The best time to visit Dutch John is during the warmer months, specifically from late spring to early autumn (May to September), when the weather is most favourable for outdoor activities.During these months, the temperatures are pleasant, typically ranging from 15°C to 25°C, making it ideal for fishing, boating, and hiking. The days are longer, providing ample daylight for exploring the Flaming Gorge National Recreation Area and its stunning landscapes. This period also sees all local businesses and recreational facilities operating at full capacity.For those keen on fly fishing, the peak season for trout fishing on the Green River is generally from June to October. The river conditions are usually stable, and the insect hatches are consistent, offering excellent opportunities for anglers.