Supetar Weather in September
September in Supetar brings high temperatures, with daytime highs of 24°C (75°F) and nights around 19°C (66°F). Quite a bit of rainfall is expected, around 101 mm (4 in), so pack an umbrella.
Rainfall in Supetar in September
Records from the past 30 years suggest around 10 days of rain, with 101 mm (4 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Supetar in September
September in Supetar brings typical temperatures with highs around 24°C (75°F) and lows of 19°C (66°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Supetar in September
The month enjoys around 250 hours of sunshine, creating mostly sunny days with good weather conditions.
Average water temperature in September
The water is 22°C (72°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.Should you favor a climate that's both dry and comfortably warm, May, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Croatia, check out our Supetar's climate page.
Supetar Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
24°C (75°F)
Water Temperature
22°C (72°F) *
Chance of Rain
32%
Precipitation
101 mm (4 in)
Rainy days
10 days
Sunshine
250 hours *
Percentage Sunshine
71% *
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Supetar typically drop from around 27°C (81°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 19°C (66°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Supetar in September
Browse day-by-day weather records for Supetar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Supetar historical weather extremes in September
The extremes listed below come from historical weather data collected in Supetar from 1993 through 2025.
- Supetar recorded its highest September temperature of 35°C (95°F) on September 1, 2024.
- The lowest daytime temperature in September was 15°C (59°F), recorded on September 6, 2007.
- Supetar registered its coldest September night on September 30, 1995, with temperatures dropping to 7°C (45°F).
Best Places in Croatia in September
Find out more about the weather in Croatia and which places have the best travel conditions in this month. See all of Croatia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Supetar in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 22°C (72°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Supetar in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Croatia, check out our Supetar's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Supetar climate overview or explore weather in Croatia.
