Sveti Grgur Island
Uninhabited island formerly used as prison
Sveti Grgur sits in the northern Adriatic's Kvarner archipelago; its abandoned prison buildings and rugged shoreline attract boaters, day-trippers and people interested in recent island history.
Sveti Grgur at a Glance#
About Sveti Grgur#
Sveti Grgur is an island in the northern Adriatic Sea, part of Croatia’s Primorje-Gorski Kotar County in the Kvarner Gulf. It is a rocky, largely uninhabited island with limited built infrastructure.
The island is notable in recent history for having been used as a detention site during the 20th century; it no longer supports a permanent civilian population. There are no established tourist facilities and visits are typically limited to private boats or organized excursions.
Earlier historical details are limited in general public sources, and the island today is primarily of interest for its geography and its place in regional 20th-century history rather than as a developed visitor site.
Sveti Grgur lies in the Kvarner archipelago off the coast of northern Croatia, between the larger islands and the mainland. The nearest inhabited islands and coastal towns provide the usual launching points for visits.
- 20th-century use: The island was used in the 20th century as a detention site under Yugoslav authorities, and several sources note its later abandonment and lack of permanent population.
Weather & Climate near Sveti Grgur#
Sveti Grgur's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in July) and cold winters (coldest in January). Temperatures range from 3°C to 28°C. Abundant rainfall (1075 mm/year), wettest in October.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | 3° - 9° | 4° | 86 mm | partly cloudy | 92% | 3.0 m/s | 0.1 low | 9.1h |
| February | Acceptable | 3° - 9° | 4° | 72 mm | partly cloudy | 90% | 3.1 m/s | 0.3 low | 10.3h |
| March | Good | 5° - 12° | 7° | 71 mm | partly cloudy | 85% | 3.2 m/s | 0.6 moderate | 11.8h |
| April | Very Good | 9° - 16° | 12° | 76 mm | partly cloudy | 79% | 3.0 m/s | 1.0 high | 13.3h |
| May | Very Good | 13° - 21° | 17° | 74 mm | partly cloudy | 76% | 2.7 m/s | 1.5 high | 14.6h |
| June | Excellent | 17° - 25° | 21° | 78 mm | some cloud | 75% | 2.5 m/s | 1.9 very high | 15.3h |
| July | Ideal | 19° - 28° | 23° | 44 mm | mostly sunny | 69% | 2.5 m/s | 2.0 very high | 15.0h |
| August | Excellent | 18° - 28° | 23° | 64 mm | mostly sunny | 67% | 2.5 m/s | 1.6 very high | 13.8h |
| September | Very Good | 15° - 23° | 19° | 125 mm | some cloud | 75% | 2.7 m/s | 1.0 high | 12.4h |
| October | Good | 11° - 18° | 15° | 138 mm | partly cloudy | 84% | 2.9 m/s | 0.5 moderate | 10.8h |
| November | Acceptable | 7° - 13° | 8° | 138 mm | partly cloudy | 90% | 3.3 m/s | 0.2 low | 9.5h |
| December | Acceptable | 4° - 10° | 5° | 109 mm | partly cloudy | 92% | 3.2 m/s | 0.1 low | 8.7h |
