Last updated: August 21, 2025
September in Beirut, Lebanon offers a delightful blend of warm temperatures and low humidity, making it an ideal time to explore the city. With a maximum of 34°C (94°F) and an average of 26°C (79°F), the days are characterized by sunshine and warmth, while the minimum temperature hovers around 19°C (67°F) during the cooler nights. The month sees minimal rainfall, with only 5 mm (0.2 in) recorded over just 1 day, meaning outdoor activities can be enjoyed without interruption. This season's pleasant 34% humidity ensures that visitors can soak up the vibrant atmosphere of Beirut comfortably.
As summer recedes, September in Beirut ushers in a warm transition with temperatures that showcase the city's Mediterranean charm. The month begins with a pleasant minimum of 19°C (67°F), climbing to an average of 26°C (79°F), and peaking at a sizzling 34°C (94°F). These figures highlight a noticeable warmth that lingers from the summer months, making it the ideal time for sun-soaked beach days and vibrant outdoor dining. As the month progresses, the oppressive heat begins to ease, hinting at the cooler autumn days ahead. Embracing the lingering warmth while enjoying the gradual shift, September serves as a captivating bridge between summer's end and autumn's arrival.
In September, Beirut experiences a significant dip in rainfall, with only 5 mm (0.2 in) of precipitation recorded over just one day. This marks a stark contrast to the wetter months earlier in the year, particularly January and December, which see heavy downpours totaling 152 mm and 167 mm, respectively. As summer transitions to fall, September serves as a brief reprieve from the humidity of the summer months, where almost no rain is seen in July and August. With the onset of autumn, precipitation begins to rise again in October and November, hinting at a shift toward the wetter season ahead. Thus, while September remains relatively dry, it subtly signals the impending return of rain in Beirut’s climate cycle.
As summer gives way to autumn, September in Beirut, Lebanon, experiences a notable shift in humidity levels. Following the peak dryness of August, where humidity dips to a low 26%, September sees a slight rise, stabilizing around 34%. This increase signals the gradual return of moisture to the air, paving the way for the refreshing changes that October brings, with its humidity climbing to 48%. The overall pattern illustrates a seasonal transition, where the oppressive summer heat slowly yields to a more temperate climate, setting the stage for the cooler, more humid months ahead. As the year progresses, one can anticipate a return to higher humidity levels, reminiscent of the winter months, which can reach as high as 72% in December.
As summer transitions into fall, September in Beirut maintains a very high UV Index of 9, requiring caution for outdoor enthusiasts. This slight dip from August’s peak of 10 reflects the beginning of cooler weather but still demands a quick burn time of merely 15 minutes under the sun. Throughout the year, there’s a clear trend of escalating UV exposure from January's moderate levels to the extreme heights seen in June and July. As we move into the autumn months, the UV Index starts to decrease gradually, yet September’s levels remain substantially high, emphasizing the importance of sun protection. For more details on UV exposure and safety, visit Beirut UV Index.
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September in Beirut, Lebanon, boasts a delightful 350 hours of sunshine, marking a gentle transition as summer waves goodbye. Following the peak sunlight of July with a generous 415 hours, the sun’s presence begins to mellow, though September still shines brightly—outpacing the months to come. After the sultry summer, the sun-drenched days linger delightfully, making it a perfect time to enjoy the coastal beauty before the cooler months set in. Compared to the crisp, clear days of October and the gradual decline in sunlight towards winter with 322 hours, September holds on to summer’s warmth, offering a splendid blend of sunshine and moderate temperatures. This month serves as a radiant farewell to the sun-soaked days of summer, reminding residents and visitors alike of Beirut's charm.
In September, Beirut enjoys a delightful blend of sun and warmth, with an impressive 88% chance of sunny weather. This month holds onto the summer's brilliance, although it's a slight dip from the peak of 95% in August. Interestingly, as we transition from the sweltering months of July and August, September maintains a high likelihood of sunshine, indicating that the outdoor charm of the city remains vibrant. The weather gradually shifts towards autumn, but it’s still a fantastic time for sun seekers, promising plenty of opportunities to bask in the Mediterranean glow before the cooler months set in.
As summer fades into autumn, September in Beirut, Lebanon offers a gentle transition in daylight duration, with the sun gracing the city for about 12 hours each day. This marks a slight decrease from the 14 hours of daylight enjoyed during the peak summer months of June and July, creating a soft shift in the daily rhythm. After basking in the sun for the brilliance of summer, the gradual transition reflects a cooling pattern, as the city eases into the enchanting hues of fall. Following September, daylight hours will continue to wane, dropping to 11 hours in October and further diminishing as the year draws to a close. This cyclical change not only enhances the beauty of the Mediterranean landscape but also invites residents and visitors to cherish the warm, sunlit moments before winter’s embrace.
As September unfolds in Beirut, the city experiences a gentle embrace from the average wind speed of 3.1 m/s (7 mph). This marks a slight decrease from the summer months, where winds were a touch more vigorous. Compared to the more buoyant spring breeze of March at 4.1 m/s (9 mph), September's winds are softer yet still invigorating, offering a serene transition into the autumnal season. While the wind remains consistent with the patterns set by August, it's clear that as the year progresses, the winds start to calm, hinting at the quieter months ahead. Whether lounging by the Mediterranean or exploring the bustling streets, the September winds provide just the right touch of freshness against the backdrop of the vibrant city life.
Weather in Beirut varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Beirut, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a pleasant 19°C (67°F) at night to a scorching 34°C (94°F) during the day, with minimal rainfall of just 5 mm (0.2 in) and low humidity at 34%. In contrast, January experiences much cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 23°C (74°F), accompanied by significantly higher precipitation totaling 152 mm (6.0 in) over 13 days, along with a rising humidity level of 71%. For more details on winter conditions, see Beirut weather in January.
September and February present stark contrasts in weather patterns. In September, temperatures are significantly warmer, with minimums around 19°C (67°F) and maximums reaching up to 34°C (94°F), accompanied by low humidity at 34% and minimal precipitation of just 5 mm over the course of a single day. In sharp contrast, February experiences much cooler conditions, with average temperatures hovering around 13°C (56°F), and maximums only reaching 23°C (74°F). Additionally, February sees a considerable increase in rain, recording 102 mm over approximately 10 days, and a higher humidity level at 67%. For more detailed insights, you can check out Beirut weather in February.
When comparing the weather in September and March, there is a notable contrast in temperature and precipitation. In September, the temperatures range from a minimum of 19°C (67°F) to a maximum of 34°C (94°F), with an average of 26°C (79°F) and very little rainfall, only about 5 mm over a single day. The humidity is relatively low at 34%, contributing to the warm and dry conditions typical of late summer.
In contrast, March experiences much cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 29°C (85°F), averaging around 14°C (58°F). This month also sees significantly more precipitation, totaling 106 mm over 11 days, and higher humidity levels at 62%. These factors combined make March feel much wetter and cooler than September. For more detailed information, you can visit Beirut weather in March.
In September, weather tends to be warmer with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 34°C (94°F), averaging around 26°C (79°F). The month is characterized by low precipitation, only about 5 mm (0.2 in) over just one day, and a humidity level of 34%. In contrast, April offers cooler temperatures, with a range from 8°C (47°F) to 29°C (85°F), averaging 18°C (64°F). This month experiences significantly higher precipitation at 49 mm (1.9 in) over approximately eight days and a higher humidity rate of 47%. For a more detailed look at April weather, you can visit Beirut weather in April.
September and May exhibit distinct weather patterns, reflecting the transition from summer to fall. In September, temperatures range from a minimum of 19°C (67°F) to a maximum of 34°C (94°F), with an average of 26°C (79°F) and only a single day of precipitation totaling just 5 mm (0.2 in) and low humidity at 34%. Conversely, May features cooler conditions, with temperatures starting at a minimum of 14°C (57°F) and reaching a peak of 33°C (92°F) for an average of 22°C (72°F). It experiences more rainfall, totaling 15 mm (0.6 in) over about four days, and higher humidity at 46%. The shift in temperature and moisture levels highlights the unique characteristics of each month. For more details, you can check Beirut weather in May.
In September, the weather is generally warmer than in June, with average temperatures reaching 26°C (79°F) compared to June’s average of 24°C (76°F). The maximum temperature in September can soar up to 34°C (94°F), while June peaks at 32°C (90°F). Both months experience low precipitation, with September receiving 5 mm over 1 day and June also recording 5 mm but over 2 days. Interestingly, both months share the same humidity level of 34%, providing a consistent feel in that regard. For a more detailed look into June's weather, you can check Beirut weather in June.
In comparing the weather between September and July, we see some interesting contrasts. September experiences a slightly lower minimum temperature of 19°C (67°F) compared to July's minimum of 22°C (72°F), although both months have similar average temperatures, with September averaging 26°C (79°F) and July at 27°C (81°F). The maximum temperatures are comparable as well, with July peaking at 35°C (95°F) and September reaching 34°C (94°F). While both months have low precipitation, July has no recorded rainy days with just 2 mm (0.1 in) of rain, compared to September's 5 mm (0.2 in) over just one day. Humidity levels in both months are fairly similar, with September at 34% and July at 33%. For more detailed information, check out this link: Beirut weather in July.
In comparing the weather between September and August, September experiences slightly lower temperatures overall, with a minimum of 19°C (67°F) and an average of 26°C (79°F), compared to August's minimum of 23°C (73°F) and an average of 27°C (82°F). The maximum temperatures are also comparable, with September reaching up to 34°C (94°F) versus August's peak of 33°C (92°F). Precipitation is minimal in both months, but September sees a small increase, receiving 5 mm (0.2 in) over 1 day, while August records just 3 mm (0.1 in) with no rainy days. Additionally, September has a slightly higher humidity level at 34%, compared to August's 26%. For more details on August weather patterns, visit Beirut weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 19°C (67°F) and an average of 26°C (79°F), peaking at 34°C (94°F). The month experiences minimal rainfall, with only 5 mm (0.2 in) over just one day and low humidity at 34%. In contrast, October sees a slight drop in temperatures, ranging from a minimum of 15°C (60°F) to an average of 23°C (75°F) and a maximum of 33°C (91°F). However, it brings increased precipitation, totaling 31 mm (1.2 in) across three days, along with higher humidity levels at 48%. For more detailed information, you can check Beirut weather in October.
September typically boasts warmer temperatures, with minimums around 19°C (67°F) and maximums reaching up to 34°C (94°F). Unlike September, November sees significantly cooler temperatures, with averages dropping to 19°C (67°F) and maximums of 29°C (84°F). Additionally, September experiences low precipitation, averaging just 5 mm (0.2 in) over a single day, while November is much wetter, with 52 mm (2.0 in) across eight rainy days, leading to a noticeable increase in humidity from 34% in September to 61% in November. For more detailed insights on November weather, you can visit Beirut weather in November.
September weather is characterized by warm temperatures, with an average of 26°C (79°F) and maximum highs reaching up to 34°C (94°F). The month sees minimal precipitation, totaling only 5 mm (0.2 in) over just one day, and the humidity remains relatively low at 34%. In contrast, December experiences a significant drop in temperatures, averaging 15°C (60°F) with a minimum of 8°C (47°F) and a maximum of 28°C (82°F). This month is also marked by increased precipitation, totaling 167 mm (6.6 in) over 13 days, and higher humidity levels at 72%. For more detailed weather insights, you can check Beirut weather in December.
As summer transitions into fall, September in Beirut offers a delightful respite from the intense heat of the preceding months. With maximum temperatures reaching around 34°C, the average warmth settles comfortably at 26°C, making it an ideal time for outdoor activities before autumn arrives. The minimal precipitation—with just a single rainy day and only 5 mm recorded—ensures that the month remains predominantly dry, complemented by a pleasant humidity level of 34%. This makes September uniquely inviting compared to the sweltering July and August, creating a perfect opportunity to explore the vibrant city or relax on its beautiful shores. For more detailed insights into the weather, check out Beirut Climate.