Early September 1 September
83°F
Typical afternoon high
20% historical wet-day frequency
Croatia · Beach
Croatia's coast
in September.
Is September a good time?
Warm days.
Fewer overnight stays than August.
September averages 77°F afternoons and 75°F seas, with about 8 rain days. Later September is typically cooler.
- Afternoons
- 77°F
- Sea
- 75°F
- Visitor demand
- 43%of August peak
Historical Jadranska Hrvatska regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Croatia's whole Adriatic side, from Istria in the north to Dubrovnik in the far south: Zadar, Split, Hvar and the islands, plus the inland Lika highlands around Plitvice Lakes. These figures describe all of it together.
Overall match
7.6/10 · scores & prioritiesWhat matters most?
Weather 50% · Crowds 30% · Cost 20%
#2 of 12 months here · Balanced mix
Weather8.6/10Very good
CrowdsModerate seasonvs its own year; overnight stays do not measure queuesFor its size, one of Europe's busiest this month
CostPriceyfor Europe; Croatia-wide price level
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
What to expect.
What should I pack?
Afternoons around 77°F (25°C): T-shirt weather; nights around 61°F (16°C): light layers. About 13 hours of daylight. About 8 rain days in a typical September.
Can I swim in September?
The sea averages 75°F. Our swimming guide: warm for swimming. Your comfort will vary. This is open water near the coast, not a beach-specific reading.
Monthly coastal averages from NOAA, 2011–2025. Sea temperature is separate from the weather and Overall scores.
A typical day: temperatures & daylightAfternoons, nights, sea temperature & daylight Show detailsHide details
About 13 hours of daylight.
The sun rises about 06:35 and sets about 19:11 (local time, mid-month). Mornings start around 61°F (16°C); afternoons reach about 77°F (25°C). Expect rain on about 8 days in a typical September.
Typical afternoon
77°F (25°C)
average daily high, 15 recent Septembers
Night low
61°F (16°C)
average daily minimum
Sea
75°F (24°C)
warm; open water near the coast, NOAA satellite record 2011–2025
Daylight
12h 36m
on the 15th, computed from latitude
Early, middle or late?
Early or late September?
Early September is typically warmer. The afternoon high averages 83°F on the 1st, versus 72°F on the 30th. Historical wet-day frequency rises from 20% to 31% between those dates.
Mid September 15 September
78°F
Typical afternoon high
25% historical wet-day frequency
Late September 30 September
72°F
Typical afternoon high
31% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Daily calendar & holiday datesSeptember 2027 · historical weather & dated holidays Show calendarHide calendar
September 2027 calendar
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 183° | 282° | 382° | 482° | 581° | ||
| 681° | 780° | 880° | 980° | 1080° | 1179° | 1279° |
| 1379° | 1478° | 1578° | 1677° | 1777° | 1876° | 1976° |
| 2076° | 2175° | 2275° | 2375° | 2474° | 2574° | 2673° |
| 2773° | 2873° | 2972° | 3072° |
Afternoon high rain likely (25%+) local school holidays public holiday event
School-holiday dates for September 2027 aren't available in our data yet. A day without a school marker doesn't mean schools are open.
Afternoons cool from about 82°F (28°C) in the first week to 73°F (23°C) in the last. The chance of a wet day runs 20–31%.
Crowds, cost and getting there
Visitor season
Will it be busy?
Moderate season. September averages 43% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Jadranska Hrvatska do not measure queues, day visitors or congestion at individual sights. For its size, one of Europe's busiest this month.
Hotel price season
Will it be cheaper?
Well above usual. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Croatia as a whole
Near EU average
2024 restaurants and hotels price level: 95 where the EU average is 100. A relative index, not a room rate.
Recorded US nonstop flights · 2024
Recorded this month
from Newark; 2024 schedule, Eurostat
Year-to-year variation
How much does September vary?
Across the recorded years
In the 15 years from 2011 to 2025, the month's afternoons averaged between 73°F (23°C) and 82°F (28°C); in 11 of them they were within 3°F (1.5°C) of the typical 77°F (25°C). Rain days ranged from 3 to 13; half the years had 5–11.
Rain days in each September
Rain days
8
at least 1 mm, typical year; about 12 in a wet year
Mostly sunny days
12 of 30
cloud cover under 30%
Years with a 95°F+ day
0 of 15
no September in the last 15 years had a day at or above 95°F (35°C)
Good weather days
23 of 30
rated very good or better
See every recorded SeptemberHistorical monthly averages, year by year Show detailsHide details
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 82°F | 3 |
| 2012 | 77°F | 8 |
| 2013 | 76°F | 9 |
| 2014 | 74°F | 12 |
| 2015 | 77°F | 5 |
| 2016 | 78°F | 6 |
| 2017 | 73°F | 13 |
| 2018 | 79°F | 5 |
| 2019 | 78°F | 9 |
| 2020 | 79°F | 8 |
| 2021 | 79°F | 4 |
| 2022 | 75°F | 12 |
| 2023 | 81°F | 4 |
| 2024 | 77°F | 11 |
| 2025 | 78°F | 7 |
Checked against official climate averages for Dubrovnik, Hvar, Mali Losinj, Rijeka, Rovinj, Split-Marjan and Zadar. How we check
Compare dates
August, September
or October?
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 86°F | 77°F | 68°F |
| Sea | 78°F | 75°F | 70°F |
| Rain days | 4 | 8 | 9 |
| Overnight demand | 100% | 43% | 12% |
August: Warmer afternoons, warmer sea and fewer rain days than September. More overnight demand. August guide →
October: Cooler afternoons and cooler sea than September. Less overnight demand. October guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Compare any of the 12 monthsChoose another month and compare it with September Show comparisonHide comparison
Yellow marks the top three months on the Balanced mix. September stays as your reference.
June to August have a Weather score at least 1.0 point higher than September, but more overnight stays.
Your comparison
September or August?
Overnight stays are 100% of the busiest month.
National hotel prices and local visitor demand suggest well above usual. No measured regional room rate is available.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 77°F | 86°F |
| Nights | 61°F | 68°F |
| Sea | 75°F | 78°F |
| Rain days | 8 | 4 |
| Visitor season | Moderate season | Peak season |
| Overall / 10 | 7.6 | 7.1 |
| Month rank | #2 | #5 |
Every month, in detail Show detailsHide details
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 3.5 | #12 | 50°F | 38°F | 58°F | 11 | 1.5 | Off season |
| February | 3.9 | #11 | 53°F | 39°F | 56°F | 8 | 1.9 | Off season |
| March | 4.8 | #8 | 58°F | 43°F | 56°F | 8 | 3.6 | Off season |
| April | 6.5 | #7 | 65°F | 49°F | 58°F | 8 | 5.8 | Low season |
| May | 7.6 | #3 | 72°F | 56°F | 64°F | 9 | 7.4 | Low season |
| June | 8.1 | #1 | 81°F | 65°F | 72°F | 5 | 9.7 | Moderate season |
| July | 7.4 | #4 | 86°F | 69°F | 77°F | 4 | 9.9 | Peak season |
| August | 7.1 | #5 | 86°F | 68°F | 78°F | 4 | 9.8 | Peak season |
| September | 7.6 | #2 | 77°F | 61°F | 75°F | 8 | 8.6 | Moderate season |
| October | 7.1 | #6 | 68°F | 54°F | 70°F | 9 | 6.6 | Low season |
| November | 4.6 | #9 | 59°F | 47°F | 66°F | 12 | 3.2 | Off season |
| December | 3.9 | #10 | 53°F | 41°F | 61°F | 12 | 2.1 | Off season |
Near here
Nearby places in September
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
ZagrebCroatia · about 100 miles
Balanced Overall 6.8 · Very good weather, 75°F (24°C) · Peak season · Cost moderate
Slavonia & eastern Croatiaabout 110 miles
Balanced Overall 7.8 · Very good weather, 76°F (24°C) · Moderate season · Cost moderate
Ljubljana, Lake Bled & western Sloveniaabout 140 miles
Balanced Overall 7.7 · Very good weather, 73°F (23°C) · Moderate season · Cost moderate
MarcheItaly · about 140 miles
Balanced Overall 8.1 · Excellent weather, 79°F (26°C) · Moderate season · Cost pricey
Friuli Venezia GiuliaItaly · about 180 miles
Balanced Overall 7.1 · Very good weather, 76°F (24°C) · Moderate season · Cost pricey
Elsewhere in Europe
Better September weather than Croatia's coast
Croatia's coast's weather ranks 42 of 77 beach regions this month. These beach regions outside Croatia have clearly better weather on your dates, nearest first, each compared with Croatia's coast.
PugliaItaly · about 240 miles
Excellent weather (9.8): 6°F warmer afternoons, 4 fewer rain days
CorsicaFrance · about 360 miles
Excellent weather (9.8): 2°F warmer afternoons, 4 fewer rain days, busier for its season (moderate season), pricier
CalabriaItaly · about 370 miles
Excellent weather (9.9): 4°F warmer afternoons
SardiniaItaly · about 450 miles
Excellent weather (9.8): 6°F warmer afternoons, 4 fewer rain days, busier for its season (busy season), pricier
Thessaloniki & HalkidikiGreece · about 450 miles
Excellent weather (9.9): 6°F warmer afternoons, 4 fewer rain days, busier for its season (busy season), cheaper
How we knowSources, regional scope & scoring method Show detailsHide details
It's moderate season, 43% of the busiest month and 52% above its average month. That means about 367,000 overnight visitors on a typical September night across the region, 5% of them from Croatia itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 139,000 more: 38 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 78 |
| How our weather was checked | Official climate averages for Dubrovnik, Hvar, Mali Losinj, Rijeka, Rovinj, Split-Marjan and Zadar from the national weather service, every month: afternoon highs typically within 1°F (0.7°C), night lows within 2°F (0.8°C). |
| Tourist nights per 1,000 residents per day | 279 |
| Busiest month here | August · 642 |
| Visitors as share of people present | 21.8% |
| Rank among Europe's regions this month | 98th percentile |
| Domestic share of nights | 5% |
| Platform rental nights per 100 counted nights | 38 |
| Visitor share if every platform night were extra | 27.8% |
| National hotel-price season | Croatia historical 2024–2025 index: Well above usual (+14% vs its average month). Not a local room quote. |
| Population used | 1.3 million |
| Statistical region | HR03 · Jadranska Hrvatska |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national. Full method · this region's data.