Mlangali weather in December

In December, Mlangali sees average daytime highs of 24°C and overnight lows near 17°C, with 405 mm of rain across 28.1 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 3rd-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 9% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Mlangali's 9th-clearest and 10th-windiest month. For the whole year in context, see Mlangali's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
17°
12th coldest
Rainfall
405 mm
28.1 wet days
Daylight
12 h 36 min
6:21 AM – 6:55 PM
Cloud cover
79%
9th clearest
Wind
4 km/h
10th windiest
Solar energy
5.39 kWh/m²
Travel score
4.0
out of 10

Mlangali is town and ward in Njombe, 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 Mlangali reaches about 24°C in the afternoon and slips back to 17°C overnight — a 6°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 2°C cooler than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72417
82417
92417
102417
112417
122417
132417
142417
152417
162417
172417
182417
192317
202317
212317
222317
232317
242317
252317
262317
272317
282317
292317
302317
312317

Mlangali weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 17°43629.512.53.6
Feb23° / 17°39325.612.33.8
Mar23° / 17°47030.112.13.6
Apr22° / 16°25825.911.84.1
May21° / 15°6112.911.66.1
Jun20° / 12°154.911.47.0
Jul19° / 12°123.811.57.2
Aug21° / 13°82.711.77.9
Sep23° / 14°71.611.98.6
Oct25° / 16°448.312.27.4
Nov25° / 17°17118.512.45.5
Dec24° / 17°40528.112.64.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33070
43070
52872
62872
72674
82575
92575
102377
112278
122278
132080
141981
151882
161882
171783
181783
191783
201783
211684
221684
231684
241585
251585
261585
271486
281387
291387
301288
311288

Chance of precipitation in December

Any precipitation

Mlangali gets around 405 mm of rain over 28.1 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 91% and peaks near 95% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
180
281
382
483
584
686
787
888
989
1089
1190
1291
1391
1492
1592
1693
1793
1893
1994
2094
2194
2294
2394
2494
2594
2694
2795
2895
2995
3095
3195

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11539460
21438470
31338490
41238500
51137520
61037530
7936550
8835570
9735580
10734590
11633610
12532630
13531640
14530650
15429670
16428680
17428680
18427690
19426700
20426700
21425710
22424720
23424720
24423730
25422740
26322750
27321760
28321751
29320761
30220771
31220771

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 30 min at the start of December to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:16 AM to 6:28 AM, and sunset from 6:48 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:166:48
212.56:166:48
312.56:166:49
412.56:176:49
512.56:176:50
612.56:176:50
712.66:186:51
812.66:186:51
912.66:186:52
1012.66:196:52
1112.66:196:53
1212.66:196:53
1312.66:206:54
1412.66:206:54
1512.66:216:55
1612.66:216:55
1712.66:216:56
1812.66:226:56
1912.66:226:57
2012.66:236:57
2112.66:236:58
2212.66:246:58
2312.66:246:59
2412.66:256:59
2512.66:256:59
2612.66:267:00
2712.66:267:00
2812.66:277:01
2912.66:277:01
3012.66:287:02
3112.66:287:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.39 kWh/m².

For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 6.8 kWh/m² in October across the year — December's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in December

Hazard calendar for Mlangali

In seasonPeak

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

Mlangali sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Mlangali's monsoon runs December–April, when most of the year's rain falls.

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

Is December a good time to visit Mlangali?

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

4.0
Sightseeing
9th-best month of the year
3.3
Beach & pool
7th-best month of the year

December is a reasonable time to visit Mlangali for sightseeing.

What to pack for Mlangali in December

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

In December, Mlangali sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 28 days see rain.

rain gearlight clothessun protection

UV index in Mlangali 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 Mlangali peaks around February 19 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 17Jun 16UV 10
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct15Extreme
Nov13Extreme
Dec14Extreme

Air quality in Mlangali 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 Mlangali is worst in October — around 26 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (May, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1626 µg/m³May 167 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar9Good
Apr7Good
May7Good
Jun7Good
Jul11Good
Aug16Moderate
Sep21Moderate
Oct26Moderate
Nov20Moderate
Dec8Good
Location & terrain

Where is Mlangali?

Mlangali sits at 9.8°S, 34.5°E, 1,739 m above sea level, in Tanzania. The nearest listed city is Njombe, 56 km away.

IpindaKyelaMtwangoMahanjeIlembulaMakumbako

Topography around Mlangali

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

Within 3 km, the terrain around Mlangali has significant variations in elevation — a maximum elevation change of 484 m around an average of 1,830 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,049 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,371 m.

The land around Mlangali is covered by shrubs (34%), cropland (30%) and trees (25%) within 3 km, shrubs (45%) and trees (25%) within 16 km, and shrubs (26%), trees (25%) and water (24%) within 80 km.

3 km
484 m
16 km
2,049 m
80 km
2,371 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Njombe 56 km · Karonga 66 km · Ipinda 75 km · Kyela 76 km · Mtwango 91 km · Mahanje 91 km · Ilembula 98 km · Makumbako 109 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 Mlangali (-9.7833°, 34.5167°, elevation 1,739 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).