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Ruiru in September sees high temperatures, with highs around 26°C (79°F) and overnight lows of 14°C (57°F). It's the driest month of the year, with very little rainfall to worry about.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in Ruiru - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Ruiru typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are cool, with lows around 13°C (55°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Ruiru spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Ruiru spans 1976 to 2025, revealing these weather extremes.
Find out more about the weather in Kenya and which places have the best travel conditions in this month. See all of Kenya in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Ruiru in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Ruiru climate overview or explore weather in Kenya.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 best wildlife viewing sites in Kenya
Explore Kenya's top 10 safari parks in this guide, featuring the Maasai Mara, Amboseli, and more, for a spectacular wildlife adventure
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