Nyanza weather in December

In December, Nyanza sees average daytime highs of 24°C and overnight lows near 14°C, with 80 mm of rain across 15.7 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 5th-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 comfortable.

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 Nyanza's 8th-clearest and 10th-windiest month. For the whole year in context, see Nyanza's year-round climate.

Daytime high
24°
8th warmest
Overnight low
14°
1st coldest
Rainfall
80 mm
15.7 wet days
Daylight
12 h 06 min
5:53 AM – 6:01 PM
Cloud cover
76%
8th clearest
Wind
5 km/h
10th windiest
Solar energy
5.24 kWh/m²
Travel score
5.8
out of 10

Nyanza is city in Rwanda.

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 Nyanza reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°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 on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162414
172414
182414
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302514
312514

Nyanza weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°7314.612.15.9
Feb25° / 14°6813.412.15.8
Mar25° / 14°9118125.4
Apr24° / 14°1212311.94.6
May24° / 14°6414.211.96.1
Jun24° / 14°12311.97.9
Jul25° / 14°4111.98.2
Aug26° / 15°173.211.97.6
Sep26° / 15°387.9126.8
Oct25° / 14°9417.212.15.5
Nov24° / 14°10520.712.14.9
Dec24° / 14°8015.712.15.8

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 16% of December, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21684
31684
41783
51783
61882
71882
81981
91981
102179
112278
122278
132377
142377
152377
162377
172674
182575
192674
202575
212575
222476
232476
242476
252476
262476
272476
282377
292377
302377
312377

Chance of precipitation in December

Any precipitation

Nyanza gets around 80 mm of rain over 15.7 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 51% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
260
359
459
558
656
755
854
953
1052
1151
1250
1350
1449
1549
1648
1748
1848
1948
2048
2148
2248
2348
2448
2549
2649
2749
2850
2950
3050
3150

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the comfortable band about 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
15878
25878
36868
46877
56877
67867
78857
88857
99847
109856
1110846
1210846
1311836
1411836
1511836
1611836
1711836
1811836
1911836
2011836
2111827
2211827
2311827
2411827
2510837
2610837
2710828
2810828
2910828
3010828
3110828

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 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 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 5:47 AM to 6:00 AM, and sunset from 5:55 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:475:55
212.15:475:55
312.15:485:55
412.15:485:56
512.15:485:56
612.15:495:57
712.15:495:57
812.15:505:58
912.15:505:58
1012.15:505:58
1112.15:515:59
1212.15:515:59
1312.15:526:00
1412.15:526:00
1512.15:536:01
1612.15:536:01
1712.15:546:02
1812.15:546:02
1912.15:546:03
2012.15:556:03
2112.15:556:04
2212.15:566:04
2312.15:566:05
2412.15:576:05
2512.15:576:05
2612.15:586:06
2712.15:586:06
2812.15:596:07
2912.15:596:07
3012.16:006:08
3112.16:006:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.24 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 5.71 kWh/m² in February across the year — December's 5.24 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
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 Nyanza?

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

5.8
Sightseeing
7th-best month of the year
5.0
Beach & pool
9th-best month of the year

December is a reasonable time to visit Nyanza for sightseeing.

What to pack for Nyanza in December

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

In December, Nyanza sees daytime highs around 24°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Nyanza in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nyanza peaks around March 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 16Jun 21UV 10
UV index (midday)Level
Jan11Extreme
Feb15Extreme
Mar17Extreme
Apr16Extreme
May13Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec11Extreme

Air quality in Nyanza 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 Nyanza is worst in January — around 82 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyJan 1981 µg/m³May 966 µg/m³
PM2.5 (µg/m³)Level
Jan82Unhealthy
Feb80Unhealthy
Mar73Unhealthy
Apr66Unhealthy
May66Unhealthy
Jun75Unhealthy
Jul67Unhealthy
Aug72Unhealthy
Sep72Unhealthy
Oct68Unhealthy
Nov72Unhealthy
Dec77Unhealthy
Location & terrain

Where is Nyanza?

Nyanza sits at 2.4°S, 29.8°E, 1,792 m above sea level, in Rwanda. The nearest listed city is Ruhango, 15 km away.

RuhangoGikongoroNzegaButareGitaramaMuginaMuhangaKirundo

Topography around Nyanza

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

Within 3 km, the terrain around Nyanza has significant variations in elevation — a maximum elevation change of 262 m around an average of 1,751 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 724 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,818 m.

The land around Nyanza is covered by cropland (51%) and grassland (22%) within 3 km, cropland (59%) and grassland (28%) within 16 km, and cropland (33%), trees (27%) and grassland (25%) within 80 km.

3 km
262 m
16 km
724 m
80 km
1,818 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Ruhango 15 km · Gikongoro 23 km · Nzega 26 km · Butare 27 km · Gitarama 31 km · Mugina 35 km · Muhanga 37 km · Kirundo 46 km

Rwanda travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / G
230 V · 50 Hz
Prices
≈ 27% of US
price level, 2025
GDP per capita
$1,124
2025
Happiness
3.3 / 10
World Happiness, 2021
Homicide rate
3.6
per 100k, 2020
Road deaths
29.4
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 417
Religion
Catholic 40%Pentecostal 21%Protestant 15%Adventist 12%

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 Nyanza (-2.3519°, 29.7509°, elevation 1,792 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).