Background: Dentists are often faced with a large fluctuation in patient’s inflow to the clinic due to seasonality. This unpredictability of seasonal variation has high impact on revenue. High seasons bring in significantly more revenue than low seasons; dentists may find that certain months have few new patients and more empty chairs. There has been no study documented to find seasonal variation in patient’s inflow to dental clinic. Purpose of this study was to crack the code of relationship between seasonal variation and patients visit to clinic. Materials and method: cross-sectional study was performed for a period of one year in five major cities. Selection of dental clinic was done by probability sampling and one clinic was from all five cities were selected. Result: Study shows monsoon in India is not fruitful for dental practitioners as it attracts fewer numbers of patients to the clinic following summer season. Conclusion: Dental practices can encounter difficulties keeping the doors open if they do not learn to manage changes in seasonality. Study revealed that there was an obvious decline in no patients flow in months of July to September.