Weather is a filter, not a travel decision engine
A weather-based trip planner should eliminate bad options, not choose the destination by itself.
The actual decision depends on intent: rest, exploration, cost, social context, work constraints, risk tolerance, and timing. Weather is useful once the purpose is known.
This keeps the product honest: data can rank viable windows and places, but it should not pretend that a sunny forecast explains why someone wants to travel.
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