Uvinza weather in September

In September, Uvinza sees average daytime highs of 31°C and overnight lows near 19°C, with 8 mm of rain across 1.8 wet days and about 12 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Uvinza's 4th-clearest and 1st-windiest month. For the whole year in context, see Uvinza's year-round climate.

Daytime high
31°
1st warmest
Overnight low
19°
11th coldest
Rainfall
8 mm
1.8 wet days
Daylight
12 hours
6:54 AM – 6:52 PM
Cloud cover
48%
4th clearest
Wind
9 km/h
1st windiest
Solar energy
6.33 kWh/m²
Travel score
5.2
out of 10

Uvinza is town in western Tanzania in the highlands.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Uvinza reaches about 31°C in the afternoon and slips back to 19°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13118
23118
33118
43118
53118
63118
73118
83118
93118
103118
113119
123119
133119
143119
153119
163219
173219
183219
193219
203219
213219
223219
233219
243219
253219
263219
273219
283219
293219
303219

Uvinza weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°15724.512.34.2
Feb28° / 18°11819.912.24.5
Mar27° / 18°14521.4124.6
Apr27° / 18°11617.411.95.1
May28° / 18°27511.87.0
Jun29° / 16°10.311.77.1
Jul29° / 16°10.211.77.0
Aug30° / 17°30.611.86.1
Sep31° / 19°81.8125.2
Oct31° / 19°578.812.14.7
Nov28° / 19°15019.512.24.5
Dec27° / 18°18724.812.34.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17030
27030
36931
46931
56931
66931
76832
86832
96832
106733
116733
126733
136733
146733
156733
166733
176733
186634
196634
206634
216535
226436
236337
246139
256139
266040
275941
285842
295743
305545

Chance of precipitation in September

Any precipitation

Uvinza gets around 8 mm of rain over 1.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 14% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
124
134
144
155
165
175
185
196
206
217
228
238
249
2510
2611
2712
2813
2913
3014

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732160
2732160
3722260
4722260
5712360
6712360
7702370
8692470
9692470
10682480
11672580
12672580
13672580
14662590
15662590
166525100
176525100
186525100
196425110
206425110
216225121
226125131
235926141
245826142
255726152
265626162
275327173
285227183
295028194
304828204

Wind in September

Winds average 9 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

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

Days grow by about 6 minutes over September. Sunrise moves from 7:01 AM to 6:47 AM, and sunset from 6:55 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.97:016:55
211.97:016:55
311.97:006:55
411.97:006:55
511.96:596:54
611.96:596:54
711.96:586:54
811.96:586:54
911.96:576:54
1011.96:576:53
1111.96:566:53
1212.06:566:53
1312.06:556:53
1412.06:556:52
1512.06:546:52
1612.06:546:52
1712.06:536:52
1812.06:536:51
1912.06:526:51
2012.06:526:51
2112.06:516:51
2212.06:516:51
2312.06:506:50
2412.06:496:50
2512.06:496:50
2612.06:486:50
2712.06:486:50
2812.06:486:49
2912.06:476:49
3012.06:476:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.33 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.94 kWh/m² to a high of 6.33 kWh/m² in September across the year — September's 6.33 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Uvinza

In seasonPeak

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

Uvinza's monsoon runs November–April, when most of the year's rain falls.

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

Is September a good time to visit Uvinza?

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

5.2
Sightseeing
5th-best month of the year
7.9
Beach & pool
4th-best month of the year

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

What to pack for Uvinza in September

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

In September, Uvinza sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Uvinza in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Uvinza peaks around March 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 16Aug 13UV 9
UV index (midday)Level
Jan12Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug9Very high
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Uvinza in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Uvinza is worst in July — around 37 µg/m³ PM2.5 (poor), about 4.1× the cleanest month (April, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodJul 2437 µg/m³Apr 219 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar12Good
Apr9Good
May10Good
Jun23Moderate
Jul37Poor
Aug37Poor
Sep25Moderate
Oct16Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Uvinza?

Uvinza sits at 5.1°S, 30.4°E, 996 m above sea level, in Tanzania. The nearest listed city is Kasulu, 67 km away.

NgurukaMwandigaKigomaVyandaMpandaKalemieRumonge

Topography around Uvinza

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

Within 3 km, the terrain around Uvinza has only modest variations in elevation — a maximum elevation change of 148 m around an average of 1,037 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 379 m; within 80 km, large variations in elevation — a maximum elevation change of 997 m.

The land around Uvinza is covered by shrubs (44%) and trees (22%) within 3 km, trees (40%), shrubs (30%) and cropland (20%) within 16 km, and trees (40%) and grassland (28%) within 80 km.

3 km
148 m
16 km
379 m
80 km
997 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Kasulu 67 km · Nguruka 72 km · Mwandiga 87 km · Kigoma 88 km · Vyanda 141 km · Mpanda 157 km · Kalemie 162 km · Rumonge 164 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 Uvinza (-5.1036°, 30.3911°, elevation 996 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).