Taking the local weather in Montero into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually October and September, with an average temperature of 26°C, while the coldest months are July and June, with an average of 22°C. The rainiest months in Montero are December, January, February and November, with each month seeing an average of 237 mm of rainfall.