Use of lunar calendar to foresee future events is a part of astrology, and astrology is a sin against Will of God.
There is research branch of biology called "selenobiology" which investigates influence of moon on human physical and mental abilities also known as lunar effect.
Here is a list of several works for example:
- Neumann D. Tidal and lunar rhythms//Biological rhythms Handbook of behavioral neurobiology//Ed. J. Aschoff.-New York, 1981 indexed in US National Library of Medicine
- Tasso I., Miller E. The effects of the full moon on human behavior//J. Psv- chol- 1976.
- Sievers A., Hensel W. Graviperception in plants.- London: Pitman, 1985.
- Lieber A. L. The Lunar effect. Biological tides and human emotions.- New York: Anchor Press, 1978.
While a scientific method used here is completely different than esoteric astrology, still in result there may be found a lot of common things.
Also, Wikipedia article states "lunar effect is frequently called a pseudoscientific theory" and that "some academics claim this persistent belief, with respect to humans, has no basis in fact".
What is a position of Church regarding "lunar effect" theory?
