The best time to visit Haldia is right after the monsoons and before the winters set in.
Summers can get very hot with temperatures touching 38 degrees. Furthermore, Haldia is always humid.
Monsoons are mild to severe and are a good time to visit owing to the scenic beauty. Bad weather in the Bay of Bengal can cause severe wind speeds.
Winters are pleasant and enjoyable with the lowest temperature reaching 14 degrees Celsius.