Last updated: January 18, 2025
The Najran Region of Saudi Arabia exhibits a BWh climate classification, characterized by its arid and hot conditions. Temperatures fluctuate significantly throughout the year, with a minimum of 0°C (32°F) recorded in January, soaring to an average of 25°C (77°F) over the warmer months. During the peak summer month of August, the region experiences extreme heat, with maximum temperatures reaching 40°C (104°F). This climate profoundly influences the local ecosystem and human activity, shaping agricultural practices and daily life in this unique desert environment.
In the Najran Region of Saudi Arabia, temperature patterns display a clear seasonal progression marked by distinct fluctuations throughout the year. January begins with cooler conditions, featuring minimum temperatures dropping to 0°C (32°F), gradually rising as winter transitions to spring. By March, daytime averages increase, reaching around 23°C (74°F), and maxima climb to 35°C (95°F) by late spring in April. The region experiences its peak heat during the summer months of June and July, where average temperatures hover around 30°C (87°F) to 31°C (88°F), and maximums soar to 40°C (104°F). As autumn approaches, September sees a slight cooling trend, with average temperatures dipping back to 28°C (84°F), while November brings cooler nights and comfortable averages around 20°C (69°F). By December, temperatures continue to decline, highlighting the region's characteristic contrast between extreme summer heat and milder winter conditions.
Najran experiences a significant temperature range throughout the year, with January temperatures dropping to a minimum of 0°C (32°F) and soaring to a maximum of 40°C (104°F) in August. For detailed monthly temperature information, refer to monthly temperatures in Najran.
The Najran Region of Saudi Arabia is characterized by extremely low precipitation, typical of its arid desert climate. January sees no rainfall, while February records a mere 2 mm (0.1 in), which gradually increases to 10 mm (0.4 in) by April and further to 11 mm (0.4 in) in May. This slight uptick coincides with the transition to the warmer months but remains insufficient for significant vegetation growth. Notably, there are few rainy days each month, with April being the most active, featuring only three days of rain.
The summer months are particularly dry, with not a drop of rain recorded in June, while July experiences a brief respite with 9 mm (0.3 in) of precipitation over just one day. August sees a return to dry conditions, and both September and October contribute minimal rainfall, amounting to 1 mm (0.0 in) and 2 mm (0.1 in), respectively. Interestingly, the months of November and December also result in zero precipitation, further emphasizing the region's overall dryness and the challenges posed to water availability and agriculture in this environment.
In the Najran Region of Saudi Arabia, sunshine duration reveals a clear seasonal pattern, showcasing a significant increase as the year progresses. Starting with 266 hours of sunshine in January, the hours steadily rise each month, reaching 301 hours in February and peaking at 344 hours in March. The trend continues into spring with 338 hours in April and 352 hours in May, culminating in the summer with 354 hours in June. Notably, the prolonged daylight during these months fosters an atmosphere of warmth and vibrancy, characteristic of the region's sunny disposition.
As summer transitions into fall, the sunshine hours remain substantial, only slightly decreasing to 347 hours in July and 339 hours in both August and September. This relatively consistent level of sunshine underscores the region's persistent clarity and warmth. The decline continues into October with 341 hours, followed by a gradual reduction in November and December, recording 319 hours and 327 hours, respectively. Overall, the Najran Region experiences abundant sunshine, particularly from spring through summer, making it a defining feature of its climate and an essential factor for agriculture and daily life.
The UV Index in the Najran Region of Saudi Arabia is a crucial factor influencing outdoor activities and health throughout the year. Beginning in January, the UV Index registers a high level of 10, categorized as "very high," with a burn time of just 15 minutes. As the year progresses, the UV Index aggressively rises, hitting peaks of 12 and 14 from February through April, categorized as "extreme," which reduces permissible sun exposure time to only 10 minutes. This alarming level of UV radiation necessitates precautionary measures, particularly for those engaging in outdoor activities during these months.
The trend of high UV exposure continues into the summer, with the UV Index stabilizing around 12 and 13 from May to September, maintaining "extreme" exposure levels and the short burn time of 10 minutes. This pattern is interrupted only by a reduction in October, where the UV Index drops back to 12, before decreasing to 10 in November and 9 in December, classifying them as "very high" once again. These readings underscore the importance of sun protection measures, as prolonged exposure during peak UV Index months can significantly increase the risk of skin damage and related health concerns.
UV Risk Categories
In the Najran Region of Saudi Arabia, daylight duration exhibits a relatively stable pattern throughout the year. Both January and February experience about 11 hours of daylight, providing consistent light during the cooler winter months. As spring approaches in March, daylight gradually increases to 12 hours, which is maintained through April and May, allowing for longer periods of sunlight and activity in the environment. This moderate extension of daylight serves to enhance the vibrancy of the region as it transitions from winter to early summer.
As the summer months roll in, daylight reaches its peak at 13 hours in June and July, providing ample lighting for outdoor activities and promoting a lively atmosphere. However, this longer daylight duration begins to taper off in August, returning to 12 hours. Following this, the pattern stabilizes back to 11 hours in October, November, and December, signifying a return to the shorter days characteristic of winter. Overall, the Najran Region enjoys a well-distributed daylight pattern that significantly influences daily life and agricultural practices throughout the seasons.
Najran, Saudi Arabia experiences a hot desert climate characterized by extreme temperature variations throughout the year. January temperatures range from a chilly 0°C to a warm 32°C, with averages peaking at 17°C. The summer months, particularly July and August, see maximums reaching 40°C, while rainfall remains minimal, totaling just a few millimeters, predominantly in spring. The region enjoys abundant sunshine, especially in the summer, with June boasting the highest hours at 354. For more detailed insights, visit Najran climate.
In conclusion, the Najran Region of Saudi Arabia exemplifies a uniquely arid climate with distinct seasonal characteristics that significantly influence its environmental and societal dynamics. With marked variations in temperature, precipitation, sunshine duration, UV Index, and daylight duration, the region presents a challenging yet vibrant landscape. The extended periods of sunlight and high UV levels, particularly in the summer months, necessitate awareness of health and safety while engaging in outdoor activities. Understanding these climatic nuances is essential not only for residents and visitors but also for planning agricultural practices and effectively managing resources in this captivating desert environment.