Ruiru, Kenya experiences average highs of 25°C (77°F) and lows of 15°C (59°F) throughout the year. Rainfall is moderate, averaging about 9 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 0.8°C (1.4°F) across the available records.
Ruiru, Kenya Weather & Climate 2026
Monthly climate averages for Ruiru, Kenya. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Sep 
Wetter season: Mar–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
8.4/10
Best: January, February, June, July, September
UV Index
9
High
Temperature 25°C / 15°C
Feels Like 25°C / 15°C
Rainy Days 9
Rainfall 50 mm
Sunshine 10 h
Humidity 70%
Wind Speed 14 km/h
Dew Point 14°C
Hottest Month
27°C
March
Avg Low16°C
Rain11days
Coldest Month
13°C
July
Avg High22°C
Rain3days
Driest Month
3days
July
Avg High22°C
Avg Low13°C
Windiest Month
17 km/h
February (Gusts 41)
Worst Time to Visit
Consider avoiding April, November due to heavy rainfall.
Sun Position
Sunrise 06:32
Daylight 12.1h
Sunset 18:36
Live conditions—
Ruiru on the map · live conditions
Ruiru, Kenya
- Continent
- Africa
- Country
- Kenya
- City
- Ruiru
- Population
- 490.1K
- Coordinates
- -1.15°, 36.96°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 25°C
Avg Low 15°C
Rain 10 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 26°C
Avg Low 15°C
Rain 7 days/mo
2/3 best months
Autumn
Mar–May
Avg High 25°C
Avg Low 16°C
Rain 16 days/mo
Winter
Jun–Aug
Avg High 23°C
Avg Low 13°C
Rain 4 days/mo
2/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 26°C / 14°C . Feb: 27°C / 15°C . Mar: 27°C / 16°C . Apr: 25°C / 16°C . May: 24°C / 15°C . Jun: 23°C / 14°C . Jul: 22°C / 13°C . Aug: 23°C / 13°C . Sep: 25°C / 14°C . Oct: 26°C / 15°C . Nov: 24°C / 15°C . Dec: 25°C / 15°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 28 mm. Feb: 16 mm. Mar: 58 mm. Apr: 146 mm. May: 74 mm. Jun: 24 mm. Jul: 11 mm. Aug: 14 mm. Sep: 17 mm. Oct: 44 mm. Nov: 115 mm. Dec: 57 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 61%. Mar: 64%. Apr: 78%. May: 78%. Jun: 73%. Jul: 71%. Aug: 68%. Sep: 65%. Oct: 65%. Nov: 78%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 16 km/h . Feb: 17 km/h . Mar: 17 km/h . Apr: 13 km/h . May: 12 km/h . Jun: 11 km/h . Jul: 11 km/h . Aug: 12 km/h . Sep: 14 km/h . Oct: 14 km/h . Nov: 15 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 11h. Mar: 11h. Apr: 10h. May: 10h. Jun: 10h. Jul: 8h. Aug: 8h. Sep: 10h. Oct: 11h. Nov: 10h. Dec: 11h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 10. Mar: UV 10. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 9. Oct: UV 9. Nov: UV 9. Dec: UV 9.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have warmed by 0.8°C (1.4°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Feb 2025 · 28°C | Mar · 27°C |
| Coldest month | Aug 2025 · 13°C | Jul · 13°C |
| Wettest month | Apr 2025 · 124 mm | Apr · 146 mm |
| Windiest month | Feb 2025 · 18 km/h | Feb · 17 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March
Good April
Wet May
Good June best
Excellent July best
Excellent August
Good September best
Excellent October
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 26°C / 14°C | 26°C / 14°C | 6days (28 mm) Good | 11h Excellent | 67% Muggy | 8.8 Very High | Excellent | View Details |
| February best | 27°C / 15°C | 27°C / 15°C | 4days (16 mm) Good | 11.2h Excellent | 61% Muggy | 9.7 Very High | Excellent | View Details |
| March | 27°C / 16°C | 28°C / 16°C | 11days (58 mm) Wet | 10.8h Excellent | 64% Muggy | 9.8 Very High | Good | View Details |
| April | 25°C / 16°C | 27°C / 17°C | 24days (146 mm) Wet | 10h Excellent | 78% Humid | 8.7 Very High | Wet | View Details |
| May | 24°C / 15°C | 25°C / 16°C | 13days (74 mm) Wet | 10.2h Excellent | 78% Humid | 8.1 Very High | Good | View Details |
| June best | 23°C / 14°C | 23°C / 14°C | 5days (24 mm) Good | 9.5h Good | 73% Muggy | 7.8 Very High | Excellent | View Details |
| July best | 22°C / 13°C | 22°C / 13°C | 3days (11 mm) Excellent | 7.8h Good | 71% Muggy | 7.5 Very High | Excellent | View Details |
| August | 23°C / 13°C | 23°C / 13°C | 3days (14 mm) Excellent | 8.4h Good | 68% Muggy | 8.1 Very High | Good | View Details |
| September best | 25°C / 14°C | 25°C / 14°C | 3days (17 mm) Excellent | 9.9h Good | 65% Muggy | 9.2 Very High | Excellent | View Details |
| October | 26°C / 15°C | 26°C / 15°C | 8days (44 mm) Wet | 10.8h Excellent | 65% Muggy | 9.1 Very High | Excellent | View Details |
| November | 24°C / 15°C | 25°C / 16°C | 18days (115 mm) Wet | 10.3h Excellent | 78% Humid | 8.6 Very High | Good | View Details |
| December | 25°C / 15°C | 25°C / 15°C | 12days (57 mm) Wet | 10.7h Excellent | 74% Muggy | 8.8 Very High | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Ruiru are January, February, June, July, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Ruiru, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Ruiru is March, with average daytime highs of 27°C (81°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Ruiru is July, with average overnight lows of 13°C (55°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Ruiru is April, averaging 146mm of precipitation across 24 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Ruiru runs through April, November, May, December, with the heaviest rainfall in April. Based on 10-year averages for Ruiru.
Ruiru receives approximately 121 sunshine hours per year. The sunniest month is February with around 11 hours. Based on climate data for Ruiru.
The least favorable months to visit Ruiru are April, November, primarily due to heavy rainfall. For the best conditions, consider January, February, June, July, September instead.
The annual average UV index in Ruiru is 9, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Ruiru is 70%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Ruiru are 14 km/h (9 mph). The windiest month is February with peak winds reaching 17 km/h (11 mph) (gusts up to 41 km/h / 25 mph).
Ruiru averages 1 clear-sky days per month with overall cloud cover around 68%. The clearest skies occur in January.
The annual average dew point in Ruiru is 14°C (57°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Ruiru has a Warm-Summer Mediterranean climate, classified as Csb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Ruiru ranges from 15°C (59°F) to 25°C (77°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Ruiru. It earns a climate score of 9.3/10 with Excellent.
For June in Ruiru, pack Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 23°C (73°F) and 5 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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