Juja weather in January

In January, Juja sees average daytime highs of 25°C and overnight lows near 14°C, with 41 mm of rain across 8.3 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 42% of the time in January, and the air most often feels comfortable.

Daylight stretches from about 12 h 06 min at the start of January to 12 hours by month's end. Set against the rest of the year, January is Juja's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Juja's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
14°
5th coldest
Rainfall
41 mm
8.3 wet days
Daylight
12 h 06 min
6:40 AM – 6:43 PM
Cloud cover
50%
2nd clearest
Wind
8 km/h
2nd windiest
Solar energy
6.41 kWh/m²
Travel score
7.3
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical January day in Juja reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222514
232614
242614
252614
262614
272614
282614
292614
302614
312614

Juja weather by month

How January compares with the rest of the year at a glance. January is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°418.312.17.3
Feb27° / 14°315.8127.2
Mar26° / 15°7514.1126.1
Apr25° / 16°17925124.5
May23° / 15°13620.6125.2
Jun22° / 14°5310.911.96.1
Jul22° / 13°26711.96.5
Aug22° / 13°328.9126.4
Sep24° / 13°236.2127.3
Oct25° / 15°8514.4126.2
Nov23° / 15°16123.8124.7
Dec24° / 14°7215.612.16.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56337
66337
76238
86238
96139
106040
116040
126139
136139
146139
156139
166139
176238
186238
196238
206238
216337
226337
236337
246436
256436
266436
276535
286436
296436
306436
316535

Chance of precipitation in January

Any precipitation

Juja gets around 41 mm of rain over 8.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
134
233
332
432
531
631
731
831
931
1031
1131
1231
1330
1429
1529
1628
1727
1827
1926
2025
2124
2224
2323
2422
2521
2620
2719
2819
2918
3018
3118

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the comfortable band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1245917
2246016
3246016
4255916
5255916
6255916
7265816
8265816
9275716
10275716
11275815
12285715
13295615
14305614
15315514
16325513
17335413
18345412
19355312
20375211
21385111
22395011
23414910
24424810
2544479
2646459
2747449
2849439
2951418
3052408
3153398

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 06 min at the start of January to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 6:33 AM to 6:44 AM, and sunset from 6:37 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:336:37
212.16:346:37
312.16:346:38
412.16:356:38
512.16:356:39
612.16:356:39
712.16:366:40
812.16:366:40
912.16:376:40
1012.16:376:41
1112.16:386:41
1212.16:386:42
1312.16:386:42
1412.16:396:42
1512.16:396:43
1612.16:406:43
1712.16:406:43
1812.16:406:44
1912.16:416:44
2012.16:416:44
2112.16:416:44
2212.16:426:45
2312.16:426:45
2412.16:426:45
2512.16:426:46
2612.16:436:46
2712.16:436:46
2812.16:436:46
2912.06:436:46
3012.06:446:47
3112.06:446:47

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.41 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.79 kWh/m² in February across the year — January's 6.41 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.4Intense
166.4Intense
176.4Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in January

Is January a good time to visit Juja?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.3
Sightseeing
1st-best month of the year
6.6
Beach & pool
2nd-best month of the year

January is one of the better times to visit Juja for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Juja in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Juja sees daytime highs around 25°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

UV index in Juja in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks 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 Juja peaks around March 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 16Jun 17UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May11Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Juja in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Juja is worst in June — around 65 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJun 1864 µg/m³Sep 2348 µg/m³
PM2.5 (µg/m³)Level
Jan62Unhealthy
Feb59Unhealthy
Mar56Unhealthy
Apr56Unhealthy
May57Unhealthy
Jun65Unhealthy
Jul60Unhealthy
Aug51Poor
Sep48Poor
Oct48Poor
Nov60Unhealthy
Dec64Unhealthy
Location & terrain

Where is Juja?

Juja sits at 1.1°S, 37.0°E, 1,521 m above sea level, in Kenya. The nearest listed city is Ruiru, 8.0 km away.

Topography around Juja

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Juja.

Within 3 km, the terrain around Juja has only modest variations in elevation — a maximum elevation change of 76 m around an average of 1,516 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 283 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,861 m.

The land around Juja is covered by grassland (28%) and artificial surfaces (24%) within 3 km, grassland (28%), shrubs (21%) and cropland (21%) within 16 km, and grassland (31%), shrubs (29%) and trees (21%) within 80 km.

3 km
76 m
16 km
283 m
80 km
2,861 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Ruiru 8.0 km · Thika 10 km · Kiambu 21 km · Kenol 22 km · Githunguri 22 km · Githunguri 27 km · Pumwani 27 km · Imara Daima Estate 29 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
Christian 86%Muslim 11%other 2%none 2%

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 Juja (-1.1015°, 37.0132°, elevation 1,521 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).