The objective of this study was to investigate the concentration level and distribution of polycyclic aromatic hydrocarbons (PAHs) in seasonal surface water of the Suez Gulf, Egypt. The total PAH concentrations (sum of the concentrations of 16 individual PAH compounds) ranged from15.392 to 66.718 µg/L and 3.115 up to 252.786 µg /L for summer and winter seasons respectively. Lower concentrations of PAHs observed during summer, while higher concentrations during winter. The decreasing of concentrations in summer could be a result of accelerated degradation due to higher water temperature that also affects the rate by which PAHs are degraded by microorganisms or due to higher photo - oxidations additionally, previous studied has also suggested that seasonal variations in PAHs concentration could be also, attributed to hydro- logical and meteorological conditions. The concentrations in excess of 10 ug/L, suggesting that the water in this area was heavily contaminated by PAHs, such a wide range of PAHs at different concentrations indicates that there are potentially many different sources of PAHs in the area, possibly including combustion followed by oil residues, sewage outfalls, and industrial wastewater. From the distribution of PAHs in water alone, it is difficult to differentiate these different sources of input. The data can act as an indication of the potential impacts of such high levels of PAHs on the local ecosystems; hence continuous monitoring of the ecosystem is highly warranted.