Mwandiga weather in September

In September, Mwandiga sees average daytime highs of 29°C and overnight lows near 21°C, with 38 mm of rain across 6.7 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 29°C through the month. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels humid.

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 Mwandiga's 4th-clearest and 1st-windiest month. For the whole year in context, see Mwandiga's year-round climate.

Daytime high
29°
1st warmest
Overnight low
21°
11th coldest
Rainfall
38 mm
6.7 wet days
Daylight
12 hours
6:56 AM – 6:55 PM
Cloud cover
56%
4th clearest
Wind
7 km/h
1st windiest
Solar energy
6.44 kWh/m²
Travel score
5.7
out of 10

Mwandiga is ward in Kigoma District, Kigoma Region.

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 29°C through the month.

A typical September day in Mwandiga reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12920
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262921
272921
282921
292921
302921

Mwandiga 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
Jan26° / 20°30129.512.23.6
Feb26° / 20°24825.612.23.8
Mar26° / 20°32529.2123.6
Apr26° / 20°31328.311.93.6
May27° / 20°13818.611.85.3
Jun27° / 19°183.711.77.4
Jul28° / 19°30.811.77.9
Aug29° / 20°101.811.86.8
Sep29° / 21°386.7125.7
Oct28° / 21°17820.312.14.6
Nov26° / 20°32327.912.23.7
Dec25° / 20°35030.312.33.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36040
45941
55941
65842
75743
85743
95743
105644
115644
125644
135644
145545
155644
165545
175644
185545
195446
205446
215347
225149
235050
244852
254852
264654
274555
284456
294258
304159

Chance of precipitation in September

Any precipitation

Mwandiga gets around 38 mm of rain over 6.7 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 23% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
113
214
314
415
516
616
717
817
918
1019
1119
1220
1320
1421
1521
1622
1722
1823
1923
2024
2125
2226
2328
2429
2531
2633
2735
2836
2938
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11448327
21347347
31246357
41245367
51144378
61043388
71042399
8942409
98414110
108404210
117394311
127384411
136374412
146364513
156364514
165354514
175344515
185344616
195334617
205324618
214314519
224304520
234294522
244284524
254264426
264254427
274244329
284224331
293214233
303194236

Wind in September

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

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 7:04 AM to 6:50 AM, and sunset from 6:58 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.97:046:58
211.97:036:58
311.97:036:58
411.97:026:58
511.97:026:57
611.97:016:57
711.97:016:57
811.97:016:57
911.97:006:57
1011.97:006:56
1112.06:596:56
1212.06:596:56
1312.06:586:56
1412.06:576:55
1512.06:576:55
1612.06:566:55
1712.06:566:55
1812.06:556:54
1912.06:556:54
2012.06:546:54
2112.06:546:54
2212.06:536:54
2312.06:536:53
2412.06:526:53
2512.06:526:53
2612.06:516:53
2712.06:516:52
2812.06:506:52
2912.06:506:52
3012.06:506:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.44 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.01 kWh/m² to a high of 6.44 kWh/m² in September across the year — September's 6.44 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.3Intense
Planning a trip in September

Hazard calendar for Mwandiga

In seasonPeak

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

Mwandiga'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 September a good time to visit Mwandiga?

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

5.7
Sightseeing
4th-best month of the year
7.4
Beach & pool
4th-best month of the year

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

What to pack for Mwandiga in September

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

In September, Mwandiga sees daytime highs around 29°C and nights near 21°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Mwandiga in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Mwandiga peaks around March 15 at about 15 (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 15UV 15Aug 14UV 8
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug7Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Mwandiga 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 Mwandiga 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 Mwandiga?

Mwandiga sits at 4.8°S, 29.7°E, 871 m above sea level, in Tanzania. The nearest listed city is Kigoma, 6.0 km away.

VyandaUvinzaRumongeKalemieNgurukaGitega

Topography around Mwandiga

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

Within 3 km, the terrain around Mwandiga has significant variations in elevation — a maximum elevation change of 274 m around an average of 856 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 842 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,930 m.

The land around Mwandiga is covered by cropland (42%) and grassland (26%) within 3 km, water (36%) and trees (23%) within 16 km, and water (43%) and grassland (25%) within 80 km.

3 km
274 m
16 km
842 m
80 km
1,930 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Kigoma 6.0 km · Kasulu 57 km · Vyanda 81 km · Uvinza 87 km · Rumonge 98 km · Kalemie 134 km · Nguruka 156 km · Gitega 159 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 Mwandiga (-4.83°, 29.6581°, elevation 871 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).