Rulenge weather in December

In December, Rulenge sees average daytime highs of 26°C and overnight lows near 16°C, with 150 mm of rain across 21.9 wet days and about 12.2 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 5% 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 12 min by month's end. Set against the rest of the year, December is Rulenge's 10th-clearest and 12th-windiest month. For the whole year in context, see Rulenge's year-round climate.

Daytime high
26°
11th warmest
Overnight low
16°
1st coldest
Rainfall
150 mm
21.9 wet days
Daylight
12 h 12 min
6:49 AM – 6:58 PM
Cloud cover
77%
10th clearest
Wind
5 km/h
12th windiest
Solar energy
5.32 kWh/m²
Travel score
4.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Rulenge reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152616
162616
172616
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302616
312616

Rulenge weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°1191912.15.1
Feb27° / 16°981712.15.1
Mar26° / 16°13421.2124.8
Apr26° / 16°15822.211.94.5
May26° / 16°6110.511.96.4
Jun27° / 16°71.311.87.6
Jul27° / 16°30.511.97.7
Aug28° / 17°193.211.96.8
Sep28° / 17°418.7126.0
Oct27° / 17°10816.312.15.4
Nov26° / 16°17223.412.14.4
Dec26° / 16°15021.912.24.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31684
41684
51684
61783
71783
81882
91882
101981
112080
122179
132179
142278
152278
162278
172377
182377
192377
202377
212377
222377
232377
242377
252476
262476
272476
282476
292575
302575
312575

Chance of precipitation in December

Any precipitation

Rulenge gets around 150 mm of rain over 21.9 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 70% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
179
279
379
478
578
677
776
876
975
1074
1173
1272
1372
1471
1570
1669
1769
1868
1967
2067
2166
2266
2365
2465
2565
2664
2764
2864
2964
3064
3165

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
112880
212880
312880
413870
513870
614860
714860
815850
916840
1017830
1117830
1218820
1318820
1419810
1519810
1619810
1719810
1819810
1919810
2019810
2118820
2218820
2318820
2417830
2517830
2616840
2716840
2815850
2915850
3015850
3114851

Wind in December

Winds average 5 km/h in December, the calmest month.

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

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
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 06 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 6 minutes over December. Sunrise moves from 6:43 AM to 6:56 AM, and sunset from 6:52 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:436:52
212.16:436:52
312.16:446:52
412.16:446:53
512.16:446:53
612.26:456:54
712.26:456:54
812.26:456:55
912.26:466:55
1012.26:466:56
1112.26:476:56
1212.26:476:56
1312.26:486:57
1412.26:486:57
1512.26:486:58
1612.26:496:58
1712.26:496:59
1812.26:506:59
1912.26:507:00
2012.26:517:00
2112.26:517:01
2212.26:527:01
2312.26:527:02
2412.26:537:02
2512.26:537:03
2612.26:547:03
2712.26:547:03
2812.26:557:04
2912.26:557:04
3012.26:567:05
3112.26:567:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.32 kWh/m².

For context, solar energy here swings from a low near 5.16 kWh/m² to a high of 5.91 kWh/m² in February across the year — December's 5.32 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Rulenge

In seasonPeak

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

Rulenge'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 Rulenge?

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

4.8
Sightseeing
9th-best month of the year
4.5
Beach & pool
10th-best month of the year

December is a reasonable time to visit Rulenge for sightseeing.

What to pack for Rulenge in December

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

In December, Rulenge sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

UV index in Rulenge 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 Rulenge peaks around March 14 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 14UV 16Jun 19UV 10
UV index (midday)Level
Jan12Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Rulenge 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 Rulenge is worst in July — around 47 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (April, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1246 µg/m³Apr 1624 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb32Moderate
Mar27Moderate
Apr24Moderate
May27Moderate
Jun45Poor
Jul47Poor
Aug40Poor
Sep33Moderate
Oct27Moderate
Nov27Moderate
Dec29Moderate
Location & terrain

Where is Rulenge?

Rulenge sits at 2.7°S, 30.6°E, 1,422 m above sea level, in Tanzania. The nearest listed city is Kabanga, 20 km away.

Kakonko

Topography around Rulenge

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

Within 3 km, the terrain around Rulenge has only modest variations in elevation — a maximum elevation change of 194 m around an average of 1,424 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 399 m; within 80 km, large variations in elevation — a maximum elevation change of 911 m.

The land around Rulenge is covered by shrubs (30%), grassland (29%) and cropland (23%) within 3 km, grassland (38%), shrubs (26%) and cropland (26%) within 16 km, and grassland (30%), cropland (27%) and shrubs (20%) within 80 km.

3 km
194 m
16 km
399 m
80 km
911 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Kabanga 20 km · Bugarama 21 km · Ngara 23 km · Kirundo 61 km · Kibungo 63 km · Cendajuru 64 km · Karusi 67 km · Kakonko 73 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 Rulenge (-2.7175°, 30.6325°, elevation 1,422 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).