Dar es Salaam weather in September

In September, Dar es Salaam sees average daytime highs of 28°C and overnight lows near 22°C, with 23 mm of rain across 7.4 wet days and about 12 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 65% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Dar es Salaam's 1st-clearest and 6th-windiest month. For the whole year in context, see Dar es Salaam's year-round climate.

Daytime high
28°
9th warmest
Overnight low
22°
3rd coldest
Rainfall
23 mm
7.4 wet days
Daylight
12 hours
6:18 AM – 6:16 PM
Cloud cover
37%
1st clearest
Wind
14 km/h
6th windiest
Solar energy
6.09 kWh/m²
Travel score
7.1
out of 10

Dar es Salaam is largest city in Tanzania and capital of Dar es Salaam Region.

Density
3,865/km²
people per km²
Founded
1862

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 28°C through the month.

A typical September day in Dar es Salaam reaches about 28°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202823
212823
222823
232823
242823
252823
262823
272823
282823
292823
302823

How September really feels in Dar es Salaam

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.

Dar es Salaam weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 26°531012.45.0
Feb30° / 26°528.412.24.8
Mar30° / 25°15621.7123.8
Apr29° / 25°22926.311.93.5
May28° / 24°15220.411.75.0
Jun27° / 23°3911.411.66.4
Jul27° / 22°258.211.66.9
Aug27° / 22°258.611.87.0
Sep28° / 22°237.4127.1
Oct28° / 23°571112.25.9
Nov29° / 24°9217.512.34.7
Dec30° / 25°941812.44.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28713
38812
48812
58812
68911
78911
88911
98911
108911
119010
129010
139010
149010
159010
169010
178911
188911
198911
208911
218911
228911
238911
248911
258911
268812
278812
288812
298812
308812

Chance of precipitation in September

Any precipitation

Dar es Salaam gets around 23 mm of rain over 7.4 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
127
226
326
426
525
625
725
825
924
1024
1124
1224
1324
1423
1523
1623
1723
1823
1923
2023
2124
2224
2325
2425
2526
2626
2727
2828
2928
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
18812
28812
38713
48713
58614
68614
78515
88515
98515
108515
118515
128416
138416
148317
158218
168218
178119
188020
197921
207822
217624
227525
237327
247129
256931
266733
276535
286337
296040
305842

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over September. Sunrise moves from 6:27 AM to 6:11 AM, and sunset from 6:19 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:276:19
211.96:266:19
311.96:266:18
411.96:256:18
511.96:246:18
611.96:246:18
711.96:236:18
811.96:236:18
911.96:226:17
1011.96:226:17
1111.96:216:17
1211.96:216:17
1311.96:206:17
1412.06:196:16
1512.06:196:16
1612.06:186:16
1712.06:186:16
1812.06:176:16
1912.06:176:16
2012.06:166:15
2112.06:166:15
2212.06:156:15
2312.06:146:15
2412.06:146:15
2512.06:136:15
2612.06:136:14
2712.06:126:14
2812.06:126:14
2912.06:116:14
3012.16:116:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.09 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.41 kWh/m² in October across the year — September's 6.09 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Intense
136.0Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Dar es Salaam

In seasonPeak

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

Dar es Salaam sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Dar es Salaam's rainy season runs March–May, when most of the year's rain falls.

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

Is September a good time to visit Dar es Salaam?

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

7.1
Sightseeing
1st-best month of the year
7.5
Beach & pool
1st-best month of the year

September is one of the better times to visit Dar es Salaam for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Dar es Salaam in September

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

In September, Dar es Salaam sees daytime highs around 28°C and nights near 22°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Dar es Salaam in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in March at about 29°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Dar es Salaam 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 Dar es Salaam peaks around March 15 at about 14 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 15UV 14Jun 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Dar es Salaam 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 Dar es Salaam is worst in July — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1522 µg/m³Nov 1515 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar18Moderate
Apr16Moderate
May18Moderate
Jun21Moderate
Jul22Moderate
Aug20Moderate
Sep19Moderate
Oct17Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Dar es Salaam?

Dar es Salaam sits at 6.8°S, 39.3°E, 24 m above sea level, in Tanzania. The nearest listed city is Magomeni, 3.0 km away.

Topography around Dar es Salaam

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

Within 3 km, the terrain around Dar es Salaam has only modest variations in elevation — a maximum elevation change of 43 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 162 m; within 80 km, significant variations in elevation — a maximum elevation change of 449 m.

The land around Dar es Salaam is covered by artificial surfaces (77%) within 3 km, artificial surfaces (37%) and water (30%) within 16 km, and water (47%), grassland (26%) and trees (20%) within 80 km.

3 km
43 m
16 km
162 m
80 km
449 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Magomeni 3.0 km · Mwandege 17 km · Vikindu 21 km · Mkuranga 33 km · Mapinga 33 km · Kibaha 39 km · Sokoni 53 km · Bagamoyo 59 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 Dar es Salaam (-6.8235°, 39.2695°, elevation 24 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).