Good question and there’s no simple answer. All solar ovens depend on the Sun’s UV. The higher the UV the higher the oven temperature will increase. A 7 UV day will heat higher than a 5UV day. A 9 UV day will heat higher than a 7 UV day. The temperature can range from mid-200 to mid-300 on most typical summer days depending on how much and the type of food being cooked.

Using the Electrical system the two internal thermostats are preset at low of 250 and high of 300 degrees F.