Among the phenological phenomena of migratory birds is migration, which is repeated every year. Birds come to our regions from their summering grounds in the spring, and during the summer they are grouping together for their return to their summering grounds.The aim of this work was to determine the influence of climatic conditions on spring arrivals, clustering in flocks and autumn departure for the area of the central Slovakia. The observed species of migratory birds were the white stork (Ciconia ciconia), the barn swallow (Hirundo rustica) and the house martin (Delichon urbica). Based on SHMÚ data from monitored years 2016 and 2017, we obtained data about the air temperatures and rainfall sums over a given period and compared them with the long-term average. From this source, we also drew bird migratory observations that were not the same in these two years. We compared the weather variations with the long-term average between 1951 - 1980. It turned out that when a higher rainfall or extremely high air temperature was observed in a given year, the both spring arrivals and less noticeable the autumn departures changed. On the basis of the processed results, it can be stated that the observed migratory birds were not hurry to leave when the weather was favorable.