We can't deny the rainy season is here.
What should you look after?
1) Are they feeling cold? They group/pile together to get heat from one another.
1watt per bird is the recommended for brooding them. Depending on the temperature, you may add more bulbs to keep them comfortable. Instead of using one 100watt bulb for 100 Sunshines, use 10 10watt bulbs or 4 25watt bulbs so the heat will be distributed well.
2) Are they getting wet?
Make sure their housing in not flooded. Elevate housing/flooring if you must. Change beddings often to keep them dry and clean.
3) Do they have fresh air? Is there a strong odor when you open their pens?
Most people make the mistake of enveloping the pen using sacks, curtains etc. The Sunshines need fresh air, even during rainy season. Remember that air comes from below and exits above. So make sure they have vents for the intake and exhaust of air. Do not suffocate them. Create wind breakers around the cages, but do not block off fresh air.
How you feel is how they feel also. Use your senses to guide you in looking after your Sunshines.