Madrid has cold weather up until Tuesday - https://www.accuweather.com/en/es/madrid/308526/march-weathe...

It’d be interesting to see if the warmer weather since Tuesday will reduce the number of new cases. If we assume a week between exposure to getting diagnosed, we would start seeing lowering rate of new infection starting from mid next week.

Spain is not hot at all this time of year.

They say it “reduces” the spread. There may be other factors which affect the situation in Spain. Also it’s not that hot now in most places there ;p

Weather in Spain in the en of february is cold most fo the times. March is a changeable weather, can have very cold weeks, some few days with 25C and very sunny. But cold also. May will be a hot month.