Last updated: January 18, 2025
Trans Nzoia, Kenya, exhibits a Cfb Koppen-Geiger climate classification, characterized by a temperate and maritime climate. In January, temperatures dip to a minimum of 10°C (50°F), while the average hovers around a comfortable 18°C (65°F). As the season progresses into February, the region experiences a peak maximum temperature of 30°C (86°F). This climate profile underscores Trans Nzoia's unique blend of cooler temperatures and warm spells, creating a vibrant environment conducive to diverse ecosystems and agricultural productivity.
Trans Nzoia, Kenya, showcases a distinctive temperature pattern throughout the year, with notable seasonal trends. The early months, particularly January and February, feature cooler nights with minimum temperatures around 10-12°C (50-54°F) and warm daytime highs peaking at 29°C (84°F) in January and 30°C (86°F) in February. March and April maintain similar averages, though March sees a slight uptick in minimum temperatures. As the region transitions into the cooler mid-year months of May to August, nighttime temperatures stabilize around 10-12°C (51-55°F), while daytime highs decrease to between 24-27°C (75-81°F). This cooler phase culminates in July and August, where average peak temperatures soften to about 24-25°C (75-77°F). The warmth gradually returns in September, with temperatures beginning to rise again, leading into the spring months of October and November, where conditions normalize with averages of 18-27°C (64-80°F), exhibiting a continuity of minor fluctuations that characterize the region's temperate climate throughout the year.
In Kitale, the temperatures exhibit a range from a minimum of 10°C (50°F) in January to a maximum of 30°C (86°F) in February, showcasing the region's temperate climate. For more detailed information on monthly temperatures in Kitale, visit monthly temperatures in Kitale.
Trans Nzoia, Kenya, experiences a pronounced seasonal variation in precipitation, primarily influenced by its equatorial climate. The year begins with relatively low rainfall in January, totaling 35 mm (1.4 in) over just 4 days, which gradually escalates as the region moves into February and March with 55 mm (2.2 in) and 95 mm (3.8 in), respectively. April marks a significant increase in precipitation, reaching 176 mm (6.9 in) over 18 days, while May sees an even sharper peak at 239 mm (9.4 in), making it the wettest month of the year.
Following the peaks in late spring, precipitation remains substantial through the early dry season, with June, July, and August receiving 196 mm (7.7 in), 215 mm (8.5 in), and 230 mm (9.1 in) respectively. Despite this, there is a gradual decline in rainfall days, particularly in July, where it intensifies to 27 days, before decreasing to around 21 days in the subsequent months. The rainfall trends culminate in October at 203 mm (8.0 in), before tapering off to lower totals in November and December, with 126 mm (5.0 in) and 75 mm (3.0 in), respectively. This seasonal pattern not only influences local agriculture but also plays a vital role in sustaining the region’s diverse ecosystems.
In Trans Nzoia, Kenya, sunshine duration varies significantly throughout the year, showcasing a clear seasonal trend that corresponds with the changing climatic conditions. The year kicks off with a robust 278 hours of sunshine in January, gradually increasing through February to an impressive 309 hours. This upward trajectory continues into March, where the region experiences its sunniest month, boasting 337 hours of bright sunshine. The early months of the year are pivotal for agriculture, as the ample sunlight helps foster growth during the transition into the wet season.
As the year progresses into April and May, sunshine hours remain relatively stable around 309 to 321 hours, while June maintains a healthy 320 hours. Notably, from July through October, sunshine remains consistent, fluctuating between 325 and 337 hours, suggesting a balance between cloud cover and sunshine during this period. December sees a remarkable increase to 347 hours, marking an end-of-year peak that lays favorable conditions for both agriculture and outdoor activities. Overall, these patterns reflect the region's capacity to harness sunlight effectively, emphasizing the importance of these sunny months for nurturing crops and supporting local ecosystems.
Trans Nzoia, Kenya, experiences consistently high ultraviolet (UV) radiation levels throughout the year, with the UV Index frequently reaching extreme categories. January kicks off the year with a UV Index of 15, which increases to 16 in February and peaks at 17 in March. This intense radiation necessitates extreme caution, as the burn time for unprotected skin is just 10 minutes. Despite a slight decrease to 16 in April and a more significant dip to 14 in May, the region remains under extreme UV exposure, underlining the importance of sun protection during these months.
As the year progresses into the cooler mid-year months, the UV Index stabilizes around 12 in June and July, before gradually rising back to 13-14 in August, September, October, and November. By December, the UV Index holds firm at 13. Despite these fluctuations, residents and visitors must remain vigilant, as the burn time continues to remain critically short at 10 minutes. This persistent high UV exposure underscores the necessity of protective measures, such as sunscreen and clothing, to mitigate health risks associated with excessive sunlight exposure throughout the year.
UV Risk Categories
Trans Nzoia, Kenya, enjoys a remarkable consistency in daylight duration throughout the entire year, with each month offering approximately 12 hours of daylight. This steady rhythm is characteristic of equatorial regions, where the tilt of the Earth's axis results in minimal variation in light exposure. As a result, residents benefit from a reliable day-night cycle, which supports various activities, including agriculture, business, and recreational pursuits.
The unchanging daily sunlight presents unique opportunities for farming, allowing crops to thrive under ample daylight conditions. Such predictability fosters a stable environment for both wildlife habitats and human lifestyles, contributing to the overall ecological balance. In Trans Nzoia, the 12-hour daylight pattern not only influences agricultural practices but also enhances the quality of life, promoting outdoor engagements and community activities year-round.
Kitale, Kenya experiences a temperate climate characterized by mild temperatures and significant rainfall. Average temperatures range from a low of 10°C (50°F) in January to a maximum of 30°C (86°F) in February. Precipitation peaks from March to September, reaching up to 266 mm (10.5 in) in September, while sunlight is abundant, with December receiving up to 347 hours of sunshine. This climate allows for diverse agricultural activities in the region. For more details, visit Kitale climate.
In conclusion, Trans Nzoia, Kenya, embodies a unique climatic profile characterized by consistent temperature patterns, substantial rainfall, and high UV exposure, coupled with a reliable 12-hour daylight duration throughout the year. This distinct combination of climatic conditions, including peak sunshine and intense UV levels, plays a crucial role in supporting the region’s agricultural productivity and biodiversity. The stability of daylight fosters optimal conditions for various activities, enhancing both the ecological and economic resilience of the area. As climate dynamics evolve, understanding these patterns will be essential for effective resource management and planning to ensure the well-being of the local communities and their environment.