Seasons in West Bengal | WBCS Preparation: All Subjects - WBCS (West Bengal) PDF Download

The climatic variations in West Bengal are influenced by its topography and geographical location. The state experiences six varieties of soil, including the fertile new alluvial soil. The Northern region, influenced by the Eastern Himalayas, maintains a cool climate throughout the year, while the Southern part enjoys a moderate climate due to the proximity to the sea. Overall, West Bengal exhibits a tropical monsoon climate, with distinct seasons.

Seasons in West Bengal 


Hot Weather/Summer Season

  • The entire state receives vertical rays of the sun, leading to heating of the landmass.
  • Temperatures range from 35°C to 45°C.
  • May is the hottest month.
  • The Western part records higher temperatures than the Eastern part.
  • Nights experience a cool southerly breeze carrying moisture from the Bay of Bengal.
  • Thunderstorms, known as Nor-westers or Kal Baisakhi, occur, benefiting crops like paddy and jute.

 

South-West Monsoon/Rainy Season 

  • The intense heat in Northern India creates a low-pressure system, attracting South-West monsoon winds.
  • From around June 10-15, West Bengal experiences heavy rainfall until September.
  • The Bay of Bengal branch of the South-West monsoon contributes to 90% of the state's rainfall.
  • Regions near the Himalayan foothills, coastal areas, and delta plains receive the highest rainfall.

Autumn/Retreat Monsoon Season 

  • South-West monsoon winds start retreating towards the sea after September.
  • The retreat, completed by the end of November, results in tropical cyclones affecting the South and South-Western parts of the state.

Cold Weather Season 

  • The state is partly influenced by North-East trade winds during winter.
  • Offshore winds with no moisture lead to dry conditions.
  • Average temperatures range from 7°C to 26°C.
  • The Western plateau areas experience colder temperatures, but not as severe as the mountainous districts in the North.
  • The Darjeeling Himalayan hill region may experience harsh winters with occasional snowfall.

Spring Season 

  • Spring is a short season with pleasant weather.
  • Temperatures range from 20°C to 30°C.
  • No rainfall during this season.
  • Occasional light showers may occur due to Western disturbances in North India.
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FAQs on Seasons in West Bengal - WBCS Preparation: All Subjects - WBCS (West Bengal)

1. What are the different seasons in West Bengal?
Ans. West Bengal experiences four main seasons - summer, monsoon, autumn, and winter.
2. When does the summer season occur in West Bengal?
Ans. The summer season in West Bengal generally starts in April and lasts till June. During this time, the weather is hot and humid.
3. What is the duration of the monsoon season in West Bengal?
Ans. The monsoon season in West Bengal usually begins in June and continues till September. It is characterized by heavy rainfall and often brings relief from the scorching heat of summer.
4. When does the autumn season occur in West Bengal?
Ans. The autumn season in West Bengal typically occurs in October and November. It is a transitional period between the monsoon and winter seasons. The weather during this time is pleasant with mild temperatures.
5. What is the duration of the winter season in West Bengal?
Ans. The winter season in West Bengal generally starts in December and lasts till February. The weather during this time is cool and dry, with temperatures dropping significantly, especially in the northern parts of the state.
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