Chala weather in December

In December, Chala sees average daytime highs of 24°C and overnight lows near 17°C, with 188 mm of rain across 23.2 wet days and about 12.4 hours of daylight. It is the 7th-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 6% of the time in December, and the air most often feels humid.

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 Chala's 10th-clearest and 10th-windiest month. For the whole year in context, see Chala's year-round climate.

Daytime high
24°
7th warmest
Overnight low
17°
9th coldest
Rainfall
188 mm
23.2 wet days
Daylight
12 h 24 min
6:38 AM – 7:04 PM
Cloud cover
83%
10th clearest
Wind
6 km/h
10th windiest
Solar energy
5.13 kWh/m²
Travel score
4.6
out of 10

Chala is human settlement in 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 Chala reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°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)
12518
22518
32518
42517
52517
62517
72517
82517
92517
102517
112417
122417
132417
142417
152417
162417
172417
182417
192417
202417
212417
222417
232417
242417
252417
262417
272417
282417
292417
302417
312417

Chala weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 17°24026.612.44.2
Feb24° / 17°19222.112.24.4
Mar24° / 17°18223.812.14.6
Apr24° / 17°8316.711.85.7
May24° / 16°164.211.78.2
Jun24° / 14°10.111.69.0
Jul24° / 14°0011.69.2
Aug26° / 16°00.111.88.9
Sep27° / 17°30.6128.3
Oct28° / 19°183.412.27.3
Nov26° / 18°8312.312.35.9
Dec24° / 17°18823.212.44.6

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 8% of December, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32080
42080
51882
61882
71783
81783
91783
101585
111585
121585
131486
141486
151387
161387
171387
181387
191387
201387
211387
221387
231387
241387
251387
261288
271288
281288
291288
301288
311189

Chance of precipitation in December

Any precipitation

Chala gets around 188 mm of rain over 23.2 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 75% and peaks near 84% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
159
260
361
462
563
665
766
867
969
1070
1171
1273
1374
1475
1577
1678
1779
1879
1980
2080
2181
2281
2382
2482
2582
2682
2783
2883
2983
3083
3184

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 76% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1735580
2634600
3634600
4633610
5532630
6531640
7530650
8429670
9427690
10326710
11325720
12324730
13223750
14222760
15221770
16119800
17118810
18118810
19117820
20116830
21116821
22115831
23115831
24114841
25014851
26013861
27013861
28012871
29012871
30012862
31011872

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
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 6:32 AM to 6:45 AM, and sunset from 6:57 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:326:57
212.46:336:57
312.46:336:58
412.46:336:58
512.46:346:59
612.46:346:59
712.46:347:00
812.46:357:00
912.46:357:01
1012.46:357:01
1112.46:367:02
1212.46:367:02
1312.46:377:03
1412.46:377:03
1512.46:387:04
1612.46:387:04
1712.46:387:05
1812.46:397:05
1912.46:397:06
2012.46:407:06
2112.46:407:07
2212.46:417:07
2312.46:417:08
2412.46:427:08
2512.46:427:09
2612.46:437:09
2712.46:437:09
2812.46:447:10
2912.46:447:10
3012.46:457:11
3112.46:457:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.13 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.13 kWh/m² to a high of 6.62 kWh/m² in September across the year — December's 5.13 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in December

Hazard calendar for Chala

In seasonPeak

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

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

Chala's monsoon runs December–March, 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 Chala?

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

4.6
Sightseeing
9th-best month of the year
4.1
Beach & pool
9th-best month of the year

December is a reasonable time to visit Chala for sightseeing.

What to pack for Chala in December

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

In December, Chala sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Chala 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 Chala peaks around March 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 18UV 10
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May11Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Chala 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 Chala is worst in August — around 36 µg/m³ PM2.5 (poor), about 4.8× the cleanest month (April, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 2135 µg/m³Apr 237 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar9Good
Apr7Good
May7Good
Jun16Moderate
Jul25Moderate
Aug36Poor
Sep34Moderate
Oct19Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Chala?

Chala sits at 7.6°S, 31.3°E, 1,765 m above sea level, in Tanzania. The nearest listed city is Namanyere, 25 km away.

KirandoMataiKitukuMpulunguLaela

Topography around Chala

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

Within 3 km, the terrain around Chala has large variations in elevation — a maximum elevation change of 682 m around an average of 1,876 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,045 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,666 m.

The land around Chala is covered by cropland (43%) and grassland (30%) within 3 km, cropland (55%) and grassland (24%) within 16 km, and trees (30%), cropland (24%) and grassland (20%) within 80 km.

3 km
682 m
16 km
1,045 m
80 km
1,666 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Namanyere 25 km · Usevia 54 km · Sumbawanga 57 km · Kirando 76 km · Matai 84 km · Kituku 117 km · Mpulungu 132 km · Laela 139 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 Chala (-7.5833°, 31.2667°, elevation 1,765 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).