Last updated: January 18, 2025
The climate of Boumerdes, Algeria, is characterized by a Mediterranean climate (Koppen-Geiger classification Csa), featuring hot, dry summers and mild, wetter winters. Average annual temperatures hover around 19°C (66°F), with seasonal extremes ranging from a minimum of 3°C (37°F) in February to scorching heights of 41°C (106°F) in August. This variability creates a unique environmental tapestry that influences local ecology, agricultural practices, and daily life in the region.
In Boumerdes, Algeria, temperature patterns demonstrate a clear seasonal progression, with mild winters and sweltering summers. The year begins with January temperatures dipping to a minimum of 3°C (37°F), gradually rising to 13°C (55°F) by February, and peaking around 29°C (84°F) in November. Spring heralds a warming trend, as average temperatures ascend from 14°C (58°F) in March to 19°C (67°F) in May. The summer months of June to August bring peak heat, with average highs soaring to 41°C (106°F) in August, while the minimum temperatures also rise appreciably. As autumn arrives, temperatures begin to cool, with September still exhibiting warmth at 25°C (77°F), before dropping to a more temperate 20°C (69°F) by October. This seasonal rhythm not only defines the local climate but also significantly influences the region's agricultural cycles and lifestyle.
Dellys experiences a diverse climate with a minimum temperature of 7°C (44°F) in January, rising to a maximum of 33°C (93°F) in August. This variation highlights the seasonal changes that characterize the region's weather throughout the year. For further details on the monthly temperatures in Dellys, you can refer to the link: monthly temperatures in Dellys.
Boumerdes, Algeria, experiences a pronounced seasonal distribution of precipitation, with the majority of rainfall occurring during the winter and early spring months. January stands out as the wettest month, receiving 87 mm (3.4 in) of rainfall over approximately 10 days, followed closely by November with 135 mm (5.3 in) across 13 days. This pattern indicates the region’s dependency on winter precipitation, critical for replenishing water sources after the dry summer months. February and March also contribute notable totals with 43 mm (1.7 in) and 78 mm (3.1 in), respectively, thus supporting the transition into spring.
As the summer approaches, the frequency and volume of rainfall drastically decrease, with minimal precipitation recorded in June, July, and August—often amounting to less than 5 mm (0.2 in) across summer months, signifying a stark contrast to the preceding wet season. The autumn months see a gradual increase in rainfall again, particularly in October with 46 mm (1.8 in), and a modest resurgence in September at 32 mm (1.3 in). This cyclical trend underscores Boumerdes' predominantly Mediterranean climate, where seasonal wet and dry patterns play a crucial role in shaping the region's ecology and agricultural practices.
In Boumerdes, Algeria, sunshine duration exhibits a compelling seasonal trend, characterized by a steady increase from winter to summer. Starting the year with 217 hours of sunshine in January, locals experience a gradual uptick as daylight hours lengthen; February sees 275 hours, followed by an impressive 326 hours in March. By April, this upward trajectory culminates in 343 hours, and May reaches a peak with 386 hours. The arrival of summer brings even more sunshine, with June recording 394 hours and July shining brightly at 405 hours, establishing these months as the sunniest period of the year.
As summer gives way to autumn, sunshine hours slightly decline, but the months remain relatively bright compared to winter. August still boasts 380 hours of sunshine; however, September marks the beginning of a noticeable drop to 327 hours. By October, the duration decreases further to 319 hours, and November and December conclude the year with 271 hours and 269 hours, respectively, as shorter days return. This seasonal variation emphasizes Boumerdes' characteristic Mediterranean climate, where abundant sunlight in the summer fosters vibrant outdoor activities and agricultural productivity, contrasting sharply with the more subdued daylight of the winter months.
The UV Index in Boumerdes, Algeria, illustrates a significant increase in ultraviolet radiation as the year progresses, especially during the summer months. Beginning with a moderate UV Index of 3 in January and 5 in February, individuals can expect a burn time of approximately 30 minutes before skin damage occurs. However, as the season shifts into spring, the UV Index climbs sharply, reaching 7 in March and escalating to 8 by April, indicating very high exposure levels with reduced burn times of just 15 minutes. May further intensifies this trend, boasting a UV Index of 10 as summer nears, signaling the necessity for increased sun protection.
Summer brings the highest UV Index readings, peaking at an extreme 11 in both June and July, where the burn time is reduced to a mere 10 minutes. Although August experiences a slight decline to 9, it remains within the very high category with a burn time of 15 minutes. As autumn approaches, the UV Index gradually decreases, dropping to 8 in September and finally to 6 by October, transitioning back to more moderate levels (4 in November and 3 in December). This annual cycle underscores the importance of vigilant sun safety practices, particularly during the intense sunlight months from April to August, to prevent harmful effects from prolonged UV exposure.
UV Risk Categories
Daylight duration in Boumerdes, Algeria, reveals a clear seasonal cycle, with a gradual increase in sunlight hours from winter to summer. Starting with about 9 hours of daylight in January, the days lengthen steadily as spring approaches, reaching 10 hours in February and 11 hours in March. This trend accelerates during April and May, where daylight extends to 13 hours and 14 hours, respectively. By June, the longest days of the year are experienced, maintaining 14 hours of daylight as summer peaks, providing ample opportunities for outdoor activities and agricultural practices.
As summer transitions into autumn, daylight hours begin to taper off. July continues to boast 14 hours of sunlight, but this decreases slightly in August to 13 hours and further diminishes to 12 hours in September. October and November experience shorter days, with each month offering 11 hours and 10 hours, respectively. By December, daylight returns to 9 hours, mirroring the duration observed at the beginning of the year. This cyclical pattern underscores the Mediterranean climate of Boumerdes, influencing local rhythms of life and seasonal activities throughout the year.
Dellys, Algeria experiences a Mediterranean climate characterized by mild, wet winters and hot, dry summers. January temperatures range from a minimum of 7°C (44°F) to a maximum of 19°C (67°F), while July sees much warmer temperatures, with lows around 22°C (71°F) and highs reaching 32°C (90°F). Precipitation is highest in November (193 mm) and January (116 mm), while June and July are notably dry, receiving only 9 mm and 1 mm respectively. The region enjoys abundant sunshine, particularly in the summer months, peaking at 409 hours in July. For more details, visit Dellys climate.
In conclusion, the climate of Boumerdes, Algeria, features distinct seasonal patterns that significantly influence the region's environmental dynamics and daily life. With a Mediterranean climate marked by warm to hot summers and mild winters, the city experiences a rich interplay of temperature, precipitation, sunshine duration, UV Index, and daylight hours throughout the year. The marked increase in sunshine and UV levels during the summer highlights the importance of sun safety, while the seasonal variations in precipitation inform agricultural practices and water resource management. Together, these climate factors create a vibrant framework that shapes the ecological and cultural landscape of Boumerdes, underpinning the resilience and adaptability of its communities as they navigate the rhythms of nature.