September Weather in Lopar, Croatia

Last updated: March 17, 2025

September in Lopar, Croatia, offers a delightful blend of warm temperatures and refreshing breezes. With maximum temperatures reaching 29°C (85°F) and an average of 20°C (69°F), it's the perfect time to enjoy the sun. However, prepare for some rain, as 171 mm (6.7 in) of precipitation falls over approximately 10 days, resulting in a humidity level of 64%. This combination of warmth and moisture creates an inviting atmosphere for both relaxation and exploration, making September a charming month to visit this picturesque destination.

September Temperature in Lopar

September in Lopar, Croatia, marks a delightful transition into early autumn, with temperatures that perfectly balance lingering summer warmth and the crispness of fall. With minimums around 10°C (50°F) and average highs reaching 29°C (85°F), visitors can still bask in the sun while enjoying pleasant evenings. The month brings an average temperature of 20°C (69°F), making it an ideal time for beachgoers to savor the Adriatic before the cooler months set in. As the days gradually shorten, the warmth of the late summer sun continues to invite outdoor activities, from swimming to hiking, ensuring that September remains one of the most enjoyable months to experience the natural beauty and charm of Lopar.

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

The chart illustrates September temperature patterns in Lopar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434648556272757768615447
Data source: Temperature data for Lopar 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 Lopar

September in Lopar, Croatia, marks a noticeable shift in weather patterns, as the average precipitation soars to 171 mm (6.7 in) over 10 days, making it one of the wettest months of the year. This significant increase contrasts starkly with the drier summer months of June, July, and August, which collectively average only 135 mm. As autumn begins, the landscape transforms, nourished by the abundant rainfall that sets the stage for the vibrant colors of fall. The uptick in precipitation serves as a reminder of nature's cyclical rhythms, paving the way for the subsequent months of even higher rainfall, particularly November, which sees 192 mm (7.6 in). This transition highlights the dynamic climate of Lopar, where the shift from summer's warmth to autumn's embrace brings both beauty and vitality to the region.

September Precipitation Trends in Lopar

The chart displays monthly precipitation patterns in Lopar, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1061429578118404451171128192230
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lopar

In September, Lopar, Croatia experiences a noticeable shift in humidity levels as summer transitions to autumn. With humidity at 64%, the air feels relatively comfortable compared to the low of 51% seen in August. This slight increase hints at the arrival of cooler temperatures and the onset of seasonal changes, yet it remains significantly lower than the winter months that follow, where humidity peaks at an average of 88% in January and December. The trend showcases a gradual return to the higher humidity typical of the colder months, creating an inviting atmosphere as nature prepares for the rich colors of fall.

September Average Humidity in Lopar

This chart illustrates the average monthly humidity levels in Lopar, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lopar

As summer fades into autumn, September in Lopar, Croatia, brings a notable shift in the UV Index, which stands at 7, placing it in the high exposure category. This indicates an increase from the moderate levels seen earlier in the year, capturing the essence of lingering sunny days. With a burn time of 25 minutes, it's a reminder to stay vigilant about sun protection as outdoor activities can still be enjoyed. The trend from the peak summer months, where the UV Index soared to 9, reflects a gentle transition, yet caution should still prevail. For more details on the UV Index and how to stay safe under the Croatian sun, check out Lopar UV Index.

Maximum UV Index Levels in Lopar for September

The chart shows the monthly maximum UV Index (UVI) for Lopar 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.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Lopar 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 Lopar

September in Lopar, Croatia, is a delightful transition from the peak summer months, basking in 340 hours of sunshine. This notable drop from the sun-soaked heights of July and August, which boast 434 and 404 hours respectively, signals the beginning of autumn while still offering plenty of delightful, sunny days. As the summer fades, sunlight starts to recede, yet September still holds on to the warmth of the season, presenting a perfect balance for those looking to enjoy the outdoors without the sweltering heat. This gentle decline continues into October, which sees 306 hours of sunshine, but September remains a crucial month to soak in those glorious sunlit moments before the year draws to a close.

Monthly Sunshine Duration in Lopar: September Highlighted

The September sunshine duration represents the total number of hours Lopar 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h239h323h359h395h422h434h404h340h306h238h228h
Data source: Lopar September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lopar During September

In September, Lopar, Croatia, enjoys a 63% chance of sunny weather, making it one of the more favorable months for sun-seekers. This trend follows a notable rise from earlier in the year, where sunshine probability was significantly lower in the depths of winter. As the summer transitions into autumn, the likelihood of bright, clear days remains relatively high, mirroring the sunshine enjoyed in August. With a gradual decline projected into October, September stands as a sweet spot for those wanting to bask in sunny days before the cooler months set in.

Percentage of Sunny Days in September in Lopar

The chart illustrates the percentage of sunny days in Lopar 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 Lopar experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%46%68%47%47%63%59%68%63%54%31%41%
Data source: Lopar September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lopar in September

As summer transitions into autumn in Lopar, Croatia, September heralds a gentle decline in daylight, offering around 12 hours of sunlight each day. This month signals the end of the vibrant long days, peaking in June and July with their impressive 15 hours. Following the high of summer, September's daylight is still generous, but it marks a shift toward shorter days, drawing focus on the soft, golden hues that characterize the early autumn landscape. As the year progresses through October and beyond, the daylight continues to wane, reflecting a cyclical rhythm that enhances the charm of Lopar's changing seasons.

Average Daylight Hours in Lopar for September

The chart illustrates the variation in daylight duration in Lopar throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 13m10h 25m11h 56m13h 30m14h 50m15h 30m15h 9m13h 58m12h 28m10h 55m9h 33m8h 50m
Data source: Lopar daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Lopar

In Lopar, Croatia, the September wind offers a gentle breeze with an average speed of 3.1 m/s (7 mph), slightly lower than the summer months. This transition towards autumn is marked by a gradual calming from the more vigorous winds of July and August, which typically peak at around 3.4 m/s (8 mph). As the year unfolds, winds start to pick up again in October, reaching 4.6 m/s (10 mph), hinting at the seasonal shift. Thus, September serves as a serene pause, where the soft winds complement the lingering warmth of summer, creating an inviting atmosphere for both relaxation and exploration.

Average September Wind Speed in Lopar

The chart displays monthly wind speed patterns in Lopar, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.13.73.73.62.63.13.43.1 m/s4.64.84.0
Data source: Lopar September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Lopar Compares to Other Months

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

September and January display striking contrasts in weather patterns. In September, temperatures range from a mild 10°C (50°F) at night to a warm 29°C (85°F) during the day, with an average of 20°C (69°F). The month experiences significant rainfall, totaling 171 mm (6.7 in) over about 10 days, accompanied by a moderate humidity level of 64%. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -7°C (20°F) and peaking at a maximum of 14°C (58°F), averaging just 6°C (44°F). Although January sees less rainfall, amounting to 106 mm (4.2 in) over 9 days, the humidity is notably higher at 88%. For a closer look at the January weather specifics, you can visit Lopar weather in January.

In comparing the weather between September and February, September offers a much warmer climate, with average temperatures around 20°C (69°F) and highs reaching up to 29°C (85°F). In contrast, February sees significantly cooler temperatures, with averages plummeting to around 8°C (47°F) and maximums not exceeding 17°C (64°F). Precipitation levels are relatively close, with September experiencing 171 mm (6.7 in) over 10 days, while February has 142 mm (5.6 in) spread over 12 days. Additionally, February tends to be more humid, with humidity levels at 82% compared to September's 64%. For a detailed look at February's weather, check out Lopar weather in February.

September and March present strikingly different weather patterns. In September, temperatures range from a mild 10°C (50°F) to a warm 29°C (85°F), with an average of 20°C (69°F). This month typically sees 171 mm (6.7 in) of precipitation over about 10 days, with a humidity level of 64%. In contrast, March experiences much colder weather, with temperatures ranging from a frigid -7°C (20°F) to a maximum of 18°C (64°F) and an average of just 9°C (49°F). Precipitation is lower at 95 mm (3.8 in) across 9 days, but humidity is slightly higher at 73%. For a detailed look at weather specifics, check out Lopar weather in March.

When comparing the weather in September and April, notable differences arise. September features a much warmer climate, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), while April's temperatures are cooler, averaging between 1°C (35°F) and 22°C (72°F). Additionally, September experiences higher precipitation levels, with 171 mm (6.7 in) over approximately 10 days compared to April's 78 mm (3.1 in) spread over 8 days. Humidity is also slightly lower in September at 64%, against April's 73%. For more specific details about the weather in April, you can visit Lopar weather in April.

When comparing the weather in September and May, September generally offers warmer temperatures, with averages around 20°C (69°F) and highs reaching 29°C (85°F). In contrast, May has cooler temperatures, averaging 17°C (62°F) and peaking at 25°C (77°F). Precipitation levels are higher in September, with about 171 mm (6.7 in) over approximately 10 days, compared to May's 118 mm (4.7 in) across 12 days. Both months experience moderate humidity, with September at 64% and May slightly higher at 70%. For more details on May weather, you can visit Lopar weather in May.

When comparing the weather in September and June, notable differences emerge. September showcases a wider temperature range, with minimums dropping to 10°C (50°F) and maximums reaching 29°C (85°F), while June consistently enjoys warmer temperatures, ranging from a minimum of 13°C (56°F) to a maximum of 31°C (88°F). Additionally, September experiences heavier precipitation, averaging 171 mm (6.7 in) over 10 days, compared to June's milder rainfall of 40 mm (1.6 in) over just 6 days. Interestingly, despite slightly higher humidity in June at 69%, September's humidity remains relatively consistent at 64%. For more detailed insights on June weather, you can visit Lopar weather in June.

When comparing the weather in September to July, several notable differences emerge. September offers cooler temperatures, with a minimum of 10°C (50°F) and an average of 20°C (69°F), whereas July is warmer, with a minimum of 17°C (63°F) and an average of 24°C (75°F). Additionally, September experiences significantly higher precipitation, totaling 171 mm (6.7 in) over about 10 days, compared to July's much lighter rainfall of 44 mm (1.7 in) across just 4 days. Humidity levels are relatively similar, with September at 64% and July slightly lower at 63%. For more detailed insights, you can check Lopar weather in July.

When comparing the weather in September to August, significant differences are evident. September experiences a cooler temperature range with a minimum of 10°C (50°F) and an average of 20°C (69°F), while August boasts warmer temperatures, starting at a minimum of 15°C (60°F) and averaging 25°C (77°F). Additionally, September sees increased precipitation, with 171 mm (6.7 in) over 10 days, compared to August's 51 mm (2.0 in) across just 4 days. Moreover, September's humidity is higher at 64%, whereas August maintains a lower humidity level of 51%. For a closer look at weather specifics for August, check out Lopar weather in August.

In September, the weather features a warmer average temperature of 20°C (69°F) with highs reaching 29°C (85°F), while the nights are milder with a minimum of 10°C (50°F). This month experiences considerable rainfall, totaling 171 mm (6.7 in) over approximately 10 days, with a moderate humidity level of 64%.

In contrast, October brings cooler temperatures, with an average of 16°C (61°F) and highs capped at 23°C (73°F). The minimum temperature dips to 8°C (47°F), and while rainfall is lower at 128 mm (5.0 in) over 9 days, the humidity rises significantly to 83%. For more detailed insights, check the Lopar weather in October.

September and November present quite a contrast in weather conditions. In September, temperatures typically range from a mild 10°C (50°F) at night to a warm average of 20°C (69°F) during the day, peaking at 29°C (85°F). The month experiences a total precipitation of 171 mm (6.7 in) over approximately 10 days, with humidity averaging 64%. In stark contrast, November sees cooler temperatures, with nighttime lows dipping to 3°C (38°F) and daytime averages hovering around 12°C (54°F), reaching a maximum of 19°C (67°F). This month is also wetter, with precipitation increasing to 192 mm (7.6 in) spread over about 13 days, and humidity rising significantly to 89%. For more specific information on November conditions, you can explore Lopar weather in November.

September and December present contrasting weather patterns, reflective of the changing seasons. In September, temperatures typically range from a minimum of 10°C (50°F) to a maximum of 29°C (85°F), with an average of 20°C (69°F). The month experiences 171 mm (6.7 in) of rainfall over approximately 10 days and maintains a humidity level of 64%. In contrast, December brings cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 16°C (61°F), averaging only 9°C (48°F). Rainfall increases to 230 mm (9.1 in) spread across about 15 days, accompanied by a higher humidity level of 88%. For more detailed information about the weather in December, you can visit Lopar weather in December.

Compare Lopar's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Lopar

As summer gracefully transitions into autumn, September in Lopar offers a delightful blend of warm temperatures and refreshing breezes. With maximum highs nearing 29°C (85°F) and an approachable average around 20°C (69°F), this month stands out for its comfortable outdoor conditions, especially when compared to the cooler, brisker days that follow. However, the increased likelihood of rain, with around 171 mm (6.7 in) of precipitation over about 10 days, introduces a refreshing element that helps green the landscape while maintaining a moderate 64% humidity. This unique climate transition makes September an ideal time for visitors looking to enjoy both sunny days and occasional rainy interludes. For more insights on the captivating Lopar weather, explore our detailed guide on Lopar Climate.