °C

Temperature IconCover 82 %

Visibility IconVisibility 9 km

3 AM

Patchy rain nearbyPatchy rain nearby

24 °C

91 %

0

5.4 kmph /  ENE

Feels Like IconFeels 28 °C

Temperature IconCover 65 %

Visibility IconVisibility 10 km

4 AM

Patchy rain nearbyPatchy rain nearby

24 °C

92 %

0

5.8 kmph /  ENE

Feels Like IconFeels 27 °C

Temperature IconCover 93 %

Visibility IconVisibility 10 km

5 AM

Patchy rain nearbyPatchy rain nearby

23 °C

93 %

0

4.7 kmph /  ENE

Feels Like IconFeels 27 °C

Temperature IconCover 98 %

Visibility IconVisibility 10 km

6 AM

Patchy rain nearbyPatchy rain nearby

24 °C

92 %

0.3

3.6 kmph /  ENE

Feels Like IconFeels 28 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 AM

Patchy rain nearbyPatchy rain nearby

25 °C

86 %

1.1

2.5 kmph /  E

Feels Like IconFeels 29 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 AM

Rain ShowerRain Shower

26 °C

81 %

2.7

2.9 kmph /  SE

Feels Like IconFeels 29 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 AM

Patchy rain nearbyPatchy rain nearby

27 °C

74 %

4.6

4.3 kmph /  SSE

Feels Like IconFeels 29 °C

Temperature IconCover 72 %

Visibility IconVisibility 10 km

10 AM

Patchy rain nearbyPatchy rain nearby

29 °C

65 %

6.7

5.8 kmph /  SSE

Feels Like IconFeels 31 °C

Temperature IconCover 88 %

Visibility IconVisibility 10 km

11 AM

Patchy rain nearbyPatchy rain nearby

31 °C

54 %

7.7

6.5 kmph /  S

Feels Like IconFeels 33 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

12 PM

OvercastOvercast

32 °C

47 %

8

6.5 kmph /  S

Feels Like IconFeels 33 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

1 PM

OvercastOvercast

32 °C

45 %

7.2

5.4 kmph /  SSW

Feels Like IconFeels 33 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

2 PM

OvercastOvercast

33 °C

43 %

5.5

6.1 kmph /  SSE

Feels Like IconFeels 34 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

3 PM

OvercastOvercast

33 °C

42 %

3.1

11.2 kmph /  SE

Feels Like IconFeels 33 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 PM

OvercastOvercast

32 °C

44 %

1.3

14.4 kmph /  SE

Feels Like IconFeels 32 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

5 PM

OvercastOvercast

31 °C

53 %

0.4

13.7 kmph /  ESE

Feels Like IconFeels 32 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

6 PM

OvercastOvercast

29 °C

60 %

0

14.8 kmph /  ESE

Feels Like IconFeels 31 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 PM

Patchy rain nearbyPatchy rain nearby

28 °C

63 %

0

11.5 kmph /  SE

Feels Like IconFeels 30 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 PM

Patchy rain nearbyPatchy rain nearby

28 °C

65 %

0

9.7 kmph /  SE

Feels Like IconFeels 30 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 PM

Patchy rain nearbyPatchy rain nearby

27 °C

67 %

0

8.3 kmph /  SE

Feels Like IconFeels 29 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 PM

Patchy rain nearbyPatchy rain nearby

27 °C

68 %

0

7.6 kmph /  SE

Feels Like IconFeels 29 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 PM

Patchy rain nearbyPatchy rain nearby

27 °C

69 %

0

7.9 kmph /  SE

Feels Like IconFeels 28 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

Temp32 °C


ConditionOvercast


Humidity44 %

Feels32 °C


Cover100 %


Visibility10 km

Wind Speed & Dir.14.4 kmph /  SE


UV1.3

Nagano 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny38°27°
2
Patchy rain nearby37°24°
3
Overcast26°23°
4
Sunny31°22°
5
Partly Cloudy33°22°
6
Patchy rain nearby34°26°
7
Partly Cloudy36°27°
8
Sunny36°27°
9
Partly Cloudy33°25°
10
Patchy rain nearby32°24°
11
Partly Cloudy28°22°
12
Patchy rain nearby25°22°
13
Rain Shower29°23°
14
Rain Shower29°23°
15
Rain Shower31°24°
16
Patchy rain nearby30°23°
17
Overcast16°11°
18Today
Patchy rain nearby34°23°
19
Overcast34°25°
20
Patchy rain nearby34°25°
21
Patchy rain nearby34°25°
22
Overcast32°25°
23
Patchy rain nearby34°25°
24
Partly Cloudy35°27°
25
Sunny36°27°
26
Rain Showers31°23°
27
Rain Showers31°23°
28
Rain Showers30°22°
29
Rain Showers31°23°
30
Rain Showers31°23°
31
Rain Showers30°23°

AugustWeather Overview

No. of days:

Sunny

Sunny

4

Cloudy

Cloudy

5

Rainy

Rainy

15

Snowy

Snowy

0


The monthly weather averages in Nagano consist of 4 sunny days, 5 cloudy days, 15 rainy days, and 0 snowy days.

Japan's Hottest Cities - August 2026

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Last Updated: 18 Aug 2026, 07:37 AM

City Weather Rankings

FAQs About Nagano Weather Conditions


1. What is the current temperature in Nagano today - 18 August 2026?

The current temperature in Nagano is 32°C, with a feels-like temperature of 32°C. Today's forecast shows a high of 33°C and a low of 23°C, giving a 10 degree swing through the day as of 04:30 PM 18 August 2026.

2. What are the current weather parameters in Nagano today?

Here is a complete overview of Nagano's current weather conditions as of 04:30 PM 18 August 2026: Condition : Overcast Temperature : 32°C Hot (Feels like 32°C) Humidity : 44% Wind Speed : 14.4 km/h from SE (131 degrees), Gust 7 m/s UV Index : 1.3 (Low Air Pressure : 1014 mb Cloud Cover : 100% Visibility : 10 km Precipitation : 0 mm (60% chance of rain)

3. What is the 10-day weather forecast for Nagano from 04:30 PM 18 August 2026?

From 04:30 PM 18 August 2026, Nagano's 10-day forecast shows this trend: Today (Aug. 18) : Temp. 28°C, Hum. 69% and Patchy rain nearby condition. Wednesday (Aug. 19) : Temp. 29°C, Hum. 61% and Overcast condition. Thursday (Aug. 20) : Temp. 29°C, Hum. 67% and Patchy rain nearby condition. Friday (Aug. 21) : Temp. 29°C, Hum. 64% and Patchy rain nearby condition. Saturday (Aug. 22) : Temp. 28°C, Hum. 73% and Patchy rain nearby condition. Sunday (Aug. 23) : Temp. 25°C, Hum. 78% and Rain Shower condition. Monday (Aug. 24) : Temp. 25°C, Hum. 84% and Rain Shower condition. Tuesday (Aug. 25) : Temp. 29°C, Hum. 71% and Overcast condition. Wednesday (Aug. 26) : Temp. 27°C, Hum. 69% and Rain Showers condition. Thursday (Aug. 27) : Temp. 27°C, Hum. 70% and Rain Showers condition.

4. Will it rain in Nagano today?

As of 04:30 PM 18 August 2026, there is a 12% chance of rainfall in Nagano later today around 2026-08-18 17:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Nagano in August 2026?

August 2026 in Nagano is forecast to have 4 sunny days, 15 rainy days, 5 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 11°C to highs of 38°C.

6. How does the weather in Nagano affect air quality?

Weather directly impacts air quality in Nagano. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.