| Region | Rainy Season Length | Typical Months | Why? | | :--- | :--- | :--- | :--- | | | 4 months | June – September | Onset of Arabian Sea branch; stops abruptly after retreat. | | Northwest (Delhi, Jaipur) | 2–3 months | July – September | Weak monsoon; rain only during active western disturbances. | | Northeast (Meghalaya) | 7–8 months | April – October | Pre-monsoon "Mango showers" + strong SW Monsoon + retreating NE Monsoon. | | Tamil Nadu (Chennai) | 2 distinct seasons | Oct – Dec (NE Monsoon) + June–Sep (weak SW) | Lies in rain shadow of Western Ghats during summer; gets 60% rain from winter cyclones. | | Himalayan Foothills | 5 months | June – October | Orographic lift; delayed retreat due to mountains. |
7/10 7-8 months. Starts April ("mango showers"), peaks June-July, ends Nov. duration of rainy season in india
"How long is rainy season in India? Trick question." | Region | Rainy Season Length | Typical Months | Why
"But in Mawsynram, the wettest place on Earth? 8 months . From April to November. That's 240 days of rain per year." | | Northeast (Meghalaya) | 7–8 months |
Northwest (Jaisalmer) ☀️ Duration: 50 days (July–Aug) Rain: <10 cm The desert waits all year for 2 weeks of clouds.
Northeast (Mawsynram) 🌧️ Duration: 210 days (April–Oct) Rain: 1,100+ cm Rain almost every single day for 7 months.
"So next time someone says 'Indian rainy season' – ask them which state ."