Climate and average weather in Nyahururu

Nyahururu gets about 2518 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.4 months, from around Jun 2 to Sep 12, peaking in July at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 1.

May is the wettest month by volume, with 368 mm over about 16 wet days; February is the driest, with 45 mm.

Over a full year, Nyahururu collects about 2518 mm of rain across 178 wet days — roughly 210 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 368 mm, while February is the driest at just 45 mm. The three wettest months alone bring about 43% of the year’s total.

In Nyahururu, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around December 4 and lasts for 3.9 months, ending around April 1. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 54% of the time on average.

The cloudier part of the year begins around October 1 and lasts for 2.1 months, ending around December 3. The cloudiest month is November, when it is overcast or mostly cloudy 75% of the time.

Nyahururu averages about 3 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 9 days.

The sunnier stretch runs 3.9 months, from around Dec 6 to Apr 4. The sunniest month is February, with roughly 8 sunny days (mixed).

The greyest month is July, down near 1 sunny days — about 87% fewer than the February peak.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Nyahururu, the air stays dry or comfortable essentially all year. Even in May, the muggiest month, it feels humid or worse only about 1% of the time — humidity is not something you need to plan around here.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Nyahururu is steady company: average speeds sit near 6 km/h — calm — in every month of the year, with no meaningful windy or calm season.