Last updated: August 27, 2025
September in Strunjan, Slovenia offers a delightful transition into autumn, characterized by mild temperatures. With maximums reaching 28°C (82°F) and an average of 22°C (71°F), visitors can enjoy pleasant outdoor activities. The nights cool down to a refreshing minimum of 14°C (57°F). However, this month also brings rainfall, with 171 mm (6.7 in) spread over approximately 10 days, contributing to a humidity level of 64%. Embrace the serene beauty of Strunjan as summer wanes and autumn's charm begins to unfold.
In September, Strunjan, Slovenia, experiences a delightful transition as summer begins to gracefully yield to autumn. With minimum temperatures around 14°C (57°F) and averages rising to 22°C (71°F), the weather remains pleasantly warm, perfect for exploring the region’s stunning landscapes. The maximum temperatures can soar to a lovely 28°C (82°F), allowing for lingering outdoor activities. This month marks a significant drop from the sizzling summer heat, yet it still offers a comfortable warmth, making it ideal for enjoying the natural beauty of the Slovene coast. Overall, September is a wonderful time to visit, showcasing a perfect blend of warm days and the onset of autumn's charm.
September brings a significant shift in precipitation patterns for Strunjan, Slovenia, with a substantial total of 171 mm (6.7 in) recorded over 10 days. This marks a notable increase from the preceding months, showcasing a transition into the wetter autumn season. The height of rainfall in September not only surpasses the summer months, but it also sets the stage for an even wetter October and November, hinting at the robust seasonal changes in the region. As leaves begin to turn and the air cools, the heavy downpours in September serve as a reminder of nature's cyclical rhythm, emphasizing the importance of this month in the overall climatic narrative of Strunjan.
In September, Strunjan, Slovenia, experiences a noticeable shift in humidity levels, with an average of 64%. This marks a small rise from the low of 51% in August, lifting the moisture in the air as the lingering warmth of summer begins to ebb. As autumn approaches, the humidity steadily climbs towards 83% in October, reflecting the region's transition from the dry summer months to the wetter conditions that characterize the fall. This gradual increase serves as a prelude to the high humidity of the coming winter months, which can reach upwards of 89% in November. Overall, September stands as a bridge between the warmth of summer and the brisk embrace of autumn, making it an interesting time for both the environment and those who enjoy the beauty of Strunjan.
As summer wanes in Strunjan, Slovenia, the September UV Index reflects a notable transition with a value of 7, indicating a high exposure category. This means that, while the temperature may still encourage outdoor activities, the risk of sunburn increases significantly, with a burn time of just 25 minutes for unprotected skin. Following the peak months of July and August, which boasted impressive UV levels of 9, September marks a slight decline but still requires caution. As we shift towards October, the UV Index will continue to decrease, highlighting the importance of adapting our sun protection strategies as seasonal changes unfold. For the latest UV readings, visit Strunjan UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Strunjan, Slovenia retains a commendable 326 hours of sunshine, making it a delightful month for outdoor enthusiasts. This month sees a notable dip from the blissful warmth of July and June, which boast over 400 hours, yet it still outshines the chillier months that lie ahead. The gradual decline in sunshine from the sun-soaked summer culminates in a beautifully balanced early autumn, characterized by vibrant foliage and remarkably pleasant weather. While the days grow shorter, the lingering warmth of summer continues to invite visitors to experience Strunjan’s breathtaking coastal scenery, ensuring that September remains a sparkling gem of the year.
In Strunjan, Slovenia, September showcases a favorable shift in sunny weather, boasting a 59% chance of sunshine. This marks a pleasant continuation from the bustling summer months, where August enjoys the highest likelihood of sun at 62%. As summer makes its gradual exit, September still offers a significant amount of bright days, making it an ideal time for outdoor activities and exploration. The trend of increasing sunshine from early spring, peaking in the summer and maintaining a generous percentage into September, highlights this month as a delightful bridge between the warm summer and the cooler autumn months.
As summer fades into autumn, September in Strunjan, Slovenia, experiences a gentle decline in daylight, averaging around 12 hours. This shift marks a transition from the peak summer months characterized by 15 hours of sunlight in June and July to the earlier, longer days of spring. The gradual decrease reveals a natural rhythm of light, where the days grow shorter as the year progresses toward winter. By October, daylight dips further to 10 hours, highlighting the contrast between the vibrant summer months and the tranquil approach of autumn, inviting a change in both scenery and activities.
In September, the winds in Strunjan, Slovenia, begin to hint at the approaching autumn, with an average speed of 3.4 m/s (8 mph). This gentle breeze reflects a slight dip from the more vibrant winds of May and April, where speeds reached 4.5 m/s and 4.1 m/s respectively. As summer transitions into fall, the air tends to grow calmer, but September's winds still carry the essence of summer's warmth while hinting at the cooler months ahead. The impending shift is underscored by the uptick in wind speeds recorded in October and November, where they notably rise to 5.0 m/s and 5.2 m/s. This trend suggests that while September might be a tranquil breath before the briskness of autumn, the winds are preparing for a more spirited presence in the coming months.
Weather in Strunjan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Strunjan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, the temperatures range from a mild 14°C (57°F) at night to a warm 28°C (82°F) during the day, with an average of 22°C (71°F). This month also experiences significant rainfall, totaling 171 mm (6.7 in) over about 10 days, and a moderate humidity level of 64%. In stark contrast, January is much colder, with temperatures dipping to a minimum of -3°C (27°F) and reaching a maximum of just 13°C (56°F), averaging around 7°C (46°F). Precipitation is lower in January, at 58 mm (2.3 in) over approximately 7 days, but the humidity is noticeably higher at 88%. For a more detailed look at the January weather in this region, check out Strunjan weather in January.
September and February present contrasting weather experiences. In September, temperatures generally range from a mild 14°C (57°F) at night to a warm 28°C (82°F) during the day, with an average of 22°C (71°F). This month also sees 171 mm (6.7 in) of rain over about 10 days, accompanied by a comfortable humidity level of 64%. In stark contrast, February is much cooler, with nighttime lows dipping to -3°C (27°F) and daytime highs averaging just 13°C (56°F). Rainfall is lighter at 106 mm (4.2 in) spread across 11 days, and the humidity is notably higher at 82%. For more detailed weather insights, you can visit Strunjan weather in February.
September and March present strikingly different weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), offering a pleasantly warm average of 22°C (71°F). However, this month tends to be quite wet, with 171 mm (6.7 in) of precipitation over about 10 days, and a humidity level of 64%. In contrast, March is cooler, with temperatures dropping to a minimum of -3°C (27°F) and peaking at 16°C (62°F), averaging only 10°C (50°F). March brings significantly less rainfall at 57 mm (2.3 in) across approximately 7 days, yet features a higher humidity of 73%. For more detailed insights on March weather, you can check Strunjan weather in March.
When comparing the weather in September and April, notable differences emerge. September enjoys warmer temperatures, with averages ranging from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), while April is cooler, with temperatures typically between 5°C (42°F) and 20°C (68°F). Additionally, September experiences more precipitation, totaling 171 mm (6.7 in) over about 10 days, compared to April's 86 mm (3.4 in) across 8 days. Humidity levels are higher in April at 73%, whereas September sees a lower humidity level of 64%. For more detailed insights about April weather, check out Strunjan weather in April.
Comparing the weather in September and May reveals notable differences in temperature and precipitation. In September, temperatures are warmer, ranging from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), with an average of 22°C (71°F). In contrast, May experiences cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 24°C (76°F), averaging at 17°C (64°F). Precipitation is also higher in September, totaling 171 mm (6.7 in) over 10 days, while May sees 105 mm (4.2 in) over 13 days. Humidity levels are slightly higher in May at 70%, compared to September's 64%. For more detailed information about May weather, visit Strunjan weather in May.
When comparing the weather in June and September, we see some notable differences. June typically offers slightly warmer temperatures, with minimums around 16°C (61°F) and maximums reaching up to 30°C (86°F), while September showcases a cooler range with minimums at 14°C (57°F) and maximums of 28°C (82°F). Moreover, June experiences lower precipitation levels of 68 mm (2.7 in) over about 5 days, compared to September's higher rainfall of 171 mm (6.7 in) across 10 days. Additionally, humidity levels are relatively similar, with June at 69% and September slightly lower at 64%. For a more detailed view of June’s climate, visit Strunjan weather in June.
In July, the weather is generally warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 29°C (85°F), and a lower average precipitation of 49 mm (1.9 in) over just 6 days. Humidity sits at around 63%, making for relatively comfortable summer conditions. In contrast, September experiences a wider temperature range, with minimums of 14°C (57°F) and maximums reaching 28°C (82°F), but it also brings significantly more rainfall, totaling 171 mm (6.7 in) across 10 days. Humidity remains similar at 64%, but the increased precipitation makes September feel much wetter overall. For a detailed look at July's weather, check out Strunjan weather in July.
In comparing the weather between September and August, September tends to be cooler with minimum temperatures dropping to 14°C (57°F) and an average of 22°C (71°F), while August enjoys warmer temperatures, averaging 26°C (78°F) with a maximum reaching 30°C (87°F). Precipitation is notably higher in September, accumulating 171 mm (6.7 in) over 10 days, compared to August's 58 mm (2.3 in) over just 6 days. Additionally, September is marked by higher humidity levels at 64%, whereas August experiences a more comfortable 51% humidity. For more details on August weather, you can visit Strunjan weather in August.
September typically offers warmer temperatures, with averages around 22°C (71°F) and highs reaching up to 28°C (82°F). In contrast, October sees a notable drop in temperatures, averaging 17°C (64°F), with maximums peaking at 23°C (73°F). While September can be quite rainy, accumulating 171 mm (6.7 in) of precipitation over 10 days, October features less rainfall at 100 mm (4.0 in) but experiences higher humidity at 83%. For more detailed information on October weather in Strunjan, visit Strunjan weather in October.
In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), with an average of 22°C (71°F), making it generally warm and pleasant. However, precipitation is significant, totaling 171 mm (6.7 in) over about 10 days, contributing to a humidity level of 64%. In contrast, November sees cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 19°C (67°F), averaging around 13°C (56°F). The month also experiences slightly higher precipitation, at 183 mm (7.2 in) spread over 13 days, resulting in increased humidity at 89%. This shift marks a clear transition from the warm, relatively drier days of September to the cooler, wetter conditions typical of November. For more detailed information, you can refer to Strunjan weather in November.
September typically experiences milder and warmer weather compared to December, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 28°C (82°F). In contrast, December sees much cooler temperatures, with averages dipping to 4°C (39°F) as the minimum and reaching a maximum of only 16°C (60°F). Additionally, September is characterized by higher humidity levels at 64% and more moderate precipitation of 171 mm (6.7 in) over about 10 days, while December has increased humidity at 88% and slightly lower total precipitation at 150 mm (5.9 in) over 13 days. For more detailed insights, check out Strunjan weather in December.
As September unfolds in Strunjan, the weather offers a delightful transition from the hot, sultry days of summer to the mild embrace of autumn. With average temperatures hovering around a comfortable 22°C (71°F), this month presents a welcoming warm climate, distinctly cooler than the peak summer months but still pleasantly inviting for outdoor activities. While precipitation increases, leading to about 10 days of rain, it also nurtures the lush landscapes that define Strunjan. The humidity, sitting around 64%, adds a hint of warmth to the otherwise refreshing air. For those looking to explore or unwind, September strikes a perfect balance, making it an ideal time to experience the beauty of Strunjan. For more detailed insights, visit Strunjan Climate.