At our Northern Colorado Writers coffee yesterday this very issue came up. How do you stay motivated to write during the summer? Some ideas were thrown around like take your writing outside, spend more time reading, allow yourself some extra time to be outside...
Then someone said it shouldn't matter. It shouldn't matter what the weather is like or what time of year it is. If you are committed to your writing then you will stick with your routine and write. You will make the time to crank out those words and prioritize your writing.
It was hard to argue with that logic and no one did. The truth is, this is the advice given by many famous authors like Stephen King, John Grisham and Janet Evanovich; if you want to be a writer than you need to write every day.
So maybe what we need to do as writers is take the inscription that hangs in a New York City post office, "Neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed rounds" adapt it for us and hang it by our workspace. "Neither snow nor rain nor heat nor gloom of night stays these writer from the swift completion of their work in progress."
How much time do you devote to your writing and how do you stay committed to that time?