The temperature begins to rise with the start of March. The daytime temperature would average around 32 degrees Celsius, whereas, the nights would be around 20 degrees Celsius. If you are visiting Kochi in summers, then you can get huge discounts on your travel and stay expenses on account of it being an off-season for people traveling to Kerala.
However, the weather remains dry and humid in the summers making it inadvisable to explore the attractions of the city. Visiting Kochi in this season will require carrying a lot of sunscreen and cotton garments.