Matongo weather in December

In December, Matongo sees average daytime highs of 28°C and overnight lows near 17°C, with 133 mm of rain across 18.7 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Matongo's 8th-clearest and 12th-windiest month. For the whole year in context, see Matongo's year-round climate.

Daytime high
28°
11th warmest
Overnight low
17°
3rd coldest
Rainfall
133 mm
18.7 wet days
Daylight
12 h 06 min
6:36 AM – 6:41 PM
Cloud cover
66%
8th clearest
Wind
6 km/h
12th windiest
Solar energy
5.67 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 28°C through the month.

A typical December day in Matongo reaches about 28°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12917
22917
32917
42917
52917
62917
72917
82817
92817
102817
112817
122817
132817
142817
152817
162817
172817
182817
192817
202817
212817
222817
232817
242817
252817
262817
272817
282817
292917
302917
312917

Matongo weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°9615.712.14.8
Feb30° / 17°7212.9124.4
Mar30° / 17°12316.3124.3
Apr29° / 17°15118.7124.3
May28° / 17°7813.711.95.4
Jun29° / 17°235.311.96.1
Jul29° / 17°103.211.96.1
Aug30° / 17°225125.6
Sep31° / 17°296.7125.0
Oct31° / 18°6110124.4
Nov29° / 17°14317.712.14.2
Dec28° / 17°13318.712.14.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43169
53268
63268
73466
83466
93664
103763
113862
123961
134060
144159
154060
164159
174258
184357
194357
204357
214357
224456
234555
244555
254555
264654
274654
284654
294654
304555
314654

Chance of precipitation in December

Any precipitation

Matongo gets around 133 mm of rain over 18.7 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 60% and peaks near 62% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
161
261
361
461
561
662
762
862
962
1062
1162
1262
1362
1462
1562
1662
1761
1861
1961
2060
2160
2259
2358
2458
2557
2657
2756
2856
2955
3055
3155

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 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1931582
2931582
3931582
4931582
5931582
6930592
7830602
8829612
9828622
10828622
11827632
12926632
13925642
14924652
15923662
161023661
171022671
181022671
191022671
201022671
211022671
221023661
231023661
241023661
251024651
261024651
271025641
281025641
291026631
301027612
311027612

Wind in December

Winds average 6 km/h in December, the calmest month.

Across December, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 6:29 AM to 6:43 AM, and sunset from 6:34 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:296:34
212.16:306:34
312.16:306:35
412.16:306:35
512.16:316:36
612.16:316:36
712.16:326:37
812.16:326:37
912.16:326:37
1012.16:336:38
1112.16:336:38
1212.16:346:39
1312.16:346:39
1412.16:356:40
1512.16:356:40
1612.16:366:41
1712.16:366:41
1812.16:366:42
1912.16:376:42
2012.16:376:42
2112.16:386:43
2212.16:386:43
2312.16:396:44
2412.16:396:44
2512.16:406:45
2612.16:406:45
2712.16:416:46
2812.16:416:46
2912.16:426:47
3012.16:426:47
3112.16:436:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.67 kWh/m².

For context, solar energy here swings from a low near 5.28 kWh/m² to a high of 6.35 kWh/m² in February across the year — December's 5.67 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Is December a good time to visit Matongo?

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

4.6
Sightseeing
7th-best month of the year
5.5
Beach & pool
10th-best month of the year

December is a reasonable time to visit Matongo for sightseeing.

What to pack for Matongo in December

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

In December, Matongo sees daytime highs around 28°C and nights near 17°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Matongo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Matongo peaks around March 17 at about 16 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 17UV 16Jun 18UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Matongo 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 Matongo is worst in July — around 46 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (October, 28 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1545 µg/m³Oct 2328 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb28Moderate
Mar30Moderate
Apr29Moderate
May31Moderate
Jun39Poor
Jul46Poor
Aug35Moderate
Sep31Moderate
Oct28Moderate
Nov28Moderate
Dec28Moderate
Location & terrain

Where is Matongo?

Matongo sits at 1.5°S, 34.5°E, 1,223 m above sea level, in Tanzania. The nearest listed city is Tarime, 22 km away.

Butiama

Topography around Matongo

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

Within 3 km, the terrain around Matongo has significant variations in elevation — a maximum elevation change of 260 m around an average of 1,275 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 698 m; within 80 km, large variations in elevation — a maximum elevation change of 989 m.

The land around Matongo is covered by grassland (46%) and shrubs (23%) within 3 km, grassland (37%) and shrubs (27%) within 16 km, and grassland (50%) and cropland (21%) within 80 km.

3 km
260 m
16 km
698 m
80 km
989 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Tarime 22 km · Sirari 24 km · Isebania 28 km · Kihancha 32 km · Migori 45 km · Mugumu 47 km · Awendo 62 km · Butiama 70 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 Matongo (-1.4677°, 34.5228°, elevation 1,223 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).