The best time to go to Grants Pass is during the late spring, summer, and early autumn months, from May through October, when the weather is warm and sunny, great for enjoying the outdoors.During these months, the Rogue River is ideal for rafting, fishing, and jet boat excursions, which are popular activities in the area. The average temperatures range from a pleasant 20°C (68°F) in May and October to a warm 30°C (86°F) in July and August, with very little rainfall. This period also coincides with many local events and farmers' markets, adding to the experience.For those planning to explore the region's wineries, the late summer and early autumn (August to October) are particularly good. The grape harvest season brings a pleasant atmosphere to the vineyards, and the mild weather is excellent for wine tasting tours. The changing autumn colours in October also add to the scenic beauty.If your primary interest is water activities on the Rogue River, July and August offer the warmest water temperatures and the most consistent conditions for swimming, rafting, and boating.