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Solunar Theory

This is part 4 of a series of articles on the theories of the different factors which produce good and bad fishing conditions. The theories aren't necessarily mine, although I've attempted to provide a thoughtful summary of information I have researched, with some modification based on personal experience.

I'm not entirely convinced that you should solely base your decision on whether to go fishing, on the measurement of the positive or negative factors based on theory. Although a number of the positive factors may indicate that the fishing will be good at your regular spot, I think to a large degree that the negative factors mean that you have to find and catch the fish in a different fashion than you would normally.

Solunar Theory

Solunar theory is one of the more interesting factors affecting fishing to consider. Solunar is short for SOlar LUNAR. Solunar theory essentially postulates that the position of the moon and sun effect fishing success. Many of the articles on solunar theory seem to be reprints of the same material, this article is intended to try and simplify the most relevant aspects of the theory in simple to understand language.

Daily Peak Times.

The theory is that when the moon is directly overhead, and directly underneath you (the other side of the world), there will be peak feeding periods. In addition, there are two periods of the day when the fishing is also good. Those are moon rise, and moon set.

If you have been watching the moon, you can predict yourself to some degree of accuracy when the peak times are going to be. But if you haven't been observing the moon or would like to predict in advance the peak periods, you need to know where you are in longitude/latitude, or the name of the nearest city. You can then look up the times in the tables provided free of charge by the U.S. Naval Observatory.

Monthly Peak Day

When the moon and sun are in the same sky, the gravitational pull of each works together, and causes the biggest overall solunar effect. The next best period is when the sun and moon are completely opposite each other. When they are in the same sky, you have a "new" moon, caused because the sun is behind the moon. The sun and moon being in opposite skies, results in a full moon.

Yearly Peak Month

In June, the solunar effect is the highest. During New Moon, both sun and moon travel the sky together, and during the full moon, the sun and moon travel completely opposite each other.

Ok, Now It's Getting Stupid Out There!

We know that dawn and dusk are also prime fishing times, and I particularly favour dawn. So when you have dawn and dusk hit at the same time that the moon is directly overhead or underfoot - ya, BINGO! And if it's a new moon overhead at dawn in June, why wouldn't you be fishing!

It Can't Be That Simple

You're right, it's not that simple. Weather, wind, sun, rain and lots of other factors also come into consideration and need to be kept in mind. Other articles in this serious attempt to line these factors up for you.

If in doubt?

Go fishing.

By David Girdwood
Manager, Thefishingnut

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