The sun is shining, it’s sandal weather and you’re booking long weekends at the cottage. So why is there a throbbing pain in your head? Unfortunately, many of us notice an increase in headaches this time of year as the temperature rises. But there are a variety of different factors that could be at play in your head pain, some of which might be preventable. Many migraine sufferers find that, as the weather changes, splitting migraines develop. Some of the main weather-related triggers include a rise in temperature, high humidity or storms. Meanwhile, those who suffer from cluster headaches, characterized by severe pain behind the eye, will find their condition also flares up when the weather gets warmer. Because of the seasonal change in these headaches, some patients are misdiagnosed as having sinus headaches due to allergy season, when the weather is really to blame. While doctors can never exactly pinpoint what triggers a particular headache at a particular time, heat is considered an important factor, because it can expand the blood vessels in your head. And even if heat isn’t directly a trigger for you, spending lots of time in the sweltering outdoors can lead to dehydration, which can induce headaches on its own. Though there isn’t much you can do about the weather, doctors say that those who know they are affected by the changes in climate should take extra precautions to avoid other triggers (such as certain foods) when they see problematic weather in the forecast. And there are a few other steps you can take to limit your risk. -Avoid being outside during the hottest times of the day if you know heat triggers your headaches. -Stay well hydrated and keep a bottle of water with you at all times. -Keep your bedroom at a comfortable temperature so you can sleep well. Sleep deprivation is another migraine trigger. -Wear sunglasses. The harsh glare of the sun can induce migraines in some people. Learn how to deal with your headaches naturally.