Last 7 days
Today
34° / 27° High / Low (°C)
95% Humidity
88% Rain probability
Thunderstorm + hail Condition
~5h Rain duration
What this means
In Kolkata on 21 Jun 2026, rain is expected: 88% chance, up to 7.1 mm forecast (source: Open-Meteo).
A thunderstorm is expected today for around 5 hours — 88% probability, up to 7.1mm 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.
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