Live Weather & Forecast
Weather in Arai
Niigata, Japan · Real-time conditions & 3-day outlook
17°C
Feels like 17°C
63°F / Feels 63°F
Partly cloudy
Arai, Niigata
🌙 Nighttime
Updated: 2026-04-17 20:00
Humidity
83%
Wind
22.3 km/h S
Wind Gust
31.2 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
9.7°C
Wind Degree
183°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
282.9 μg/m³
NO₂
32.1 μg/m³
O₃
76 μg/m³
SO₂
14.2 μg/m³
PM 2.5
21.8 μg/m³
PM 10
28.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Arai, Niigata
12 AM
12°
Clear
1 AM
12°
Clear
2 AM
12°
Clear
3 AM
12°
Cloudy
4 AM
12°
Overcast
5 AM
12°
Clear
6 AM
13°
Sunny
7 AM
14°
Partly Cloudy
8 AM
15°
Overcast
9 AM
16°
Sunny
10 AM
17°
Sunny
11 AM
18°
Sunny
12 PM
19°
Sunny
1 PM
19°
Overcast
2 PM
19°
Overcast
3 PM
19°
Partly Cloudy
4 PM
19°
Partly Cloudy
5 PM
18°
Partly Cloudy
6 PM
17°
Partly Cloudy
7 PM
17°
Clear
8 PM
17°
Partly cloudy
9 PM
16°
Partly Cloudy
10 PM
16°
Partly Cloudy
11 PM
16°
Partly Cloudy
3-Day Forecast
Daily overview for Arai, Niigata
Today
Partly Cloudy
19°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 23.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 05:27 AM
🌇 Sunset: 06:34 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Partly Cloudy
20°
/
15°
🌧️ 0% chance of rain
💧 Avg. humidity: 63%
💨 Max wind: 18 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 05:26 AM
🌇 Sunset: 06:35 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Sunny
23°
/
14°
🌧️ 0% chance of rain
💧 Avg. humidity: 55%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 05:25 AM
🌇 Sunset: 06:35 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Best Time to Visit Arai
Plan your trip to Arai, 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 Arai?
Current conditions in Arai: Partly cloudy, temperature 17°C, humidity 83%.
What is the best time to visit Arai?
The best time to visit Arai is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Arai?
Arai is located at approximately 34.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Arai?
The wettest period in Arai is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Arai?
For visits to Arai during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Arai in 2026?
View the 2026 public holidays for Arai on our Holidays page.
What are the GPS coordinates used for the weather forecast in Arai?
The weather forecast for Arai uses coordinates 34.7578, 134.7936.