Weather in Nairobi in January

Prime time. If you get to pick your dates, January is the one. Highs average 27.8 °C, lows 14.1 °C, and rain falls on 9 days — nothing in the month is working against you.

January ranks 5 of 12 in Nairobi: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain on 9 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: 5 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest January day reached 32.4 °C and the coldest night fell to 8.4 °C.

This is the volatile part. January rainfall has ranged from 5 mm to 194 mm across the twenty years measured — a 189 mm spread around an average of 39 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 12.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 63%.

How January sits in the year

Temperatures hold steady either side: 26.5 °C in December, 27.8 here, 29.2 in February. Nothing about the timing within the month matters much. Rain has already shifted: 6 days fewer than December had.

Daylight in January

Nairobi sits close enough to the equator that daylight barely moves all year — 12.2 hours in January, against a range of just 0.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 16.9 °C between the year's warmest afternoons and coldest nights. At 1684 m, altitude is doing as much work here as latitude: thinner air means fierce sun by day and heat that leaves the moment it sets.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

January in Nairobi versus nearby

If Nairobi is one option among several, the nearby comparison is worth making. Nakuru is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Kakamega is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: January works, with July the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Nairobi

See all twelve months in Nairobi, or where else to go in January.