Paris COP21: Cooling A Hot City | Page 5

TYPICAL : PARIS Radiant Heat Map 2003 HEAT WAVE: PARIS Radiant Heat Map O C Temperature in Paris is usually below 25 C. O Although Cities are bit warmer compared to its surroundings O 45 43 41 38 36 36 34 34 32 32 27 * SOURCE : National Climatic Data Centre Database O O 38 29 AUGUST 2006 C Temperature in Paris rose above 40 C. Houses (usually of stone, concrete, or brick construction) 45 do not warm too much during the daytime and radiate minimal heat at night, and air conditioning is usually un- 43 necessary. During the heat wave, temperatures remained at record 41 highs even at night, preventing the usual cooling cycle. 25 12 AM 12 AM 6 PM 6 PM 12 AM 12 AM 5 AM 5 AM 12 AM Jun Jul Temperature over time Aug (UTCI : Orly Airport) 12 AM 29 27 Jun Jul Temperature over time Aug (UTCI : Orly Airport) 25 AUGUST 9th, 2003 * SOURCE : National Climatic Data Centre Database