Usangi weather in September

In September, Usangi sees average daytime highs of 28°C and overnight lows near 17°C, with 9 mm of rain across 2.4 wet days and about 12 hours of daylight. It is the 8th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels comfortable.

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 Usangi's 7th-clearest and 8th-windiest month. For the whole year in context, see Usangi's year-round climate.

Daytime high
28°
8th warmest
Overnight low
17°
4th coldest
Rainfall
9 mm
2.4 wet days
Daylight
12 hours
6:24 AM – 6:23 PM
Cloud cover
62%
7th clearest
Wind
8 km/h
8th windiest
Solar energy
5.58 kWh/m²
Travel score
6.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical September day in Usangi reaches about 28°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 26°C and 31°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)
12717
22717
32717
42817
52817
62817
72817
82817
92817
102817
112817
122817
132817
142817
152817
162817
172917
182917
192917
202917
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918

How September really feels in Usangi

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.

Usangi weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°458.112.25.0
Feb31° / 20°416.512.14.6
Mar31° / 21°9313.8124.1
Apr29° / 20°12820.711.94.1
May27° / 19°8714.311.85.7
Jun26° / 17°133.911.87.1
Jul26° / 16°92.811.87.4
Aug27° / 16°11311.97.2
Sep28° / 17°92.4126.7
Oct30° / 19°326.312.15.6
Nov30° / 20°6914.112.24.6
Dec30° / 20°7414.612.24.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22575
32674
42674
52773
62872
72971
83169
93169
103367
113565
123664
133763
143862
154060
164060
174258
184357
194555
204555
214654
224654
234753
244753
254654
264753
274753
284753
294654
304753

Chance of precipitation in September

Any precipitation

Usangi gets around 9 mm of rain over 2.4 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 9% and peaks near 11% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
17
27
37
47
57
67
77
87
97
107
118
128
138
149
159
169
179
189
199
209
219
229
2310
2410
2510
2610
2710
2811
2911
3011

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1118180
2118180
3108190
498290
5981100
6980110
7880120
8880120
9879130
10879130
11779140
12778150
13778150
14777160
15777160
16777160
17776170
18776170
19775180
20774190
21773200
22772210
23771220
24769231
25767251
26765271
27764281
28663301
29661321
30658342

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:31 AM to 6:18 AM, and sunset from 6:27 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:316:27
211.96:316:27
311.96:306:26
411.96:306:26
511.96:296:26
611.96:296:26
711.96:286:25
812.06:286:25
912.06:286:25
1012.06:276:25
1112.06:276:24
1212.06:266:24
1312.06:266:24
1412.06:256:24
1512.06:256:23
1612.06:246:23
1712.06:246:23
1812.06:236:23
1912.06:236:22
2012.06:226:22
2112.06:226:22
2212.06:216:21
2312.06:216:21
2412.06:206:21
2512.06:206:21
2612.06:206:20
2712.06:196:20
2812.06:196:20
2912.06:186:20
3012.06:186:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.58 kWh/m².

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 6.68 kWh/m² in February across the year — September's 5.58 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Usangi

In seasonPeak

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

Usangi's rainy season runs March–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 Usangi?

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

6.7
Sightseeing
4th-best month of the year
7.9
Beach & pool
1st-best month of the year

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

What to pack for Usangi in September

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

In September, Usangi sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Usangi 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 Usangi peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 19UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Usangi?

Usangi sits at 3.7°S, 37.7°E, 1,337 m above sea level, in Tanzania. The nearest listed city is Lembeni, 11 km away.

Boma la NgombeMerelaniTarakeaMbuguni

Topography around Usangi

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

Within 3 km, the terrain around Usangi has large variations in elevation — a maximum elevation change of 1,099 m around an average of 1,376 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,400 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,350 m.

The land around Usangi is covered by trees (79%) within 3 km, shrubs (38%) and trees (33%) within 16 km, and shrubs (48%) and grassland (27%) within 80 km.

3 km
1,099 m
16 km
1,400 m
80 km
5,350 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Lembeni 11 km · Taveta 34 km · Same 41 km · Moshi 54 km · Boma la Ngombe 70 km · Merelani 78 km · Tarakea 79 km · Mbuguni 81 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 Usangi (-3.7°, 37.6667°, elevation 1,337 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).