Kolkata Weather & Climate Guide: Seasons and Local Phenomena

Kolkata, the capital of West Bengal, experiences a tropical savanna climate (Köppen Aw) characterized by dramatic seasonal shifts and high humidity levels. Its proximity to the Bay of Bengal and location within the Ganges-Brahmaputra delta significantly influence its year-round weather.

Seasonal Trends

Winter (December to February)

Winter is widely considered the most pleasant season in Kolkata. During this period, the city enjoys dry, sunny days and cool nights.

• Temperature: Daytime highs average around 25°C to 27°C (77°F to 81°F), while nighttime temperatures typically drop to between 12°C and 15°C (54°F to 59°F).
• Atmosphere: The air is relatively dry with low humidity, and early morning mists are a common sight, often creating a atmospheric haze over the Hooghly River.

Summer & Pre-Monsoon (March to May)

The transition into summer is rapid. By April, the city experiences intense heat and escalating humidity.

• Temperature: Daily highs often exceed 35°C (95°F), sometimes reaching up to 40°C (104°F) or more during heatwaves in May.
• Feeling: High humidity creates a