The best time to visit Santa Rosa is during the dry season, which typically runs from May to September.
During these months, you'll experience pleasant, warm weather with less humidity and a lower chance of rain, making it ideal for exploring the region's natural beauty and outdoor activities. This period offers comfortable conditions for hiking, visiting local farms, and enjoying the scenic landscapes around Santa Rosa.
For those planning to attend the annual "Festa da Rosa" (Rose Festival), which is a significant cultural event in Santa Rosa, it usually takes place in October.