Split · Month comparison

June vs September

September ranks #1 overall vs June at #2. Croatia's best-kept secret: June-quality weather, dramatically lower crowds, moderate prices.

Split June — Peristyle square inside Diocletian's Palace with gladiator actors posing, tourists around the ancient Roman columns

June

#2 of 12 months

Best match

Outstanding: 27°C, almost no rain, Split Summer Festival in the Peristyle, before July's peak crush.

  • ↑Split Summer Festival opens: outdoor theatre and music performances inside Diocletian's Palace Peristyle
  • ↑27°C with only 34mm rain: the first genuinely dry summer month, sea at 24°C
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
FactorJuneSeptember
Weather score
9
9
Value score
4
5
Crowd score
5
5
Events score
7
6
Atmosphere
9
9
Avg high temp27°C26°C
Monthly rain34mm67mm
Daily sunshine10hrs8hrs

June trade-offs

  • ↓Prices spike significantly — accommodation 50–60% above low season
  • ↓Crowds building: summer tourist season in full swing, palace lanes increasingly busy
  • ↓Book accommodation and Peristyle event tickets well in advance

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 →June in detail →September in detail →
Scores compare months within Split. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →