The grueling heatwave conditions that have gripped Kerala over the past few weeks are finally set to ease. The India Meteorological Department (IMD) has issued a Yellow Alert for several districts, signaling the arrival of intense summer showers. As the state transitions from a period of record-breaking temperatures to a wet spell, residents are urged to take necessary precautions against lightning and localized heavy rainfall.
Yellow Alert Today: Which Districts are at Risk?
For today, Tuesday, May 5, 2026, the IMD has placed six districts under a Yellow Alert. These regions are expected to witness isolated heavy rainfall, ranging from 64.5 mm to 115.5 mm within a 24-hour period.
The districts under alert today include:
- Pathanamthitta
- Kottayam
- Idukki
- Malappuram
- Kozhikode
- Wayanad
The sudden shift in atmospheric conditions is a welcome change for the high-range and mid-land regions, where the water table had begun to deplete significantly due to the prolonged dry spell.
Extended Rainfall Forecast: May 6 to May 9
The IMD’s specialized weather models suggest that this is not just a passing shower. A trough in the lower levels of the atmosphere is likely to sustain rainfall activity across the state for the remainder of the week.
Wednesday, May 6, 2026
The rain belt is expected to shift slightly towards the central coast. Yellow alerts have been issued for:
- Ernakulam
- Thrissur
Thursday, May 7, 2026
The intensity remains steady in the southern and central hilly regions. Alerts are active for:
- Pathanamthitta, Kottayam, Idukki, and Ernakulam.
Friday, May 8, 2026
Coastal and northern districts will see increased activity:
- Alappuzha, Ernakulam, Thrissur, and Kozhikode.
Saturday, May 9, 2026
The week concludes with a focus on the southern districts:
- Thiruvananthapuram, Kollam, Pathanamthitta, Alappuzha, and Kottayam.
Impact on Temperatures and Agriculture
The “Mango Showers” or summer rains are crucial for Kerala’s agricultural economy. This rain provides vital hydration for spice plantations in Idukki and Wayanad, particularly for pepper and cardamom crops.
Furthermore, the maximum temperature, which had been hovering 3°C to 5°C above normal in districts like Palakkad and Thrissur, is expected to drop by a few degrees. This will provide significant relief from the “heat exhaustion” symptoms reported among the elderly and outdoor workers across the state.
Safety Guidelines During Summer Showers
While the rain is a relief, summer showers in Kerala are often accompanied by violent thunderstorms and lightning. The State Disaster Management Authority (KSDMA) has issued the following advisories:
- Avoid Open Spaces: If you hear thunder, move indoors immediately.
- Unplug Electronics: High-voltage surges during lightning can damage household appliances.
- Stay Away from Water Bodies: Avoid bathing in rivers or fishing during the alert periods.
- Tree Safety: Do not stand under tall trees or near electrical poles.
