Last updated: March 17, 2025
September weather in Split, Croatia showcases a delightful transition into autumn, with maximum temperatures reaching a warm 29°C (84°F) and an average of 21°C (70°F). As the month progresses, the minimum temperatures dip to a comfortable 11°C (52°F) at night, ideal for evening strolls along the promenade. However, travelers should be prepared for some moisture, as the city experiences 102 mm (4.0 in) of precipitation over 8 days, accompanied by a moderate humidity level of 69%. Whether exploring historic sites or enjoying the stunning coastal views, September offers a pleasant mix of sun and occasional rain, perfect for experiencing the charm of Split.
As summer transitions into autumn, September in Split, Croatia, offers a delightful blend of warmth and mildness. With average temperatures hovering around 21°C (70°F), visitors can enjoy pleasant days, perfect for exploring the scenic coastline or sipping coffee at a local café. The minimum temperature dips to a comfortable 11°C (52°F), while highs can reach up to 29°C (84°F), making it an ideal time for outdoor activities without the sweltering heat typically found in July and August. As the month progresses, you’ll likely notice a gradual cooling trend, hinting at the approaching autumn, yet September remains a charming month, inviting travelers to relish the lingering warmth before winter sets in.
September in Split, Croatia, marks a transition in the weather as the summer warmth begins to fade, bringing a notable increase in precipitation. With 102 mm (4.0 in) of rainfall over approximately 8 days, September experiences a spike compared to the drier months of July and August. This resurgence in rainfall signals a shift towards the wetter season, which peaks in November. Interestingly, while September's total is substantial, it still falls short of the precipitation levels seen in the preceding months of winter. As autumn approaches, visitors can expect a mix of clear skies and refreshing showers, creating a vibrant atmosphere in this coastal city.
In September, Split, Croatia experiences a noticeable shift in humidity as it transitions from the summer months. With humidity levels at 69%, September marks a subtle increase from the drier conditions of August, which recorded 65%. This gradual rise reflects the city's move towards autumn, where humidity levels begin to align more closely with those in the earlier months of the year. Interestingly, despite being higher than August, September's humidity is relatively moderate when compared to the winter months, where it peaks at 83% in January. The overall trend showcases a cycle of seasonal changes, creating a comfortable climate for visitors who enjoy the mild weather before the cooler, more humid months set in.
September in Split, Croatia, marks a transition from the sweltering summer months, with the UV Index dipping to 7, categorizing it as high. This month offers a comfortable burn time of 25 minutes, encouraging outdoor enjoyment while still requiring some sun protection. As the season shifts, you’ll notice a gradual decline in UV exposure compared to the peak 10 in June and July, yet it's essential to remain vigilant. With warm, sunny days continuing into early autumn, September remains a splendid time to explore the beautiful coastline, but always be prepared against the sun's rays. For detailed UV forecasts, check out Split UV Index.
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As summer transitions into autumn, September in Split offers a delightful balance of warmth and light, with an impressive 345 hours of sunshine gracing the city. Following the peak of the summer months, which beautifully bathed Split in over 400 hours of sunlight, September maintains a radiant charm, making it an enticing option for those seeking a pleasant getaway. The steady decline in sunshine hours from July's peak marks a graceful shift towards the cozy hues of autumn, yet September's sunny disposition still outshines the chillier months ahead, such as October and November. This makes September an ideal time to explore Split's picturesque coastline, vibrant culture, and historical treasures under a canopy of golden sunshine.
September in Split, Croatia, boasts a 62% chance of sunny weather, marking a delightful transition from the summer's peak sunshine in July and August, which see probabilities of 70% and 73% respectively. As the bustling summer crowds begin to wane, the early autumn month offers a pleasant balance of warmth and sun, often providing ideal conditions for outdoor activities and exploration. Notably, September remains brighter than several other fall months, such as October, with a 53% chance of sunshine. Overall, the month stands as a vibrant choice for those looking to relish a bit of summer's last glow while enjoying the striking beauty of Split.
As summer transitions into autumn, September in Split, Croatia, offers a delightful balance of daylight, boasting approximately 12 hours of sunshine. This month marks a gradual decline from the peak of 15 hours in June and July, as daylight begins to taper off towards the colder months. With the warm hues of fall emerging, September provides an exquisite opportunity to enjoy the lingering daylight while exploring the city’s stunning coastline and historical sites. As daylight dwindles further in October to 10 hours, the rhythm of the seasons becomes evident, inviting both locals and visitors to savor the beauty of Split in this vibrant, transitional period.
As summer wanes and September arrives in Split, Croatia, the winds begin to soften, with average speeds dropping to a gentle 2.7 m/s (6 mph). This marks the year's calmest period, following the mild breezes of August. As the sun sets on the Mediterranean, the wind's whisper hints at the changing seasons, creating a serene atmosphere perfect for leisurely strolls along the waterfront. Interestingly, this month’s lull in wind speeds contrasts sharply with the brisker winds seen in the early months of the year, illustrating a seasonal ebb that welcomes the cozy embrace of autumn. Nature's rhythm is evident, inviting both residents and visitors to savor the more tranquil moments that September brings to this enchanting destination.
The weather in Split changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Split and find detailed weather information for every month.
September and January present strikingly different weather conditions. In September, temperatures are much milder, with average highs reaching 29°C (84°F) and lows of 11°C (52°F). The month experiences around 102 mm (4.0 in) of precipitation over approximately 8 days, coupled with a humidity level of 69%. In contrast, January is considerably colder, with average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 15°C (59°F). Precipitation slightly increases to 106 mm (4.2 in) spread over about 10 days, while humidity rises to 83%. For a closer look at January weather specifics, you can visit Split weather in January.
September and February present quite contrasting weather conditions. In September, temperatures range from a mild 11°C (52°F) at night to a warm average of 21°C (70°F), peaking at 29°C (84°F) during the day. The month sees about 102 mm (4.0 in) of precipitation over 8 days, with humidity levels averaging 69%. In stark contrast, February experiences much cooler temperatures, with a minimum of -3°C (27°F), an average of 9°C (48°F), and a maximum of 16°C (61°F). Precipitation slightly increases to 112 mm (4.4 in) over 10 days, and the humidity rises to 76%. For a detailed look at February weather in Split, you can visit Split weather in February.
September and March present contrasting weather conditions. In September, temperatures are generally warmer, with a minimum of 11°C (52°F), an average of 21°C (70°F), and a maximum of 29°C (84°F). This month also experiences substantial rainfall, with 102 mm (4.0 in) over about 8 days, and the humidity averages around 69%. In contrast, March is considerably cooler, featuring a minimum temperature of -4°C (24°F), an average of 10°C (50°F), and a maximum of 18°C (65°F). Precipitation levels are slightly lower at 96 mm (3.8 in) over approximately 10 days, with humidity peaking at 73%. For a closer look at March weather, check out Split weather in March.
September and April present distinct contrasts in weather. In September, the average temperature reaches a pleasant 21°C (70°F), with daily highs peaking at 29°C (84°F) and lows of 11°C (52°F). It also experiences a notable amount of rainfall, totaling 102 mm (4.0 in) over about 8 days, while maintaining a humidity level of 69%. In contrast, April is cooler, with average temperatures around 13°C (55°F), highs of 23°C (73°F), and lows of 3°C (37°F). Although it has slightly less precipitation at 85 mm (3.4 in) over 9 days, the humidity is a bit higher at 75%. For more specific details on April weather, you can visit Split weather in April.
When comparing the weather in September and May, it’s clear that September tends to be warmer and drier. September boasts average temperatures around 21°C (70°F), with highs reaching up to 29°C (84°F) and a humidity level of 69%. In contrast, May has cooler temperatures, averaging 17°C (63°F) with a maximum of 25°C (77°F) and higher humidity at 78%. Additionally, September experiences less rainfall, with 102 mm (4.0 in) over about 8 days, compared to May’s 75 mm (2.9 in) spread across 12 days. For more detailed information, you can check Split weather in May.
When comparing the weather in September and June, both months exhibit warm temperatures, but September tends to be slightly cooler on average. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 29°C (84°F) with an average of 21°C (70°F), while June offers temperatures ranging from 14°C (57°F) to 29°C (85°F), averaging 22°C (71°F).
September also experiences more frequent rainfall, with 102 mm (4.0 in) over about 8 days, compared to June's relatively drier conditions of 35 mm (1.4 in) over 5 days. Additionally, humidity levels are slightly lower in September at 69%, compared to the higher 75% humidity often felt in June. For a more detailed look at June's weather, you can visit Split weather in June.
In comparing the weather between September and July, we notice that September experiences a wider range in temperatures, with minimums around 11°C (52°F) and maximums reaching 29°C (84°F), while the average temperature stands at 21°C (70°F). Conversely, July is warmer, featuring higher minimums at 17°C (62°F) and maximums peaking at 30°C (86°F), with an average of 24°C (75°F). Additionally, September sees greater precipitation with 102 mm (4.0 in) over 8 days, compared to July's relatively dry conditions with only 26 mm (1.0 in) over 3 days. Humidity levels are similar, with September at 69% and July slightly higher at 71%. For further details on July weather specifics, please refer to Split weather in July.
When comparing the weather in September to that of August, notable differences emerge. September experiences cooler temperatures, with a minimum of 11°C (52°F) and an average of 21°C (70°F), while August maintains a warmer climate with minimums of 16°C (62°F) and an average of 25°C (77°F). Rainfall is also significantly higher in September, accumulating 102 mm (4.0 in) over 8 days, compared to August's modest 28 mm (1.1 in) over just 3 days. Additionally, September is slightly more humid at 69%, compared to August’s 65%. For a detailed look at August’s weather in Split, check out Split weather in August.
In September, the weather features warmer temperatures with averages reaching up to 21°C (70°F) and maximums of 29°C (84°F), along with a humidity level of 69%. The month experiences 102 mm (4.0 in) of precipitation over 8 days, providing a mix of sunny and rainy periods. In contrast, October sees a notable drop in average temperature to 17°C (62°F), with maximums capping at 23°C (74°F) and minimums slightly lower at 10°C (49°F). Precipitation increases marginally to 111 mm (4.4 in) over the same number of rainy days, and humidity rises to 76%. For more details on the weather conditions, you can check Split weather in October.
In comparison to September, November experiences a significant drop in temperatures, with minimums reaching just 3°C (38°F) compared to September's milder 11°C (52°F). The average temperature decreases from 21°C (70°F) in September to only 13°C (56°F) in November, while the maximum temperature also falls from 29°C (84°F) to 20°C (69°F). Precipitation levels rise notably in November, totaling 257 mm (10.1 in) over 14 days, nearly doubling September's 102 mm (4.0 in) over 8 days. Additionally, humidity increases, averaging 81% in November, compared to 69% in September. For more detailed insights, visit Split weather in November.
September and December present quite different weather patterns. In September, the temperatures are warmer, with average highs reaching up to 29°C (84°F) and a lower humidity of 69%. The month enjoys 8 days of precipitation totaling 102 mm (4.0 in). In contrast, December brings much cooler temperatures, with highs averaging only 16°C (60°F) and a noticeable increase in humidity at 81%. Rainfall also intensifies, with 233 mm (9.2 in) over 16 days. For more detailed information on December weather, you can check this link: Split weather in December.
As summer transitions into autumn, September weather in Split presents a delightful mix of warmth and mildness. With pleasant temperatures averaging around 21°C (70°F), the month stands out for its comfortable days, making it an ideal time for outdoor activities. However, unlike the peak summer months, which are typically dry and hot, September brings a slight uptick in precipitation, with around 102 mm over about 8 days, adding a refreshing touch to the atmosphere. This blend of humidity at 69% enhances the overall charm, providing a softer climate perfect for exploring the stunning coastlines of this beautiful region. For more detailed insights, check out the full report on Split Climate.