White houses of Mandraki on Nisyros above the sea

Nisyros

Nature and geology lovers wanting an authentic day-trip destination and a quiet overnight.

Fitting Nisyros into your route

Closest islands

Straight-line distance between main ports, not ferry time.

About Nisyros

Nisyros is a still-active volcanic island built around a wide caldera you can walk right into: the Stefanos crater hisses with sulphur vents and bubbling mud, a short ride from Mandraki, the main port.

Most visitors come as a day trip from Kos, so anyone staying overnight has black-and-white Mandraki and the abandoned village of Nikia largely to themselves.

Weather on Nisyros

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Average temperature by month

AprilMayJuneJulyAugustSeptemberOctober
18°C / 64°F22°C / 72°F26°C / 79°F28°C / 82°F28°C / 82°F26°C / 79°F22°C / 72°F

Average afternoon temperature, °C. Useful for spotting when it actually turns summer-warm.

Tips

  • Walk into the Stefanos crater in the morning, before day-trippers arrive from Kos.
  • Visit Nikia village for its unique round central square and caldera views.
  • Stay overnight if you can; almost all visitors leave in the evening.

Islands near Nisyros

Closest first, measured between main ports.

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Tilos

Hikers, birdwatchers and eco-conscious travelers wanting one of Greece's quietest, greenest islands.

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Kos

Cyclists and families who appreciate flat islands with plenty of beaches

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Rocks framing the sea on the coast of Pserimos

Pserimos

Beach lovers wanting a small, sandy day-trip island between Kos and Kalymnos.

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Kalymnos island's harbour with traditional architecture and calm waters

Kalymnos

Climbers and active travelers who love a rawer, less touristy island

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