Scuba Diving at St Nikolas

Diving atSt Nikolas (Greece)

Navigating the waters of St Nikolas demands a certain attentiveness, rewarding divers who appreciate varied underwater topography rather than solely relying on vast open-water expanses. This site, with its inviting reef structures and intriguing cave, encourages careful observation. Divers here find opportunities to hone buoyancy control and refine their search for smaller marine life. It's an area that asks you to slow down, absorbing the details of its vibrant, albeit compact, underwater world.

Tonight's objective overview for St Nikolas shows an air temperature of 27°C. The measured surface conditions include wave heights around 0 m. This environmental data is logged for the close of the day.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth35m / 115ft
Entry Typeshore
Water Typesalt
Dive Types
Reef

Dive Site Overview

Agios Nikolas Reef, situated near the Naxos coast, offers a readily accessible dive site that feels surprisingly vibrant given its proximity to shore. Divers typically explore to a maximum depth of 15 m (49 ft), allowing for extended bottom times of around 45 minutes, ideal for recreational divers.

Visibility at the reef often extends clearly, reaching up to 20 meters, providing good views of the dynamic marine environment. A key feature is a beautiful, small cave adorned with various types of sponges, adding an element of exploration to the dive. The site's generally tranquil weather conditions mean it's frequently diveable, making it a reliable option for local operators and visitors.

Entering from shore, the gentle slope leads divers directly into a lively ecosystem where encounters with local inhabitants are common. This reef serves as an engaging introduction to Greek diving, blending easy access with rewarding underwater discoveries.

St Nikolas

Conditions are Excellent

10/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.

Best Dive Window

07:00 - 14:00

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
27° / 25°
Wave Height
0.0 m
Wind Speed
10 km/h NW
Rain Chance
0%

Current conditions near St Nikolas show 27° air, 25° sea temperature, 0.0 m waves, and 10 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 10, 2026, 19:06 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning a dive at St Nikolas can be enjoyable throughout much of the year, although specific seasons offer distinct advantages. The climate data indicates consistently excellent dive scores from January to December. However, for the most comfortable surface intervals and warmer conditions, the period from May through October stands out, with air temperatures ranging from 19-28°C (66-82°F). During these months, wave heights typically measure less than 0.1 meters, and rainfall is minimal, often less than 1 mm, creating calm surface conditions. Conversely, while diving remains excellent in cooler months like January, air temperatures drop to around 11°C (52°F), and wind speeds can be higher, averaging 19 km/h (12 mph). Water temperatures at Agios Nikolas Reef average 22°C (72°F); although specific monthly water temperatures aren't consistently reported, they likely align with seasonal air temperature trends, being warmest during late summer. Visiting outside peak summer can offer a quieter experience with fewer crowds.

PEAK SEASON SCORE

95/100
Excellent

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JUN
JUL
AUG
DIVE SCORE
(0–100)
83
JAN
84
FEB
87
MAR
89
APR
91
MAY
96
JUN
95
JUL
94
AUG
93
SEP
94
OCT
89
NOV
85
DEC
AIR TEMP (°C)
11
12
13
16
19
25
28
28
24
20
17
13
WAVES (M)
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
WIND (KM/H)
19
17
16
17
17
16
18
19
18
14
17
16
RAIN (MM)
2.4
2.2
1.3
1.6
1.0
0.5
0.1
0.2
4.1
0.6
1.3
3.3
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Dive Experience & Conditions

Diving at St Nikolas feels remarkably comfortable, largely due to the site's average water temperature of 22°C (72°F) and typically clear visibility, often reaching 20 meters. Descending into the water, divers often experience calm conditions. Gentle currents allow for relaxed exploration of the reef structure and the small, colorful cave. While the primary reef's maximum depth is around 15 meters, allowing for ample bottom time, the varying topography provides plenty to engage with across different sections. Shore entry makes access straightforward. This dive offers a sensory journey through a vibrant reef ecosystem, providing consistent enjoyment for a range of certification levels.

Dive Difficulty & Safety Guidelines

Ensuring a safe dive at St Nikolas begins with adherence to standard recreational diving practices and local guidelines. Although specific hazards are not consistently reported for this site, prudent divers always prioritize buddy system protocols and vigilant air monitoring. Due to recent health considerations, dive operators have implemented enhanced disinfection measures for rental equipment, including regulators, snorkels, masks, and BCD oral inflators, using solutions like 10% bleach or quaternary ammonium compounds. While this site is suitable for various experience levels, considering a PADI Advanced Open Water Diver course can enhance confidence in deeper sections should you explore nearby dive sites. Always consult with local dive professionals regarding current conditions and site specifics before entering the water; conditions can shift.

Recommended Equipment

Deep dive hazard. Increased narcosis and gas consumption risk.

  • Dive Computer
  • DSMB
  • Primary & Backup Lights
  • Hard-soled Dive Boots

This gear list is based on verified equipment signals for St Nikolas, Greece. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

Temperatures look set to gradually increase over the next several days. A warming trend is expected over the next few days.

Many experienced divers would consider 3mm wetsuit an appropriate choice here.

Current dive conditions indicate that water temperatures around St Nikolas are sitting at roughly 25°C (76°F). Surface air temperatures are resting at 27°C (80°F).

St Nikolas conditions last reviewed: 19:06 local time (UTC+2), Jun 10, 2026

Due to technical issues with our weather providers, data hasn't been fetched for over 48 hours. The data above reflects the conditions at the time of the last successful fetch.

Emergency & Medical Support

Essential information to help you plan your dive trip to St Nikolas.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN Europe.

+39 0642115685
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Closest Listed Hyperbaric Chambers

Showing listed hyperbaric chamber facilities within 200 km of this dive site. Distances are approximate straight-line distances and may not reflect emergency travel time.

+

YKIA

Athens, GreeceApprox. 108 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Metropolitan Hospital
Emergency Phone
12:00 - 20:00
24/7 Emergency Contact
24/7 Listed
No

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET

KYI

Athens, GreeceApprox. 110 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Not listed
Emergency Phone
11:00 - 20:00
24/7 Emergency Contact
24/7 Listed
No

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET

Hyperbaric Medicine Dpt

N. Faliro, GreeceApprox. 111 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Metropolitan Hospital
Emergency Phone
10:00 - 18:00
24/7 Emergency Contact
24/7 Listed
No

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET
Chamber data is sourced from self-reported EUBS/OXYNET listings and has not been independently verified by Dive Navigator. Always contact local emergency services, DAN, your dive operator, or the facility directly before travelling.
View all in Greece

Marine Life at St Nikolas

Exploring the underwater landscape of Agios Nikolas Reef reveals a surprising array of life, especially considering its coastal proximity. Encountering octopuses camouflaged among the rocks or watching groupers move through their territories is a common sight. Schools of fish frequently dart across the reef, adding dynamic movement to the scene. Occasionally, divers might spot sting rays resting on the sandy bottom. The small cave is a particular focal point, hosting various types of colorful sponges that cling to its walls, providing a rich habitat for smaller organisms.

Image contributors:Wrtiii3644 at English Wikipedia
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Dive Centers Near St Nikolas

Skiathos Diving Center
43 km away

Skiathos Diving Center

4.9| 306 reviews
Today: 08:00 - 20:00
Sun08:00 - 20:00
Mon08:00 - 20:00
Tue08:00 - 20:00
Wed08:00 - 20:00
Thu08:00 - 20:00
Fri08:00 - 20:00
Sat08:00 - 20:00
Ocean Blue Scuba Diving School

Ocean Blue Scuba Diving School

5| 146 reviews
48.9 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

Nea Anchialos National AirportVOL
49 km
Skiathos Island National AirportJSI
51 km
Athens Eleftherios Venizelos International AirportATH
125 km
💵Currency:EUR

Search Flights

Check available flights and routes on Expedia, using the nearby airports listed in this section.

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Frequently Asked Questions

What is the maximum depth at St Nikolas?

Agios Nikolas Reef's primary dive area in Naxos typically reaches a maximum depth of 15 m (49 ft). Such depths are accessible and enjoyable for recreational certified divers.

What is the typical water temperature?

Average water temperature at Agios Nikolas Reef is reported at 22°C (72°F). While this can fluctuate seasonally, it generally offers comfortable diving conditions.

Is St Nikolas suitable for beginners?

Yes, with a maximum depth around 15 meters and calm conditions, St Nikolas is suitable for Scuba Diver certified individuals and those with limited prior dive experience. Shore entry further simplifies access.

What marine life can I expect to see?

Divers frequently observe octopuses, groupers, eels, and schools of fish. Occasional sightings of sting rays also occur. The small cave is home to various types of colorful sponges.

Are there any special features to explore?

A notable feature is a small, colorful cave located on the reef. It's adorned with various types of sponges, providing an interesting exploration point during your dive.

How clear is the water usually?

Visibility at St Nikolas often extends to good ranges, sometimes reaching 20 meters. This excellent clarity allows for clear views of the reef, marine life, and the underwater cave.

What are the common entry and exit points?

St Nikolas is primarily a shore entry dive site. This convenient access makes it straightforward to enter and exit the water directly from the beach.

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