Nothing about the fort itself is in a source this site can name — no date, no dimension, no rule. What is published is the off-season case against it: Dubrovnik records 142.3 mm of rain in November, the wettest of eight stations.
The obvious plan, and the record that argues with it
The standard advice for an outdoor site in a crowded city is to come out of season. For an open-air fortification in Dubrovnik that advice runs into the published climate normals, and the normals are unusually blunt about it.
Dubrovnik is the wettest station in the eight-station set this site uses. It is not marginally the wettest; November alone brings more rain than any month at any other station, and the wet half of the year here is long.
| Month | Rainfall, Dubrovnik | Rain days, Dubrovnik | Sunshine, Dubrovnik | Rainfall, Split | Rainfall, Hvar |
|---|---|---|---|---|---|
| November | 142.3 mm | 10.1 | 4.5 h/day | 101.7 mm | 94.0 mm |
| December | 119.8 mm | 9.7 | 4.0 h/day | 90.8 mm | 83.2 mm |
| January | 98.3 mm | 8.9 | 4.2 h/day | 73.7 mm | 68.4 mm |
| February | 97.9 mm | 9.1 | 5.1 h/day | 61.2 mm | 55.7 mm |
| March | 93.1 mm | 8.1 | 5.8 h/day | 63.4 mm | 62.7 mm |
November 142.3 mm, December 119.8 mm, January 98.3 mm. Split, 200 kilometres up the same coast, records 101.7 mm in November and Hvar 94.0 mm. Sunshine at Dubrovnik falls to 4.5 hours a day in November and 4.0 in December, from 10.3 in September.
142.3 mm
November rainfall at the Dubrovnik station — more than any month at any of the eight stations in the published normals
None of which makes an off-season visit wrong. It makes it a visit that has to be planned around weather rather than around crowds, which is the opposite of how the off-season is usually sold, and it makes an open-air site the first thing to lose rather than the reason to go.
Booking a winter trip for the outdoor sites
The off-season argument for Dubrovnik is real on every axis except the one that matters for anything open to the sky. There is no heat — no day at this station reaches 30 °C between November and April — and there are no crowds. But there are 10.1 wet days in November and 9.7 in December, on 142.3 and 119.8 mm of rain.
The second cost is access. Eight registered routes touch the city and half of them are commercial catamarans with no obligation to sail, so the sea half of a Dubrovnik trip largely does not exist in winter. What is left is the city on foot in the rain. If that is the trip, it is a fine trip — but plan it as an indoor one with outdoor moments, not the reverse. The quarter itself carries the summer half of the same decision.
Getting there in the first place
The arrivals data points the same way. The national statistics office recorded 49,275 passengers at Dubrovnik in November 2025, against 62,250 at Split and 337,851 at Zagreb. In June, Split alone runs at roughly 578,000.
So an off-season southern trip is a trip to a quiet airport at the far end of a long country, in the wettest month the record holds, with most of the sea network stood down. Every one of those is survivable and none of them is what the off-season is usually sold as.
What this page does not have
No construction date, no height, no dimension, no admission rule and no opening hour for the fort, because not one of them is in a source this site can name and date. The national Register of Cultural Goods holds 8,999 entries and 31 UNESCO listings as at 4 August 2026, and those are country-level totals that cannot be divided by a town or attributed to a single structure.
What is left is the calendar and the access, and on this particular site the calendar is the harsher of the two. If the fortifications are genuinely the reason for the trip, the shoulder months are the compromise: the day-night range argument covers why the hour matters less here than people think, and the full record has every month.
What do you need to work out next?
The month is the whole question. These come next.
Where to stay
Is an off-season stay worth it?
Half the city’s eight registered routes are commercial and do not run in winter.
Getting around
What is the summer version of this decision?
August records 9.8 days at or above 30 °C at this station; September records 0.7.
When to go
How wet is November really?
142.3 mm across 10.9 wet days, the wettest month in the eight-station record.
Planning
Does going early help in summer?
The July day-night range here is 6.8 °C, the narrowest of the southern stations.
Climate data: DHMZ (meteo.hr), climate normals 1971–2000. Passenger figures: Državni zavod za statistiku (DZS), monthly airport traffic releases. Ferry data: Agencija za obalni linijski pomorski promet (ZOLPP), 2026 state coastal line register and per-line timetables.