Scuba Diving at Kastos

Diving atKastos (Greece)

The waters surrounding Kastos, Greece, present varied conditions for divers throughout the year. Nestled in the Ionian Islands, this destination is characterized by generally calm seas during peak seasons, though local wind patterns can influence surface conditions. Planning dives here involves consideration of wave heights and occasional rainfall, particularly outside of the summer months.

Evening condition tracking at Kastos features an air temperature of 24.5°C. We have recorded wave heights measuring 0.6 m during this period. These figures outline the environmental parameters currently present.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth30m / 98ft
Entry Typeboat
Water Typesalt
Dive Types
Reef

Dive Site Overview

Dive sites near Kastos present a captivating blend of dramatic rock formations and expansive white sand seabeds, crafting visually striking underwater landscapes. Divers explore an environment where these contrasting elements converge, frequently revealing intriguing nooks and overhangs.

An underwater world here is dominated by natural structures; predominantly, these are reef dives, defined by their unique formations rather than artificial wrecks. Interaction between rugged stone and vast stretches of brilliant white sand creates a dynamic setting, where light plays across varied textures and provides excellent contrast. Within these formations, divers often discover sheltered ledges and crevices, which serve as habitat for local marine species.

Maximum recreational depth at these sites typically reaches 30 m (98 ft), offering ample opportunity to explore complex reef structures and their associated ecosystems. Consistent saltwater conditions prevail, and boat entry facilitates access to a broader array of dive spots around the island.

Accessing pristine, visually rewarding locations, often otherwise inaccessible from shore, is a key benefit of boat excursions. Such methods ensure thorough exploration of Kastos' diverse underwater topography, from shallower reef shelves to deeper, more intricate sections.

Kastos

Conditions are Excellent

9/10
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
24° / 24°
Wave Height
0.6 m
Wind Speed
27 km/h SSW
Rain Chance
0%

Current conditions near Kastos show 24° air, 24° sea temperature, 0.6 m waves, and 27 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 13, 2026, 21:04 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

For an optimal diving experience in Kastos, planning your visit between June and September is generally recommended. Air temperatures during these months are warm, ranging from an average of 26°C (79°F) in June to 28°C (82°F) in August, making surface intervals pleasant. Rainfall is minimal, with June averaging just 0.69 mm and August 0.63 mm, ensuring clear skies. Dive scores consistently rate as 'Excellent' for June, August, and September, reflecting favorable overall conditions. While other months also offer good diving, the summer season provides the warmest air and driest weather, alongside generally lower wave heights averaging around 0.4-0.6 m (1.3-2.0 ft), which contributes to calmer sea conditions for boat travel.

PEAK SEASON SCORE

92/100
Excellent

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


BEST MONTHS TO DIVE

JUN
AUG
SEP
DIVE SCORE
(0–100)
69
JAN
71
FEB
80
MAR
83
APR
87
MAY
94
JUN
90
JUL
92
AUG
91
SEP
87
OCT
69
NOV
78
DEC
AIR TEMP (°C)
11
11
13
16
20
26
29
28
24
20
16
12
WAVES (M)
0.8
0.8
0.6
0.6
0.5
0.4
0.6
0.5
0.5
0.6
0.8
0.6
WIND (KM/H)
18
17
16
16
16
14
18
17
16
14
17
13
RAIN (MM)
6.6
5.2
2.2
1.6
2.6
0.7
0.1
0.6
2.9
2.6
11.6
5.3
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

Accessing dive sites around Kastos typically involves boat entry, making excursions efficient for reaching the best spots within the maximum depth of 30 m (98 ft). While specific water temperature data isn't consistently reported, conditions can vary seasonally, impacting the thermal comfort during dives. Throughout the year, average wave heights typically range from 0.4 m (1.3 ft) during the summer to 0.8 m (2.6 ft) in winter, influencing surface chop and boat ride comfort. Visibility here often benefits from the white sand seabed, which can enhance light penetration. Divers will find the underwater terrain largely comprised of natural rock formations and sandy areas, characteristic of reef environments.

Dive Difficulty & Safety Guidelines

Prioritizing safety is paramount when exploring the waters of Kastos. Always adhere to standard safe diving practices, including staying within your certification limits and monitoring your no-decompression limits. Given that external data doesn't highlight specific unique hazards for this location, general dive safety protocols apply. Maintaining awareness of local boat traffic and potential currents, which can vary, is always advised. Before any dive, consult with local dive professionals who are familiar with the site and its present conditions. Their expertise provides crucial, up-to-date information on any localized changes or environmental factors.

Recommended Equipment

  • Dive Computer
  • DSMB

This gear list is based on verified equipment signals for Kastos, 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 3-5mm wetsuit an appropriate choice here.

At Kastos, the water is currently sitting around 24°C (75°F). Surface air temperatures are resting at 24°C (76°F).

Kastos conditions last reviewed: 21:04 local time (UTC+1), Jun 13, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to Kastos.

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.

Marine Life at Kastos

While specific sightings can vary, divers around Kastos may encounter larger pelagic species. Common sightings include sharks, whales, dolphins, and turtles, indicating a healthy and active marine ecosystem. These encounters are not guaranteed but represent the potential for exciting wildlife observations. Exploring the reef structures provides opportunities to observe a range of local fish species and invertebrates typical of the Ionian Sea, contributing to a diverse underwater experience.

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Nearest Airports

Nearest airports to help plan travel to this dive area.

Aktion National AirportPVK
41 km
Kefallinia AirportEFL
62 km
Patras Araxos Agamemnon AirportGPA
65 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 for diving in Kastos?

The maximum recreational depth reported for dive sites in Kastos is 30 meters (98 feet). This allows divers to explore a substantial portion of the underwater environment, including deeper reef sections.

What type of dive sites can I expect in Kastos?

Diving in Kastos primarily features reef environments. These sites are characterized by natural rock formations and expansive white sand seabeds, offering visually appealing underwater scenery.

What kind of marine life might I see?

Divers in Kastos have reported common sightings of sharks, whales, dolphins, and turtles. You can also expect to see various reef fish and invertebrates typical of the Mediterranean.

How do I access the dive sites around Kastos?

Access to the dive sites in Kastos is typically achieved via boat entry. This method allows for efficient travel to various spots around the island, optimizing the dive experience.

When is the best time of year to dive in Kastos?

The optimal time for diving in Kastos is generally from June to September. These months offer the warmest air temperatures, minimal rainfall, and calmer sea conditions, making for an excellent diving experience.

What are the typical water conditions?

Kastos experiences saltwater conditions. While specific water temperature data varies seasonally, visibility is generally good, often enhanced by the white sand seabeds. Wave heights are typically lower in summer, improving surface conditions.

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