May and early June are widely recognized as the "prime time" months along the Fall River, primarily due to the daily morning and evening hatches, coupled with abundant spinner falls. The river experiences its most substantial spinner fall during a robust Pale Morning Dun (PMD) hatch that initiates in the morning. The PMDs hatch, fall spent to the river, and gracefully drift downstream, creating ideal feeding opportunities for pods of rising trout throughout the midday period. This remarkable PMD spinner fall unfolds near the headwaters of the Fall, upstream of the Island Road Bridge. Witnessing numerous selective rainbow trout casting caution aside and rising simultaneously becomes a common spectacle during the peak of the intense PMD spinner fall

Springtime on the Fall River, in northern California, offers anglers a captivating experience as the season ushers in increased trout activity. The warming weather triggers various insect hatches, providing opportunities for both nymphing and dry fly fishing. With a focus on imitating prevalent hatches such as mayflies and caddisflies, fly anglers can test their skills in enticing selective trout. Whether you choose nymphs, dry flies, or streamers, the diverse techniques suited for spring conditions make the Fall River an ideal location for anglers seeking both a technical and rewarding fly fishing experience in one of the most beautiful settings in the world.

Late June and July stand out as peak months on Fall River, primarily attributed to the renowned Hexagenia mayfly hatch during dusk, drawing the largest fish to the river's surface each night. Savvy anglers strategically schedule their entire fishing season around the arrival of these impressive, bright yellow mayflies. Hexagenia, the largest mayfly species, becomes a coveted treat for trout within a brief window from mid-June to July, emerging at dusk for mating. Their nymphs, dwelling in the silty river bottom, undergo a transformative emergence each summer. Despite the heightened anticipation surrounding the Hex Hatch, there are equally rewarding midday mayfly hatches and caddis blankets that envelop the river every afternoon. Surprisingly, the most fruitful moments of the Hex hatch often involve casting emerging caddis patterns just before the grand appearance of the Mayflies. Additionally, every morning throughout the summer witnesses consistent spinner falls of the diminutive Attenella or tiny blue-winged olive mayflies. These insects hatch and mate during warm summer nights, descending to the river for waiting trout in the early to mid-morning. Our expert Fall River guides ensure you experience the river's productivity during optimal times, adjusting schedules to either fish early mornings and evenings for the Hex Hatch or engage in midday fishing, tailoring the experience to maximize your chances of success.

August and September herald the arrival of "trico time" on Fall River. During these months, these diminutive mayflies emerge most mornings, offering a couple of hours of exhilarating action as anglers cast tiny dry flies on even tinier tippets. This period provides some of the most challenging and rewarding spring creek fishing experiences available. Additionally, Callibaetis mayflies and small caddisflies make appearances at various times throughout late summer and early fall. While these months are sometimes considered the doldrums of the season, our guides have uncovered that August and September may well be two of the finest periods on Fall River. Although hatches may be less consistent, engaging in productive nymphing and swinging wet flies and streamers on intermediate lines becomes a successful alternative, and angling traffic tends to be light during this time.

October and November often go unnoticed by many anglers, yet these months boast exceptional hatches of diminutive Tricos and Baetis mayflies, along with the presence of larger Callibaetis mayflies. Despite the lack of attention, trout exhibit consistent feeding behavior, targeting various offerings such as dry flies, nymphs, and even slowly swung wet flies or streamers throughout a fishing day. Surprisingly, Fall River regulars tend to keep the fall season somewhat hush-hush, likely to preserve the relative secrecy of the outstanding fishing opportunities during this late period of the year.