Kolkata Weather Update — The city is set to endure another round of high humidity and intermittent rainfall as the monsoon cycle intensifies over eastern India. According to forecasts from the India Meteorological Department (IMD), the coming days will bring unstable weather marked by overcast skies, persistent moisture, and multiple spells of moderate to heavy rain.
Weather Outlook: Hot, Sticky, and Wet
Meteorologists indicate that Kolkata has already experienced above-normal rainfall for July, with current precipitation levels registering nearly 50% above average. The surplus is attributed to recurring low-pressure systems forming over the Bay of Bengal—an active trigger for rainfall across the Gangetic plains and South Bengal.
In addition to rainfall, residents can expect extreme humidity levels, with relative humidity often exceeding 90% during peak afternoon hours. These sticky conditions not only make daily life uncomfortable but also raise health concerns for vulnerable groups such as the elderly, children, and outdoor laborers.
“While the rainfall is a seasonal norm, the high heat index is pushing conditions into dangerous territory,” said a senior official at the Alipore Meteorological Office.
Upcoming Rain Triggers and Pressure Systems
Weather experts forecast the formation of a sixth low-pressure system over the Bay of Bengal by midweek. This development is expected to trigger widespread rainfall across Kolkata and adjoining districts starting Thursday.
This system will likely enhance southwesterly winds, drawing in additional moisture and fueling cloudbursts, urban flooding, and traffic disruptions in low-lying areas.
Urban Impact: Drainage Strain and Traffic Disruptions
As witnessed during the last week’s intense downpours, several parts of the city — including Behala, Tollygunge, Park Circus, and EM Bypass — have faced repeated waterlogging. The Kolkata Municipal Corporation (KMC) has assured that water-pumping systems are on high alert, but residents remain wary of the city’s ageing drainage infrastructure.
Taxi and auto drivers report reduced operating hours due to road conditions. The KMC is also coordinating with the state disaster management team to be on standby for emergency response in case of flash floods or prolonged rainfall.
Health Advisory Amid Rising Heat Index
The IMD has issued a general health caution advising citizens to:
- Stay indoors during high UV index hours (12 PM to 3 PM)
- Drink plenty of fluids to avoid dehydration
- Avoid strenuous outdoor activity unless necessary
- Ensure proper sanitation to prevent water-borne diseases like diarrhea, dengue, and leptospirosis
Doctors at major hospitals including SSKM and Belle Vue Clinic have noted a spike in fever and vector-borne infections over the past two weeks, consistent with the rainy season’s impact.
Climate Background and Seasonal Trends
Kolkata falls within the tropical wet-and-dry climate zone. The southwest monsoon, which typically arrives in June and withdraws by late September, contributes nearly 80% of the city’s annual rainfall.
Recent years have shown a trend of heavier, more erratic rainfall, likely linked to climate change and warming sea-surface temperatures in the Bay of Bengal. These phenomena intensify cloud formation and increase the potential for localized flooding.
Daily Forecast Snapshot (Next 5 Days)
| Date | Forecast | Temperature (Max/Min) | Rain Probability |
|---|---|---|---|
| July 23 | Cloudy with light showers | 34°C / 27°C | 60% |
| July 24 | Intermittent rain, humid | 32°C / 26°C | 80% |
| July 25 | Moderate rain, cloudy | 30°C / 25°C | 90% |
| July 26 | Thunderstorms likely | 31°C / 26°C | 70% |
| July 27 | Partly cloudy, showers | 32°C / 26°C | 60% |
(Source: India Meteorological Department, Regional Centre Kolkata)
Civic Preparations and Emergency Measures
The Kolkata Police and KMC are working in tandem to manage waterlogged zones and traffic congestion during rainfall hours. Metro Rail authorities have also issued a preparedness bulletin, confirming that services will run as scheduled with added personnel in case of track flooding.
Additionally, Kolkata’s disaster helpline (1077) and the urban flood control cell are active and receiving real-time reports through the city’s “Safai Mitra” mobile app and municipal hotline.
Kolkata Weather Update: Useful External Resources
- IMD Regional Forecast (Kolkata)
- KMC Weather Updates & Alerts
- Kolkata Traffic Police Advisory
- India Meteorological Department – All India Forecasts
Also read: Home | Channel 6 Network – Latest News, Breaking Updates: Politics, Business, Tech & More
