It’s a common belief in some cultures that getting a fever during rainy days is more likely or somehow worse. However, there isn’t solid scientific evidence to support this notion. Fevers can be caused by a variety of factors, including infections, immune responses, and environmental factors, but rainy weather itself isn’t typically a direct cause.
That said, rainy weather might influence certain behaviors or conditions that could indirectly lead to illness. For example, people might spend more time indoors where viruses can spread more easily, or damp conditions might foster the growth of mold or bacteria that could cause respiratory issues.
The best way to stay healthy during rainy weather, or any time, is to practice good hygiene, maintain a healthy lifestyle, and seek medical attention if you do develop a fever or other symptoms of illness. And, of course, keeping dry and warm during rainy days can help prevent catching a chill, which might make you more susceptible to illness.