Last updated: August 21, 2025
September in Algiers, Algeria brings a blend of summer's warmth and the initial hints of autumn. With maximum temperatures soaring to 37°C (99°F), the days remain hot, but the average temperature sits comfortably at 25°C (77°F). Nighttime cools down to a minimum of 16°C (61°F), offering a refreshing reprieve. Rainfall is minimal, with just 24 mm (0.9 in) over 4 days, while humidity stands at a moderate 65%, making for a pleasantly warm and inviting atmosphere. Whether exploring historical sites or savoring local cuisine, September's weather in Algiers ensures a delightful experience.
In September, Algiers experiences a transition from the sultry summer heat to the milder temperatures of autumn. The month features a minimum temperature around 16°C (61°F), providing a comfortable start to the season, while the average hovers at a pleasant 25°C (77°F). As the days progress, the maximum temperature can reach up to 37°C (99°F), a lingering reminder of the summer sun. This gradual shift sets the stage for outdoor activities, making September an ideal time to explore the vibrant culture and stunning landscapes of Algeria before the cooler autumn months set in.
In September, Algiers experiences a noticeable uptick in precipitation as the summer heat begins to wane, with an average rainfall of 24 mm (0.9 in) over 4 days. This marks a modest increase from the preceding months of July and August, which are characterized by minimal rainfall. The transition into autumn brings a refreshing change, as precipitation starts to build up, paving the way for the more significant rains of October and November, when the city sees a dramatic spike in wet days and total precipitation. This pattern reflects the Mediterranean climate, where September serves as a bridging month, gently signaling the end of the dry spell and setting the stage for the lush, verdant landscapes of autumn.
As summer gives way to autumn, September in Algiers experiences a slight uptick in humidity, reaching 65%. This marks a subtle rebound from the lower levels observed in the peak summer months of July and August, where humidity rested at 59%. The transition into September heralds the gradual return of moisture to the air, a precursor to the higher humidity of the coming months, with October and November both settling around 72%. Overall, the monthly trend illustrates a natural ebb and flow of humidity in Algiers, where the sultry summer months slowly yield to the more comfortable, yet still humid, conditions of autumn.
In September, Algiers experiences a UV Index of 8, categorized as very high, with a burn time of just 15 minutes when unprotected. This marks a slight decrease from the extreme levels seen in June and July, which had indexes reaching 11 and 10 respectively. However, it remains crucial for sun-seekers to remain cautious, as the UV levels are still significant. Following a summer of intense UV exposure, September ushers in the onset of autumn, yet the sun's intensity remains formidable. Planning outdoor activities with proper sun protection is essential during this month to ensure safety and enjoyment under the bright Algerian sky. For more detailed information, visit Algiers UV Index.
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In September, Algiers basks in an impressive 328 hours of sunshine, marking a gentle transition from the peak summer brilliance of 405 hours in July. As the city shifts into fall, sunlight begins to wane, yet the warmth remains inviting, making it a splendid time for outdoor adventures. This month sees a notable decrease in daylight compared to the sun-drenched summer months, yet it still outshines the earlier parts of the year, such as January's 221 hours. With September stepping down from the summer highs, it still holds a charming glow, perfectly bridging the vibrant summer to the milder autumnal days ahead.
In Algiers, September presents a 56% chance of sunny weather, marking a transition from the peak summer months where sunshine reigns supreme. The likelihood of clear skies shows a slight dip from August's 73%, yet remains higher than the spring months. This trend highlights a gradual shift as summer begins to fade, but September still offers ample opportunities for sunlit days. Interestingly, as temperatures cool and autumn approaches, the chances of sunny weather in October rise again, reaching 59%. Thus, while September signals the end of summer, it still holds its own in providing enjoyable, sun-filled days.
As summer transitions into fall, September in Algiers experiences a gentle decrease in daylight, offering around 12 hours of sunlight. This marks a gradual shift from the long, sun-soaked days of July and August, which basked in 14 hours of daylight, to the shorter, cozy days of October, where daylight dips to 11 hours. The month of September serves as a bridge, combining the warmth of the lingering summer sun with the youthful hints of autumn. With daylight still plentiful, Algiers invites residents and visitors alike to enjoy outdoor activities while embracing the seasonal changes that lie ahead.
As September arrives in Algiers, the average wind speed gently hovers around 3.4 m/s (8 mph), marking a slight increase from the summer months. This transition brings a breath of fresh air after the warmer season, where the winds were notably calm at 3.2 m/s (7 mph) in both July and August. The mild boost in wind speed creates a refreshing atmosphere, easing into autumn. As we look ahead, this trend of variability is mirrored in the coming months, with wind speeds expected to climb again in November to a brisk 5.0 m/s (11 mph). This fluctuation subtly signals the dynamic rhythm of Algiers' climate as it shifts from warm summer days to the cooler, breezier conditions of fall.
Weather in Algiers varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Algiers, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 37°C (99°F), with an average of 25°C (77°F), while the humidity stands at 65%. Precipitation is relatively low, with only 24 mm (0.9 in) falling over about 4 days. In stark contrast, January experiences cooler weather with temperatures fluctuating between a minimum of 5°C (42°F) and a maximum of 22°C (72°F), averaging 12°C (54°F). This month tends to be wetter, receiving 79 mm (3.1 in) of rain over about 10 days and a higher humidity of 77%. For more detailed information, visit Algiers weather in January.
September's weather is characterized by warmer temperatures, with averages reaching 25°C (77°F) and highs soaring up to 37°C (99°F). In contrast, February experiences much cooler conditions, with average temperatures around 13°C (56°F) and a maximum of 26°C (79°F). Septembers are relatively dry with only 24 mm of precipitation over about 4 days, while February sees increased rainfall of 36 mm over 6 days, resulting in higher humidity levels at 74%. For more detailed information on February weather, you can check Algiers weather in February.
September and March present quite different weather characteristics. In September, temperatures soar with a minimum of 16°C (61°F) and an average of 25°C (77°F), peaking at a maximum of 37°C (99°F). Precipitation is relatively low at 24 mm (0.9 in), occurring across only four days, and humidity stands at 65%. In contrast, March experiences much cooler temperatures, with a minimum of 7°C (45°F) and an average of 15°C (59°F), reaching a maximum of 26°C (79°F). Rainfall in March is significantly higher at 69 mm (2.7 in), spread over nine days, and humidity is slightly elevated at 71%. For a detailed look at March weather, visit Algiers weather in March.
When comparing the weather in September and April, it’s clear that September tends to be warmer and drier. In September, temperatures range from a minimum of 16°C to a maximum of 37°C, with an average of 25°C, while April experiences cooler temperatures, ranging from 7°C to 29°C and averaging 16°C. Additionally, September sees only 24 mm of rainfall over 4 days, contrasting with April's wetter conditions, which bring 63 mm of precipitation over 9 days. Despite June being slightly less humid at 65%, April maintains a higher humidity level at 68%. For more detailed insights, check out Algiers weather in April.
September and May present distinct weather patterns. In September, temperatures typically range from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), with an average temperature of 25°C (77°F). The month experiences relatively low precipitation, averaging 24 mm (0.9 in) over four days, while humidity sits at around 65%. In contrast, May features cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 35°C (95°F), averaging 20°C (68°F). Although May sees slightly higher precipitation at 30 mm (1.2 in) over four days, the humidity remains similar at 64%. For more details, refer to Algiers weather in May.
September typically experiences warmer temperatures compared to June, with average highs reaching up to 37°C (99°F) compared to June's maximum of 35°C (95°F). The minimum temperatures are slightly higher in September, averaging 16°C (61°F) versus June’s 15°C (59°F). Additionally, September brings more precipitation, with 24 mm (0.9 in) over four days, while June has less rain at 11 mm (0.4 in) across just two days. Humidity levels are also slightly higher in September at 65%, compared to June's 61%. For more detailed weather information, you can check Algiers weather in June.
When comparing the weather in September to that of July, notable differences emerge in temperature, precipitation, and humidity. September experiences a slightly lower average temperature, with a minimum of 16°C (61°F) and a maximum of 37°C (99°F), while July averages a bit warmer, with a minimum of 19°C (66°F) and a maximum of 38°C (101°F). In terms of precipitation, September sees more rainfall, totaling 24 mm (0.9 in) over 4 days, whereas July is notably dry, receiving only 1 mm (0.0 in) with no rainy days. Additionally, humidity levels are higher in September at 65% compared to July's 59%. For a detailed overview of July weather, you can visit Algiers weather in July.
In comparing the weather of September to that of August, September tends to experience slightly cooler temperatures, with a minimum of 16°C (61°F) and an average of 25°C (77°F), compared to August, which has a minimum of 20°C (69°F) and an average of 28°C (82°F). Additionally, September sees a maximum temperature of 37°C (99°F), lower than August's peak of 39°C (102°F). Precipitation is more frequent in September, with 24 mm (0.9 in) over 4 days, while August has considerably less rain at only 4 mm (0.2 in) over just 1 day, making it a drier month overall. Humidity levels are slightly higher in September at 65%, compared to 59% in August, indicating a more humid atmosphere as summer transitions into fall. For more details, check out Algiers weather in August.
September brings warm temperatures, with a minimum of 16°C (61°F) and an average of 25°C (77°F), while peaking at a hot 37°C (99°F). The month sees relatively low precipitation, totaling 24 mm (0.9 in) over just 4 days, accompanied by a moderate humidity level of 65%. In contrast, October experiences cooler conditions, with a minimum temperature dropping to 10°C (50°F) and an average of 21°C (69°F), reaching a maximum of 32°C (91°F). Precipitation increases to 44 mm (1.7 in), occurring over 6 days, and humidity rises slightly to 72%. For more detailed information, see Algiers weather in October.
September tends to be warmer and drier compared to November, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 37°C (99°F) and only 24 mm of precipitation over about four days. In contrast, November experiences a significant drop in temperature, with averages between 9°C (49°F) and 29°C (84°F), and it becomes much wetter, receiving 131 mm of rain over 13 days. The humidity also increases slightly from September's 65% to November's 72%, making the air feel more humid during the latter month. For more detailed information, you can check the link: Algiers weather in November.
In September, the weather is warm and dry, with average temperatures around 25°C (77°F) and maximums reaching up to 37°C (99°F). The month experiences relatively low precipitation at 24 mm (0.9 in), falling on just 4 days, and the humidity level is a comfortable 65%. In contrast, December brings cooler temperatures, with averages dropping to 14°C (57°F) and maximums peaking at 22°C (72°F). This month is notably wetter, accumulating 89 mm (3.5 in) of rainfall over 10 days, accompanied by higher humidity levels of 76%. For more detailed information, visit Algiers weather in December.
As summer transitions to autumn, September in Algiers offers a delightful respite from the sweltering heat, making it one of the more pleasant months of the year. The average temperature is comfortably warm, striking a balance between the remnants of summer warmth and the cooler days ahead. With only a few days of rain, the humidity remains moderate, providing a welcome relief from the peak summer months. This makes September particularly appealing for outdoor activities and exploration. To learn more about how Algiers' climate evolves throughout the year, visit Algiers Climate.