Water temperature ranges from 26 to 30 degrees Celsius (79 to 86 Fahrenheit) and visibility is 15 to 35 meters. Greater or lesser visibility occurs, but is exceptional.
Currents are quite common around Bunaken are generally mild but can sometimes be strong. Because of the complex geography in combination with very deep water (over 2 kilometers), it is very difficult to predict them. When we suspect strong currents, we probably don’t dive there and look for another spot. Beginners do not have to be afraid as there are also dive sites that have as good as no current. As a standard rule, we always dive with the current. The boat follows on the surface so you don’t have to swim back to it.
Diving is possible year round. The waters around Manado are usually calm and waves rarely exceed a meter. However, in the period, roughly December-February, when the west-wind blows, there can be days that the boat does not go out due to a high swell. If that is the case, we simply wait until the conditions clear up, (usually a few days). If it looks really desperate we can decide to dive the Lembeh strait, on the other side of the North Sulawesi peninsula. But in all the years we have been operating, this never happened.
Having said all this, we are sometimes closed a few weeks in the months December to March. We need a period to do proper maintenance on man and material so why not when the weather can be potential bad any ways..
For the exact dates of when we are closed, please contact us at: firstname.lastname@example.org
Some dive equipment considerations.
Due to the relatively high water temperature, a 3 m.m. shorty is usually enough. If you get chilled easily or are sensitive to stinging hydroids, a full suit would be a better bet. Since all our dives are multilevel dives, it is almost impossible to dive without a computer. Dive tables work of course, but will limit or shorten your dive significantly. We very strongly advise you to bring one or rent your own computer.