Nairobi is a remarkably pleasant year-round destination thanks to its high altitude (1,795m), which keeps temperatures moderate and avoids the tropical heat found at lower elevations. The best months to visit are January–February and July–September — periods that fall in Kenya's dry seasons, offering blue skies, minimal rainfall and ideal conditions for day trips to Nairobi National Park and onward safaris.
Nairobi is a remarkably pleasant year-round destination thanks to its high altitude (1,795m), which keeps temperatures moderate and avoids the tropical heat found at lower elevations. The best months to visit are January–February and July–September — periods that fall in Kenya's dry seasons, offering blue skies, minimal rainfall and ideal conditions for day trips to Nairobi National Park and onward safaris.
Dry Seasons: January–February and July–September
These months represent Nairobi's most comfortable and reliable weather windows. Temperatures settle at 20–26°C during the day, evenings are pleasantly cool (12–15°C), and the risk of disruption from rain is minimal. The Nairobi National Park — which borders the city's southern edge — offers excellent game viewing during dry periods as wildlife concentrates along the Athi River and its tributaries. July through September coincides with the Great Wildebeest Migration in the Masai Mara (4–5 hours away), making Nairobi an ideal transit hub for combining a city experience with a Mara safari.
Long Rains (March–May): Quieter, Greener
The long rains bring daily afternoon showers that rarely last more than an hour or two. The city remains fully operational and the Nairobi National Park becomes dramatically green, attracting resident and migratory bird species in exceptional variety. Hotel rates drop 20–30% from peak, and the city has more breathing room. The lush landscape makes for beautiful photography of wildlife against green backgrounds — a very different aesthetic from dry-season golden grass. The main consideration is that Masai Mara bush tracks can become impassable in heavy rain.
Short Rains (October–November): Variable
October and November are Nairobi's "short rains" — unpredictable, often brief showers that alternate with warm, sunny periods. October is frequently one of Nairobi's most pleasant months overall, with temperatures warming pleasantly and the rains less reliable than in April–May. The November transition back to dry season can be ideal for city visits combined with early coastal trips as the northeast monsoon brings dhow sailing to Lamu.
Key Events
The Nairobi International Show (September/October at the Jamhuri Showground) is Kenya's premier agricultural and trade exhibition. The Koroga Festival (multiple dates) is a popular outdoor music festival held in a private park setting. The Safari Rally Kenya (June, WRC championship round) brings international motor racing through Kenya's roads and countryside. The Magical Kenya Open golf tournament (European Tour, March) takes place at the Muthaiga Golf Club — one of Africa's finest colonial-era clubs.
Practical Notes
Nairobi's afternoon traffic (4–7pm) is one of East Africa's worst — allow significantly more time for any journey across the city during these hours. The Jomo Kenyatta International Airport (JKIA) to the Westlands/Karen/Gigiri hotel district takes 30–60 minutes depending on traffic; arrange hotel transfers rather than using informal taxis at arrivals. Nairobi's altitude means UV exposure is higher than at sea level — sun protection is needed year-round.