Diving Seasons on Bunaen island ,
Best time to come..
You can expect pleasant day temperatures between 20 to 33 degrees Celsius or 68 to 93 degrees Fahrenheit year-round. From November to January, the West monsoon can bring heavy showers, but usually days are sunny and the rains start during the afternoon and pass quickly.
Diving is possible all the year round. Bunaken and the Manado Bay are very sheltered, the sea is seldom rough. Visibility is generally over 20 m (up to 40 m). This is what happen normally in dry season between February to October.The wet season is from November to January has little influence on the visibility at Bunaken Islands whereas it may affect visibility more in Manado Bay. The diving is still possible to do. But the sea is often rough and sometimes danger for sailing. This is because of the west wind coming from the open sea of Manado bay. So best time to come in North Sulawesi for diving in Bunaken itself is from February to October. But people still like to come in this rainy season cause want to avoid the crowds in the dry season.
You might be carefull maybe during low season especially from November to January, often find a lot of trash in Bunaken island at the West part, Liang Beach, the main beach of Bunaken island. At the east part, might not influnce much for the trash and the beach is still ok.. This is because of the west wind blows so often. Mostly all trash is coming from Manado, mainland. During low season it is a good recommendation when you do diving in Bunaken and you stay in mainland - resorts. But during high season, the weather is often fine, and all divers are okey to stay on the island of Bunaken.