Last 7 days
Today
29° / 25° High / Low (°C)
97% Humidity
100% Rain probability
Thunderstorm + hail Condition
~22h Rain duration
What this means
In Kolkata on 24 Sep 2026, rain is expected: 100% chance, up to 28.5 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 22 hours — 100% probability, up to 28.5mm forecast. An umbrella is the right call.
Rain season
Monsoon June–September delivers around 80% of the city's 1,600mm annual rain, with July and August the most intense months. Pre-monsoon Kalbaisakhi (nor'westers) in April–May are violent convective storms that form rapidly in the afternoon — fast-moving and brief but often destructive. Humidity stays high June–October, making overcast days feel heavier than the rainfall totals suggest.
Elsewhere in India