Jomvu in Summer
In summer (December, January and February), Jomvu sees average daytime highs around 32°C and overnight lows near 24°C, with 118 mm of rain over about 27 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 31°C in early December to 33°C by late February. The sky is clear or mostly clear about 38% of the time across summer, and the air most often feels oppressive.
Summer is Jomvu's 3rd-best season to visit on our travel score. For the whole year in context, see Jomvu's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 118 mm
- 27 wet days
- Avg wind
- 10 km/h
- Travel score
- 4.1
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Jomvu in Summer
Over the season highs climb from about 31°C in early December to 33°C by late February.
A typical summer day in Jomvu reaches about 32°C and drops to 24°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Jomvu
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Jomvu 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 | 32° / 24° | 28 | 5.7 | 12.2 | 4.4 |
| Feb | 33° / 24° | 20 | 4.3 | 12.1 | 4.1 |
| Mar | 33° / 25° | 63 | 15.5 | 12 | 3.3 |
| Apr | 31° / 24° | 108 | 22.8 | 11.9 | 3.3 |
| May | 29° / 23° | 155 | 20.4 | 11.8 | 4.4 |
| Jun | 28° / 22° | 59 | 15.8 | 11.8 | 5.4 |
| Jul | 27° / 21° | 46 | 15 | 11.8 | 5.8 |
| Aug | 27° / 21° | 40 | 15.1 | 11.9 | 5.8 |
| Sep | 28° / 22° | 38 | 14.5 | 12 | 5.5 |
| Oct | 30° / 23° | 69 | 15.5 | 12.1 | 4.7 |
| Nov | 30° / 23° | 83 | 19.5 | 12.2 | 3.8 |
| Dec | 31° / 24° | 70 | 17 | 12.2 | 3.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 38% of the time across summer.
Chance of precipitation in Summer
Jomvu gets around 118 mm of rain over 27 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early December to 12 h 06 min 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 6.1 kWh/m².
Is summer a good time to visit Jomvu?
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 Jomvu for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Jomvu in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Jomvu sees daytime highs around 32°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 27 days see rain.
Sea temperature near Jomvu in Summer
The nearest coast averages about 28°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in April at about 29°C and coldest in August near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 29 | 28 | 27 | 26 | 25 | 26 | 27 | 28 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Warm |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 25 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 28 | Tropical |
UV index in Jomvu in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Jomvu peaks around March 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (very high).
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) | 14 | 14 | 15 | 14 | 11 | 9 | 10 | 11 | 13 | 13 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Jomvu 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 Jomvu is worst in December — around 21 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) | 21 | 19 | 17 | 14 | 14 | 16 | 17 | 15 | 14 | 13 | 15 | 21 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 21 | Moderate |
| Feb | 19 | Moderate |
| Mar | 17 | Moderate |
| Apr | 14 | Moderate |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 13 | Moderate |
| Nov | 15 | Moderate |
| Dec | 21 | Moderate |
Where is Jomvu?
Jomvu sits at 4.0°S, 39.6°E, 21 m above sea level, in Kenya. The nearest listed city is Mazeras, 7.0 km away.
Topography around Jomvu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jomvu.
Within 3 km, the terrain around Jomvu has only modest variations in elevation — a maximum elevation change of 91 m around an average of 28 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 271 m; within 80 km, large variations in elevation — a maximum elevation change of 778 m.
The land around Jomvu is covered by grassland (39%) and artificial surfaces (21%) within 3 km, grassland (38%) and trees (22%) within 16 km, and water (31%), shrubs (29%) and grassland (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 Jomvu (-3.9862°, 39.6082°, elevation 21 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.