Mtwango weather in December

In December, Mtwango sees average daytime highs of 24°C and overnight lows near 16°C, with 150 mm of rain across 19.6 wet days and about 12.5 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 15% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Mtwango's 9th-clearest and 10th-windiest month. For the whole year in context, see Mtwango's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
16°
12th coldest
Rainfall
150 mm
19.6 wet days
Daylight
12 h 30 min
6:21 AM – 6:53 PM
Cloud cover
73%
9th clearest
Wind
9 km/h
10th windiest
Solar energy
5.56 kWh/m²
Travel score
5.3
out of 10

Mtwango is town in Njombe Region, Tanzania.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical December day in Mtwango reaches about 24°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 26°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12515
22516
32516
42516
52516
62516
72516
82516
92416
102416
112416
122416
132416
142416
152416
162416
172416
182416
192416
202416
212416
222416
232416
242416
252416
262416
272416
282416
292416
302416
312416

Mtwango weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 16°21625.812.54.3
Feb24° / 16°19823.312.34.2
Mar23° / 16°18124.812.14.4
Apr22° / 15°5612.611.86.1
May22° / 13°92.411.67.9
Jun21° / 11°10.111.58.3
Jul20° / 11°00.111.58.2
Aug22° / 11°10.111.78.5
Sep23° / 12°20.311.98.8
Oct25° / 14°133.312.28.2
Nov25° / 15°498.612.46.9
Dec24° / 16°15019.612.55.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
33862
43763
53565
63565
73565
83367
93268
103268
113169
123070
132872
142872
152872
162773
172674
182674
192575
202575
212575
222476
232476
242377
252377
262278
272278
282278
292179
302080
311981

Chance of precipitation in December

Any precipitation

Mtwango gets around 150 mm of rain over 19.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
147
248
349
451
552
653
754
855
957
1058
1159
1260
1362
1463
1564
1665
1766
1867
1968
2069
2169
2270
2370
2471
2571
2672
2772
2873
2973
3074
3175

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1305515
2285616
3275617
4265618
5245719
6235819
7215920
8205921
9186022
10176023
11166024
12146125
13136027
14126028
15125929
16115930
17105931
18105832
1995932
2095833
2195734
2295635
2395536
2495437
2595437
2685438
2785339
2885339
2975340
3075241
3175142

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
411calm
511calm
611calm
711calm
811calm
910calm
1010calm
1110calm
1210calm
1310calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 30 min at the start of December to 12 h 30 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 6:16 AM to 6:28 AM, and sunset from 6:45 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:166:45
212.56:166:46
312.56:166:46
412.56:176:47
512.56:176:47
612.56:176:48
712.56:186:48
812.56:186:49
912.56:186:49
1012.56:196:50
1112.56:196:50
1212.56:206:51
1312.56:206:51
1412.56:206:52
1512.56:216:52
1612.56:216:53
1712.56:226:53
1812.56:226:54
1912.56:236:54
2012.56:236:55
2112.56:246:55
2212.56:246:56
2312.56:246:56
2412.56:256:56
2512.56:256:57
2612.56:266:57
2712.56:266:58
2812.56:276:58
2912.56:276:59
3012.56:286:59
3112.56:287:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.56 kWh/m².

For context, solar energy here swings from a low near 4.99 kWh/m² to a high of 6.89 kWh/m² in October across the year — December's 5.56 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Mtwango

In seasonPeak

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

Mtwango's monsoon runs December–March, when most of the year's rain falls.

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

Is December a good time to visit Mtwango?

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

5.3
Sightseeing
9th-best month of the year
4.6
Beach & pool
7th-best month of the year

December is a reasonable time to visit Mtwango for sightseeing.

What to pack for Mtwango in December

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

In December, Mtwango sees daytime highs around 24°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Mtwango in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mtwango peaks around February 22 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 16Jun 15UV 10
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May11Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct15Extreme
Nov14Extreme
Dec14Extreme

Air quality in Mtwango in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mtwango is worst in October — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (May, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1620 µg/m³May 157 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr8Good
May7Good
Jun8Good
Jul11Good
Aug14Moderate
Sep17Moderate
Oct21Moderate
Nov17Moderate
Dec10Good
Location & terrain

Where is Mtwango?

Mtwango sits at 9.0°S, 34.8°E, 1,767 m above sea level, in Tanzania. The nearest listed city is Makumbako, 19 km away.

ChimalaMlangaliMafinga

Topography around Mtwango

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

Within 3 km, the terrain around Mtwango has only modest variations in elevation — a maximum elevation change of 125 m around an average of 1,774 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 424 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,233 m.

The land around Mtwango is covered by cropland (69%) within 3 km, cropland (47%) and shrubs (28%) within 16 km, and shrubs (32%), trees (27%) and grassland (22%) within 80 km.

3 km
125 m
16 km
424 m
80 km
2,233 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Makumbako 19 km · Ilembula 27 km · Njombe 37 km · Rujewa 58 km · Urunda 68 km · Chimala 87 km · Mlangali 91 km · Mafinga 96 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 Mtwango (-9.0167°, 34.8°, elevation 1,767 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).