It is obvious that when you go on vacation the weather is important. But when you think about sailing, weather is a basic indicator determining how and where to plan a cruise. Since the weather will rule your vacation, it is worth getting information about the forecast from reliable and proven sources.
I am starting to monitor the weather in a given area just a few days before heading for the sea. I do it regularly day by day, because it will allow me to assess how the change will take place once I leave. What will be the dynamics and direction of changes. Will I be heading towards the front of change or running away from it?
I pay attention to both current weather information and a several-day forecast and I observe day by day how these two information correlate and to what extent in a given situation I can trust the forecast and what is its uncertainty. In addition to temperature, direction and wind strength, atmospheric pressure is an important parameter. You should especially watch the moving baric centers (i.e. areas with different pressure), because when you notice that there is a chance of their abrasion on your cruise route, you have to assume that it may mean the appearance of violent weather phenomena, from violent gusts and storm areas , after unloading and storms. In any case, we plan to shelter in the port for this day.
Being on a cruise I use several sources of information on a regular basis, and thanks to the internet, the analysis is easy and even pleasant. I never plan a cruise route once a whole week, just in daily portions I adjust the route on a regular basis, sometimes they search for the wind or following it. In addition, it gives me a lot of satisfaction when I can boast of many miles under sails and a full fuel tank during the weak winds ;-).
In addition to the internet, weather information can be found in every port. We are looking for information boards, often located near toilets and the captain's office.