Best Time to Visit Plitvice Lakes: Seasons, Crowds, Hours and Rules

Plitvice Lakes National Park is open 365 days a year, but it is a different place in each season. July and August are the busiest months, and from June to September an adult ticket costs €40 on the park’s 2026 price list. October and April are the sweet spot for most people: the ticket drops to €23, both halves of the lake system are normally open, and the autumn months are among the less visited. Winter is the cheapest at €10, but usually only the Lower Lakes are open.

If summer is the only time you can come, you can still have a good visit: book an early entry slot, start at the less crowded entrance, or come after 4 p.m. for the cheaper afternoon price. This guide goes through the seasons, the crowds, the opening hours, the time of day and the rules that apply all year.

The year at a glance

When	Adult ticket (2026)	What is usually open	Crowds
January to March	€10	The Lower Lakes; the Upper Lakes are closed in winter	Among the quieter months
April and May	€23	The Upper Lakes usually reopen in early April	May had just under 200,000 visitors in 2024
June	€40, or €25 after 4 p.m.	Everything, weather permitting	High season begins
July and August	€40, or €25 after 4 p.m.	Everything, weather permitting	The busiest months of the year
September	€40, or €25 after 3 p.m.	Everything, weather permitting	Just under 200,000 visitors in 2024
October	€23	Everything, weather permitting	Autumn is among the quieter seasons
November and December	€10	The Lower Lakes; the Upper Lakes are closed in winter	Among the quieter months

Prices are the park’s own for 2026; our tickets and routes guide has the full table for students, children and two-day tickets.

How busy Plitvice gets

In 2024 the park counted 1,492,994 visitors from about 163 countries. Those visits are not spread evenly. The park’s own analysis of the year picks out July and August as the months with the most visitors, while the winter and autumn months are less visited. May and September each had just under 200,000 visitors, with more group visits in those shoulder months.

Two more figures from the same year help you dodge the worst of it:

61% of visitors started at Entrance 1 and 39% at Entrance 2. The Plitvice tourist board describes Entrance 2 as generally less crowded.
Tickets are sold by the hour. The number of tickets for each hour and each entrance is limited, which spreads people through the day. In summer the morning slots online usually sell out days in advance, so book as soon as your dates are fixed.

Where you start matters as much as when. Most visitors begin at Entrance 1, the closest to the Great Waterfall and the Lower Lakes canyon. The Upper Lakes, reached by boat from Entrance 2, are larger lakes with gentler shores.

Spring: April and May

Spring is when the whole park comes back into use. In winter the Upper Lakes are closed, and the park says their reopening depends on the weather and usually happens in early April. Before that date, assume you will only see the Lower Lakes.

From 1 April to 31 May an adult ticket costs €23, a little over half the summer price. May is not quiet, though: in 2024 it was one of the two shoulder months with just under 200,000 visitors, and the park notes more group visits in those months.

Spring weather in the hills is changeable. The park warns that conditions change quickly, that individual trails can be closed temporarily and that vehicles can be stopped. Melting ice in spring is also one of the things the park lists as able to break the tufa barriers between the lakes. Check the park’s current-conditions page on the morning you go.

Summer: June to September

Summer is when Plitvice is at its busiest and its most expensive, and also when the whole park is open and the days are longest. A resort near the park sums it up as long opening hours, every boat and train running, and the biggest crowds between 10:00 and 15:00.

On the 2026 price list an adult ticket costs €40 from June to September. The way to pay less is the afternoon price: from 1 June to 31 August, entry after 4 p.m. costs €25 instead of €40, and from 1 to 30 September the change comes at 3 p.m. Children aged 7 to 18 pay €15, or €9 at the afternoon price.

How to make summer work:

Buy online, in advance. Tickets are sold for a date, an entrance and an hour, and the gate only sells what is left. The park itself encourages visitors to buy in advance, and warns that buying on site can take longer in peak season.
Take an early slot. You cannot enter before the time on your ticket, so the first hour of the day is the one to book if you want to walk before the busiest hours. The early-morning guided walk on our tours page is built around entering at opening time.
Start at Entrance 2. It took fewer than four in ten visitors in 2024, and its programmes start with the boat across Kozjak into the Upper Lakes.
Or come late. The afternoon price suits anyone staying near the park, who can walk a short programme in the evening light.

September is a halfway house. The summer price still applies and in 2024 the month had just under 200,000 visitors, but it is past the July and August peak, and the afternoon price starts an hour earlier, at 3 p.m.

Autumn: October and November

October is the month most likely to give you the whole park at the lower price. An adult ticket costs €23 from 1 to 31 October, the Upper Lakes are normally still open, and the park’s own figures put the autumn months among the less visited. The park sells autumn on its colours, with leisurely walks beside the lakes, and forest covers most of the park.

Hours shorten as the days do. The park’s autumn page lists ticket sales at Entrance 1, Entrance 2 and the Flora entrance from 7:00 to 15:00, with the car parks open from 7:00 to 19:00. On the park’s hours page, checked on 3 October 2026, the entrances were open from 07:00 to 18:00 and ticket sales ran until 15:00.

From 1 November the low-season price of €10 applies. As the weather turns, treat November as the start of winter: check the current-conditions page before you travel, because the Upper Lakes close for the winter.

Winter: December to March

The park stays open through the winter, and an adult ticket costs €10 from January to March and in November and December. In exchange you get a smaller park.

What is open. The park says the Lower Lakes are usually open in winter and the Upper Lakes closed, until they reopen, weather permitting, in early April.
Shorter hours. The park’s winter page lists ticket sales from 8:00 to 13:00, at Entrance 1 and the Flora auxiliary entrance, with the car parks open from 7:00 to 17:00. An earlier edition of the page gave the entrances’ winter hours as 8:00 to 15:00.
Fewer facilities. In the colder part of the year most of the park’s restaurants and cafés close, and Hotel Jezero is the only accommodation the park keeps open.
Phone ahead. The park recommends calling before you arrive to check conditions, and its current-conditions page shows which lake areas are open and whether the boats and panoramic vehicles are running.

Winter has its own draw. The Lower Lakes canyon and the Great Waterfall are at the Entrance 1 end of the park, so even the reduced winter park includes the Great Waterfall. When there is enough natural snow, the park also opens the Mukinje ski slope, about 2.5 km from Entrance 2, with night skiing under floodlights on Fridays and Saturdays.

The best time of day

Whatever the season, the hour you choose matters almost as much as the month.

Mornings are best for space. Entries are limited for each hour, so an early slot puts you on the trails before the later hours have filled up. Book the earliest hour your transport allows.

The middle of the day is the crowded part: local advice puts the summer peak between 10:00 and 15:00. If you can only come then, the Upper Lakes from Entrance 2 are the better choice.

Late afternoon is cheapest in summer, but watch the closing times. On the October timetable the long boat route ran every 30 minutes from 08:00 to 16:30, and the panoramic vehicles from station St3 back to St2 ran until 17:30. If your programme ends with a ride, be at the station in time.

You are also allowed to be late, within limits: the park lets you in up to an hour after the time on your ticket, but not before it.

How long to stay

The eight programmes take from 2 to 3 hours (programmes A and E) to 6 to 8 hours (the K routes). Programmes C and H, which cover both the Upper and Lower Lakes, take 4 to 6 hours, and the park notes they need a higher level of fitness.

The Plitvice tourist board goes further and suggests that a one-day visit can feel rushed, recommending two days for the lakes themselves. Two days also lets you walk each half of the park separately, at a quieter hour. A two-day ticket is valid on two consecutive days, and guests of the park’s hotel and campsites buy a ticket for the first day only and enter free on the following days.

Two ways to beat the summer crowds

If July or August is the only time you can come, the timetable and the price list give you two good options.

The overnight split. Arrive in the afternoon and buy an entry after 4 p.m. at the afternoon price of €25. Walk programme A from Entrance 1, which takes 2 to 3 hours and covers the Great Waterfall and the Lower Lakes canyon. The next morning, take the earliest slot you can get at Entrance 2 and walk programme E, also 2 to 3 hours, by boat across Kozjak and up through the Upper Lakes. You see the whole lake system, each half at a less crowded hour, and neither walk is long.

If you stay at Hotel Jezero or at the Korana or Borje campsites, it is cheaper still: guests buy a ticket for the first day only and enter free on the following days, after extending it at reception.

The single early day. If you only have one day, book the first hour of the morning at Entrance 2 and walk programme H, which covers the whole lake area in 4 to 6 hours. Starting at the less used entrance and walking before the middle of the day keeps you ahead of the busiest hours for as long as possible.

Tours and the seasons

A day tour takes the ticket, the time slot and the transport off your hands, which is worth most in summer, when slots for popular hours go first. The guided day from Zagreb runs about 9–10 hours and adds the watermill village of Rastoke; tours from Zadar run about 10 hours and from Split about 12.

Outside summer, ask one more question before you book: what the tour does if part of the park is closed. In winter the Upper Lakes are usually shut and the boats and panoramic vehicles depend on conditions, so a programme built around a boat ride may not run as described. Each product states its own cancellation terms, and the park refunds its own tickets in full if it closes the park because of extreme weather.

What to wear and bring

The park’s advice is short and practical:

suitable clothing and adequate footwear for boardwalks and forest paths
rain and sun protection, depending on the season: an umbrella or raincoat, sunglasses, a hat, sunscreen
a look at the weather forecast before you set off
euros or a card, because the exchange offices at both entrances are closed

The lakes are part of a hilly landscape. They lie between 636 m above sea level at Prošćansko jezero and 503 m at Novakovića Brod, and the weather can turn quickly, so a layer you do not need is better than one you left in the car.

Access is limited for wheelchair users: the regular routes do not allow wheelchair access throughout the park, but staff at the entrance can recommend the most accessible route.

The rules, all year

Plitvice is protected for the tufa barriers that build its lakes. These natural dams are still growing, the active ones are estimated to be between 6,000 and 7,000 years old, and tufa is fragile and easily damaged. Most of the rules follow from that.

No swimming. Swimming in the lakes is strictly prohibited, in every season.
Stay on the marked paths. Walking off the marked footpaths is not allowed.
Take nothing. Collecting plants or taking any natural “souvenirs” is prohibited.
Do not feed the animals, and do not fish.
No fires and no camping inside the park.
Dogs on a leash, including on the boats and the panoramic vehicles.
No cycling in the park.
No drones. Remotely controlled aircraft for aerial filming are banned.

What you are visiting

It helps to know the scale of the place before you choose a season. The lake system is made up of 16 named lakes and several smaller unnamed ones, cascading one into the next over a length of about 8 km from south to north. Twelve form the Upper Lakes, on dolomite, larger and with gentler shores; four form the Lower Lakes, cut into a deep limestone canyon. The lakes end at the Sastavci falls, where the Korana River begins.

The Great Waterfall (Veliki slap) is the highest in the park; the Croatian Encyclopaedia gives the fall a height of 78 m. Kozjak, the lake the electric boats cross, is the largest and, at 46 m, the deepest.

The park was declared Croatia’s first national park on 8 April 1949, and was added to the UNESCO World Heritage List on 26 October 1979 for the process that builds the tufa barriers.

Frequently asked questions

When is the best time to visit Plitvice Lakes?

For most visitors, October or late April to May: an adult ticket costs €23 in 2026, both the Upper and Lower Lakes are normally open, and it is quieter than July and August, the park’s busiest months.

Is Plitvice Lakes open in winter?

Yes, the park is open 365 days a year. In winter the Lower Lakes are usually open and the Upper Lakes closed until early April, hours are shorter, and an adult ticket costs €10.

Can you swim in Plitvice Lakes?

No. Swimming in the lakes is strictly prohibited in every season, because the tufa barriers that hold the lakes are fragile.

What time should I arrive at Plitvice?

For the fewest people, book the earliest entry slot your transport allows. You cannot enter before the time on your ticket, but you may be up to an hour late. In summer, entry after 4 p.m. (3 p.m. in September) is cheaper.

Are dogs allowed at Plitvice Lakes?

Yes, on a leash at all times, including on the boats and panoramic vehicles.

How many days do you need at Plitvice?

One day covers a programme such as C or H, which takes in both the Upper and Lower Lakes in 4 to 6 hours. The Plitvice tourist board recommends two days for the lakes themselves.