Climate of Bihar, India
Area-weighted average across Bihar. For where people actually live and travel, see the cities below.
Bihar, a subdivision of India, has a Mediterranean-style climate on average. Area-weighted monthly temperatures across the whole territory range from 16.4°C / 61.5°F in January to 31.4°C / 88.5°F in May, with rainfall from 2 mm / 0.1 in to 309 mm / 12.2 in depending on the season (1161 mm / 45.7 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 16.4°C61.5°F | 18 mm0.7″ | Sunny & Mild |
| February | 19.2°C66.6°F | 8 mm0.3″ | Sunny & Mild |
| March | 24.6°C76.3°F | 11 mm0.4″ | Sunny & Warm |
| April | 29.5°C85.1°F | 14 mm0.6″ | Sunny & Hot |
| May | 31.4°C88.5°F | 42 mm1.7″ | — |
| June | 30.9°C87.6°F | 180 mm7.1″ | Tropical |
| July | 29.1°C84.4°F | 309 mm12.2″ | Tropical |
| August | 28.9°C84°F | 295 mm11.6″ | Tropical |
| September | 28.4°C83.1°F | 210 mm8.3″ | Tropical |
| October | 26.5°C79.7°F | 66 mm2.6″ | — |
| November | 21.7°C71.1°F | 6 mm0.2″ | Sunny & Warm, Sunny & Mild |
| December | 17.6°C63.7°F | 2 mm0.1″ | Sunny & Mild |
Frequently asked questions
What is the best time to visit Bihar?
The best months to visit Bihar, India for sunny, dry weather are January, February, March, April, November, December. The warmest month is May at an area-wide average of 31.4°C / 88.5°F, and the driest is December with about 2 mm / 0.1 in of rainfall.
What is the climate of Bihar?
Bihar, India has area-weighted monthly average temperatures ranging from 16.4°C / 61.5°F in January to 31.4°C / 88.5°F in May. Annual rainfall averages about 1161 mm / 45.7 in, with the wettest month being July (309 mm / 12.2 in) and the driest December (2 mm / 0.1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Bihar?
The hottest month in Bihar is May, with an area-wide average temperature of 31.4°C / 88.5°F.
What is the coldest month in Bihar?
The coldest month in Bihar is January, with an area-wide average temperature of 16.4°C / 61.5°F.
When does it rain most in Bihar?
The wettest month in Bihar is July, averaging about 309 mm / 12.2 in of rainfall. The driest is December with about 2 mm / 0.1 in.