Big Bend has lots to offer at different times of the year. The winters will vary, but temps can be as high as the 70's. They can also be as low as the teens (unusual). This is a desert environment and every day is different. Spring is always a beautiful time to visit, but there can be a lot of people visiting the area attractions in the Spring. The summer monsoons come around mid to late July and can really help cool things off in the summer. The storms are amazing to watch from the Javelina Hideout valley. They aren't guaranteed, but you're most likely to see them in July or August. The desert can turn a lush green if the monsoons come to visit. The hottest part of the year is May and June. This is earlier than most parts of the US, but this is when Big Bend heats up the most. If you're planning a trip in May to beat the heat - you've missed it. You'd be better served moving that to late July or after. July is generally cooler than May, especially if the monsoons arrive. The storms are beautiful to watch and cool the air significantly. If you have a late arrival in the summer months, please be aware that the solar system can only run the air conditioner when the sun is shining brightly and will typically shut off between 5-6pm to save the batteries for the refrigerator and house lights. For this reason, we recommend coordinating with the property managers to arrange for the AC to be turned on in the afternoon to cool the house down for your arrival. Obviously, we can't guarantee what the weather will be like at any time of the year, but we can tell you what we've experienced. Do your homework and plan your stay wisely.