IMD predicts heavy rain across 8 Kerala districts during Onam week, issuing yellow alerts from August 23 to 25.
Thiruvananthapuram: As Kerala enters the peak of Onam season, the India Meteorological Department (IMD) has issued a yellow alert across multiple districts for the next few days.
The weather bureau has predicted isolated heavy rainfall ranging from 64.5 mm to 115.5 mm within 24 hours.
| Date | Affected districts | Rain warning |
| August 23, 2026 (Sun) | Kozhikode, Wayanad, Kannur, Kasaragod | Yellow Alert (Heavy Rain) |
| August 24, 2026 (Mon) | Pathanamthitta, Kottayam, Idukki, Ernakulam, Thrissur | Yellow Alert (Heavy Rain) |
| August 25, 2026 (Tue) | Kottayam, Idukki, Ernakulam | Yellow Alert (Heavy Rain) |
Key weather updates and highlights
- High intensity: The IMD categorises “heavy rainfall” as 64.5 mm to 115.5 mm in a 24-hour window.
- Onam festive impact: With first Onam (Uthradam) falling on August 25 and Thiruvonam on August 26, the mid-state wet spell may impact outdoor celebrations, pookalam arrangements and festival shopping.
- Precautionary advice: Residents in hilly areas (especially Idukki, Wayanad and Thrissur) and low-lying coastal regions are advised to remain alert for sudden waterlogging and minor landslides.
Published: 21 Aug 2026, 02:52 pm IST
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