Nyangao weather in September

In September, Nyangao sees average daytime highs of 30°C and overnight lows near 18°C, with 6 mm of rain across 2.1 wet days and about 11.9 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 50% 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 Nyangao's 1st-clearest and 2nd-windiest month. For the whole year in context, see Nyangao's year-round climate.

Daytime high
30°
6th warmest
Overnight low
18°
4th coldest
Rainfall
6 mm
2.1 wet days
Daylight
11 h 54 min
6:19 AM – 6:15 PM
Cloud cover
41%
1st clearest
Wind
10 km/h
2nd windiest
Solar energy
5.89 kWh/m²
Travel score
6.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Nyangao reaches about 30°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 28°C and 31°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)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102918
112918
122918
133018
143018
153018
163018
173018
183018
193018
203018
213018
223018
233018
243019
253019
263019
273019
283019
293019
303019

How September really feels in Nyangao

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.

Nyangao weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°16120.512.53.7
Feb30° / 22°16619.212.33.7
Mar29° / 22°21325.512.13.4
Apr29° / 21°1051811.84.5
May29° / 19°23511.56.4
Jun28° / 17°4111.47.4
Jul28° / 17°30.511.57.8
Aug29° / 17°31.111.77.0
Sep30° / 18°62.111.96.4
Oct30° / 20°175.412.25.6
Nov31° / 21°4510.112.54.6
Dec31° / 22°12319.612.63.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 37% of September, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58614
68614
78614
88614
98614
108614
118614
128614
138614
148614
158614
168614
178812
188812
198812
208812
218911
228911
238812
248812
258812
268812
278713
288713
298713
308614

Chance of precipitation in September

Any precipitation

Nyangao gets around 6 mm of rain over 2.1 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 7% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
13
23
34
44
54
64
75
85
95
105
116
126
136
146
156
166
177
187
197
207
218
228
239
249
2510
2611
2711
2812
2912
3013

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1235594
2233614
3232624
4230635
5229645
6227656
7126676
8124696
9123697
10121717
11120727
12119728
13118738
14117739
15116749
161157410
171147510
181137511
190127612
200117613
210107614
220107515
23097417
24087418
25077320
26077221
27067123
28067024
29056926
30056728

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 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
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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
211.86:286:17
311.86:276:16
411.86:276:16
511.86:266:16
611.86:256:16
711.96:256:16
811.96:246:16
911.96:246:16
1011.96:236:16
1111.96:226:16
1211.96:226:16
1311.96:216:16
1411.96:206:16
1511.96:206:16
1611.96:196:15
1712.06:186:15
1812.06:186:15
1912.06:176:15
2012.06:166:15
2112.06:166:15
2212.06:156:15
2312.06:146:15
2412.06:146:15
2512.06:136:15
2612.06:126:15
2712.16:126:15
2812.16:116:15
2912.16:106:15
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 5.89 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.25 kWh/m² in October across the year — September's 5.89 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
196.0Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Nyangao

In seasonPeak

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

Nyangao'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 Nyangao?

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

6.4
Sightseeing
4th-best month of the year
8.5
Beach & pool
3rd-best month of the year

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

What to pack for Nyangao in September

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

In September, Nyangao sees daytime highs around 30°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Nyangao 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 Nyangao 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 Nyangao 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 Nyangao 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 Nyangao?

Nyangao sits at 10.3°S, 39.3°E, 182 m above sea level, in Tanzania. The nearest listed city is Nanganga, 16 km away.

Topography around Nyangao

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

Within 3 km, the terrain around Nyangao has only modest variations in elevation — a maximum elevation change of 108 m around an average of 181 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 635 m; within 80 km, large variations in elevation — a maximum elevation change of 936 m.

The land around Nyangao is covered by shrubs (36%) and trees (34%) within 3 km, trees (60%) within 16 km, and trees (50%) and grassland (21%) within 80 km.

3 km
108 m
16 km
635 m
80 km
936 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Nanganga 16 km · Ruangwa 48 km · Nachingwea 57 km · Lukuledi 59 km · Tandahimba 60 km · Lindi 60 km · Luchingu 63 km · Kitama 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 Nyangao (-10.3333°, 39.2833°, elevation 182 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).