Haldia has a typical moderate climate with winter temperatures ranging from a low of around 7 degrees Celsius to a high of 22 degrees Celsius. Winters are chilly and is when the residents hold the Haldia Utsav
Haldia Utsav
Haldia Utsav is an annual cultural festival in December or January in Haldia, West Bengal, India....

 festival. Summers can be very hot and humid. Usual summer temperatures in May, the hottest month range from a low of 24 degrees to highs around 42 degrees. Rainfall is heavy during monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

s, and the rainy months are between May and September.
Haldia is connected to Kolkata
Kolkata , formerly known as Calcutta, is the capital of the Indian state of West Bengal. Located on the east bank of the Hooghly River, it was the commercial capital of East India...

 by both bus and train.