Kasulu weather in August

In August, Kasulu sees average daytime highs of 29°C and overnight lows near 17°C, with 11 mm of rain across 1.8 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 33% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 48 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Kasulu's 2nd-clearest and 1st-windiest month. For the whole year in context, see Kasulu's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
17°
3rd coldest
Rainfall
11 mm
1.8 wet days
Daylight
11 h 48 min
7:08 AM – 6:59 PM
Cloud cover
52%
2nd clearest
Wind
7 km/h
1st windiest
Solar energy
5.9 kWh/m²
Travel score
6.8
out of 10

Kasulu is city in Kigoma, Tanzania.

Density
271/km²
people per km²
Founded
1500

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 29°C through the month.

A typical August day in Kasulu reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, August runs about 1°C warmer than July and on par with September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12816
22816
32816
42816
52816
62816
72816
82817
92817
102817
112817
122917
132917
142917
152917
162917
172917
182917
192917
202917
212917
222917
232917
242917
252917
262917
272917
282917
292917
302917
312917

Kasulu weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 17°23528.312.23.8
Feb26° / 17°18924.312.14.0
Mar26° / 17°21427.3124.0
Apr25° / 17°17223.711.94.3
May26° / 17°6811.111.86.4
Jun27° / 16°14311.77.6
Jul27° / 16°30.811.87.9
Aug29° / 17°111.811.96.8
Sep29° / 18°366.4125.7
Oct28° / 18°1361712.14.9
Nov26° / 17°23125.512.24.0
Dec25° / 17°25728.912.33.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 26% of August, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
76040
86040
96040
106040
116040
126139
136139
146139
156139
166139
176139
186139
196139
206139
216040
226040
236040
246040
255941
265941
275941
285842
295743
305743
315545

Chance of precipitation in August

Any precipitation

Kasulu gets around 11 mm of rain over 1.8 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 7% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
94
105
115
125
135
145
156
166
176
186
197
207
217
228
238
249
259
2610
2710
2811
2912
3012
3113

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
172253
271263
371263
471263
571263
671272
771272
871272
971272
1070273
1170273
1270273
1370273
1470273
1571263
1671263
1771254
1871254
1972244
2071245
2172235
2271236
2371236
2471236
2570237
2670237
2768248
2868248
2967258
3065269
3164279

Wind in August

Winds average 7 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 48 min at the start of August to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over August. Sunrise moves from 7:12 AM to 7:02 AM, and sunset from 7:00 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:127:00
211.87:127:00
311.87:117:00
411.87:117:00
511.87:117:00
611.87:117:00
711.87:117:00
811.87:107:00
911.87:107:00
1011.87:107:00
1111.87:107:00
1211.87:096:59
1311.87:096:59
1411.87:096:59
1511.87:096:59
1611.87:086:59
1711.97:086:59
1811.97:086:59
1911.97:076:59
2011.97:076:59
2111.97:066:59
2211.97:066:58
2311.97:066:58
2411.97:056:58
2511.97:056:58
2611.97:056:58
2711.97:046:58
2811.97:046:57
2911.97:036:57
3011.97:036:57
3111.97:026:57

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.9 kWh/m².

For context, solar energy here swings from a low near 4.9 kWh/m² to a high of 6.25 kWh/m² in September across the year — August's 5.9 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.9Bright
165.9Bright
175.9Bright
186.0Bright
196.0Bright
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in August

Hazard calendar for Kasulu

In seasonPeak

None of Kasulu's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

Kasulu's rainy season runs October–April, when most of the year's rain falls.

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

Is August a good time to visit Kasulu?

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

6.8
Sightseeing
3rd-best month of the year
8.2
Beach & pool
1st-best month of the year

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

What to pack for Kasulu in August

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

In August, Kasulu sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kasulu in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kasulu peaks around March 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 14UV 16Aug 14UV 8
UV index (midday)Level
Jan10Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug8Very high
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Kasulu 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 Kasulu is worst in July — around 47 µg/m³ PM2.5 (poor), about 3.3× the cleanest month (April, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 2146 µg/m³Apr 1515 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb20Moderate
Mar17Moderate
Apr14Moderate
May18Moderate
Jun35Moderate
Jul47Poor
Aug43Poor
Sep36Poor
Oct23Moderate
Nov17Moderate
Dec16Moderate
Location & terrain

Where is Kasulu?

Kasulu sits at 4.6°S, 30.1°E, 1,310 m above sea level, in Tanzania. The nearest listed city is Mwandiga, 57 km away.

VyandaRumongeNgurukaGitegaKibondo

Topography around Kasulu

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

Within 3 km, the terrain around Kasulu has significant variations in elevation — a maximum elevation change of 288 m around an average of 1,320 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 629 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,720 m.

The land around Kasulu is covered by artificial surfaces (29%), cropland (27%) and trees (21%) within 3 km, grassland (49%) and cropland (28%) within 16 km, and grassland (35%), cropland (22%) and trees (21%) within 80 km.

3 km
288 m
16 km
629 m
80 km
1,720 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Mwandiga 57 km · Kigoma 62 km · Uvinza 67 km · Vyanda 76 km · Rumonge 100 km · Nguruka 120 km · Gitega 129 km · Kibondo 130 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 Kasulu (-4.5767°, 30.1025°, elevation 1,310 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).