What is the primary difference between a scientific theory and a scientific law? A scientific law is an assumed truth which forms the basis of your theory. Scientific laws are universal and describe observed events.
Average temperature in St Lucia in March: 22 to 28Â°C, 72 to 84Â°F. Sea temperature in St Lucia in March: 26Â°C, 79Â°F. Average rainfall in March: 97mm, 3.8in. Events: St Luciaâs annual festival of comedy kicks off in March with events and shows throughout the month.
St Petersburg: Annual Weather Averages. July is the hottest month in St Petersburg with an average temperature of 18Â°C (64Â°F) and the coldest is January at -6Â°C (22Â°F) with the most daily sunshine hours at 9 in July. The wettest month is October with an average of 100mm of rain. The best month to swim in the sea is in July when the average sea temperature is 19Â°C (66Â°F).