Planning for the weather is an important factor for making your trip to Puerto Bolívar a success, especially when you're splurging. The hottest months are usually March and February, with an average temperature of 25°C, while the coldest months are August and September, with an average of 23°C. The rainiest months in Puerto Bolívar are March, February, April and January, with each month seeing an average of 260 mm of rainfall.