Today Eastern suburbs of Mumbai witnessed it's first 40C temp of yr 2020!
Some max temp in °C below with humidity for some available location :
Chembur & Navi Mumbai (Vashi) 41
IIT Powai 41 with 28%
Bhandup & Mulund 41.2
Belapur & Turbhe 41.4
Mumbra 42 with 12%
Thane 42.2 with 14%
Bhiwandi 42.4 with 18%
Manor 42.5 with 16%
Badlapur 42.6 with 20%
Shahapur & Wada 43.6
Kalwa & Padgha 43.8
Talasari & Kasara 44
Karjat & Khopoli 44.4
So typically interior N.Konkan belt in western part of state near western ghats base heats up before, then the eastern part Vidarbha belt of Maharashtra takes the charge of hot bed.
Data Courtesy: IMD, Mahavedh,BMC,TMC AWS & PWS
While Coastal N.Kokan witnessed slightly above normal temp were most of the IMD official stations are present so as per them no heatwave warning was given.
Some max temp in °C below:
Mumbai SCZ 35.2
Interior Maharashtra is also Hot !
Aurangabad saw max of 40.3 C & was 40+ for 2nd consecutive day!
Nashik saw 40.1 C & was 40+ for 2nd consecutive day!
Pune saw 39.1 & Pashan 39.6°C