Other Locations Near to Puerto Plata. Cities and Towns: San Felipe De Puerto Plata, Dominican Republic. The 7 day weather forecast summary for Puerto Plata: Over the next 7 days the Puerto Plata forecast suggests the average daytime maximum temperature will be around 31Â°C, with a high for the week of 34Â°C expected on the morning of Wednesday 26th. The mean minimum temperature will be 21Â°C, dipping to its lowest on the evening of Tuesday 25th at 19Â°C.