Kiserian in Summer
In summer (December, January and February), Kiserian sees average daytime highs around 27°C and overnight lows near 16°C, with 99 mm of rain over about 19 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 25°C in early December to 28°C by late February. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels comfortable.
Summer is Kiserian's 2nd-best season to visit on our travel score. For the whole year in context, see Kiserian's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 99 mm
- 19 wet days
- Avg wind
- 11 km/h
- Travel score
- 7.0
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Kiserian in Summer
Over the season highs climb from about 25°C in early December to 28°C by late February.
A typical summer day in Kiserian reaches about 27°C and drops to 16°C overnight. The warmest of the three months is February, the coolest January.
Kiserian weather by month
How the three summer months (December, January and February) 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 | 27° / 16° | 31 | 5.6 | 12.1 | 7.3 |
| Feb | 28° / 16° | 23 | 4.4 | 12 | 6.9 |
| Mar | 28° / 17° | 49 | 9.4 | 12 | 6.3 |
| Apr | 26° / 17° | 100 | 16.1 | 12 | 5.6 |
| May | 25° / 16° | 82 | 14.7 | 11.9 | 6.1 |
| Jun | 24° / 15° | 34 | 6.4 | 11.9 | 7.0 |
| Jul | 23° / 14° | 11 | 2.6 | 11.9 | 7.4 |
| Aug | 24° / 14° | 15 | 3.1 | 12 | 7.5 |
| Sep | 26° / 14° | 12 | 2.2 | 12 | 7.7 |
| Oct | 26° / 16° | 31 | 6.9 | 12 | 7.0 |
| Nov | 25° / 16° | 75 | 15.8 | 12.1 | 5.8 |
| Dec | 26° / 16° | 45 | 9.4 | 12.1 | 6.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
Kiserian gets around 99 mm of rain over 19 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 11 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early December to 12 hours by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.3 kWh/m².
Hazard calendar for Kiserian
None of Kiserian's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Kiserian's rainy season runs March–May, when most of the year's rain falls.
Is summer a good time to visit Kiserian?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Kiserian for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Kiserian in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Kiserian sees daytime highs around 27°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 19 days see rain.
UV index in Kiserian in Summer
Clear-sky midday UV across summer averages around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Kiserian peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (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) | 15 | 15 | 16 | 15 | 12 | 10 | 11 | 12 | 14 | 14 | 14 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 16 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 14 | Extreme |
| Dec | 13 | Extreme |
Air quality in Kiserian in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Kiserian is worst in June — around 53 µg/m³ PM2.5 (poor), 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) | 48 | 43 | 41 | 44 | 47 | 53 | 48 | 39 | 34 | 33 | 45 | 50 |
| Level | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 48 | Poor |
| Feb | 43 | Poor |
| Mar | 41 | Poor |
| Apr | 44 | Poor |
| May | 47 | Poor |
| Jun | 53 | Poor |
| Jul | 48 | Poor |
| Aug | 39 | Poor |
| Sep | 34 | Moderate |
| Oct | 33 | Moderate |
| Nov | 45 | Poor |
| Dec | 50 | Poor |
Where is Kiserian?
Kiserian sits at 1.4°S, 36.7°E, 1,840 m above sea level, in Kenya. The nearest listed city is Ngong, 9.0 km away.
Topography around Kiserian
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kiserian.
Within 3 km, the terrain around Kiserian has significant variations in elevation — a maximum elevation change of 309 m around an average of 1,870 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 994 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,418 m.
The land around Kiserian is covered by trees (30%), shrubs (25%) and grassland (20%) within 3 km, grassland (45%) and shrubs (29%) within 16 km, and grassland (40%) and shrubs (36%) 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 Kiserian (-1.4275°, 36.6865°, elevation 1,840 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.