Weather is probably a major factor when you plan your trip to Alegrete, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and February, with an average temperature of 25°C, while the coldest months are July and June, with an average of 15°C. The rainiest months in Alegrete are October, November, January and December, with each month seeing an average of 193 mm of rainfall.