From Writers in the Storm:
Where we choose to set our stories is an important decision. It can inform everything that happens in the story, from plot points and character development to pacing and mood. For this reason, I like to treat my locations as I would the characters in my stories.
Just like people, locations can have certain traits that bring out their personalities and influence the way our characters interact with them. Each location we choose has its own unique set of physical characteristics as well as a general feeling or mood that it gives off.
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Character Traits of Locations
Setting type is the physical location where your story takes place. It can be a real location or a fantasy world. Maybe it’s all happening in your main character’s head, like a dream. Every location has its own personality. Even dream worlds have characteristics that impact the narrative and are often reflective of the person dreaming.
Another example might be an urban setting as opposed to rural. Both have their own obvious characteristics, such as population density, that sets them apart, but there are similarities as well. A big city might have a small-town feel, whereas a small town could be laid out to exude more of a big city attitude. The architecture and street layouts also lend character to a particular location. Narrow avenues with old-world cottages might add warmth and feel like an old friend, whereas tall glass-shrouded buildings and a maze of traffic clogged streets could feel cold, inducing stress and anxiety.
The physical terrain of a story’s location can have a major influence on how the characters interact with it and with each other. If a character is familiar with the terrain, they may see it as an ally working to give them an advantage over an opponent. On the other hand, it may be a hindrance, throwing obstacles in the protagonist’s path. Sometimes the terrain itself is the antagonist and the thing that must be overcome to reach a satisfying ending.
Climate and Weather
Climate and weather may sound like the same thing, but they are different animals. Climate is the long-term average of the atmospheric behavior of a particular place, whereas weather is more isolated—it’s what’s happening right now. I like to think of climate as a location’s overall personality and weather as its current mood.
Most writers use weather almost instinctually. We all know how a raging storm, or a gentle rain can set a mood, but there are so many other things we can accomplish if we anthropomorphize things a little. Fighting an angry wind or beating back the cruel rays of the Sun breathe life into weather and set it up as an opponent that must be vanquished if our hero is to succeed. Weather can also be fickle and turn on a dime, lashing out like a scorned lover or throwing a tantrum like a three-year-old child who doesn’t want to take a nap.
Climate is a little trickier and requires more thought. The long-term nature of climate is what dictates things like flora, fauna, and seasons. It also sets expectations in the same way a parent might explain what to expect to a child before entering a museum or attending a funeral. Of course, we all know expectations and reality don’t always line up. It’s in that gap where the best stories are born.
Just like terrain, climate and weather can become the main antagonist. Look at Jack London, for example. In many of his stories the main character is fighting with the physical world rather than another person.
Link to the rest at Writers in the Storm