Ol Kalou in Winter
In winter (June, July and August), Ol Kalou sees average daytime highs around 18°C and overnight lows near 9°C, with 493 mm of rain over about 62 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 18°C. The sky is clear or mostly clear about 4% of the time across winter, and the air most often feels dry.
Winter is Ol Kalou's weakest season of the year to visit on our travel score. For the whole year in context, see Ol Kalou's year-round climate.
- Avg daytime high
- 18°C
- coldest season of the year
- Avg overnight low
- 9°C
- Rainfall
- 493 mm
- 62 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Ol Kalou in Winter
Across winter, daytime highs hold fairly steady around 18°C.
A typical winter day in Ol Kalou reaches about 18°C and drops to 9°C overnight. The warmest of the three months is June, the coolest August.
Ol Kalou weather by month
How the three winter months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 20° / 9° | 66 | 8.4 | 12 | 6.6 |
| Feb | 22° / 8° | 52 | 5.7 | 12 | 7.1 |
| Mar | 22° / 9° | 112 | 11.8 | 12 | 6.4 |
| Apr | 20° / 10° | 235 | 20.6 | 12 | 4.6 |
| May | 19° / 11° | 181 | 18.4 | 12 | 4.9 |
| Jun | 18° / 10° | 139 | 17.5 | 12 | 4.8 |
| Jul | 17° / 9° | 164 | 22.1 | 12 | 4.0 |
| Aug | 18° / 9° | 190 | 22.8 | 12 | 3.9 |
| Sep | 19° / 8° | 138 | 16.8 | 12 | 5.1 |
| Oct | 19° / 9° | 206 | 20 | 12 | 4.6 |
| Nov | 19° / 10° | 211 | 23.4 | 12 | 4.1 |
| Dec | 19° / 9° | 95 | 13.4 | 12 | 5.6 |
Cloud cover in Winter
The sky is clear or mostly clear about 4% of the time across winter.
Chance of precipitation in Winter
Ol Kalou gets around 493 mm of rain over 62 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 6 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 12 hours in early June to 12 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.1 kWh/m².
Is winter a good time to visit Ol Kalou?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Ol Kalou for sightseeing.
What to pack for Ol Kalou in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Ol Kalou sees daytime highs around 18°C and nights near 9°C. Pack rain gear. Worth having: sun protection. About 62 days see rain.
UV index in Ol Kalou in Winter
Clear-sky midday UV across winter averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ol Kalou peaks around March 16 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 11 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 16 | 16 | 17 | 16 | 13 | 11 | 12 | 13 | 14 | 15 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 16 | Extreme |
| Mar | 17 | Extreme |
| Apr | 16 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 14 | Extreme |
| Oct | 15 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Air quality in Ol Kalou in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Ol Kalou is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 27 | 31 | 28 | 27 | 28 | 34 | 34 | 28 | 25 | 24 | 27 | 28 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 27 | Moderate |
| Feb | 31 | Moderate |
| Mar | 28 | Moderate |
| Apr | 27 | Moderate |
| May | 28 | Moderate |
| Jun | 34 | Moderate |
| Jul | 34 | Moderate |
| Aug | 28 | Moderate |
| Sep | 25 | Moderate |
| Oct | 24 | Moderate |
| Nov | 27 | Moderate |
| Dec | 28 | Moderate |
Where is Ol Kalou?
Ol Kalou sits at 0.3°S, 36.4°E, 2,348 m above sea level, in Kenya. The nearest listed city is Upper Gilgil, 14 km away.
Topography around Ol Kalou
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ol Kalou.
Within 3 km, the terrain around Ol Kalou has only modest variations in elevation — a maximum elevation change of 197 m around an average of 2,380 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 803 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,992 m.
The land around Ol Kalou is covered by cropland (51%) and grassland (23%) within 3 km, cropland (40%) and grassland (31%) within 16 km, and grassland (33%), trees (24%) and cropland (23%) within 80 km.
Kenya travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type G
- 240 V · 50 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $2,363
- 2025
- Happiness
- 4.7 / 10
- World Happiness, 2025
- Homicide rate
- 4.9
- per 100k, 2022
- Road deaths
- 28.3
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- High
- EF EPI 593
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ol Kalou (-0.2709°, 36.3792°, elevation 2,348 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.