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Petitverdot CC BY-SA 4.0 Wikimedia Commons

Giannutri

Island

Off Tuscany's Argentario, Giannutri offers crystal-clear water, sheltered coves and Roman remains along its coast; boat trips, snorkeling and short walks to archaeological ruins attract day-trippers from nearby islands and the mainland.

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In this guide

Giannutri essentials

Address: Giannutri Island, Tuscan Archipelago, Italy
Admission: Ferry and landing fees vary; day trips and private charters available

About Giannutri

Giannutri is a small island in the Tyrrhenian Sea and the southernmost island of the Tuscan Archipelago. The island is sparsely inhabited and is best known for the archaeological remains of a Roman villa and associated maritime structures on its sheltered eastern bay.

Visitors commonly explore the Roman ruins at Cala Maestra, where masonry, seawalls and traces of buildings survive from the Roman imperial period. The island’s coastline and clear waters also attract boaters and snorkellers, but on-island services are limited.

Giannutri lies off the southern coast of Tuscany, south of the Monte Argentario peninsula, and forms part of the region’s archipelago of islands.

  • Access and facilities: The island is part of the Tuscan Archipelago and is reached by private boat or organized excursions from the mainland; visitor numbers are small and facilities limited.

What to See#

  • Roman villa (Cala Maestra): The remains of a Roman-era villa with masonry foundations, seawalls and fishponds located at Cala Maestra dating to the Imperial period.
When to Go

Best Time to Visit Giannutri

Best visited May-September for accessible boat services and swimming; shoulder seasons offer quieter conditions.

Summer
June-September · 20-30°C
Best weather for boat trips and swimming; busiest period.
Late spring & early autumn
May & October · 16-24°C
Fewer crowds and pleasant temperatures for hiking and exploration.

Weather & Climate near Giannutri

Climate

Temperate climate with warm summers (peaking in August) and cold winters (coldest in February). Temperatures range from 7°C to 27°C. Moderate rainfall (511 mm/year).

Air Quality: AQI 40 Good
Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
30°
Warmest Month
2°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 7° - 13° 8° 59 mm partly cloudy 75% 3.8 m/s 0.2 low 9.3h
February Good 7° - 13° 7° 47 mm partly cloudy 75% 3.9 m/s 0.4 low 10.4h
March Good 8° - 14° 11° 44 mm partly cloudy 78% 3.9 m/s 0.7 moderate 11.8h
April Very Good 9° - 16° 13° 36 mm partly cloudy 80% 3.8 m/s 1.1 high 13.2h
May Very Good 13° - 20° 17° 32 mm partly cloudy 81% 3.3 m/s 1.6 very high 14.4h
June Ideal 17° - 24° 20° 15 mm mostly sunny 80% 3.3 m/s 1.9 very high 15.1h
July Ideal 19° - 27° 23° 8 mm clear 77% 3.3 m/s 2.1 extreme 14.8h
August Ideal 20° - 27° 24° 26 mm mostly sunny 77% 3.3 m/s 1.7 very high 13.7h
September Excellent 18° - 24° 21° 50 mm some cloud 75% 3.4 m/s 1.1 high 12.3h
October Very Good 15° - 20° 17° 67 mm partly cloudy 78% 3.5 m/s 0.6 moderate 10.9h
November Good 10° - 16° 13° 69 mm partly cloudy 76% 3.8 m/s 0.3 low 9.6h
December Good 8° - 14° 11° 58 mm partly cloudy 74% 4.3 m/s 0.2 low 9.0h
Getting There & Around

How to Get to Giannutri

Regular ferries and seasonal excursion boats depart from Porto Santo Stefano and Isola del Giglio; travel time varies. Private charters can also land at designated coves. Once ashore, the island is walkable.

Tips for Visiting Giannutri

  • Bring sturdy footwear and sun protection; Giannutri has rocky coasts rather than sandy beaches.
  • Check local boat schedules from Porto Santo Stefano or Isola del Giglio.
  • Respect the marine protected area regulations-fishing and anchoring may be restricted.