September Weather in Primosten, Croatia

Last updated: March 17, 2025

In September, Primosten, Croatia experiences a delightful transition towards autumn, featuring a maximum temperature of 29°C (85°F) and an average of 22°C (72°F), providing perfect conditions for outdoor activities. As the minimum temperatures dip to a refreshing 12°C (55°F), the climate remains inviting. However, visitors should prepare for a bit of moisture, with an average precipitation of 82 mm (3.2 in) spread over approximately 7 days, keeping the landscape lush and vibrant. The humidity level hovers around 69%, adding a gentle warmth to the air, making September a wonderful time to explore Primosten's stunning coastal beauty.

September Temperature in Primosten

In September, Primosten experiences a delightful transition into early autumn, with temperatures cooling slightly while still retaining a warm atmosphere. The minimum temperature hovers around 12°C (55°F), offering a pleasant respite from the summer heat, while the average climbs to a comfortable 22°C (72°F). As the month progresses, you'll find maximum temperatures reaching up to 29°C (85°F), allowing ample opportunity for sun-soaked days by the Adriatic Sea. This trend reflects a charming balance—an ideal time for visitors to enjoy outdoor activities before the cooler months set in, creating unforgettable memories amidst stunning coastal views.

September Weather in Primosten: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Primosten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec485052576472767971645952
Data source: Temperature data for Primosten generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Primosten

September in Primosten, Croatia, marks a notable shift in precipitation patterns as the summer warmth begins to wane. With 82 mm (3.2 in) of rain over seven days, this month sees a significant increase from the drier months of June and July, which recorded just 28 mm (1.1 in) and 15 mm (0.6 in), respectively. This uptick in rainfall continues into October, hinting at the impending arrival of autumn. As the landscape starts to transform, the higher precipitation levels not only rejuvenate the flora but also set the stage for the even wetter months ahead, particularly November, which experiences a dramatic rise with 197 mm (7.7 in) over 15 days. The rhythmic ebb and flow of rain in September signals a seasonal transition, making it a vital time for both nature and those exploring the region.

September Precipitation Trends in Primosten

The chart displays monthly precipitation patterns in Primosten, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec80736559502815198286197159
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Primosten

As summer fades and September arrives in Primosten, Croatia, the humidity begins to shift, settling at a comfortable 69%. This marks a slight increase from the low of 65% seen in August, indicating a transition toward the wetter months ahead. Throughout the year, humidity trends showcase a gradual rise from the fresh air of winter, peaking in January and November at 83% and 81% respectively. As the seasons progress, you’ll notice a general pattern where the warm summer months tend to bring drier air, while late autumn and winter reclaim the balmy moisture. September, then, serves as a bridge, hinting at the lushness to come as the region prepares for the wetter embrace of fall.

September Average Humidity in Primosten

This chart illustrates the average monthly humidity levels in Primosten, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec83%76%73%75%78%75%71%65%69%76%81%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Primosten

In September, the UV Index in Primosten, Croatia reflects a gradual transition towards cooler months, with a value of 7, placing it in the high exposure category. This indicates that while the intensity of the sun is decreasing compared to the peak summer months, sun protection remains essential—expect a burn time of 25 minutes. As autumn approaches, September continues to offer ample sunshine, allowing for outdoor activities while reminding visitors to stay vigilant against UV radiation. With the UV Index dipping from the highs of summer, it’s a great time to enjoy the beautiful Croatian coastline while still being mindful of your skin health. For more detailed information, check out the Primosten UV Index.

Maximum UV Index Levels in Primosten for September

The chart shows the monthly maximum UV Index (UVI) for Primosten in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2467810987532
Data source: Primosten September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Primosten

September in Primosten, Croatia, offers a delightful transition from the summer's peak sunshine to the gentle embrace of autumn. With an impressive 345 hours of sunlight, September maintains a warm glow, soaking the coastal landscapes in golden hues. This month reflects a slight decline from the summer's high of 435 hours in July, yet it still outshines both October and the colder months ahead. The gradual decrease hints at the changing season while still inviting visitors to enjoy the outdoors, making it a perfect time for sun-soaked strolls by the Adriatic and leisurely beach days before the chill sets in. As the daylight hours dwindle, September remains a radiant gem in the Croatian sun calendar, captivating all who visit.

Monthly Sunshine Duration in Primosten: September Highlighted

The September sunshine duration represents the total number of hours Primosten experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec197h256h327h361h402h422h435h404h345h315h240h237h
Data source: Primosten September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Primosten During September

As summer transitions into autumn, September in Primošten, Croatia, boasts a commendable 65% chance of sunny weather, maintaining a delightful balance between warmth and mildness. This percentage reflects a slight dip from the peak of 74% experienced in August, yet it remains significantly higher than the chilly and cloudier months that follow. The data reveals a clear trend: as the year progresses from January's 38%, the likelihood of sunshine steadily increases, peaking in the height of summer before gently tapering off in the autumn months. Travelers can expect a delightful blend of sunny days and pleasant evenings, making September an ideal time to soak in the natural beauty of this stunning coastal destination.

Percentage of Sunny Days in September in Primosten

The chart illustrates the percentage of sunny days in Primosten throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Primosten experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%57%64%52%54%67%69%74%65%53%30%46%
Data source: Primosten September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Primosten in September

As summer fades into autumn in Primošten, Croatia, September offers a gentle transition, bringing about 12 hours of daylight. This decline, from the sun-drenched heights of 15 hours in June and July, signals the departure of long, sunlit days. Following a vibrant summer, the daylight hours begin to decrease gradually, yet remain generous compared to the onset of winter. With October's daylight dropping further to 10 hours, the shift in season is palpable, inviting residents and visitors alike to savor the warm hues of early autumn before the nights grow longer. This trend of diminishing daylight encapsulates the rhythmic dance of the seasons, beautifully reflected in the idyllic coastal charm of Primošten.

Average Daylight Hours in Primosten for September

The chart illustrates the variation in daylight duration in Primosten throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 29m11h 57m13h 26m14h 42m15h 21m15h13h 53m12h 27m10h 58m9h 39m8h 59m
Data source: Primosten daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Primosten

As summer gently gives way to autumn in Primosten, Croatia, the September winds begin to calm, with an average speed of just 3.3 m/s (7 mph)—the lightest of the year. This trend is a reflection of the gradual shift from the bustling, breezy days of earlier months, where winds peaked at 5.0 m/s (11 mph) in both May and April. As the warm summer months transition into fall, visitors can expect milder breezes conducive to leisurely strolls along the picturesque coastline. Despite this softening of the wind, Primosten's charm remains unwavering, inviting travelers to embrace the serene beauty of its September landscapes. With the winds dropped, it's the perfect time to appreciate the tranquil atmosphere and stunning vistas that this coastal gem has to offer before autumn's full embrace.

Average September Wind Speed in Primosten

The chart displays monthly wind speed patterns in Primosten, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.95.14.65.05.03.44.33.83.3 m/s4.75.55.7
Data source: Primosten September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Primosten Compares to Other Months

The weather in Primosten 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 Primosten and find detailed weather information for every month.

September and January offer strikingly different weather conditions. In September, temperatures range from a mild 12°C (55°F) at night to a warm 29°C (85°F) during the day, with an average of 22°C (72°F). The month sees about 82 mm (3.2 in) of rainfall spread over 7 days, accompanied by a humidity level of 69%. In contrast, January experiences much colder temperatures, with nighttime lows plunging to -5°C (24°F) and daytime highs reaching only 15°C (60°F), averaging around 9°C (48°F). This winter month has similar precipitation levels of 80 mm (3.2 in) but over 9 days, and higher humidity at 83%. For more details on January weather in this region, you can check Primosten weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a mild minimum of 12°C (55°F) to a warm average of 22°C (72°F), peaking at a hot 29°C (85°F). This month sees about 82 mm (3.2 in) of precipitation over 7 days, accompanied by a humidity level of 69%. In contrast, February is notably cooler, with temperatures dipping as low as -2°C (29°F) and averaging around 10°C (51°F), reaching a maximum of 16°C (62°F). Rainfall in February is slightly less at 73 mm (2.9 in) spread over 8 days, along with a higher humidity of 76%. For a detailed perspective on February's weather, you can visit Primosten weather in February.

September and March present distinctly different weather patterns. In September, temperatures range from a minimum of 12°C (55°F) to a pleasant average of 22°C (72°F), peaking at 29°C (85°F), with an overall humidity of 69%. The month experiences 82 mm (3.2 in) of precipitation over about 7 days, making it a relatively wet time as summer transitions into fall.

In contrast, March is much cooler, with temperatures dropping to a minimum of -3°C (28°F), averaging 11°C (52°F), and reaching a maximum of 19°C (67°F). Precipitation is somewhat lighter at 65 mm (2.6 in) but occurs over a slightly longer period of 9 days, accompanied by a higher humidity level of 73%. For more details on weather conditions in March, you can check out Primosten weather in March.

When comparing the weather in September and April, September generally offers warmer temperatures, with a minimum of 12°C (55°F) and an average of 22°C (72°F), compared to April's lower range of 5°C (40°F) and an average of 14°C (57°F). The maximum temperature in September reaches up to 29°C (85°F), while in April it peaks at 22°C (72°F). Precipitation is slightly higher in September, totaling 82 mm (3.2 in) over 7 days, compared to April with 59 mm (2.3 in) distributed across 8 days. Humidity is also a bit higher in April at 75%, versus 69% in September. For more details on April weather, you can check Primosten weather in April.

When comparing the weather in September and May, it's evident that September tends to be warmer and drier. September records average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 29°C (85°F), with an average humidity of 69%. In contrast, May features cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 25°C (77°F), accompanied by higher humidity at 78%. Additionally, September experiences 82 mm (3.2 in) of precipitation over about 7 days, while May sees less rainfall at 50 mm (2.0 in) spread across 9 days. For a closer look at conditions specific to May, you can view more about Primosten weather in May.

When comparing the weather in September and June, we notice some distinct differences despite their similar average temperatures of 22°C (72°F). September boasts a slightly cooler range, with minimum temperatures of 12°C (55°F) and maximums reaching 29°C (85°F), contrasted by June's warmer minimum of 15°C (59°F) and maximum of 30°C (86°F). Precipitation levels are notably higher in September, with 82 mm (3.2 in) over 7 days, compared to June's modest 28 mm (1.1 in) over just 4 days. Additionally, September's humidity at 69% is lower than June's 75%, making June feel relatively more humid and sticky. For a closer look at June conditions, you can visit Primosten weather in June.

In comparing the weather conditions of September and July, notable differences emerge. September experiences a wider range of temperatures, with minimums around 12°C (55°F) and maximums peaking at 29°C (85°F), while July maintains a milder range from 18°C (64°F) to 29°C (85°F) with an average of 25°C (76°F). Additionally, September sees significantly higher precipitation, totaling 82 mm (3.2 in) over approximately 7 days, compared to July's much drier 15 mm (0.6 in) across just 2 days. Humidity levels remain similar, with September at 69% and July at 71%. Those interested in more details about July weather can visit Primosten weather in July.

In comparing the weather between August and September, it is evident that August is generally warmer and drier. August boasts a minimum temperature of 18°C (64°F) and an average of 26°C (79°F), reaching a maximum of 31°C (88°F). In contrast, September experiences cooler temperatures, with a minimum of 12°C (55°F) and an average of 22°C (72°F), peaking at 29°C (85°F). Additionally, August sees only 19 mm (0.8 in) of precipitation over just 2 days, while September receives significantly more rainfall at 82 mm (3.2 in) across 7 days, coupled with a slightly higher humidity of 69%. For more detailed information on the weather during August, you can refer to Primosten weather in August.

September offers warmer temperatures, with averages around 22°C (72°F) and highs reaching 29°C (85°F), while October sees a slight drop in averages to 18°C (64°F) and maximums at 24°C (76°F). Both months experience a fair amount of rainfall, with September receiving 82 mm over 7 days and October slightly increasing to 86 mm over 8 days. Additionally, October tends to be more humid, with levels rising to 76% compared to September's 69%. For a closer look at October's weather, you can visit Primosten weather in October.

In September, the weather is generally warmer, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 29°C (85°F) and a comfortable average of 22°C (72°F). The month experiences moderate precipitation of 82 mm (3.2 in) over about 7 days, with humidity levels at 69%. In contrast, November brings cooler temperatures, with averages dipping to a minimum of 5°C (41°F) and a maximum of 21°C (71°F), resulting in a chilly average of 15°C (59°F). This month sees significantly higher precipitation at 197 mm (7.7 in) over 15 days, and humidity rises to 81%. For more detailed insights on weather conditions, you can visit Primosten weather in November.

In September, the weather is generally warm and pleasant, with average temperatures reaching around 22°C (72°F) and highs of 29°C (85°F). The month sees moderately low precipitation, with about 82 mm (3.2 in) spread over 7 days and a humidity level of 69%. In contrast, December brings cooler temperatures, averaging only 11°C (52°F) with minimums dropping to 3°C (38°F) and maximums of 17°C (63°F). The month is significantly wetter, with 158 mm (6.2 in) of precipitation recorded over 15 days, and humidity increases to 81%. For more details, you can check Primosten weather in December.

Compare Primosten's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Primosten

As summer gives way to autumn, September in Primosten offers a delightful transition with pleasant temperatures and a refreshing seaside ambiance. While the days remain warm, averaging around 22°C (72°F), a noticeable drop in humidity and cooler nights creates a comfortable atmosphere, perfect for exploring the charming town. Rainfall is moderate, with a few days of precipitation, contrasting sharply with the typically dry summer months. This blend of warmth and mild weather makes September an ideal time for visitors looking to enjoy the beautiful scenery without the peak-season crowds. For a deeper dive into what to expect, check out Primosten Climate.