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Split's waterfront with palm trees and Marjan hill rising behind the old townDubrovnik's old town and harbour seen from the city walls

Split vs Dubrovnik in September

Split and Dubrovnik are close in September. Split averages 18–25°C with moderate-high crowds; Dubrovnik 18–25°C with moderate-high crowds.

By Daan · Last reviewed October 2026

Split and Dubrovnik

The verdict for September

  • WeatherVery similar9/10 vs 9/10
  • CrowdsVery similarModerate-High vs Moderate-High
  • PricesVery similar€€€€ vs €€€
  • OverallVery similar7.5/10 vs 7.5/10
Split's waterfront with palm trees and Marjan hill rising behind the old town

Split in September

Warm sea, calmer streets

Temperature
18–25°C
Crowds
Moderate-High
Prices
€€€€

+Warm sea and fewer visitors.

–Still busy on cruise days.

September is the best balance: swimming weather and calmer streets.

Split in September
Dubrovnik's old town and harbour seen from the city walls

Dubrovnik in September

Warm sea and thinner crowds

Temperature
18–25°C
Crowds
Moderate-High
Prices
€€€

+Warm sea, settled weather and fewer people than August.

–Cruise days can still pack the lanes.

September is the best balance of warm sea, comfortable temperatures and lower prices. Crowds drop noticeably after the first week.

Dubrovnik in September

Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.

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