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Understanding the relationship between tides, moon phases, and currents is essential for diving in Komodo. Operators use this knowledge to plan every dive, and knowing the basics helps you understand why certain sites are dived at specific times.
Komodo experiences semi-diurnal tides — two high tides and two low tides approximately every 24 hours. As the tide changes, water flows between the Indian Ocean and the Flores Sea through the park's channels and straits. The volume and speed of this water movement determines current strength at every dive site.
| Moon Phase | Tidal Range | Current Strength | Diving Implications |
|---|---|---|---|
| Full Moon | Maximum (spring tide) | Strongest currents | Advanced sites more challenging, some sites closed. Best macro life activity. |
| New Moon | Maximum (spring tide) | Strongest currents | Similar to full moon. Night diving excellent (darker water). |
| First Quarter | Minimum (neap tide) | Weakest currents | Calmest conditions, best for less experienced divers. Easier access to advanced sites. |
| Last Quarter | Minimum (neap tide) | Weakest currents | Calmest conditions, ideal for photography and relaxed diving. |
Between each tidal change, there is a brief period of minimal current called slack tide. This window typically lasts 30 to 90 minutes and is the ideal time to dive current-sensitive sites. Experienced guides time entries to catch the slack, allowing divers to explore the reef in calm conditions before the tide turns and the drift begins.
Planning tip: If you are an intermediate diver visiting Komodo for the first time, timing your trip around a quarter moon gives you the calmest possible conditions. If you are an experienced diver seeking maximum adrenaline, full moon and new moon weeks deliver Komodo at its most powerful.