Explore 104 dive and snorkel sites across Semaphore. Water temperatures range from 7–31°C. Home to 12 marine species.
Loading map...
Monthly water temperatures, visibility conditions, and seasonal highlights
Water temperatures in Semaphore peak at 22°C in March and cool to 17°C in August. A 3-5mm wetsuit is recommended for most of the year, with a thicker suit in the cooler months.
Highest-rated sites in Semaphore
Notable species found across Semaphore
Everything you need to know about diving and snorkelling in Semaphore
Semaphore has 104 dive and snorkel sites listed on Fin, including 73 scuba diving sites and 39 snorkelling sites. Sites range in depth from 1–60m and cater to all skill levels from beginner to advanced.
Water temperatures in Semaphore range from 7–31°C throughout the year. Visibility typically ranges from 1–80m.
Underwater visibility in Semaphore typically ranges from 1–80m. Conditions vary by season and location — sheltered bays and deeper sites often offer the best clarity.
Semaphore is home to 12 marine species recorded across its dive sites. The region's waters support a diverse range of marine life including reef fish, invertebrates, and pelagic species. Check individual dive site pages for detailed species lists and seasonal sighting information.
Yes, Semaphore offers dive and snorkel sites for all experience levels. Many sites are rated for beginners with calm, shallow conditions. Use the skill level filter on Fin to find sites matched to your ability.
Browse all 104 dive and snorkel sites. Filter by skill level, depth, marine life, and more.
Open the MapGoby
Gobiidae spp.
16085 sites
