Nyamuswa weather in December

In December, Nyamuswa sees average daytime highs of 27°C and overnight lows near 18°C, with 173 mm of rain across 21.8 wet days and about 12.1 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 16% 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 Nyamuswa's 9th-clearest and 11th-windiest month. For the whole year in context, see Nyamuswa's year-round climate.

Daytime high
27°
12th warmest
Overnight low
18°
3rd coldest
Rainfall
173 mm
21.8 wet days
Daylight
12 h 06 min
6:37 AM – 6:43 PM
Cloud cover
68%
9th clearest
Wind
6 km/h
11th windiest
Solar energy
5.61 kWh/m²
Travel score
4.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Nyamuswa reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°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)
12818
22818
32818
42818
52818
62818
72818
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312818

Nyamuswa weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°1432012.14.9
Feb29° / 18°11317.112.14.5
Mar29° / 18°15019.8124.4
Apr28° / 18°16020.3124.6
May28° / 18°7312.911.95.7
Jun28° / 18°275.911.96.2
Jul29° / 18°133.211.96.3
Aug29° / 18°33611.95.8
Sep30° / 19°478.7125.1
Oct30° / 19°8814.2124.5
Nov28° / 18°16620.512.14.4
Dec27° / 18°17321.812.14.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63070
73169
83169
93268
103367
113565
123565
133664
143664
153763
163763
173862
183961
193961
203961
214060
224159
234159
244159
254159
264258
274258
284258
294258
304258
314258

Chance of precipitation in December

Any precipitation

Nyamuswa gets around 173 mm of rain over 21.8 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 70% and peaks near 73% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
172
272
372
472
572
673
773
873
973
1073
1173
1273
1373
1473
1573
1672
1772
1871
1971
2070
2170
2269
2368
2468
2567
2667
2766
2866
2966
3066
3166

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11126720
21126720
31116721
41116721
51116721
61106821
71106821
81106821
91106722
101106722
111106722
121106722
131106722
141106722
151106821
161106821
171106821
181106821
191106821
201106821
211106821
222106721
232106721
242106721
252106721
262106721
272106721
282106721
292106622
302106622
31296623

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 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
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
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 6:31 AM to 6:44 AM, and sunset from 6:37 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:316:37
212.16:316:37
312.16:316:38
412.16:326:38
512.16:326:38
612.16:336:39
712.16:336:39
812.16:336:40
912.16:346:40
1012.16:346:41
1112.16:356:41
1212.16:356:42
1312.16:356:42
1412.16:366:42
1512.16:366:43
1612.16:376:43
1712.16:376:44
1812.16:386:44
1912.16:386:45
2012.16:396:45
2112.16:396:46
2212.16:406:46
2312.16:406:47
2412.16:416:47
2512.16:416:48
2612.16:416:48
2712.16:426:49
2812.16:426:49
2912.16:436:49
3012.16:436:50
3112.16:446:50

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.61 kWh/m².

For context, solar energy here swings from a low near 5.43 kWh/m² to a high of 6.33 kWh/m² in February across the year — December's 5.61 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Nyamuswa

In seasonPeak

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

Nyamuswa's rainy season runs October–April, 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 Nyamuswa?

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

4.7
Sightseeing
7th-best month of the year
4.9
Beach & pool
12th-best month of the year

December is a reasonable time to visit Nyamuswa for sightseeing.

What to pack for Nyamuswa in December

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

In December, Nyamuswa sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Nyamuswa 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 Nyamuswa 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
Jun9Very high
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Nyamuswa 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 Nyamuswa is worst in July — around 20 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 1319 µg/m³Nov 1410 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb16Moderate
Mar13Moderate
Apr11Good
May12Good
Jun18Moderate
Jul20Moderate
Aug16Moderate
Sep15Moderate
Oct11Good
Nov10Good
Dec12Good
Location & terrain

Where is Nyamuswa?

Nyamuswa sits at 1.9°S, 34.0°E, 1,386 m above sea level, in Tanzania. The nearest listed city is Butiama, 16 km away.

TarimeMatongoMugumuNyakabindi

Topography around Nyamuswa

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

Within 3 km, the terrain around Nyamuswa has only modest variations in elevation — a maximum elevation change of 176 m around an average of 1,370 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 573 m; within 80 km, large variations in elevation — a maximum elevation change of 656 m.

The land around Nyamuswa is covered by cropland (57%) and shrubs (21%) within 3 km, cropland (53%) and shrubs (28%) within 16 km, and grassland (33%) and cropland (32%) within 80 km.

3 km
176 m
16 km
573 m
80 km
656 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Butiama 16 km · Bunda 21 km · Musoma 51 km · Kibara 69 km · Tarime 72 km · Matongo 74 km · Mugumu 76 km · Nyakabindi 82 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 Nyamuswa (-1.9°, 34.0167°, elevation 1,386 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).