Kumi weather in September

In September, Kumi sees average daytime highs of 30°C and overnight lows near 20°C, with 104 mm of rain across 16.3 wet days and about 12 hours of daylight. It is the 8th-warmest and 7th-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 28% 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 Kumi's 3rd-clearest and 8th-windiest month. For the whole year in context, see Kumi's year-round climate.

Daytime high
30°
8th warmest
Overnight low
20°
4th coldest
Rainfall
104 mm
16.3 wet days
Daylight
12 hours
6:38 AM – 6:39 PM
Cloud cover
56%
3rd clearest
Wind
6 km/h
8th windiest
Solar energy
5.94 kWh/m²
Travel score
4.2
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 Kumi reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153020
163020
173020
183020
193120
203120
213120
223120
233120
243120
253120
263120
273120
283120
293120
303120

How September really feels in Kumi

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.

Kumi weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°224.611.93.8
Feb34° / 21°234.5123.2
Mar33° / 21°6710.4123.3
Apr31° / 21°13118.9123.5
May29° / 20°15421.912.13.9
Jun29° / 20°12219.412.14.2
Jul29° / 19°11619.712.14.4
Aug29° / 20°13521124.1
Sep30° / 20°10416.3124.2
Oct31° / 20°11518.4123.7
Nov31° / 20°8313.711.94.0
Dec32° / 20°316.611.94.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25941
36040
46040
56139
66139
76238
86238
96238
106238
116337
126337
136238
146238
156238
166139
176040
186040
195941
205941
215743
225743
235545
245545
255347
265347
275149
285149
295050
304951

Chance of precipitation in September

Any precipitation

Kumi gets around 104 mm of rain over 16.3 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 63% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
163
262
361
460
559
658
757
856
955
1055
1154
1253
1352
1452
1552
1651
1751
1851
1951
2052
2152
2252
2353
2453
2554
2654
2755
2856
2956
3057

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11105138
21115038
31115038
41115038
51114939
61114939
71114939
81114939
91105039
101105138
111105138
122105137
13295336
14295336
15295435
16295435
17285535
18285634
19285634
20185734
21185833
22185833
23185833
24185833
25185833
26185734
27185734
28185734
29185635
30185635

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:43 AM to 6:34 AM, and sunset from 6:45 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:436:45
212.06:436:44
312.06:436:44
412.06:426:44
512.06:426:43
612.06:426:43
712.06:416:42
812.06:416:42
912.06:416:42
1012.06:406:41
1112.06:406:41
1212.06:406:40
1312.06:396:40
1412.06:396:40
1512.06:396:39
1612.06:386:39
1712.06:386:38
1812.06:386:38
1912.06:376:38
2012.06:376:37
2112.06:376:37
2212.06:366:36
2312.06:366:36
2412.06:366:36
2512.06:356:35
2612.06:356:35
2712.06:356:34
2812.06:346:34
2912.06:346:34
3012.06:346:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.94 kWh/m².

For context, solar energy here swings from a low near 4.99 kWh/m² to a high of 6.34 kWh/m² in February across the year — September's 5.94 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
146.0Bright
156.0Bright
166.0Bright
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Bright
296.0Bright
306.0Bright
Planning a trip in September

Is September a good time to visit Kumi?

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

4.2
Sightseeing
2nd-best month of the year
5.8
Beach & pool
6th-best month of the year

September is a reasonable time to visit Kumi for sightseeing.

What to pack for Kumi in September

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

In September, Kumi sees daytime highs around 30°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Kumi 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 Kumi peaks around March 15 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 15UV 15Jun 19UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Kumi 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 Kumi is worst in January — around 44 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorModeratePoorJan 1743 µg/m³Apr 1830 µg/m³
PM2.5 (µg/m³)Level
Jan44Poor
Feb40Poor
Mar34Moderate
Apr30Moderate
May32Moderate
Jun38Poor
Jul39Poor
Aug33Moderate
Sep31Moderate
Oct32Moderate
Nov36Poor
Dec39Poor
Location & terrain

Where is Kumi?

Kumi sits at 1.5°N, 33.9°E, 1,142 m above sea level, in Uganda. The nearest listed city is Ngora, 18 km away.

NakalokeSironkoPallisaSorotiMbaleBudakaBudadiri

Topography around Kumi

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

Within 3 km, the terrain around Kumi has only modest variations in elevation — a maximum elevation change of 60 m around an average of 1,128 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 143 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,263 m.

The land around Kumi is covered by cropland (43%), grassland (25%) and shrubs (24%) within 3 km, cropland (41%), shrubs (29%) and grassland (24%) within 16 km, and grassland (27%), cropland (26%) and shrubs (24%) within 80 km.

3 km
60 m
16 km
143 m
80 km
3,263 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Ngora 18 km · Nakaloke 42 km · Sironko 43 km · Pallisa 43 km · Soroti 46 km · Mbale 50 km · Budaka 51 km · Budadiri 56 km

Uganda travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$1,206
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
9
per 100k, 2023
Road deaths
29.4
per 100k/yr, 2019
Income group
Low
World Bank
English
Moderate
EF EPI 518
Religion
Protestant 45%Roman Catholic 39%Muslim 14%other 2%

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 Kumi (1.4608°, 33.9361°, elevation 1,142 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).