Izazi weather in December

In December, Izazi sees average daytime highs of 31°C and overnight lows near 21°C, with 88 mm of rain across 12 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 33% 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 Izazi's 9th-clearest and 9th-windiest month. For the whole year in context, see Izazi's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
21°
12th coldest
Rainfall
88 mm
12 wet days
Daylight
12 h 24 min
6:21 AM – 6:46 PM
Cloud cover
60%
9th clearest
Wind
7 km/h
9th windiest
Solar energy
6.07 kWh/m²
Travel score
4.1
out of 10

Izazi is ward in Iringa Rural district, Iringa Region, Tanzania.

Density
37/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 30°C by the end.

A typical December day in Izazi reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, December runs about 2°C cooler than November and about 2°C warmer than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13321
23321
33321
43221
53221
63221
73221
83221
93221
103221
113221
123221
133221
143221
153121
163121
173121
183121
193121
203121
213121
223121
233121
243121
253121
263121
273021
283021
293021
303021
313021

How December really feels in Izazi

Once humidity and wind are folded in, December averages 9 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
9
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Izazi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°10116.312.44.2
Feb30° / 21°7613.712.24.3
Mar30° / 21°8815.3124.3
Apr30° / 20°47911.85.1
May30° / 19°4111.76.1
Jun29° / 17°0011.67.0
Jul28° / 16°0011.67.6
Aug29° / 16°0011.87.0
Sep31° / 17°00126.0
Oct32° / 19°40.512.24.9
Nov33° / 20°233.612.34.1
Dec31° / 21°881212.44.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36139
46040
56040
65941
75842
85743
95644
105545
115446
125248
135149
145149
154852
164852
174753
184654
194555
204555
214555
224456
234357
244357
254258
264258
274258
284159
294159
304159
314060

Chance of precipitation in December

Any precipitation

Izazi gets around 88 mm of rain over 12 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 39% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
120
221
321
422
523
625
726
827
929
1031
1133
1235
1337
1439
1541
1643
1745
1846
1947
2048
2149
2249
2350
2450
2550
2650
2750
2850
2950
3050
3150

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 32% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
110413712
29403813
39393813
49383814
58373916
68363917
77353918
87344019
96334021
106324022
115304124
125294125
135274127
144254229
154244230
164224132
174214134
184194136
194184038
204174039
214164040
224153942
234143943
244143944
254133845
264133746
274123747
283123649
293123550
303123451
313123352

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 8 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
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 6:15 AM to 6:28 AM, and sunset from 6:38 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:156:38
212.46:156:39
312.46:166:39
412.46:166:40
512.46:166:40
612.46:176:41
712.46:176:41
812.46:176:42
912.46:186:42
1012.46:186:43
1112.46:196:43
1212.46:196:44
1312.46:196:44
1412.46:206:45
1512.46:206:45
1612.46:216:46
1712.46:216:46
1812.46:226:47
1912.46:226:47
2012.46:236:48
2112.46:236:48
2212.46:236:49
2312.46:246:49
2412.46:246:50
2512.46:256:50
2612.46:256:50
2712.46:266:51
2812.46:266:51
2912.46:276:52
3012.46:276:52
3112.46:286:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.07 kWh/m².

For context, solar energy here swings from a low near 5.53 kWh/m² to a high of 7.15 kWh/m² in October across the year — December's 6.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.4Intense
56.4Intense
66.4Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Izazi

In seasonPeak

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

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

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Izazi?

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

4.1
Sightseeing
11th-best month of the year
6.2
Beach & pool
9th-best month of the year

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

What to pack for Izazi in December

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

In December, Izazi sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Izazi 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 Izazi peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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 13UV 15Jun 17UV 10
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Izazi 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 Izazi is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (May, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1920 µg/m³May 247 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar10Good
Apr8Good
May7Good
Jun7Good
Jul10Good
Aug15Moderate
Sep21Moderate
Oct18Moderate
Nov13Moderate
Dec8Good
Location & terrain

Where is Izazi?

Izazi sits at 7.2°S, 35.7°E, 727 m above sea level, in Tanzania. The nearest listed city is Ilula, 63 km away.

KibakweDodomaMpwapwaMafingaMikumiKilosa

Topography around Izazi

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

Within 3 km, the terrain around Izazi has only modest variations in elevation — a maximum elevation change of 73 m around an average of 729 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 713 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,911 m.

The land around Izazi is covered by shrubs (63%) and grassland (34%) within 3 km, shrubs (48%), water (25%) and grassland (20%) within 16 km, and shrubs (51%) and grassland (20%) within 80 km.

3 km
73 m
16 km
713 m
80 km
1,911 m
treesshrubsgrasslandcroplandwater
December weather nearby: Ilula 63 km · Iringa 63 km · Kibakwe 88 km · Dodoma 114 km · Mpwapwa 126 km · Mafinga 132 km · Mikumi 140 km · Kilosa 144 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 Izazi (-7.2°, 35.7333°, elevation 727 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).