In daily life, most patients with rheumatoid arthritis know that the weather will change whenever there is an increase in joint or pain, either by wind and rain or by a cold wave. At this point, the joints have become the “weather station” that issues “weather forecasts”. Whenever it rains or blows, the temperature drops, the pressure drops, and the humidity increases. Inflammatory joints have higher intracellular pressure than surrounding tissues, resulting in localized aggravation and localized swelling. Previous studies have shown that joint discomfort begins 1 day before the weather changes, with pain occurring in the joint areas, with the knee joints being the most affected, followed by the wrist and interphalangeal joints.