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Weather in Bihar for September 2025

Your guide to Bihar weather in September - trends and predictions
  • In general, the average temperature in Bihar at the beginning of September is 36.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 31.9 °C by the end of September.

  • Expect significant rainfall in Bihar during September, with an average of 19 rainy days.

  • Is September a good time to visit Bihar? check out the best time to travel to Bihar page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
34°/27°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Bihar in September average weather

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Temperatures trend during September in Bihar

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
36° /28° 0 mm 9
2 Sept. Partly cloudy
Partly cloudy
37° /28° 0.3 mm 9
3 Sept. Partly cloudy
Partly cloudy
38° /28° 0 mm 9
4 Sept. Patchy light rain with thunder
Patchy light rain with thunder
37° /28° 2.2 mm 9
5 Sept. Light rain shower
Light rain shower
36° /27° 11.5 mm 8
6 Sept. Patchy rain possible
Patchy rain possible
36° /27° 4.9 mm 8
7 Sept. Light rain shower
Light rain shower
36° /29° 4.2 mm 8
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
34° /28° 6.5 mm 8
9 Sept. Light rain shower
Light rain shower
35° /27° 3.5 mm 8
10 Sept. Light rain shower
Light rain shower
34° /27° 3.6 mm 7
11 Sept. Patchy rain possible
Patchy rain possible
35° /27° 1.9 mm 8
12 Sept. Partly cloudy
Partly cloudy
36° /28° 8.7 mm 8
13 Sept. Overcast
Overcast
35° /28° 1.4 mm 8
14 Sept. Thundery outbreaks possible
Thundery outbreaks possible
32° /26° 3.5 mm 7
15 Sept. Overcast
Overcast
30° /25° 8.8 mm 7
16 Sept. Light rain shower
Light rain shower
31° /25° 6.1 mm 7
17 Sept. Light rain shower
Light rain shower
34° /26° 2.1 mm 8
18 Sept. Patchy rain possible
Patchy rain possible
35° /27° 0.6 mm 9
19 Sept. Light drizzle
Light drizzle
35° /26° 0.5 mm 9
20 Sept. Light rain shower
Light rain shower
34° /26° 0.8 mm 8
21 Sept. Light rain shower
Light rain shower
33° /26° 3.1 mm 8
22 Sept. Light rain shower
Light rain shower
32° /25° 4.6 mm 8
23 Sept. Light rain shower
Light rain shower
33° /26° 1.5 mm 8
24 Sept. Patchy rain possible
Patchy rain possible
32° /26° 2 mm 7
25 Sept. Light rain shower
Light rain shower
33° /24° 4.4 mm 7
26 Sept. Light rain shower
Light rain shower
30° /24° 9.3 mm 7
27 Sept. Light rain shower
Light rain shower
29° /25° 32.6 mm 7
28 Sept. Partly cloudy
Partly cloudy
32° /25° 6 mm 8
29 Sept. Partly cloudy
Partly cloudy
33° /25° 2.8 mm 8
30 Sept. Patchy rain possible
Patchy rain possible
34° /27° 5.2 mm 8
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Important Notice
Our weather forecast for Bihar in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Bihar forecast closer to your planned date for the most up-to-date weather information.

Bihar in September - FAQ

What are the expected maximum and minimum temperatures in Bihar during September?
During September, expect a variety of temperatures with highs around 34° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bihar during September?
Significant rainfall exceeding 116.9 mm is expected in Bihar during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bihar during September?
The average wind speed in Bihar during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Bihar in September?

As you prepare for your trip to Bihar in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Bihar, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips
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Location coordinates Where is Bihar?

Get accurate weather forecasts for Bihar, located at latitude 25.594 and longitude 85.136. Stay updated with localized weather information tailored for Bihar.

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