Felix Wang

If I understand correctly, you claim that local events are a determining element in choosing a destination, to the point that they should guide our research.
My nuance is the following: they are an important factor, certainly, but not always the main or most stable.
Events can transform a stay, but their impact is often conditional on the traveler's motivations.
For example, for a traveler seeking tranquility in Avignon, the festival could be a disadvantage, regardless of its scale.
The importance of events depends on specific motivations and not on a general rule.

If I understand correctly, you claim that humidity is the key factor of thermal comfort in travel, making high heat tolerable if the air is dry, but a nuance is necessary.
Indeed, the perception of thermal comfort is much more complex than just humidity, as many other contextual and individual factors influence this sensation.
Dry air at 40°C can be unbearable without shade or water access, regardless of humidity level, invalidating the generalization.
For example, an elderly traveler or someone unacclimated to heat will experience significant discomfort even in dry weather, unlike a young athlete well-hydrated.

Skip the cathedral: of course, local events can impact planning, but it is rarely the most important consideration for an average traveler.
More often, factors like weather or transport availability are aspects with lower energy costs for decision-making.
Changing an entire travel plan for an event, unless it is the primary goal, can be a waste of energy.
In the Netherlands, for example, unpredictable weather can disturb a trip much more than a festival, making the lightest plan often the best.