Mumias in Summer
In summer (June, July and August), Mumias sees average daytime highs around 26°C and overnight lows near 17°C, with 402 mm of rain over about 72 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 11% of the time across summer, and the air most often feels humid.
Summer is Mumias's 2nd-best season to visit on our travel score. For the whole year in context, see Mumias's year-round climate.
- Avg daytime high
- 26°C
- coldest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 402 mm
- 72 wet days
- Avg wind
- 5 km/h
- Travel score
- 4.5
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Mumias in Summer
Across summer, daytime highs hold fairly steady around 26°C.
A typical summer day in Mumias reaches about 26°C and drops to 17°C overnight. The warmest of the three months is August, the coolest July.
Mumias weather by month
How the three summer 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 | 29° / 17° | 102 | 15.8 | 12 | 4.8 |
| Feb | 30° / 18° | 81 | 13.6 | 12 | 4.5 |
| Mar | 29° / 18° | 158 | 21.7 | 12 | 4.0 |
| Apr | 27° / 18° | 257 | 27.4 | 12 | 3.6 |
| May | 27° / 17° | 237 | 28.3 | 12 | 3.8 |
| Jun | 26° / 17° | 144 | 24.8 | 12 | 4.3 |
| Jul | 26° / 17° | 119 | 22 | 12 | 4.8 |
| Aug | 27° / 17° | 139 | 24.8 | 12 | 4.4 |
| Sep | 27° / 17° | 137 | 24.8 | 12 | 4.2 |
| Oct | 27° / 17° | 189 | 27.9 | 12 | 3.7 |
| Nov | 27° / 17° | 197 | 25.8 | 12 | 3.9 |
| Dec | 28° / 17° | 137 | 20.1 | 12 | 4.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 11% of the time across summer.
Chance of precipitation in Summer
Mumias gets around 402 mm of rain over 72 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
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 Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.3 kWh/m².
Is summer a good time to visit Mumias?
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 a reasonable time to visit Mumias for sightseeing.
What to pack for Mumias in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mumias sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 72 days see rain.
UV index in Mumias in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mumias peaks around March 16 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 | 14 | 16 | 14 | 12 | 10 | 11 | 11 | 12 | 14 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Mumias 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 Mumias is worst in June — around 78 µg/m³ PM2.5 (unhealthy), 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) | 74 | 68 | 67 | 67 | 69 | 78 | 76 | 74 | 71 | 73 | 77 | 76 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 74 | Unhealthy |
| Feb | 68 | Unhealthy |
| Mar | 67 | Unhealthy |
| Apr | 67 | Unhealthy |
| May | 69 | Unhealthy |
| Jun | 78 | Unhealthy |
| Jul | 76 | Unhealthy |
| Aug | 74 | Unhealthy |
| Sep | 71 | Unhealthy |
| Oct | 73 | Unhealthy |
| Nov | 77 | Unhealthy |
| Dec | 76 | Unhealthy |
Where is Mumias?
Mumias sits at 0.3°N, 34.5°E, 1,321 m above sea level, in Kenya. The nearest listed city is Lugulu, 21 km away.
Topography around Mumias
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mumias.
Within 3 km, the terrain around Mumias has only modest variations in elevation — a maximum elevation change of 102 m around an average of 1,300 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 224 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,661 m.
The land around Mumias is covered by shrubs (39%) and trees (26%) within 3 km, shrubs (41%), trees (23%) and cropland (20%) within 16 km, and shrubs (27%), trees (23%) and cropland (22%) 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 Mumias (0.3347°, 34.488°, elevation 1,321 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.