Colorado Solunar Calendar — August 2026

The August 2026 solunar calendar for Colorado covers every day of the month, with the major and minor deer movement windows, moon phase, and a fused 0–100 hunt score computed for the state's geographic center (39.06°N, 105.31°W, Mountain Time). The month moves through the Waning Gibbous, Last Quarter, Waning Crescent, New Moon, Waxing Crescent, First Quarter, Waxing Gibbous and Full Moon phases, and the table below shows when each window opens and closes for that location. Whitetail rut peak in Colorado is mid-November (mule deer; whitetail similar), so the days closest to that window are the ones to flag early. Archery is open late August – late September, firearm mid-October – mid-November (four seasons) for hunters in the field. Rocky Mountains cover is high-country aspen and dark timber, sage flats, and prairie river drainages, which shifts the value of a strong major window — wind in big timber moves scent differently than wind across open ag, and the solunar overlay is most useful when read against that terrain context.