While going out, male or female wear Jean's aeven during summer which I have observed. But may be they will avoid tight fitted Jean's and wear something that is easy to move on.
Knowledge is power.
Better to use a cap and cool glasses while going out in the afternoons when the temperatures are high. It is better to use an umbrella if a cap is not available. It is better to remain inside during the peak hours that is 12 noon to 4 PM. Take as much water as possible so that you will not get dehydrated. Coconut water is also a good option. soft drinks or cold water is not recommended. Water from earthen pots is good. Very thin buttermilk with salt is also very good for summer.
Cotton clothes and light coloured clothes are recommended for summer. Synthetic dresses are not good as they can't absorb the water. Little loose dresses are better than very tight dresses.
Thoughts exchanged is knowledge gained.