The best time to go to Sonoyta, Sonora, Mexico, is during the cooler, drier months of October through April.
During these months, the daytime temperatures are pleasant, typically ranging from the 60s to high 80s Fahrenheit, making it comfortable for exploring the town or traveling onward to nearby attractions like Puerto Peñasco. The humidity is low, and there's very little rainfall, ensuring clear skies for your travels. This period avoids the intense heat of summer and the sporadic, heavy rains of the monsoon season.
Travelers looking for a comfortable journey will appreciate these months. The mild weather allows for stress-free travel, whether you're passing through or staying a night.