Kiomboi weather in December

In December, Kiomboi sees average daytime highs of 29°C and overnight lows near 19°C, with 168 mm of rain across 18.5 wet days and about 12.2 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 19% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 12 min at the start of December to 12 h 12 min by month's end. Set against the rest of the year, December is Kiomboi's 11th-clearest and 11th-windiest month. For the whole year in context, see Kiomboi's year-round climate.

Daytime high
29°
10th warmest
Overnight low
19°
10th coldest
Rainfall
168 mm
18.5 wet days
Daylight
12 h 12 min
6:31 AM – 6:46 PM
Cloud cover
66%
11th clearest
Wind
6 km/h
11th windiest
Solar energy
5.96 kWh/m²
Travel score
4.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Kiomboi reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13019
22919
32919
42919
52919
62919
72919
82919
92919
102919
112919
122919
132919
142919
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

How December really feels in Kiomboi

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kiomboi weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°14117.612.24.9
Feb29° / 19°10414.512.14.7
Mar29° / 19°14216.7124.6
Apr28° / 19°11613.611.95.2
May29° / 18°204.111.86.3
Jun29° / 17°10.311.86.7
Jul29° / 16°00.111.87.0
Aug30° / 17°10.211.96.3
Sep31° / 18°20.5125.3
Oct32° / 19°183.212.14.5
Nov31° / 20°10110.412.24.4
Dec29° / 19°16818.512.24.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34654
44555
54456
64456
74456
84357
94258
104258
114159
124159
134060
144060
154060
164060
174060
184060
194060
204060
214060
224060
234060
243961
253961
264060
274060
284159
294159
304159
314060

Chance of precipitation in December

Any precipitation

Kiomboi gets around 168 mm of rain over 18.5 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 60% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
250
351
452
553
655
756
857
958
1060
1161
1261
1362
1463
1563
1664
1764
1864
1963
2063
2163
2263
2362
2462
2562
2661
2761
2861
2961
3060
3160

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
119273618
219263619
319253719
419243720
518233821
618223821
717223922
817214022
916204123
1015194323
1115184423
1214174524
1314164624
1413164724
1513154725
1613144825
1713144825
1813134826
1913134826
2013124927
2113124927
2213124927
2312114927
2412114928
2512114928
2612114929
2711114929
2811114830
2911114831
3010114831
319114732

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:25 AM to 6:38 AM, and sunset from 6:39 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:256:39
212.26:266:40
312.26:266:40
412.26:266:40
512.26:276:41
612.26:276:41
712.26:286:42
812.26:286:42
912.26:286:43
1012.26:296:43
1112.26:296:44
1212.26:306:44
1312.26:306:45
1412.26:306:45
1512.26:316:46
1612.26:316:46
1712.26:326:47
1812.26:326:47
1912.26:336:47
2012.26:336:48
2112.26:346:48
2212.26:346:49
2312.26:356:49
2412.26:356:50
2512.26:366:50
2612.26:366:51
2712.26:366:51
2812.26:376:52
2912.26:376:52
3012.26:386:53
3112.26:386:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.96 kWh/m².

For context, solar energy here swings from a low near 5.86 kWh/m² to a high of 7.1 kWh/m² in September across the year — December's 5.96 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Bright
116.0Bright
126.0Bright
136.0Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in December

Hazard calendar for Kiomboi

In seasonPeak

In December, Kiomboi sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kiomboi's rainy season runs November–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Kiomboi?

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

4.6
Sightseeing
9th-best month of the year
5.5
Beach & pool
12th-best month of the year

December is a reasonable time to visit Kiomboi for sightseeing.

What to pack for Kiomboi in December

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

In December, Kiomboi sees daytime highs around 29°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Kiomboi in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks 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 Kiomboi peaks around March 13 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 13UV 16Jun 17UV 10
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Kiomboi?

Kiomboi sits at 4.3°S, 34.4°E, 1,545 m above sea level, in Tanzania. The nearest listed city is Shelui, 22 km away.

IlongeroSingidaBasotu

Topography around Kiomboi

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

Within 3 km, the terrain around Kiomboi has only modest variations in elevation — a maximum elevation change of 108 m around an average of 1,525 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 744 m; within 80 km, large variations in elevation — a maximum elevation change of 857 m.

The land around Kiomboi is covered by cropland (51%) and grassland (33%) within 3 km, cropland (34%), shrubs (29%) and grassland (21%) within 16 km, and cropland (43%) and grassland (31%) within 80 km.

3 km
108 m
16 km
744 m
80 km
857 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Shelui 22 km · Igugunu 45 km · Igunga 54 km · Sepuka 57 km · Mtinko 62 km · Ilongero 71 km · Singida 74 km · Basotu 80 km

Tanzania travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$1,319
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
31%
of population, 2024
Homicide rate
3.7
per 100k, 2020
Road deaths
31.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 479
Religion
Christian 63%Muslim 34%folk religion 1%

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 Kiomboi (-4.2667°, 34.3667°, elevation 1,545 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).