Kamachumu weather in September

In September, Kamachumu sees average daytime highs of 26°C and overnight lows near 16°C, with 85 mm of rain across 16.7 wet days and about 12 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 22% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Kamachumu's 4th-clearest and 4th-windiest month. For the whole year in context, see Kamachumu's year-round climate.

Daytime high
26°
7th warmest
Overnight low
16°
3rd coldest
Rainfall
85 mm
16.7 wet days
Daylight
12 hours
6:48 AM – 6:48 PM
Cloud cover
66%
4th clearest
Wind
7 km/h
4th windiest
Solar energy
5.62 kWh/m²
Travel score
5.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Kamachumu reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82616
92616
102616
112616
122616
132616
142616
152616
162616
172616
182616
192616
202616
212616
222616
232616
242616
252616
262616
272616
282616
292616
302617

Kamachumu weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 17°8416.212.15.5
Feb27° / 17°6813.612.15.6
Mar27° / 17°11218.2125.1
Apr26° / 18°13219.9124.8
May26° / 17°8114.211.96.0
Jun27° / 16°34611.97.1
Jul27° / 16°183.211.97.6
Aug27° / 16°5910.811.96.4
Sep26° / 16°8516.7125.5
Oct26° / 17°12922124.7
Nov25° / 17°14623.612.14.4
Dec26° / 17°11620.812.14.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24654
34654
44654
54654
64654
74654
84654
94654
104654
114555
124555
134555
144456
154456
164357
174159
184159
194159
203961
213961
223763
233763
243664
253565
263367
273367
283268
293268
303169

Chance of precipitation in September

Any precipitation

Kamachumu gets around 85 mm of rain over 16.7 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 55% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
250
351
451
552
652
753
853
954
1054
1154
1254
1354
1454
1555
1655
1755
1855
1956
2056
2157
2257
2358
2458
2559
2660
2760
2861
2961
3062

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 78% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1222706
2221716
3220726
4118756
5117766
6116776
7115777
8115777
9114787
10114787
11114787
12113788
13113788
14113788
15013798
16013798
17013798
18013798
19012808
20012808
21011818
22011809
23010819
2409829
2508839
26088210
27078211
28068311
29058312
30058213

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:54 AM to 6:42 AM, and sunset from 6:52 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:546:52
212.06:546:52
312.06:536:52
412.06:536:51
512.06:536:51
612.06:526:51
712.06:526:50
812.06:516:50
912.06:516:50
1012.06:516:50
1112.06:506:49
1212.06:506:49
1312.06:496:49
1412.06:496:48
1512.06:496:48
1612.06:486:48
1712.06:486:47
1812.06:476:47
1912.06:476:47
2012.06:466:46
2112.06:466:46
2212.06:466:46
2312.06:456:45
2412.06:456:45
2512.06:446:45
2612.06:446:44
2712.06:446:44
2812.06:436:44
2912.06:436:43
3012.06:426:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.62 kWh/m².

For context, solar energy here swings from a low near 5.03 kWh/m² to a high of 5.89 kWh/m² in February across the year — September's 5.62 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Is September a good time to visit Kamachumu?

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

5.5
Sightseeing
6th-best month of the year
5.4
Beach & pool
7th-best month of the year

September is a reasonable time to visit Kamachumu for sightseeing.

What to pack for Kamachumu in September

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

In September, Kamachumu sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Kamachumu 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 Kamachumu peaks around March 16 at about 16 (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 16Jun 19UV 10
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Kamachumu 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 Kamachumu is worst in January — around 28 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (April, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1927 µg/m³Apr 2113 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar18Moderate
Apr13Moderate
May14Moderate
Jun20Moderate
Jul24Moderate
Aug26Moderate
Sep21Moderate
Oct16Moderate
Nov16Moderate
Dec20Moderate
Location & terrain

Where is Kamachumu?

Kamachumu sits at 1.6°S, 31.6°E, 1,496 m above sea level, in Tanzania. The nearest listed city is Nshamba, 21 km away.

KasaaliChatoMhalambaBiharamulo

Topography around Kamachumu

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

Within 3 km, the terrain around Kamachumu has significant variations in elevation — a maximum elevation change of 272 m around an average of 1,494 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 461 m; within 80 km, large variations in elevation — a maximum elevation change of 662 m.

The land around Kamachumu is covered by trees (40%) and grassland (36%) within 3 km, grassland (43%) and trees (27%) within 16 km, and water (39%) and grassland (28%) within 80 km.

3 km
272 m
16 km
461 m
80 km
662 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Nshamba 21 km · Katerero 27 km · Bukoba 38 km · Nsunga 58 km · Kasaali 112 km · Chato 114 km · Mhalamba 115 km · Biharamulo 118 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 Kamachumu (-1.6186°, 31.62°, elevation 1,496 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).