Thanks to its coastline on two different bodies of water, you can dive in Colombia during any month of the year. However, if you want to see hammerhead sharks at Malpelo, January to May is the best time to travel. Overall, ocean visibility varies from 15-30 meters/50-100 feet, depending on your dive site and current conditions. The average water temperature is 28° C / 82° F, and the average air temperature ranges from 27°C / 81°F to 20°C / 68°F.