The San Juan is a Year Round Fishery

The fish are plentiful and can always be caught on this river in any weather, on any day of the year. The water temperature at the dam stays nearly constant year-round at 40-42 degrees. This helps to produce a constant insect hatch for the fish to feed on. There is estimated to be an average of 100,000 insects per square meter in the river. So anytime is a good time to fish the San Juan River.

During the spring, from April thru June, the flows can be high from runoff releases. Fishing access can be almost impossible unless you fish from a drift boat. Monitor the flows closely during the spring.

The summer months can get very hot and dry.  There are daily hatches with lots of fish activity. The crowds can be very large so its a good idea to use a guide on a float trip in order to get away from the crowds of waders.

Fall is the most beautiful time with great weather and fishing and the crowds start to die out during the middle of the week. 

Winter, the crowds are smaller except for holiday weekends.  Most folks don't enjoy fishing during the harsh winter climate.  No need to start your morning too early or you'll probably be breaking the ice off of your rod guides.

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