Usevia weather in December

In December, Usevia sees average daytime highs of 29°C and overnight lows near 20°C, with 104 mm of rain across 19.1 wet days and about 12.4 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 6% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Usevia's 10th-clearest and 11th-windiest month. For the whole year in context, see Usevia's year-round climate.

Daytime high
29°
10th warmest
Overnight low
20°
10th coldest
Rainfall
104 mm
19.1 wet days
Daylight
12 h 24 min
6:39 AM – 7:04 PM
Cloud cover
80%
10th clearest
Wind
5 km/h
11th windiest
Solar energy
5.26 kWh/m²
Travel score
4.2
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 Usevia reaches about 29°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°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)
13021
23021
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312820

How December really feels in Usevia

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.

Usevia 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° / 20°9919.412.44.3
Feb29° / 20°7815.612.24.3
Mar29° / 20°8517.2124.4
Apr29° / 20°439.611.85.4
May30° / 20°5111.76.3
Jun29° / 18°0011.67.1
Jul29° / 17°0011.67.5
Aug30° / 19°0011.86.5
Sep32° / 20°10.1125.2
Oct33° / 22°132.712.24.1
Nov31° / 21°6811.612.34.1
Dec29° / 20°10419.112.44.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% 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 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32377
42377
52377
62278
72278
82080
92080
101981
111981
121981
131981
141882
151882
161783
171783
181783
191783
201783
211783
221783
231783
241882
251882
261882
271882
281882
291882
301882
311882

Chance of precipitation in December

Any precipitation

Usevia gets around 104 mm of rain over 19.1 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 61% and peaks near 65% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
253
354
454
555
656
757
858
958
1059
1160
1261
1361
1462
1563
1663
1764
1864
1964
2065
2165
2265
2365
2465
2565
2665
2765
2865
2965
3065
3165

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13114441
23104442
33104443
4394444
5384445
6384346
7384248
8274149
9274051
10263953
11263854
12263755
13163657
14163558
15153460
16153361
17153262
18153163
19153064
20043066
21043066
22042967
23042967
24032968
25032968
26032968
27032968
28022870
29022870
30022870
31022870

Wind in December

Winds average 5 km/h in December.

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
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 24 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 6:33 AM to 6:46 AM, and sunset from 6:56 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:336:56
212.46:346:57
312.46:346:57
412.46:346:58
512.46:356:58
612.46:356:59
712.46:356:59
812.46:367:00
912.46:367:00
1012.46:367:01
1112.46:377:01
1212.46:377:02
1312.46:387:02
1412.46:387:03
1512.46:387:03
1612.46:397:04
1712.46:397:04
1812.46:407:05
1912.46:407:05
2012.46:417:05
2112.46:417:06
2212.46:427:06
2312.46:427:07
2412.46:437:07
2512.46:437:08
2612.46:447:08
2712.46:447:09
2812.46:457:09
2912.46:457:10
3012.46:467:10
3112.46:467:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.26 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.26 kWh/m² to a high of 6.7 kWh/m² in September across the year — December's 5.26 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Is December a good time to visit Usevia?

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

4.2
Sightseeing
10th-best month of the year
5.3
Beach & pool
11th-best month of the year

December is a reasonable time to visit Usevia for sightseeing.

What to pack for Usevia in December

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

In December, Usevia sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Usevia 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 Usevia peaks around March 11 at about 16 (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 11UV 16Jun 19UV 10
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug10Very high
Sep12Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Usevia 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 Usevia is worst in August — around 40 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (April, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodAug 1339 µg/m³Apr 218 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr8Good
May8Good
Jun24Moderate
Jul36Poor
Aug40Poor
Sep29Moderate
Oct17Moderate
Nov9Good
Dec9Good
Location & terrain

Where is Usevia?

Usevia sits at 7.1°S, 31.2°E, 928 m above sea level, in Tanzania. The nearest listed city is Namanyere, 51 km away.

KirandoMpandaSumbawangaKitukuMataiBaudhuinville

Topography around Usevia

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

Within 3 km, the terrain around Usevia has only modest variations in elevation — a maximum elevation change of 34 m around an average of 931 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 935 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,561 m.

The land around Usevia is covered by cropland (54%) and grassland (35%) within 3 km, cropland (30%), trees (25%) and grassland (24%) within 16 km, and trees (45%) and grassland (20%) within 80 km.

3 km
34 m
16 km
935 m
80 km
1,561 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Namanyere 51 km · Chala 54 km · Kirando 78 km · Mpanda 86 km · Sumbawanga 105 km · Kituku 125 km · Matai 137 km · Baudhuinville 165 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 Usevia (-7.1°, 31.2333°, elevation 928 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).