Climate of District

Climate:-

Basti’s climate is more equable than that of the adjoining districts to the south. The year may be divided into four seasons. Winter, from mid-November to February, is followed by summer, which lasts until approximately the middle of June.  The period from mid-June to the end of September is the southwes t monsoon  season,  and october to mid-November is the post-monsoon or transition period.

Cloudiness:-

During the monsoon season, and for brief spells of a day or two in winter, heavily clouded or overcast skies prevail. During the rest of the year the skies are mostly clear or lightly clouded.

Rainfall:-

The average annual rainfall of the district is 1166 mm.

Temperature:-

During the winter season the mean minimum temperature is about 9°C and the mean maximum temperature 23°C. During the summer, the mean minimum is about 25°C and the mean maximum about 44°C.

Humidity:-

In the southwest monsoon and post-monsoon seasons the relative humidity is above 70%. Thereafter the humidity decreases, and in the summer the air is very dry.

Winds:-

The winds are in general very light, with a slight increase during the late summer and monsoon seasons. The average annual wind speed ranges from 2.0 to 7.1 km/h.