A solunar calendar is one of the oldest tools in hunting. It predicts daily peaks in animal activity from the combined influence of the sun and the moon — sol and lunar. Used correctly it tells you which hours of the day deserve your attention. Used alone it will send you to the woods on days deer never leave their beds.
Major and minor periods explained
- Major periods — roughly two hours centered on lunar transit, when the moon is directly overhead or directly underfoot at your location. These are the strongest windows on the table.
- Minor periods — roughly one hour around moonrise and moonset. Shorter, and usually a lighter bump in movement.
Every 24-hour cycle contains two majors and two minors. The magic is not in the periods themselves — it is in which ones happen to land on top of legal shooting light.
Why a raw solunar table under-performs
Classic solunar tables were built for fishing and calculated from astronomy alone. They do not know a 25 mph wind is howling, that the barometer has been falling for eighteen hours, or that it is 78 degrees in early November. Those conditions flatten deer movement no matter what the moon is doing.
The practical rule: treat solunar timing as a tiebreaker, not a verdict. When two hunt windows look otherwise equal on weather and rut phase, take the one carrying a major period.
When solunar timing genuinely pays
Stacking is what matters. A major period that overlaps first or last light, in the preferred barometric range, behind a ten-degree temperature drop, during the seeking and chasing phase — that is the kind of hour that produces the sits hunters remember for years. Those overlaps are rare, which is exactly why they are worth being told about.
How Best Hunting Time handles solunar
Rather than printing a static table, Best Hunting Time computes lunar transit and illumination for your exact ZIP code, then scores it alongside pressure, wind, rain, temperature and rut phase. You get an hour-by-hour rating from Poor to Best plus a written reason for the call — so you know whether the moon actually mattered today, or whether the weather overrode it.