Climate in Nairobi, Kenya

Nairobi, Kenya has a semi-arid climate. The annual average temperature is about 28.5°C, with around 2201 hours of sunshine; the national rainfall baseline is roughly 901 mm across 101 rainy days a year. The warmest month is Jan (highs near 36.9°C) and the coldest is Jul (lows near 20°C). These are deterministic planning estimates, not a forecast or measured station data. Temperature and sunshine follow the city's latitude; rainfall and the climate zone come from a country-level baseline that every city in the country shares (refined by region in the United States, Canada and Australia), so they do not show local differences. Check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Nairobi is classified as Semi-Arid. The classification combines the city’s own temperature range, which follows its latitude, with a rainfall pattern taken at country level for Kenya — so cities in the same country usually share a zone.

The rainfall baseline for Kenya is about 901 mm a year over roughly 101 rainy days, with the wettest month Nov and the driest Jul. This figure is not specific to Nairobi: every city in Kenya carries the same baseline, so it will not show the difference between, say, a dry inland city and a wet coastal one. Use an official meteorological service for local rainfall.

Nairobi sees an estimated 2201 hours of sunshine a year, concentrated in the warmer months around Jan.

By temperature and rainfall, the most comfortable months in Nairobi are Jul, Jun, Aug. Conditions vary year to year — verify with a current forecast before booking.

Nairobi has a climate comfort score of 59/100, a moderate year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Cape Town — Semi-Arid, comfort 79/100
• Climate in Bangkok — Tropical, comfort 64/100
• Climate in Mexico City — Semi-Arid, comfort 72/100