Your holiday weather, at a glance

Kenya in September: where is it warmest?

In September, Mombasa is the warmest place with 28 °C by day, Diani Beach the coolest with 27 °C. 2 of 2 destinations have good holiday weather.

All destinations in September, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

PlaceScoreAirSeaSunRain days
Mombasa7528°26°8 h18
Diani Beach7527°26°8 h18

Kenya in September: quick answers

Kenya in September: where is it warmest?

The warmest places in September are Mombasa (28 °C) and Diani Beach (27 °C).

Kenya in September: where is the sea warmest?

The sea is warmest at Mombasa (26 °C) and Diani Beach (26 °C).

Kenya in September: where is the weather best?

The best holiday weather in September – warm, sunny and dry – is in Mombasa and Diani Beach.

Kenya month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)