Bihar Weather by Month: Temperature & Rainfall Guide

In January the weather in Bihar is generally excellent. January is a winter month. In Patna you can expect warm maximum average daytime temperatures around 24°C (75°F) and nighttime temperatures around 11°C (52°F). On average, this month is the coldest month of the year in Bihar.

Find more detailed climate information for Bihar in January here.

In February the weather in Bihar is generally excellent. February is a winter month. In Patna you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 14°C (57°F).

Find more detailed climate information for Bihar in February here.

In March the weather in Bihar ranges from good in Bodh Gaya to very good in Patna. In Patna you can expect very warm maximum average daytime temperatures around 34°C (93°F) and nighttime temperatures around 20°C (68°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in March here.

In April the weather in Bihar is generally mixed. April is a summer month. The average maximum daytime temperatures are extremely high and range from 38°C (100°F) in Bhāgalpur to 40°C (104°F) in Gaya. These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in April here.

In May the weather in Bihar ranges from less favorable in Patna to mixed in Bodh Gaya. May is a summer month. The average maximum daytime temperatures are extremely high and range from 38°C (100°F) in Bhāgalpur to 41°C (106°F) in Gaya. On average, this month is one of the warmest months of the year in Bihar. So be prepared and make sure to dress lightly.

Find more detailed climate information for Bihar in May here.

In June the weather in Bihar is generally less favorable. June is a summer month. The average maximum daytime temperatures are extremely high and range from 36°C (97°F) in Bhāgalpur to 39°C (102°F) in Gaya. These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in June here.

In July the weather in Bihar is generally less favorable. In Patna you can expect very warm maximum average daytime temperatures around 34°C (93°F) and nighttime temperatures around 28°C (82°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in July here.

In August the weather in Bihar is generally less favorable. In Patna you can expect very warm maximum average daytime temperatures around 34°C (93°F) and nighttime temperatures around 27°C (81°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in August here.

In September the weather in Bihar ranges from less favorable in Patna to mixed in Bodh Gaya. In Patna you can expect very warm maximum average daytime temperatures around 34°C (93°F) and nighttime temperatures around 27°C (81°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in September here.

In October the weather in Bihar is generally very good. In Patna you can expect very warm maximum average daytime temperatures around 33°C (91°F) and nighttime temperatures around 23°C (73°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in October here.

In November the weather in Bihar is generally excellent. In Patna you can expect very warm maximum average daytime temperatures around 30°C (86°F) and nighttime temperatures around 17°C (63°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Bihar in November here.

In December the weather in Bihar is generally excellent. December is a winter month. In Patna you can expect warm maximum average daytime temperatures around 26°C (79°F) and nighttime temperatures around 13°C (55°F).

Find more detailed climate information for Bihar in December here.