Usangi weather in December

In December, Usangi sees average daytime highs of 30°C and overnight lows near 20°C, with 74 mm of rain across 14.6 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 29% of the time in December, and the air most often feels muggy.

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 Usangi's 4th-clearest and 2nd-windiest month. For the whole year in context, see Usangi's year-round climate.

Daytime high
30°
4th warmest
Overnight low
20°
10th coldest
Rainfall
74 mm
14.6 wet days
Daylight
12 h 12 min
6:19 AM – 6:32 PM
Cloud cover
57%
4th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.93 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 30°C through the month.

A typical December day in Usangi reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, December runs on par with November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153020
163020
173020
183020
193020
203020
213020
223020
233020
243020
253020
263020
273020
283020
293020
303020
313020

How December really feels in Usangi

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.

Usangi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°458.112.25.0
Feb31° / 20°416.512.14.6
Mar31° / 21°9313.8124.1
Apr29° / 20°12820.711.94.1
May27° / 19°8714.311.85.7
Jun26° / 17°133.911.87.1
Jul26° / 16°92.811.87.4
Aug27° / 16°11311.97.2
Sep28° / 17°92.4126.7
Oct30° / 19°326.312.15.6
Nov30° / 20°6914.112.24.6
Dec30° / 20°7414.612.24.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 30% of December, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55644
65644
75644
85644
95743
105743
115842
125842
135842
145842
155842
165842
175842
185941
195842
205941
215941
226040
236139
246139
256139
266337
276337
286337
296337
306337
316337

Chance of precipitation in December

Any precipitation

Usangi gets around 74 mm of rain over 14.6 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 47% and peaks near 54% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
153
254
354
454
554
654
754
853
953
1053
1152
1252
1351
1450
1549
1649
1748
1847
1946
2045
2144
2243
2342
2441
2540
2639
2738
2837
2936
3035
3134

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1014455
2014356
3014257
4014257
5024157
6024058
7024058
8033958
9033958
10043858
11043858
12053857
13053857
14053857
15063856
16063955
17063955
18064054
19064153
20074251
21074350
22074449
23074548
24074647
25074746
26174745
27174844
28184843
29184943
30184942
31185041

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 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
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:13 AM to 6:26 AM, and sunset from 6:25 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:136:25
212.26:136:25
312.26:146:26
412.26:146:26
512.26:156:27
612.26:156:27
712.26:156:28
812.26:166:28
912.26:166:29
1012.26:176:29
1112.26:176:30
1212.26:176:30
1312.26:186:30
1412.26:186:31
1512.26:196:31
1612.26:196:32
1712.26:206:32
1812.26:206:33
1912.26:206:33
2012.26:216:34
2112.26:216:34
2212.26:226:35
2312.26:226:35
2412.26:236:36
2512.26:236:36
2612.26:246:37
2712.26:246:37
2812.26:256:38
2912.26:256:38
3012.26:266:38
3112.26:266:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.93 kWh/m².

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 6.68 kWh/m² in February across the year — December's 5.93 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in December

Hazard calendar for Usangi

In seasonPeak

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

Usangi's rainy season runs March–May, 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 Usangi?

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

4.6
Sightseeing
8th-best month of the year
6.3
Beach & pool
8th-best month of the year

December is a reasonable time to visit Usangi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Usangi in December

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

In December, Usangi sees daytime highs around 30°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Usangi 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 Usangi peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 19UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Usangi?

Usangi sits at 3.7°S, 37.7°E, 1,337 m above sea level, in Tanzania. The nearest listed city is Lembeni, 11 km away.

Boma la NgombeMerelaniTarakeaMbuguni

Topography around Usangi

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

Within 3 km, the terrain around Usangi has large variations in elevation — a maximum elevation change of 1,099 m around an average of 1,376 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,400 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,350 m.

The land around Usangi is covered by trees (79%) within 3 km, shrubs (38%) and trees (33%) within 16 km, and shrubs (48%) and grassland (27%) within 80 km.

3 km
1,099 m
16 km
1,400 m
80 km
5,350 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Lembeni 11 km · Taveta 34 km · Same 41 km · Moshi 54 km · Boma la Ngombe 70 km · Merelani 78 km · Tarakea 79 km · Mbuguni 81 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 Usangi (-3.7°, 37.6667°, elevation 1,337 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).