Nangwa weather in September

In September, Nangwa sees average daytime highs of 25°C and overnight lows near 13°C, with 1 mm of rain across 0.4 wet days and about 12 hours of daylight. It is the 7th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels dry.

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 Nangwa's 1st-clearest and 2nd-windiest month. For the whole year in context, see Nangwa's year-round climate.

Daytime high
25°
7th warmest
Overnight low
13°
4th coldest
Rainfall
1 mm
0.4 wet days
Daylight
12 hours
6:33 AM – 6:32 PM
Cloud cover
46%
1st clearest
Wind
13 km/h
2nd windiest
Solar energy
6.67 kWh/m²
Travel score
8.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical September day in Nangwa reaches about 25°C in the afternoon and slips back to 13°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12412
22412
32412
42412
52412
62412
72412
82513
92513
102513
112513
122513
132513
142513
152513
162513
172513
182513
192513
202513
212513
222513
232613
242613
252613
262613
272613
282613
292613
302613

Nangwa weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°20414.712.26.0
Feb26° / 16°15411.912.16.1
Mar25° / 16°16214.5126.1
Apr24° / 16°10115.811.95.9
May23° / 14°39811.87.0
Jun22° / 12°3111.77.9
Jul22° / 11°20.611.88.1
Aug23° / 12°20.511.98.3
Sep25° / 13°10.4128.6
Oct26° / 14°102.312.17.9
Nov26° / 15°606.812.27.1
Dec26° / 16°16012.912.36.2

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 25% of September, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45941
55941
65941
76040
86139
96139
106238
116337
126436
136436
146436
156535
166634
176832
186931
197030
207030
217129
227129
237228
247327
257327
267327
277228
287129
297129
307030

Chance of precipitation in September

Any precipitation

Nangwa gets around 1 mm of rain over 0.4 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
192
202
212
222
232
242
252
262
272
283
293
303

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
11991
12991
13991
14991
15991
16991
17991
18991
19982
20982
21982
22973
23973
24964
25964
26955
27955
28946
29946
30937

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:40 AM to 6:26 AM, and sunset from 6:35 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:406:35
211.96:406:35
311.96:406:35
411.96:396:35
511.96:396:34
611.96:386:34
711.96:386:34
811.96:376:34
911.96:376:34
1012.06:366:33
1112.06:366:33
1212.06:356:33
1312.06:356:33
1412.06:346:32
1512.06:346:32
1612.06:336:32
1712.06:336:32
1812.06:326:31
1912.06:326:31
2012.06:316:31
2112.06:316:31
2212.06:306:30
2312.06:306:30
2412.06:296:30
2512.06:296:30
2612.06:286:29
2712.06:286:29
2812.06:276:29
2912.06:276:29
3012.06:266:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.67 kWh/m².

For context, solar energy here swings from a low near 5 kWh/m² to a high of 6.86 kWh/m² in October across the year — September's 6.67 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.4Intense
86.4Intense
96.4Intense
106.5Intense
116.5Intense
126.5Intense
136.6Intense
146.6Intense
156.7Intense
166.7Intense
176.7Intense
186.8Intense
196.8Intense
206.8Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
277.0Intense
287.0Intense
297.0Intense
306.9Intense
Planning a trip in September

Hazard calendar for Nangwa

In seasonPeak

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

Nangwa'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 Nangwa?

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

8.6
Sightseeing
1st-best month of the year
7.7
Beach & pool
1st-best month of the year

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

What to pack for Nangwa in September

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

In September, Nangwa sees daytime highs around 25°C and nights near 13°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Nangwa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nangwa peaks around March 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 13UV 16Jun 17UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct15Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Nangwa?

Nangwa sits at 4.5°S, 35.5°E, 1,837 m above sea level, in Tanzania. The nearest listed city is Katesh, 10 km away.

Topography around Nangwa

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

Within 3 km, the terrain around Nangwa has large variations in elevation — a maximum elevation change of 857 m around an average of 1,871 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,906 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,402 m.

The land around Nangwa is covered by cropland (50%) and trees (34%) within 3 km, cropland (59%) and shrubs (23%) within 16 km, and cropland (39%) and shrubs (31%) within 80 km.

3 km
857 m
16 km
1,906 m
80 km
2,402 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Katesh 10 km · Bashanet 26 km · Dareda 30 km · Basotu 42 km · Babati 43 km · Dongobesh 45 km · Galappo 50 km · Kondoa 61 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 Nangwa (-4.4667°, 35.45°, elevation 1,837 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).