Last updated: August 31, 2025
September in Sousse, Tunisia, offers a vibrant blend of warmth and occasional refreshing showers. With maximum temperatures reaching 38°C (101°F) and an average of 26°C (80°F), visitors can expect sunny days ideal for exploring the city’s historic sites. Nights cool down to a comfortable 18°C (64°F), perfect for evening strolls along the Mediterranean. This month sees about 51 mm (2.0 in) of precipitation spread over six days, contributing to a moderate humidity level of 68%. Embrace the last days of summer in Sousse, where warmth and culture meet along the stunning coastline.
In Sousse, Tunisia, September brings a delightful transition from the summer heat, with temperatures settling into a comfortable range. The month opens with minimums around 18°C (64°F), an inviting start for those seeking warmth without the sweltering extremes. As the days unfold, the average temperature hovers around 26°C (80°F), making it an ideal time for leisurely beach walks or exploring the city's rich history. The maximums, reaching up to 38°C (101°F), hint at lingering summer vibes, yet the increasingly pleasant evenings invite outdoor dining and nighttime strolls. September in Sousse encapsulates a blend of warm days and cooler nights, perfect for soaking in the vibrant atmosphere of this coastal gem.
September marks a significant transition in Sousse, Tunisia, as precipitation begins to rise notably after the arid summer months. Receiving 51 mm (2.0 in) of rainfall over 6 days, September stands out as the wettest month since spring, setting the stage for the cooler autumn weather. This uptick in rainfall contrasts sharply with the near-dry July and August, where the region experienced just 1 mm (0.0 in) and 18 mm (0.7 in), respectively. As summer wanes, the increase in precipitation not only replenishes the landscape but also signifies the return of vibrant life, creating a refreshing atmosphere for residents and visitors alike.
In September, Sousse experiences a humidity level of 68%, marking a return to the higher figures characteristic of the earlier months in the year. After a gradual decline through the summer, where humidity dipped to 60% in July, the trend illustrates a slight resurgence in moisture, comparable to the levels seen in January and October. This subtle uptick suggests that as the summer transitions to fall, the coastal air retains some warmth and humidity, creating a pleasantly balmy atmosphere. Overall, September's humidity contributes to the region’s vibrant Mediterranean climate, balancing warmth with a refreshing coastal breeze.
In September, Sousse, Tunisia, experiences a UV Index of 8, placing it in the very high exposure category. This level indicates a significant risk for harm from unprotected sun exposure, with a relatively quick burn time of just 15 minutes. As summer wanes, the UV Index begins to decrease, transitioning from the extreme heights of July and June, but it remains a crucial time for sun safety awareness. With a historical trend showing consistently high UV levels from April to September, visitors and residents alike should take precautions to protect their skin. For comprehensive insights into UV levels throughout the year, check out Sousse UV Index.
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As summer wanes and September arrives in Sousse, Tunisia, the sun continues to grace the region with an impressive 335 hours of sunlight. This marks a gentle decline from the sun-drenched days of July, which boasts a peak of 410 hours, and reflects the transition into autumn. While August sees a dip to 382 hours, September still retains a considerable amount of sunshine, ensuring that the warmth lingers just a little longer. This gradual shift from peak summer brightness to the more subdued rays of autumn sets the stage for pleasant days and cooler evenings, making it an ideal time to explore the beautiful coastal city and its vibrant surroundings. As the light fades into fall, the allure of Sousse remains ever bright.
September in Sousse, Tunisia, offers a 64% chance of sunny weather, making it a delightful month to enjoy the Mediterranean charm. As summer draws to a close, the probability of sunshine reveals a slight dip from the peak of 91% in August but remains higher than many earlier months. This pattern highlights an overall trend of consistent sun-soaked days throughout the summer, with only April seeing a notable downturn in sunshine, reflecting the seasonal shift. Travelers can expect pleasantly warm days in September, perfect for exploring the beautiful coastline and rich culture of this enchanting destination.
As summer gives way to autumn in Sousse, Tunisia, the daylight duration begins to gently decline in September, offering approximately 12 hours of sunlight. This transition marks a shift from the extensive daylight of the summer months, where June through August bask in 14 hours of sun, gradually tapering off to 13 hours before reaching its September peak. While September heralds the onset of cooler temperatures and shorter days, the lingering warmth of summer continues to illuminate the landscape, creating a beautiful backdrop for outdoor activities. With daylight steadily diminishing as the year progresses, from 14 hours in mid-summer to 10 hours by November, September stands out as a month where both summer's radiance and autumn's charm intertwine, inviting visitors to embrace the season's unique beauty.
As September rolls into Sousse, Tunisia, the winds begin to pick up slightly from the summer lull, averaging 3.9 m/s (9 mph). This gentle breeze offers a refreshing contrast to the stifling heat of August, which recorded the lowest wind speeds of the year at 3.3 m/s (7 mph). Throughout the year, a gradual increase in wind speed is observed as autumn approaches, peaking again in October at 4.3 m/s (10 mph). This transition not only brings a sense of relief from the summer heat but also enhances the coastal ambiance, making September an inviting month for both locals and visitors to relish the seaside charm of Sousse.
Weather in Sousse varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sousse, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 38°C (101°F) and an average of 26°C (80°F). This month also experiences higher precipitation levels, totaling 51 mm (2.0 in) over approximately 6 days. In contrast, January brings much cooler temperatures, with a minimum of 4°C (39°F), an average of 13°C (55°F), and a maximum of 26°C (79°F). January sees significantly less rainfall, just 15 mm (0.6 in) across about 3 days. Despite both months having a humidity level of 68%, the overall climate feels much different between September's heat and January's chill. For more specifics on January weather, you can check Sousse weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a minimum of 18°C (64°F) to a scorching maximum of 38°C (101°F), with an average of 26°C (80°F). The month sees around 51 mm (2.0 in) of precipitation over approximately 6 days, accompanied by a humidity level of 68%. In stark contrast, February features much cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 26°C (79°F), averaging at 14°C (57°F). This month has lower precipitation at 27 mm (1.1 in) over 5 days, and humidity is slightly lower at 67%. For more details on February weather in Sousse, you can check out Sousse weather in February.
September and March present distinct contrasts in weather conditions. September is characterized by warmer temperatures, with averages around 26°C (80°F) and peaks reaching up to 38°C (101°F), making it the tail end of summer. This month experiences about 51 mm (2.0 in) of precipitation over six days, accompanied by a humidity level of 68%. In contrast, March offers a cooler climate, with average temperatures of 15°C (59°F) and highs that typically reach 27°C (82°F). The month sees slightly lower precipitation at 45 mm (1.8 in) across eight days and a similar humidity level of 67%. For a more detailed look at March weather patterns, you can visit Sousse weather in March.
September typically features warmer temperatures, with daily averages around 26°C (80°F) and highs reaching up to 38°C (101°F), while April is cooler, averaging 17°C (63°F) with a maximum of 29°C (85°F). In terms of precipitation, September receives more rainfall, totaling 51 mm (2.0 in) over 6 days, compared to April's 25 mm (1.0 in) also spread across 6 days. Humidity levels remain quite similar in both months, with September at 68% and April at 67%. Overall, September offers a hotter and more humid climate, whereas April provides a milder, more comfortable atmosphere. For more detailed insights, check out Sousse weather in April.
September and May present distinct weather patterns, with September boasting a higher average temperature of 26°C (80°F) compared to May's average of 21°C (70°F). The minimum temperature in September is notably warmer at 18°C (64°F), while May starts cooler at 12°C (54°F). However, both months can experience similar maximum temperatures, with September reaching up to 38°C (101°F) and May peaking at 39°C (102°F). Precipitation also varies, as September sees 51 mm (2.0 in) of rain over 6 days, whereas May is much drier with only 11 mm (0.4 in) over 3 days. Humidity levels are slightly higher in September at 68%, compared to May's 65%. For more detailed insights into the weather during May, check out Sousse weather in May.
When comparing the weather in September and June, one can observe notable differences in temperature and precipitation. In September, temperatures range from a minimum of 18°C (64°F) to a maximum of 38°C (101°F), with an average of 26°C (80°F). This month experiences 51 mm (2.0 in) of precipitation over approximately 6 days, coupled with a humidity level of 68%. In contrast, June boasts slightly cooler temperatures, with a minimum of 15°C (60°F) and a maximum reaching up to 43°C (109°F), averaging at 25°C (78°F). Interestingly, June is much drier, with only 6 mm (0.3 in) of rainfall occurring over just 1 day and a lower humidity level of 63%. For more details, you can check Sousse weather in June.
In comparing the weather conditions of September and July, it's evident that July tends to be hotter, with average temperatures reaching up to 29°C (84°F) and maximums soaring to 43°C (109°F). In contrast, September has a slightly cooler average of 26°C (80°F) and a max temperature of 38°C (101°F). Additionally, July features virtually no precipitation, with only 1 mm recorded, while September experiences more rainfall, totaling 51 mm over six days, contributing to higher humidity levels of 68% compared to July's 60%. For a more detailed look at the July climate, you can refer to Sousse weather in July.
In comparing the weather conditions of September and August, it is evident that September tends to be slightly cooler and more comfortable. The minimum temperature in September is 18°C (64°F), which is 4°C lower than August's minimum of 22°C (72°F). While September has an average high of 26°C (80°F), August experiences hotter averages, peaking at 29°C (85°F). Notably, the maximum temperature in August can soar to as high as 43°C (110°F), making it significantly warmer than September's max of 38°C (101°F). Additionally, September sees more precipitation, totaling 51 mm (2.0 in) over six days, compared to August's 18 mm (0.7 in) over just three days. Humidity levels are also higher in September at 68%, compared to 61% in August. For a detailed overview of the weather in August, you can check Sousse weather in August.
September tends to be warmer, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 38°C (101°F), while October sees a cooler average, with temperatures dropping to a minimum of 13°C (55°F) and a maximum of 32°C (91°F). Precipitation levels remain comparable, with September recording 51 mm (2.0 in) over 6 days and October slightly higher at 53 mm (2.1 in) over 8 days. Despite the slight increase in rainfall, both months share similar humidity levels at 68%, making the air feel consistently humid. For more detailed information on what to expect in October, check out Sousse weather in October.
September and November present contrasting weather conditions. September boasts warmer temperatures, with a minimum of 18°C (64°F), an average of 26°C (80°F), and highs reaching up to 38°C (101°F). The month also sees more humidity at 68% and slightly higher precipitation, totaling 51 mm (2.0 in) over 6 days. In contrast, November brings cooler air, characterized by a minimum temperature of 8°C (47°F), an average of 18°C (64°F), and a maximum of 30°C (87°F). Precipitation decreases to 41 mm (1.6 in), maintaining a similar frequency of 6 rainy days, while humidity slightly lowers to 65%. For a detailed overview of conditions in November, visit Sousse weather in November.
September and December showcase a striking contrast in weather patterns. In September, the temperatures range significantly, with a minimum of 18°C (64°F) and a maximum reaching up to 38°C (101°F), leading to an average of 26°C (80°F). The month is characterized by higher humidity levels at 68% and a total precipitation of 51 mm (2.0 in) over about six days. In contrast, December brings cooler conditions, with a minimum temperature of 5°C (42°F) and a maximum of 23°C (74°F), averaging only 14°C (58°F). Precipitation is notably lower at 19 mm (0.7 in) across five days, and humidity slightly decreases to 67%. For more details, visit Sousse weather in December.
As summer transitions to autumn, September in Sousse offers a delightful blend of warmth and occasional respite from the heat. Unlike the peak summer months, when temperatures soar well above 38°C, September presents a more moderate average temperature around 26°C, making it a comfortable time for beachgoers and outdoor enthusiasts. While humidity remains relatively high at 68%, the month also experiences a slight uptick in precipitation, with an average of 51 mm spread over about 6 days, providing much-needed relief to the sun-soaked landscape. Overall, September strikes a perfect balance between lingering summer vibes and the welcoming embrace of autumn, making it a superb choice for travelers. For a deeper dive into Sousse's weather patterns, check out Sousse Climate.