Live Weather & Forecast
Weather in Omachi
Nagano, Japan · Real-time conditions & 3-day outlook
10°C
Feels like 11°C
50°F / Feels 51°F
Light rain
Omachi, Nagano
🌙 Nighttime
Updated: 2026-04-15 20:00
Humidity
98%
Wind
3.6 km/h NNE
Wind Gust
3.7 km/h
Pressure
1013 mb
Visibility
9 km
UV Index
0
(Low)
Precipitation
0.87 mm
Cloud Cover
100%
Dew Point
9.9°C
Wind Degree
24°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (3)
CO
247.9 μg/m³
NO₂
6.4 μg/m³
O₃
96 μg/m³
SO₂
8 μg/m³
PM 2.5
24.5 μg/m³
PM 10
29.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Omachi, Nagano
12 AM
10°
Patchy light drizzle
1 AM
10°
Patchy light drizzle
2 AM
11°
Patchy rain nearby
3 AM
10°
Patchy rain nearby
4 AM
10°
Patchy rain nearby
5 AM
10°
Patchy rain nearby
6 AM
11°
Patchy rain nearby
7 AM
12°
Patchy rain nearby
8 AM
13°
Patchy rain nearby
9 AM
14°
Light rain shower
10 AM
14°
Patchy light drizzle
11 AM
14°
Light rain shower
12 PM
13°
Light rain
1 PM
12°
Light rain
2 PM
11°
Light rain shower
3 PM
11°
Light rain shower
4 PM
11°
Light drizzle
5 PM
11°
Light drizzle
6 PM
11°
Light rain
7 PM
10°
Light rain
8 PM
10°
Light rain
9 PM
10°
Light drizzle
10 PM
10°
Light rain
11 PM
10°
Light rain
3-Day Forecast
Daily overview for Omachi, Nagano
Today
Moderate rain
14°
/
10°
🌧️ 99% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 14.98 mm
☀️ UV Index: 0.3
🌅 Sunrise: 05:16 AM
🌇 Sunset: 06:22 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
16°
/
3°
🌧️ 95% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 9.7 km/h
🌧️ Total precip: 0.52 mm
☀️ UV Index: 1.9
🌅 Sunrise: 05:14 AM
🌇 Sunset: 06:23 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Cloudy
18°
/
2°
🌧️ 0% chance of rain
💧 Avg. humidity: 49%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0.05 mm
☀️ UV Index: 1.9
🌅 Sunrise: 05:13 AM
🌇 Sunset: 06:24 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Omachi
Plan your trip to Omachi, Japan around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Omachi?
Current conditions in Omachi: Light rain, temperature 10°C, humidity 98%.
What is the best time to visit Omachi?
The best time to visit Omachi is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Omachi?
Omachi is located at approximately 36.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Omachi?
The wettest period in Omachi is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Omachi?
For visits to Omachi during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Omachi in 2026?
View the 2026 public holidays for Omachi on our Holidays page.
What are the GPS coordinates used for the weather forecast in Omachi?
The weather forecast for Omachi uses coordinates 36.5029, 137.8509.