Live Weather & Forecast
Weather in Siwan
Bihar, India · Real-time conditions & 3-day outlook
40°C
Feels like 40°C
104°F / Feels 104°F
Sunny
Siwan, Bihar
🌞 Daytime
Updated: 2026-04-12 14:30
Humidity
11%
Wind
29.9 km/h WNW
Wind Gust
34.4 km/h
Pressure
1001 mb
Visibility
10 km
UV Index
4.9
(Moderate)
Precipitation
0 mm
Cloud Cover
3%
Dew Point
3.7°C
Wind Degree
301°
Air Quality Index
US EPA: Moderate
UK DEFRA: Moderate (4)
CO
286.9 μg/m³
NO₂
5.8 μg/m³
O₃
130 μg/m³
SO₂
11.6 μg/m³
PM 2.5
40 μg/m³
PM 10
104.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Siwan, Bihar
12 AM
26°
Clear
1 AM
26°
Clear
2 AM
25°
Clear
3 AM
25°
Clear
4 AM
24°
Clear
5 AM
24°
Clear
6 AM
25°
Sunny
7 AM
28°
Sunny
8 AM
31°
Sunny
9 AM
34°
Sunny
10 AM
36°
Sunny
11 AM
38°
Sunny
12 PM
39°
Sunny
1 PM
40°
Sunny
2 PM
40°
Sunny
3 PM
40°
Sunny
4 PM
39°
Sunny
5 PM
38°
Sunny
6 PM
34°
Clear
7 PM
33°
Clear
8 PM
32°
Clear
9 PM
31°
Clear
10 PM
30°
Clear
11 PM
29°
Clear
3-Day Forecast
Daily overview for Siwan, Bihar
Today
Sunny
40°
/
24°
🌧️ 0% chance of rain
💧 Avg. humidity: 18%
💨 Max wind: 30.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.2
🌅 Sunrise: 05:33 AM
🌇 Sunset: 06:14 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Sunny
40°
/
25°
🌧️ 0% chance of rain
💧 Avg. humidity: 13%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.3
🌅 Sunrise: 05:32 AM
🌇 Sunset: 06:15 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
42°
/
25°
🌧️ 0% chance of rain
💧 Avg. humidity: 10%
💨 Max wind: 27.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.4
🌅 Sunrise: 05:31 AM
🌇 Sunset: 06:15 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Siwan
Plan your trip to Siwan, India 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
People also ask — answers optimized for search engines and voice queries.
What is the current weather in Siwan?
Current conditions in Siwan: Sunny, temperature 40°C, humidity 11%.
What is the best time to visit Siwan?
The best time to visit Siwan is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Siwan?
Siwan is located at approximately 26.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Siwan?
The wettest period in Siwan is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Siwan?
For visits to Siwan during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Siwan in 2026?
View the 2026 public holidays for Siwan on our Holidays page.
What are the GPS coordinates used for the weather forecast in Siwan?
The weather forecast for Siwan uses coordinates 26.2632, 84.3225.