Kerala weather today: Rain brings relief but IMD warns of 40°C heatwave across state

Light to moderate rain showers brought much-needed relief to residents of idukki and Ernakulam on Sunday evening, easing the intense summer heat. The rainfall, accompanied by cool and windy conditions, provided a temporary break from rising temperatures across the state.
However, the India Meteorological Department (IMD) has cautioned that this relief may be short-lived, as both rain and heat alerts remain in place for multiple districts in Kerala.
Thunderstorm alert: Gusty winds & rainfall expected
According to IMD, thunderstorms with light to moderate rainfall and gusty winds reaching up to 40 kmph are likely over isolated areas in: Idukki, Ernakulam and Wayanad.
This alert is valid for the next few hours, with residents advised to stay cautious of sudden weather changes.
Rain forecast till April 23: District-wise alert
IMD has issued a Green Alert (light to moderate rainfall) for most districts across Kerala over the coming days:
April 19–21 (Widespread Rainfall)
Rain is expected across all districts:
Thiruvananthapuram, Kollam, Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur, Palakkad, Malappuram, Kozhikode, Wayanad, Kannur, Kasaragod
April 22–23 (Limited Districts)
Rain chances continue in southern and central districts such as:
Thiruvananthapuram, Kollam, Pathanamthitta, Alappuzha, Kottayam, Ernakulam and Idukki
Heatwave warning: Temperatures up to 40°C
Despite the rainfall, IMD has also issued a Yellow Alert for high temperatures across Kerala:
Up to 40°C in Palakkad
Around 39°C in Kollam
Around 38°C in Kottayam
Around 37°C in several districts including Ernakulam, Thrissur, Kozhikode and others
Around 36°C in Thiruvananthapuram
Temperatures are expected to remain 3–4°C above normal, with hot and humid conditions persisting, especially in non-hilly regions on April 19 and 20.
Evening showers and gusty winds can temporarily cool down temperatures but daytime conditions will continue to feel uncomfortable due to humidity.