Split · Month comparison

October vs September

September ranks #1 overall vs October at #5. Croatia's best-kept secret: June-quality weather, dramatically lower crowds, moderate prices.

Split October — aerial view of Klis Fortress on its dramatic hilltop with the Mosor mountain range behind, a day trip from Split

October

#5 of 12 months

Best match

Rain returning but crowds gone — good for day trips to Klis, Trogir, and Plitvice Lakes.

  • ↑Low crowds: the old town returns to a pace that feels genuinely local
  • ↑20°C: comfortable for walking, cycling, and cultural visits without summer heat
Split September — aerial view of Split's red-tiled rooftops and cathedral bell tower with the mountains and Adriatic beyond

September

#1 of 12 months

Best match

Croatia's best-kept secret: June-quality weather, dramatically lower crowds, moderate prices.

  • ↑26°C and sea at 25°C — same conditions as June but with a fraction of the crowds
  • ↑Diocletian's Palace navigable at all hours without July's overwhelming pressure
FactorOctoberSeptember
Weather score
6
9
Value score
8
5
Crowd score
8
5
Events score
4
6
Atmosphere
6
9
Avg high temp20°C26°C
Monthly rain95mm67mm
Daily sunshine6hrs8hrs

October trade-offs

  • ↓95mm: rain increases meaningfully — October afternoons frequently wet
  • ↓Sea cooling to 19°C: swimming technically possible but the beach season is largely over
  • ↓Some seasonal restaurants and tour operators closing or reducing hours

September trade-offs

  • ↓First autumn rains returning: 67mm — some September afternoons turn wet unexpectedly
  • ↓Early September still relatively busy; the significant drop comes in mid-to-late September
  • ↓Island ferry frequencies beginning to reduce from summer maximums
See all 12 months for Split →October in detail →September in detail →
Scores compare months within Split. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →