September–October
Wk 39–41
The quietest stretch among this region's best weather weeks: crowd level around 19 out of 100, weather comfort near 62.
- Crowd level
- 9–36
- Comfort
- 57–66
Croatia · Kvarner Bucht
Kvarner Bay: four stretches of water, islands and a karst hinterland
Between Istria and the Croatian Littoral lies a bay made of four stretches of water; its islands form the northernmost group of the Croatian archipelago. Inland the Gorski kotar and the Lika rise, with the largest karst polje and the Plitvice Lakes.
Busiest week
AugustCrowd level 100
Wk 32 · 6,125,245 overnight stays
Quietest weeks
JanuaryCrowd level 0
Wk 1–3 · measured against the region's own year, not against other regions
Sweet spot
September–OctoberCrowd level 9–36
Wk 39–41 · quietest while the weather still holds
Warmest month
23 °CComfort 83
July · around 55 mm of rain in the month
The overnight-stay figures come from a statistical area that this destination shares with Dalmatien, Dubrovnik and Istrien. They cover the whole area, not Kvarner Bucht on its own.
Kvarner Bucht in brief
The Kvarner Bay lies on the upper Adriatic between the Istrian peninsula in the west and the Croatian Littoral in the east. It is made up of four stretches of water: the Bay of Rijeka, the Kvarner in the narrow sense, the Kvarnerić and the Velebit Channel. Its islands, among them Krk, Cres, Lošinj and Rab, form the northernmost group of the Croatian archipelago, which runs down to Dubrovnik. Inland lie the Gorski kotar, the Lika and the Plitvice Lakes National Park.
When is Kvarner Bucht busy, when is it quiet?
Click a week. The panel on the right explains why it is busy or quiet.
Weather profile
Weather comfort is an absolute scale (0 = poor, 100 = ideal) and a second axis next to the season-relative crowd level.
JanuaryØ 0
FebruaryØ 1
MarchØ 2
AprilØ 9
MayØ 20
JuneØ 49
JulyØ 90
AugustØ 94
SeptemberØ 40
OctoberØ 10
NovemberØ 2
DecemberØ 1
Colour = season-relative crowd levelBar = weather comfort (Sun & warmth), absolute 0–100
Why this week?
September · Wk 39
Crowd level36/100 · moderate
quietbusy
Weather comfort28/100 · Sun & warmth
+36 % versus the region's annual average.
- Contributing months
- September (90 %) · October (10 %)
- Overnight stays/week
- 2,254,182
- Main source markets
- Germany (27 %) · Croatia (12 %) · Slovenia (10 %) · 90% of guests modelled
- Region range
- 71,451–6,125,245 (avg 1,655,941)
- Base years
- 2022, 2023, 2024, 2025 (excluding 2020, 2021)
v1: Crowd-Score aus der Eurostat-Basisschicht (Übernachtungen), moduliert vom Schulferien-Druck der Quellmärkte, region-spezifisch gewichtet mit dem Quellland-Mix. Season-relativ zur Region. Event-Schichten folgen.
Plan your trip
Pre-filled with the next date in week 39.
DestinationKvarner Bucht
Travel datesPick a week in the calendar
FlightSearch flights (opens in a new tab)
StayFind stays (opens in a new tab)
ActivityExplore activities (opens in a new tab)Ad · commission link
Photos: Johny Goerend · reisetopia · Dino Reichmuth on Unsplash
The travel year in Kvarner Bucht, month by month
The year as a table to read and to cite: crowd level for every month, plus weather comfort and temperature from the climate normals.
| Month | Crowd level0–100, season-relative | Weather comfort0–100, profile “mild” | Avg temperature |
|---|---|---|---|
| January | 0 | 12 | 1 °C |
| February | 1 | 16 | 4 °C |
| March | 2 | 27 | 7 °C |
| April | 9 | 45 | 11 °C |
| May | 20 | 59 | 15 °C |
| June | 49 | 80 | 21 °C |
| July | 90 | 83 | 23 °C |
| August | 94 | 82 | 23 °C |
| September | 40 | 71 | 17 °C |
| October | 10 | 54 | 13 °C |
| November | 2 | 27 | 7 °C |
| December | 1 | 14 | 3 °C |
The crowd level is season-relative: 100 is the annual peak of Kvarner Bucht itself, not the busiest destination in Europe. The figures say when it is quiet here — not where it is quieter than elsewhere.
Weather comfort 0–100 from the climate normals, profile “mild” – the same profile as the recommendation above, not the selection in the calendar. A “–” means the data for that month is missing.
Index 2.0 · As of 25/08/2026
The windows worth catching
Three windows from the model: first whether the weather suits the region, then how busy it gets.
May
Wk 20–22
A second option, also with usable weather: crowd level around 22, weather comfort near 64.
- Crowd level
- 18–30
- Comfort
- 57–70
August
Wk 31–33
The region's peak: crowd level around 99 out of 100. Only if the dates are fixed.
- Crowd level
- 97–100
- Comfort
- 82–83
Kvarner Bucht compared with Europe
How full the accommodation is here, measured against Europe – on the only measure on which two travel regions can be compared.
- Bed occupancy in Kvarner Bucht
- 21.8
- European median
- 23.1
per cent of bed places, annual mean
per cent of bed places, annual mean
Furthest from the median: January, at <0.1× the value. Closest to the median: September, at 1.2× the value.
Mean across 12 months, weighted by their weeks. This occupancy compares travel regions with one another. The crowding in the table above compares Kvarner Bucht with itself. The two measures are never combined.
Climate through the year
Average temperature with day/night range and precipitation across the twelve months.
- Avg temperature
- Day/night range
- Precipitation
| Month | Avg temperature (°C) | Day avg (°C) | Night avg (°C) | Precipitation (mm) |
|---|---|---|---|---|
| Jan | 0 | 1 | -1 | 117 |
| Feb | 2 | 4 | 1 | 128 |
| Mar | 5 | 7 | 3 | 127 |
| Apr | 8 | 11 | 6 | 87 |
| May | 12 | 15 | 10 | 131 |
| Jun | 18 | 21 | 16 | 67 |
| Jul | 20 | 23 | 18 | 55 |
| Aug | 20 | 23 | 17 | 68 |
| Sep | 15 | 17 | 13 | 132 |
| Oct | 11 | 13 | 9 | 131 |
| Nov | 6 | 7 | 5 | 195 |
| Dec | 2 | 3 | 1 | 143 |
The band shows mean daytime to nighttime temperature. Precipitation shown as monthly total (mm). Typical monthly value (climate normal), not a forecast.
How sunny?
How much sun a typical day delivers, month by month, expressed as hours of full midday sun.
Sunny
≈ 4.0 h of full midday sun per day, annual average
Jun
Sunniest month
| Month | ≈ h of full midday sun per day |
|---|---|
| Jan | 1.6 |
| Feb | 2.3 |
| Mar | 3.9 |
| Apr | 5.2 |
| May | 5.7 |
| Jun | 6.7 |
| Jul | 6.7 |
| Aug | 5.8 |
| Sep | 4.2 |
| Oct | 2.9 |
| Nov | 1.6 |
| Dec | 1.3 |
Basis: mean daily solar irradiance in kWh/m²/day; 1 kWh/m² is roughly one hour of full midday sun (1,000 W/m²). Not the same as measured sunshine duration. Typical monthly value (climate normal), not a forecast.
Directly reachable from
Destination airports of Kvarner Bucht and every European departure airport with a direct connection to them.
Destination airports
Select a destination airport to see the direct departure airports.
“Directly reachable” means a direct connection exists according to our sources. We do not show a live timetable. Availability and flight days can vary by season and airline.
Ski areas in Kvarner Bucht
Mapped ski areas in this region with slope kilometres, lifts and elevation, plus the long-term snow average from our climate data.
- Ski areas
- 2
- Slopes in total
- 11 km
- Lifts
- 9
- Highest point
- 1,354 m
On a long-term average, February sees the most snow: 6 cm mean snow depth across the region.
| Ski area | Slopes | Lifts | Elevation |
|---|---|---|---|
| Platak | 8.99 km | 7 | 1,085–1,354 m270 m vertical drop |
| Rudnik Tršće | 1.6 km | 2 | 830–1,019 m189 m vertical drop |
Slope, lift and elevation figures come from open mapping and are complete to varying degrees. “Not available” means not mapped, not “does not exist”. Opening hours and season are not included. Snow figures are long-term averages for the whole region, not snow depth on the mountain and not a forecast.
Kvarner Bucht in detail
Four seas in one bay
The bay lies on the upper Adriatic in Croatia, bounded in the west by the east coast of Istria and in the east by the Croatian Littoral. It is made up of four stretches: the Bay of Rijeka, the Kvarner in the narrow sense between Istria and the islands of Cres and Unije, the Kvarnerić between Cres and Lošinj in the west and Krk and Rab in the east, and the Velebit Channel. The Velebit Channel runs between southern Krk, Rab and Pag on one side and the mainland on the other; the Vinodol Channel, historically called the Canale della Montagna, adjoins its northern stretch. Because of the bora and a jet effect through the Velebit range, the Velebit Channel counts among the dangerous waters of the world.
The name and the islands
For the historical name Quarnero, the fourfold division of these sea areas counts as the most likely reading; the onomastician Petar Skok based it on the four ancient sea routes that ran here. The islands form the northernmost group of the Croatian archipelago, which runs down to Dubrovnik; the inhabited ones are Krk, Pag, Cres, Lošinj, Rab, Susak, Unije, Ilovik, Male Srakane and Vele Srakane. Krk is the largest island in the bay and is joined to the mainland by a bridge, a bridge joins Cres and Lošinj as well, and most of the smaller islands are car-free. Pag lies in the bay but is mostly reckoned to Dalmatia.
Rijeka, Opatija and the tunere
Rijeka is the largest city on the bay and a port city; the Rijeka theatre and the city museum stand there. As Fiume the city was declared a free city after the First World War and joined to the Kingdom of Italy in the 1920s, while Yugoslavia received the small Baroš harbour and the suburb of Sušak. Opatija and Lovran are visitor towns on the shore of the bay. Viewing platforms stand right on the coast for spotting shoals of tuna, called tunere here.
Littoral and Litorale
The Kvarner country counts as the central area of the Croatian Littoral, the Hrvatsko Primorje; a precise boundary is unusual in this coastal landscape. From the High Middle Ages into the twentieth century the area belonged, together with the Trieste province, Venezia Giulia, the Slovene Primorska and Croatian Istria, to the Habsburg monarchy as the Litorale. Senj, at the foot of the Velebit range, is the setting of the children's novel „Die rote Zora und ihre Bande“, published in 1941.
Karst in the hinterland
The Gorski kotar is an upland plateau inland, dominated by the green karst. In the Lika the Ličko polje forms the largest karst polje at 700 square kilometres; until 1881 the Lika belonged to the Austrian Military Frontier. The Plitvice Lakes National Park, founded in 1949, is a UNESCO World Cultural Heritage site: 16 lakes lie in steps one above the other, linked by about 90 waterfalls, with a drop of roughly 180 metres and falls between three and 78 metres over 19,200 hectares. With them come the Northern Velebit National Park with the Premužićeva staza trail and the Učka nature park on the western rim, from whose Vojak the view reaches across the bay.
Island beaches and the kitchen
The old town of Rab is ringed by walls; at Lopar on the same island the sandy Rajska plaža runs for a kilometre and a half. Kandarola near Lopar counts as one of the first naturist beaches in Europe. On Krk the beach at Baška stretches over two kilometres of fine gravel. From the area come Pag cheese made of sheep's milk and šurlice, hand-made pasta; Gospić in the hinterland is the seat of the Lika-Senj county and a bishop's see, and Otočac lies on the trout-rich Gacka.
How it differs from the other Adriatic destinations
The four Croatian destinations cut the same coast differently: the Kvarner is a sea area of four stretches of water with its islands, Istria the peninsula on its western rim at some 3,500 square kilometres, Dalmatia the coastal landscape to the south with around 942 islands, islets, cliffs and rocks, Dubrovnik the city at the southern end of the same archipelago, which counted 41,562 inhabitants with all its districts in 2021. In the west the bay borders on the east coast of Istria, and in the Učka range along its rim the Vojak is at once Istria's highest point and the viewpoint over the bay; Opatija lies on its shore and was declared Istria's first seaside resort in 1889. Southwards the transition is just as soft: the island of Pag lies in the bay and is mostly reckoned to Dalmatia, and its sheep's cheese belongs to both kitchens. A karst hinterland belongs to the Kvarner: the Gorski kotar and the Lika, with the largest karst polje and the Plitvice Lakes, lie inland, while Dalmatia gathers its population along the coast and Dubrovnik is a city territory with the Elaphiti Islands and Lokrum.
Frequently asked questions about the best time to visit Kvarner Bucht
Short answers on timing, weather and getting there, all from the data on this page.
When is the best time to visit Kvarner Bucht?
- The best time to visit Kvarner Bucht is September–October (Wk 39–41): it is the quietest stretch among the region's best weather weeks – crowd level around 19 out of 100, weather comfort about 62 out of 100.
When is Kvarner Bucht quietest?
- January (Wk 1–3) is the quietest time in Kvarner Bucht. Crowd levels there sit at 0 out of 100, the lowest across the year.
When is Kvarner Bucht busiest?
- Kvarner Bucht is busiest in August (Wk 32) with around 6,125,245 overnight stays in the peak week.
What is the weather like in Kvarner Bucht and when is it warmest?
- It is warmest in Kvarner Bucht in July with an average of 23 °C and around 55 mm of rain in the month.
When is there the most snow in Kvarner Bucht and when are ski conditions best?
- Kvarner Bucht has the most snow in February with an average of around 6 cm. Those are the most reliable weeks for winter sports.
When is Kvarner Bucht least busy while still having good snow?
- The best time for quiet winter sports in Kvarner Bucht is January: with still around 6 cm of snow, the crowd level of about 0 out of 100 is below peak season.
How do you get to Kvarner Bucht?
- Kvarner Bucht is reachable via 6 destination airports with direct flights, including Dubrovnik Airport (DBV), Split Airport (SPU) and Zadar Airport (ZAD).
Quiet travel windows across Europe, once a month
The Crowd Report names the emptiest weeks of the coming months — for every region, not just this one. Free, unsubscribe any time.
Sources and data vintages
Every provenance note on this page, collected in one place.
- Crowding figures
- Index 2.0 · As of 25/08/2026. v1 approximation, calculated from Eurostat overnight stays. Day tourism and cruises (Venice, Dubrovnik …) are still missing, so we show these destinations as quieter than they are. The crowd score is a model-based forecast, not a measurement.
- Climate data
- Generated using Copernicus Climate Change Service information 2025.
- Reachability
Data sources: direct connections from Wikipedia (“Airlines and destinations”, licensed CC BY-SA 4.0, aggregated and modified by us), cross-checked with Eurostat, Destatis and the UK Civil Aviation Authority; airport data from OurAirports (Public Domain). The derived connection data is licensed under CC BY-SA 4.0.
Data as of: September 2026
- Ski areas
Data sources: ski areas from OpenSkiMap, based on OpenStreetMap, licensed under ODbL 1.0; snow depths from ERA5-Land (Copernicus Climate Change Service).
- Region text
- Text by HolidayHub, written from Wikivoyage „Kvarner-Bucht“ (1747831) · Wikipedia „Kvarner-Bucht“ (267697350) · Wikidata Q938838. Wikivoyage and Wikipedia are licensed CC BY-SA 4.0, Wikidata CC0.
- Data basis
- All figures are approximations derived from open data (crowd level from Eurostat overnight stays, climate from Copernicus/ERA5-Land), not measurements.