Nea Kameni Island
Volcanic islet in Santorini with active fumaroles
Nea Kameni sits at Santorini's caldera centre; short boat trips bring hikers to volcanic craters, fumaroles and barren lava fields, while nearby hot‑spring swims and caldera views from the rim are common activities.
Nea Kameni at a Glance#
Admission: Boat tours vary (typically €15-€30)
About Nea Kameni#
Nea Kameni is a small volcanic islet in the centre of the Santorini caldera, part of the South Aegean island group. It is the youngest of the caldera islets and consists of successive lava domes and scoria cones.
Visitors typically reach Nea Kameni by boat from Santorini’s ports and can follow marked paths to the crater rim to view fumarolic activity and recent lava surfaces. The island is a common stop on half-day and full-day caldera boat tours that include nearby hot springs.
The islet was formed by successive eruptions that built lava flows and domes within the caldera; volcanic activity on the islets and in the caldera has continued into the 20th century, and the area is monitored for seismic and volcanic activity.
Nea Kameni sits at the centre of Santorini’s flooded caldera, between the main island of Thera (Santorini) and the islet of Thirassia, and is accessible only by small passenger boats.
- Recent activity: The most recent recorded eruptions on Nea Kameni occurred in the mid-20th century, and the island remains volcanically monitored.
What to See#
- Crater and summit walk: The volcanic crater and surrounding solidified lava flows that form the island’s summit area and walking routes for visitors.
- Hot springs and nearby islets: Nearby hot spring anchorage and shallow bathing areas visited on combined boat tours, commonly paired with Palea Kameni and Thirassia itineraries.
How to Get to Nea Kameni#
Daily boat tours to Nea Kameni depart from Fira, Oia, and other caldera ports; the trip is 20-45 minutes depending on sea conditions and route.
Tips for Visiting Nea Kameni#
- Combine a Nea Kameni sunrise walk with a hot-springs swim near Palea Kameni for a full volcanic day trip.
- Wear sturdy shoes-walking the crater rim is rocky and often hot underfoot in summer.
- Book a half-day or full-day caldera tour from Fira or Oia; small-boat operators land visitors on the islet for a short hike.
Best Time to Visit Nea Kameni#
Most visitors go between late spring and early autumn; early mornings avoid tour-boat traffic and heat.
Weather & Climate near Nea Kameni#
Subtropical climate with hot summers (peaking in July) and cool winters (coldest in February). Temperatures range from 10°C to 28°C. Moderate rainfall (551 mm/year) with a pronounced dry season.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | 10° - 14° | 12° | 96 mm | - | - | 4.8 m/s | - | - |
| February | - | 10° - 14° | 12° | 80 mm | - | - | 4.6 m/s | - | - |
| March | - | 11° - 16° | 13° | 71 mm | - | - | 3.5 m/s | - | - |
| April | - | 13° - 19° | 16° | 33 mm | - | - | 3.1 m/s | - | - |
| May | - | 17° - 22° | 20° | 16 mm | - | - | 3.0 m/s | - | - |
| June | - | 21° - 27° | 24° | 6 mm | - | - | 3.3 m/s | - | - |
| July | - | 23° - 28° | 26° | 2 mm | - | - | 4.1 m/s | - | - |
| August | - | 23° - 28° | 26° | 3 mm | - | - | 4.4 m/s | - | - |
| September | - | 21° - 26° | 23° | 15 mm | - | - | 3.7 m/s | - | - |
| October | - | 18° - 23° | 20° | 66 mm | - | - | 3.4 m/s | - | - |
| November | - | 14° - 19° | 17° | 75 mm | - | - | 3.5 m/s | - | - |
| December | - | 12° - 16° | 14° | 88 mm | - | - | 4.8 m/s | - | - |
