tempreature is increasing when waiting in traffic

[riddaq]

my temperature reading is always normal but lately i have started noticing a very slight increase in it which happens when i am stuck in traffic or waiting at the signal. do i need to be concerned about this?

[orfaan]

Very slight increase of 5% - 10% rise when stuck in traffic at noon is normal. More than that get alarmed.

Just to be on safe side get the radiator cleaning and check the AC fan is working on both speed?