Various climate oscillations are present on our planet, each of them inffluencing the climate in certain parts of the globe, or even across the entire planet. In this paper, four of those oscillations were chosen for analysis. Those are the Arctic Oscillation (AO), North Atlantic Oscillation (NAO), Pacific North American Oscillation (PNA) and El Niño Southern Oscillation (ENSO). As it will be seen, the Arctic oscillation has the strongest signal present in the Adriatic associated with the strongest temperature change. The NAO and PNA signals are also present in this region, however their inffluence is limited and their presence is not felt that strongly as is the case with AO. The connection between the climate oscillation indices was also analyzed. The results show that they may not have a direct inffluence over the temperature levels, but a more indirect one, having an effect on the behaviour of other more inffluentional oscillations. Similar conclusion was obtained for ENSO. Even though it is the strongest oscillation on the planet its effects are limited mostly by its long distance from the Adriatic sea. However it will be shown that ENSO may not have an effect on the Adriatic directly, but will have an effect on other oscillations that can create a difference in the Adriatic sea. How these oscillations affect the sea surface temperature (SST) and air temperature at sea level (TAS) is shown in detail in Chapter 4. of this paper.