Boca del cielo: are you wondering about the weather you might find during your holiday? Befor organizing a holiday we always think about the wheather we might find when we get there. In Boca del cielo the average yearly temperature is 29°C. During the hottest month, which in this case is April, the temperature can get up to 31°C. Instead the coldest month is September, reaching a minimum temperature of 28°C.