Best Doctor for Neck Pain in Delhi – Understanding Monsoon-Related Discomfort Neck pain during rainy or damp weather is a common complaint. The primary reasons include: 1. Changes in Barometric Pressure During monsoon, the air pressure drops, which can cause tissues in the body to expand. This puts extra stress on muscles and joints, especially around the neck and shoulders, worsening stiffness and pain. 1. Increased Humidity and Cold Weather Moist and cool conditions reduce blood circulation in muscles. Poor circulation makes muscles less flexible and more prone to stiffness, leading to neck and back discomfort.