Nanganga weather in September

In September, Nanganga sees average daytime highs of 29°C and overnight lows near 17°C, with 9 mm of rain across 3.2 wet days and about 11.9 hours of daylight. It is the 5th-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 40% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Nanganga's 1st-clearest and 3rd-windiest month. For the whole year in context, see Nanganga's year-round climate.

Daytime high
29°
5th warmest
Overnight low
17°
4th coldest
Rainfall
9 mm
3.2 wet days
Daylight
11 h 54 min
6:19 AM – 6:16 PM
Cloud cover
44%
1st clearest
Wind
11 km/h
3rd windiest
Solar energy
5.97 kWh/m²
Travel score
6.8
out of 10

Nanganga is settlement in Mtwara Region, Tanzania.

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 Nanganga reaches about 29°C in the afternoon and slips back to 17°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 1°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
92917
102917
112917
122917
132917
142917
152917
162917
172917
182918
192918
202918
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918

Nanganga weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°17421.212.54.0
Feb29° / 21°18619.412.34.0
Mar28° / 21°25126.212.13.6
Apr28° / 20°12619.211.84.9
May28° / 18°286.411.57.1
Jun27° / 17°61.811.47.9
Jul27° / 16°51.411.58.0
Aug28° / 16°61.911.77.7
Sep29° / 17°93.211.96.8
Oct29° / 19°246.812.25.9
Nov30° / 20°5611.512.55.0
Dec29° / 21°14019.812.64.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 42% of September, with mostly cloudy or overcast conditions the remaining 17%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38218
48218
58218
68218
78218
88119
98119
108119
118119
128218
138218
148317
158317
168317
178416
188416
198515
208515
218515
228515
238515
248416
258416
268416
278317
288317
298218
308218

Chance of precipitation in September

Any precipitation

Nanganga gets around 9 mm of rain over 3.2 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 10% and peaks near 16% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
27
37
47
58
68
78
89
99
109
119
1210
1310
1410
1510
1610
1710
1810
1911
2011
2111
2212
2312
2413
2513
2614
2714
2815
2915
3016

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1353422
2352432
3350453
4349463
5347473
6346493
7344503
8243523
9241543
10240553
11239563
12237583
13236593
14235603
15233623
16131653
17129664
18128674
19126685
20124705
21122716
22121717
23019738
24018739
250177310
260167212
270157213
280147214
290137215
300127216

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 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 18 minutes over September. Sunrise moves from 6:29 AM to 6:10 AM, and sunset from 6:17 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:296:17
211.86:296:17
311.86:286:17
411.86:276:17
511.86:276:17
611.86:266:17
711.96:256:17
811.96:256:17
911.96:246:17
1011.96:236:16
1111.96:236:16
1211.96:226:16
1311.96:216:16
1411.96:216:16
1511.96:206:16
1611.96:196:16
1712.06:196:16
1812.06:186:16
1912.06:176:16
2012.06:176:16
2112.06:166:16
2212.06:156:16
2312.06:156:16
2412.06:146:15
2512.06:136:15
2612.06:136:15
2712.16:126:15
2812.16:126:15
2912.16:116:15
3012.16:106:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.97 kWh/m².

For context, solar energy here swings from a low near 4.98 kWh/m² to a high of 6.32 kWh/m² in October across the year — September's 5.97 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Nanganga

In seasonPeak

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

Nanganga's monsoon runs December–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 Nanganga?

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

6.8
Sightseeing
5th-best month of the year
8.3
Beach & pool
1st-best month of the year

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

What to pack for Nanganga in September

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

In September, Nanganga sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

UV index in Nanganga 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 Nanganga peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 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 13UV 15Jul 10UV 9
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun10Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Nanganga 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 Nanganga is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 2418 µg/m³May 1510 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb12Moderate
Mar11Good
Apr11Good
May10Good
Jun12Good
Jul18Moderate
Aug18Moderate
Sep11Good
Oct10Good
Nov12Good
Dec10Good
Location & terrain

Where is Nanganga?

Nanganga sits at 10.4°S, 39.1°E, 214 m above sea level, in Tanzania. The nearest listed city is Nyangao, 16 km away.

Topography around Nanganga

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

Within 3 km, the terrain around Nanganga has only modest variations in elevation — a maximum elevation change of 90 m around an average of 221 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 687 m; within 80 km, large variations in elevation — a maximum elevation change of 936 m.

The land around Nanganga is covered by grassland (37%), shrubs (31%) and cropland (22%) within 3 km, trees (43%), shrubs (25%) and grassland (20%) within 16 km, and trees (47%), shrubs (22%) and grassland (22%) within 80 km.

3 km
90 m
16 km
687 m
80 km
936 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Nyangao 16 km · Nachingwea 42 km · Ruangwa 42 km · Lukuledi 43 km · Masasi 53 km · Luchingu 61 km · Newala 63 km · Newala Kisimani 65 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 Nanganga (-10.3833°, 39.15°, elevation 214 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).