Last updated: March 17, 2025
Experience the charming September weather in Omis, Croatia, where warm days and pleasant evenings create the perfect backdrop for exploration. With maximum temperatures reaching a comfortable 30°C (86°F) and an average of 20°C (69°F), the climate is ideal for outdoor activities. Although there's an average precipitation of 92 mm (3.6 in) over 7 days, the humidity remains at a moderate 69%, ensuring that even the occasional rain enhances rather than hinders your visit. Enjoy the blend of sun and mild rains that September brings, making it a delightful time to discover the beauty of Omis.
In September, the charming coastal town of Omis, Croatia begins to transition from the peak summer heat into more temperate conditions. With minimum temperatures around 10°C (50°F) and averages settling at 20°C (69°F), the weather remains pleasantly warm, making it perfect for outdoor activities. By midday, temperatures can reach up to 30°C (86°F), inviting beachgoers and adventurers to enjoy the stunning Adriatic coastline before autumn sets in. As a late-summer month, September offers a delightful blend of warmth and comfort, with the air starting to cool slightly, hinting at the changes to come. This refreshing shift not only enhances the vibrant scenery but also creates an inviting atmosphere for travelers seeking a beautiful seaside escape.
In September, Omis, Croatia, sees a notable uptick in rainfall, with 92 mm (3.6 inches) of precipitation accumulating over 7 days. This marks a slight increase from the drier summer months of July and August, which combined received only 60 mm (2.4 inches) across just 9 days. The transition into autumn kicks off a shift in weather patterns, as the summer's dry spell gives way to a wetter climate in the following months, setting the stage for more significant rainfall in October and November. This gradual rise in precipitation not only rejuvenates the lush landscapes but also signifies the coming transition towards winter, highlighting the region's dynamic seasonal shifts.
In September, the humidity in Omis, Croatia settles at a comfortable 69%, marking a transition from the drier summer months. This slight increase from August's 65% reflects the onset of autumn, but it remains significantly lower than the peak levels seen earlier in the year. Throughout the winter months, humidity rises sharply, averaging around 81% in November and December, contrasting the more moderate levels experienced from July to September. This trend suggests a shift in atmospheric conditions as the region prepares for the cooler, more humid months ahead, making September a pleasant time for those looking to enjoy the lingering warmth of summer without the heavier humidity of winter.
As summer fades into autumn, the UV Index in Omiš, Croatia begins to taper off from its peak, yet September still boasts a noteworthy index of 7, categorized as high. This level indicates that while sun exposure is more manageable than the scorching summer months, caution is still essential. With a burn time of approximately 25 minutes, sunbathers should remain vigilant, especially during midday hours. Compared to earlier months where the index soared to 10, September offers a gentler sun experience, making it an ideal time for outdoor activities without the extreme risk of sunburn. Visitors can enjoy the pleasant weather while being mindful of sun safety practices. For more details, check out the complete Omis UV Index.
UV Risk Categories
As summer transitions to autumn in Omis, Croatia, September offers a delightful farewell to the warm months, boasting approximately 343 hours of sunshine. This bright month typically shines brighter than October's 310 hours, marking a gradual decrease in daylight yet retaining the warmth of late summer. Following a peak in July with 434 hours, the sun slightly wanes in August and September, but these hours remain significantly higher than the colder months ahead. Visitors can still relish in outdoor activities and scenic views, making September a perfect blend of warmth and tranquility as the vibrant hues of fall begin to emerge.
In Omiš, Croatia, the likelihood of sunny weather in September is a delightful 61%, marking a sweet spot in the transition from summer to autumn. This month follows the peak sun exposure of July and August, which boast 69% and 73% likelihoods, respectively. As summer wanes, September still offers a generous amount of sunshine, making it a great time for outdoor activities and exploring the stunning coastline. While the chances of clear skies begin to drop in October, September retains a favorable balance of warmth and sunlight, inviting travelers to enjoy the lingering summer vibes before the chill of fall sets in.
As summer gently transitions into autumn, September in Omiš, Croatia, boasts a delightful 12 hours of daylight. This marks a slight decrease from the sun-soaked 15 hours enjoyed in July and June, yet it remains a generous amount as days begin to shorten. The gradual shift in daylight duration reflects the natural rhythm of the seasons, with September offering a perfect balance of light for outdoor activities. This month serves as a graceful reminder of summer's lingering warmth while hinting at the cozy embrace of fall that follows. The vibrant coastal scenery of Omiš during this time is nothing short of magical, making it an ideal destination for those looking to relish the last golden rays of summer.
As summer wanes and September rolls into Omiš, Croatia, the wind begins to soften, reflecting the seasonal transition. The average wind speed dips to 2.2 m/s (5 mph), a gentle whisper compared to the stronger breezes of earlier months. This reduction in wind intensity is typical for this time of year, as the region shifts from the bustling summer, characterized by sustained winds of around 2.5 m/s in July and August, to the more tranquil conditions of autumn. While September's winds are the calmest seen all year, this subtle change creates an inviting atmosphere perfect for leisurely strolls along the stunning coastline or indulging in the local culture at a relaxed pace. As the month closes, wind speeds rise again, hinting at the return of fall’s crispness, making it a unique chapter in Omiš's year-round climatic tapestry.
The weather in Omis 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 Omis and find detailed weather information for every month.
In September, temperatures are generally milder, ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (69°F). The month experiences about 92 mm (3.6 in) of precipitation over approximately 7 days and a humidity level of 69%. In stark contrast, January brings much colder temperatures, with a minimum of -10°C (15°F) and a maximum of 15°C (59°F), resulting in an average of just 5°C (42°F). This winter month sees slightly more rainfall, totaling 101 mm (4.0 in) over about 10 days, along with higher humidity at 83%. For more details about the winter climate, you can check out Omis weather in January.
In comparing the weather of September and February, September presents a much milder climate with temperatures ranging from a minimum of 10°C (50°F) to a pleasant average of 20°C (69°F), peaking at a warm 30°C (86°F). While this month experiences some rainfall, totaling 92 mm (3.6 in) over 7 days, humidity is relatively moderate at 69%. In contrast, February showcases a colder environment with temperatures dipping as low as -5°C (23°F), averaging around 7°C (46°F), and rising up to 18°C (64°F) at most. This month sees higher precipitation at 114 mm (4.5 in) across 11 days and increased humidity at 76%. For more details, you can check Omis weather in February.
September and March present contrasting weather profiles. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (69°F), fostering a warm and pleasant atmosphere. Meanwhile, March experiences cooler temperatures, with a minimum of -8°C (18°F) and a maximum of 19°C (67°F), averaging just 9°C (49°F). Additionally, both months see significant precipitation, with September recording 92 mm (3.6 in) over 7 days and March slightly higher at 100 mm (3.9 in) over 9 days. Humidity levels are also noteworthy, standing at 69% in September and rising to 73% in March, contributing to a more brisk environment as winter transitions to spring. For more insights on March weather, you can visit Omis weather in March.
Comparing the weather in September and April reveals distinct seasonal differences. September typically boasts higher temperatures, with averages around 20°C (69°F) and highs reaching up to 30°C (86°F), while April sees cooler averages of 13°C (55°F) and maximums of 24°C (75°F). Additionally, September experiences slightly more humidity at 69%, compared to April's 75%. Though both months have similar levels of precipitation, September’s 92 mm (3.6 in) over 7 days is closely matched by April's 89 mm (3.5 in) over 10 days, indicating a wetter but more consistently warm September. For a deeper look at April's climate, check out Omis weather in April.
September and May present distinct weather patterns, reflecting the transition of seasons. In September, temperatures range from a mild 10°C (50°F) at their lowest to a warm 30°C (86°F) at their peak, with an average of around 20°C (69°F). This month also experiences a fair amount of precipitation, with 92 mm (3.6 in) expected over approximately 7 days, resulting in a humidity level of 69%.
In contrast, May tends to be cooler, with temperatures starting at 7°C (45°F) and rising to a maximum of 26°C (78°F), averaging about 17°C (63°F). It also sees slightly less precipitation at 84 mm (3.3 in), but it is distributed over more days, with rain occurring on 13 days, leading to higher humidity at 78%. For a more detailed look at weather specifics in May, check out Omis weather in May.
In comparing the weather between September and June, we see some notable differences despite their similar maximum temperatures. September typically has a slightly wider temperature range, with minimums around 10°C (50°F) and an average of 20°C (69°F), while June features higher minimums of 12°C (54°F) and an average of 22°C (71°F). Additionally, September experiences higher precipitation levels, with 92 mm (3.6 in) of rain falling over an average of 7 days, compared to June's 42 mm (1.6 in). Humidity levels are also slightly elevated in June at 75%, compared to 69% in September. For more information on June weather specifics, you can check Omis weather in June.
In comparing the weather between September and July, September generally presents a cooler climate with average temperatures ranging from 10°C (50°F) to 30°C (86°F), while July tends to be warmer, with temperatures between 16°C (61°F) and 31°C (89°F). Additionally, September experiences significantly more rainfall, with 92 mm (3.6 in) over about 7 days, compared to only 31 mm (1.2 in) across 4 days in July. Humidity levels are slightly lower in July at 71%, compared to September's 69%. For a more detailed look at July weather specifics, you can refer to Omis weather in July.
September weather tends to be cooler than August, with minimum temperatures dropping from 15°C (59°F) in August to 10°C (50°F) in September. The average temperature in September is 20°C (69°F), compared to August's warmer average of 25°C (77°F). While August enjoys less precipitation with only 29 mm (1.2 in) over 5 days, September sees a notable increase in rainfall, totaling 92 mm (3.6 in) over 7 days, contributing to a higher humidity level of 69% compared to August's 65%. For more details about August conditions, you can visit Omis weather in August.
September and October present a notable contrast in weather patterns. In September, the temperatures typically range from a minimum of 10°C (50°F) to a maximum of 30°C (86°F), with an average of 20°C (69°F). This month experiences about 92 mm (3.6 in) of precipitation over 7 days and maintains a humidity level of 69%. In contrast, October sees a cooler climate with temperatures dropping to a minimum of 8°C (46°F) and a max of 23°C (73°F), averaging 15°C (60°F). Precipitation increases slightly to 109 mm (4.3 in) over 8 days, and humidity rises to 76%. For a more detailed look at the conditions in October, you can refer to Omis weather in October.
September weather typically showcases warmer temperatures, with daily averages around 20°C (69°F) and maximums reaching up to 30°C (86°F). In contrast, November sees a significant drop, with average temperatures falling to 12°C (54°F) and highs of just 20°C (68°F). Additionally, September experiences less rainfall, totaling 92 mm (3.6 in) over about 7 days, while November is much wetter, with 238 mm (9.4 in) spread across 14 days. The humidity also rises slightly from September's 69% to November's 81%, contributing to a cooler and more damp climate. For more details on November conditions, you can visit Omis weather in November.
In September, the weather is generally mild and pleasant, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F) and an average of 20°C (69°F). Rainfall is moderate, with about 92 mm (3.6 in) over approximately 7 days, contributing to a humidity level of 69%. Conversely, December brings a significant drop in temperatures, with a minimum of -1°C (30°F) and a maximum of 15°C (59°F), averaging around 8°C (46°F). This winter month is notably wetter, receiving 230 mm (9.0 in) of precipitation over 16 days and experiencing higher humidity at 81%. For more details on December weather in Omis, visit Omis weather in December.
As summer fades, September in Omis ushers in a refreshing transition marked by moderate temperatures and increased humidity. Unlike the scorching heat of July and August, the average temperature dips to a delightful 20°C (69°F), making outdoor activities more enjoyable. However, residents and visitors should prepare for the occasional rain, with precipitation falling on about seven days throughout the month. This blend of warmth and precipitation sets September apart, creating a uniquely pleasant atmosphere that showcases the beauty of Omis in early autumn. For more detailed insights into what to expect, check out Omis Climate.