Dumila weather in September

In September, Dumila sees average daytime highs of 29°C and overnight lows near 18°C, with 14 mm of rain across 4.3 wet days and about 12 hours of daylight. It is the 7th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 22% 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 Dumila's 5th-clearest and 3rd-windiest month. For the whole year in context, see Dumila's year-round climate.

Daytime high
29°
7th warmest
Overnight low
18°
4th coldest
Rainfall
14 mm
4.3 wet days
Daylight
12 hours
6:26 AM – 6:24 PM
Cloud cover
55%
5th clearest
Wind
6 km/h
3rd windiest
Solar energy
5.54 kWh/m²
Travel score
6.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 28°C in the first days to 30°C by the end.

A typical September day in Dumila reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°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, September runs about 2°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12817
22817
32817
42817
52817
62817
72817
82817
92817
102817
112918
122918
132918
142918
152918
162918
172918
182918
192918
202918
212918
222918
232918
242918
253018
263018
273018
283018
293018
303018

How September really feels in Dumila

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Dumila weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°15015.912.33.7
Feb31° / 22°14614.112.23.8
Mar30° / 22°16322.6123.6
Apr28° / 21°15224.411.94.1
May27° / 19°7615.611.75.8
Jun26° / 17°195.511.67.3
Jul26° / 16°133.711.77.5
Aug27° / 17°185.611.87.1
Sep29° / 18°144.3126.3
Oct30° / 19°417.712.15.2
Nov31° / 21°6012.112.34.3
Dec32° / 22°11915.212.43.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 33% of September, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24852
34852
44753
54753
64852
74951
84951
95050
105050
115050
125050
135149
145248
155248
165446
175446
185545
195743
205743
215842
226040
236139
246238
256337
266337
276436
286436
296337
306337

Chance of precipitation in September

Any precipitation

Dumila gets around 14 mm of rain over 4.3 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 15% and peaks near 17% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
115
215
315
415
514
614
714
814
915
1015
1115
1215
1314
1414
1514
1614
1714
1814
1914
2014
2114
2214
2314
2414
2515
2615
2716
2816
2917
3017

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1249491
2248491
3148501
4148501
5147511
6147511
7147511
8146521
9146521
10146521
11145531
12144532
13144532
14143542
15142552
16141553
17140563
18139573
19138574
20138574
21137575
22136585
23135586
24134587
25133588
26132589
27130609
281296010
291286011
301276012

Wind in September

Winds average 6 km/h in September.

Across September, 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.

0246810151015202530
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
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 6:34 AM to 6:18 AM, and sunset from 6:27 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:346:27
211.96:346:26
311.96:336:26
411.96:326:26
511.96:326:26
611.96:316:26
711.96:316:26
811.96:306:25
911.96:306:25
1011.96:296:25
1111.96:296:25
1211.96:286:25
1311.96:286:24
1412.06:276:24
1512.06:276:24
1612.06:266:24
1712.06:256:24
1812.06:256:24
1912.06:246:23
2012.06:246:23
2112.06:236:23
2212.06:236:23
2312.06:226:23
2412.06:226:22
2512.06:216:22
2612.06:216:22
2712.06:206:22
2812.06:196:22
2912.06:196:22
3012.06:186:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.48 kWh/m² to a high of 6.17 kWh/m² in February across the year — September's 5.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Dumila

In seasonPeak

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

Dumila's rainy season runs December–May, 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 Dumila?

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

6.3
Sightseeing
4th-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Dumila in September

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

In September, Dumila sees daytime highs around 29°C and nights near 18°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Dumila 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 Dumila peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 12UV 15Jun 17UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Dumila 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 Dumila is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 2319 µg/m³Nov 1910 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar12Moderate
Apr11Good
May12Good
Jun14Moderate
Jul19Moderate
Aug19Moderate
Sep18Moderate
Oct13Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Dumila?

Dumila sits at 6.4°S, 37.3°E, 505 m above sea level, in Tanzania. The nearest listed city is Magole, 3.0 km away.

Kibaigwa

Topography around Dumila

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

Within 3 km, the terrain around Dumila has only modest variations in elevation — a maximum elevation change of 64 m around an average of 436 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 906 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,097 m.

The land around Dumila is covered by cropland (43%) and shrubs (22%) within 3 km, cropland (35%), trees (30%) and shrubs (23%) within 16 km, and trees (40%), shrubs (26%) and cropland (24%) within 80 km.

3 km
64 m
16 km
906 m
80 km
2,097 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Magole 3.0 km · Msowero 23 km · Lubata 34 km · Madizini 42 km · Geiro 59 km · Morogoro 60 km · Kilosa 64 km · Kibaigwa 84 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 Dumila (-6.3839°, 37.3433°, elevation 505 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).