This title scrutinizes dynamical changes of several hydrometeoroligal parameters in relation with notorious ‘global warming’ process, these changes in Latvian coastal areas within last centuries, namely, water temperature changes in Riga Bay (1963-2011), average air temperature changes in Riga and vicinity (1795-2011), as well as seawater level changes in Ventspils and Daugava river basin (1873- 1968). The analysis of data reveals some trends and findings: 1) Air temperature and water temperature fluctuations and trends in Riga bay are mutually correlated, so, statistical data on changes of air temperature might be used for overall hydrometeorological analysis. 2) last centuries dynamic of the air temperature fluctuations is being expressed as the cyclic process, however, there is not considerable major temperature growth monitored. 3) The average tempo of water level growth in the area is considerably less than as compared with the records from last Glacial Era’s final phase. The global warming process is being continuing after the end of last Glacial Era up to now, and there is no solid ground for assumption, that this process has been facilitated nowadays.