Croatia Dubrovnik Weather in September — Climate Guide
September in Dubrovnik is very-high
September is very-high for Dubrovnik.
Best month. Post-cruise crowds drop sharply mid-month + still warm + swimmable sea.
Travel score
Dubrovnik September Weather Stats
Avg High
26°C
Avg Low
19°C
Rainy Days
7
80mm total
Sunshine
9h
Daily avg
Humidity
65%
moderate
UV Index
7
High
Wind
10 km/h
Gusts 28
Sea Temp
23°C
swimming peak
Crowds
Very busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
13 μg/m³
PM10
22 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
26°C
Nighttime
18°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 28 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- 26/19°C ideal
- Sea-temp 23°C swimmable
- Crowds dropping
- Korean Chuseok usable
Cons
- First half still crowded
- Korean Chuseok premium
September Events & Festivals
- Korean Chuseok
- Post-cruise season starts mid-month
Dubrovnik in September — Full Picture
Best month. Post-cruise crowds drop sharply mid-month + still warm + swimmable sea.
What to Wear & What to Pack
Late summer.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
17.7°C
11.7°C
8.7/mo
Summer (Jun·Jul·Aug)
28.7°C
21°C
5/mo
Autumn (Sep·Oct·Nov)
Current21°C
15°C
8.7/mo
Winter (Dec·Jan·Feb)
12.3°C
6.7°C
10.7/mo
Dubrovnik Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 12° | 6° | 11d·105mm | 4h | 72% | 1 | Quiet | Low season | |
| 12° | 6° | 10d·95mm | 5h | 70% | 2 | Quiet | Low season | |
| 14° | 8° | 9d·90mm | 6h | 67% | 3 | Quiet | Shoulder | |
| 17° | 11° | 9d·80mm | 7h | 65% | 5 | Moderate | Shoulder | |
| May (Best) | 22° | 16° | 8d·60mm | 9h | 60% | 6 | Busy | Peak |
| June (Best) | 26° | 19° | 6d·35mm | 11h | 60% | 8 | Very busy | Peak |
| 30° | 22° | 4d·30mm | 12h | 58% | 10 | Very busy | Peak | |
| 30° | 22° | 5d·50mm | 11h | 60% | 9 | Very busy | Peak | |
| September (Best) | 26° | 19° | 7d·80mm | 9h | 65% | 7 | Very busy | Peak |
| October (Best) | 21° | 15° | 8d·110mm | 7h | 70% | 4 | Busy | Shoulder |
| 16° | 11° | 11d·145mm | 5h | 73% | 2 | Moderate | Shoulder | |
| 13° | 8° | 11d·130mm | 4h | 75% | 1 | Quiet | Low season |
View Other Months
Dubrovnik September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Dubrovnik?
Dubrovnik in September is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Dubrovnik in September?
Dubrovnik September averages a high of 26°C and a low of 19°C.
Does it rain much in Dubrovnik in September?
Dubrovnik September averages 80mm of rainfall over about 7 rainy days.
What should I wear in Dubrovnik in September?
Late summer.
What time are sunrise and sunset in Dubrovnik in September?
Dubrovnik September sunrise is 06:30 and sunset is 19:15, with 12h 45min of daylight.
What's the air quality like in Dubrovnik in September?
Dubrovnik September air quality (AQI) averages 40, rated Good. PM2.5 averages 13μg/m³.
What activities are recommended in Dubrovnik in September?
In September, Dubrovnik is great for Walls walk, Cable Car, Lokrum.
Is September peak season in Dubrovnik?
Dubrovnik September crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Dubrovnik
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.