What to pack for Split in September
- t-shirts and light layers
- a light jacket for evenings
- a packable rain layer
Humidity averages 61%; max daily wind around 17 km/h.
How September compares
Best months in Split: April–June & September–October. See the full best time to visit Split guide.
Split in September: the details
In September, Split sees average daytime highs of 26°C (80°F) and overnight lows of 18°C (65°F). Rainfall totals roughly 132 mm across 8.2 rainy days, and the sun shines about 10.4 hours per day with 12.3 hours of daylight mid-month. Relative humidity averages 61%.
In context: September is the 4th-warmest month and the 4th-wettest in Split. The sunniest month is July (13.6 h/day).
| Metric | September average |
|---|---|
| Daytime high | 26°C / 80°F |
| Overnight low | 18°C / 65°F |
| Rainfall | 132 mm over 8.2 rainy days |
| Sunshine | 10.4 h/day (12.3 h daylight) |
| Humidity | 61% |
| Travel score | 9.7 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Split, Croatia (43.51, 16.44) — see our methodology. Actual conditions vary year to year.
Not set on Split? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Split in September?
Daytime highs in Split in September average 26°C (80°F); nights drop to about 18°C.
Does it rain in Split in September?
Expect around 8.2 rainy days and 132 mm of rainfall in September.
Is September a good time to visit Split?
September is one of the best months to visit Split. Overall travel score: 9.7/10. The best months are April–June & September–October.
Also good in September, near Split
Where should you go next month?
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