Nyanza weather in August

In August, Nyanza sees average daytime highs of 26°C and overnight lows near 15°C, with 17 mm of rain across 3.2 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 10th-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 17% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 54 min at the start of August to 12 hours by month's end. Set against the rest of the year, August is Nyanza's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Nyanza's year-round climate.

Daytime high
26°
2nd warmest
Overnight low
15°
12th coldest
Rainfall
17 mm
3.2 wet days
Daylight
11 h 54 min
6:07 AM – 6:03 PM
Cloud cover
64%
2nd clearest
Wind
6 km/h
2nd windiest
Solar energy
5.2 kWh/m²
Travel score
7.6
out of 10

Nyanza is city in Rwanda.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Nyanza reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°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, August runs about 1°C warmer than July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12514
22514
32515
42515
52515
62515
72515
82515
92515
102515
112515
122515
132615
142615
152615
162615
172615
182615
192615
202615
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615
312615

Nyanza weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33664
43664
53664
63763
73763
83862
93862
103862
114060
124159
134159
144159
154258
164258
174258
184258
194258
204258
214258
224159
234159
244159
253961
263961
273961
283862
293862
303763
313763

Chance of precipitation in August

Any precipitation

Nyanza gets around 17 mm of rain over 3.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
77
87
98
108
118
129
139
1410
1510
1610
1711
1811
1912
2012
2112
2213
2313
2413
2514
2615
2716
2817
2918
3019
3120

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
190100
290100
390100
490100
589110
689110
789110
889110
988120
1088120
1187130
1286140
1386140
1485150
1585150
1684160
1784160
1883170
1983170
2082180
2181190
2281190
2380200
2479210
2578220
2677230
2776240
2875250
2973261
3072271
3171281

Wind in August

Winds average 6 km/h in August.

Across August, 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 August

DaylightNight

Daylight runs from about 11 h 54 min at the start of August to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over August. Sunrise moves from 6:10 AM to 6:02 AM, and sunset from 6:04 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:106:04
211.96:106:04
311.96:106:04
411.96:106:04
511.96:106:04
611.96:106:04
711.96:096:04
811.96:096:04
911.96:096:04
1011.96:096:04
1111.96:096:03
1211.96:086:03
1311.96:086:03
1411.96:086:03
1511.96:086:03
1611.96:076:03
1711.96:076:03
1811.96:076:02
1911.96:076:02
2011.96:066:02
2111.96:066:02
2211.96:066:02
2311.96:056:02
2411.96:056:01
2511.96:056:01
2611.96:046:01
2711.96:046:01
2811.96:046:00
2911.96:036:00
3012.06:036:00
3112.06:026:00

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.2 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 — August's 5.2 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in August

Is August a good time to visit Nyanza?

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

7.6
Sightseeing
3rd-best month of the year
7.1
Beach & pool
2nd-best month of the year

August is one of the better times to visit Nyanza for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nyanza in August

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

In August, Nyanza sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Nyanza in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).