Solunar Theory
The scientific approach to predicting the best fishing and hunting times based on lunar positions, moon phases, and their effects on wildlife behavior.
What is Solunar Theory?
Solunar theory was developed by John Alden Knight in 1926 after analyzing over 200 fishing and hunting records. The theory suggests that fish and game are most active during specific times related to the moon's position relative to Earth.
The word "solunar" combines "sol" (sun) and "lunar" (moon), reflecting how both celestial bodies influence animal behavior through gravitational forces, light levels, and biological rhythms.
Solunar Periods
Major Periods (2 hours)
Occur when the moon is directly overhead or underfoot (opposite side of Earth). These periods typically produce the highest wildlife activity.
Duration: 1 hour before and 1 hour after moon transit
Minor Periods (1 hour)
Occur when the moon is rising or setting on the horizon. These periods show moderate increases in animal activity.
Duration: 30 minutes before and 30 minutes after moonrise/moonset
Moon Phase Effects
🌑 New Moon & 🌕 Full Moon
The strongest gravitational effects occur during new and full moons, making these the most productive times for fishing and hunting.
🌓 Quarter Moons
First and last quarter moons provide moderate conditions with decent activity levels during solunar periods.
🌒 Crescent Phases
Waxing and waning crescents typically show the lowest activity, though fish and game may still be active during major periods.
HuntFishSport Scoring System (0-100)
Our app calculates a daily solunar score from 0-100 based on multiple factors. Here's how the scoring works:
80-100
⭐⭐⭐⭐⭐
Excellent conditions
60-79
⭐⭐⭐⭐
Very good conditions
40-59
⭐⭐⭐
Good conditions
0-39
⭐⭐ or ⭐
Fair to poor conditions
Score Calculation Factors:
- Moon Phase (30 points): New and full moons score highest
- Moon Illumination (20 points): Based on visible moon percentage
- Major Periods (30 points): Moon overhead/underfoot intensity
- Minor Periods (20 points): Moonrise/moonset activity levels
Practical Tips for Success
🎣 Fishing Tips
- Start fishing 30 minutes before major periods begin
- Focus on deeper waters during bright moon phases
- Use darker lures during full moon nights
- Pay attention to weather - overcast can extend activity
- Don't ignore minor periods on high-score days
🦌 Hunting Tips
- Be in position 1 hour before major periods
- New moon phases often show increased daytime movement
- Combine solunar data with weather patterns
- Scout locations during poor solunar days
- Consider wind direction during high activity periods
Common Questions
How accurate is solunar theory?
Studies show 70-85% correlation between solunar periods and increased fish/game activity. Success depends on combining solunar data with local conditions, weather, and seasonal patterns.
Should I only fish/hunt during solunar periods?
No! Fish and game are active throughout the day. Solunar periods indicate peak activity times, but you can still be successful outside these windows, especially with good technique and location knowledge.
Does weather affect solunar predictions?
Weather is a major factor! Cold fronts, storms, and pressure changes can override solunar influences. Use solunar data as one tool alongside weather forecasts and local conditions.
Ready to Plan Your Next Adventure?
Use HuntFishSport's solunar calculator to find the best fishing and hunting times for your location.
Get personalized solunar forecasts, save your favorite locations, and track your success!