You wear this when it's cold outside.
a sweater
You wear these on your feet when it's rainy.
boots
You wear this to keep your neck warm.
a scarf
You use this when it's rainy or sunny.
an umbrella
You wear these to protect your hands when it's cold.
gloves
You wear this on your head when it's sunny.
a cap
You wear these to protect your eyes from the sun.
sunglasses