As anglers we always seem to have an obsession with the weather, but no other single factor has more of an effect on our fishing. I know many anglers who also believe the moon phase plays a major part; I am not sure, but I have had some great fishing around the new moon period and struggled around the full moon. I don't let the phase of the moon stop me fishing, but I do take notice of the weather, and if it's wrong I will call off a fishing trip. The biggest single factor for me is definitely high air pressure, fishing can be at its worst during periods of continued high pressure, therefore for best results I try to avoid high pressure. Give me a low pressure south westerly blow and plenty of rain and it's time to run to the river.