Mukono weather in September

In September, Mukono sees average daytime highs of 25°C and overnight lows near 20°C, with 140 mm of rain across 25.8 wet days and about 12 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 13% of the time in September, and the air most often feels muggy.

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

Daytime high
25°
5th warmest
Overnight low
20°
3rd coldest
Rainfall
140 mm
25.8 wet days
Daylight
12 hours
6:43 AM – 6:43 PM
Cloud cover
71%
7th clearest
Wind
8 km/h
8th windiest
Solar energy
5.44 kWh/m²
Travel score
4.3
out of 10

Mukono is town in Uganda.

Density
6,092/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical September day in Mukono reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12520
22520
32520
42520
52520
62520
72520
82520
92520
102520
112520
122520
132520
142520
152520
162520
172520
182520
192520
202520
212520
222520
232520
242520
252520
262520
272520
282520
292520
302520

Mukono weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 21°12521.1125.0
Feb26° / 21°11619.2125.0
Mar25° / 21°18626124.3
Apr25° / 21°24428.3123.7
May24° / 20°21228.5124.0
Jun24° / 20°14524.8124.5
Jul24° / 19°11821.7125.0
Aug24° / 19°13625124.6
Sep25° / 20°14025.8124.3
Oct25° / 20°17027.9124.0
Nov24° / 20°20027.9123.9
Dec25° / 20°15424.8124.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% 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 69%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53763
63763
73763
83763
93763
103763
113664
123664
133565
143565
153466
163466
173268
183268
193169
203070
212872
222773
232575
242575
252476
262377
272278
282377
292179
302179

Chance of precipitation in September

Any precipitation

Mukono gets around 140 mm of rain over 25.8 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 86% and peaks near 87% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
186
286
386
487
587
687
787
887
987
1086
1186
1286
1386
1486
1586
1686
1786
1885
1985
2085
2185
2285
2385
2485
2586
2686
2786
2886
2986
3087

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)
13070
22971
32872
42773
52674
62575
72476
82377
92278
102179
112080
122080
131981
141882
151783
161783
171684
181585
191486
201486
211387
221288
231189
241189
251090
26991
27991
28892
29892
30793

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 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
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 6:48 AM to 6:38 AM, and sunset from 6:49 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:486:49
212.06:486:49
312.06:486:48
412.06:476:48
512.06:476:47
612.06:476:47
712.06:466:47
812.06:466:46
912.06:466:46
1012.06:456:46
1112.06:456:45
1212.06:456:45
1312.06:446:45
1412.06:446:44
1512.06:446:44
1612.06:436:43
1712.06:436:43
1812.06:436:43
1912.06:426:42
2012.06:426:42
2112.06:416:41
2212.06:416:41
2312.06:416:41
2412.06:406:40
2512.06:406:40
2612.06:406:40
2712.06:396:39
2812.06:396:39
2912.06:396:39
3012.06:386:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.44 kWh/m².

For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 5.92 kWh/m² in February across the year — September's 5.44 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Mukono?

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

4.3
Sightseeing
7th-best month of the year
3.8
Beach & pool
8th-best month of the year

September is a reasonable time to visit Mukono for sightseeing.

What to pack for Mukono in September

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

In September, Mukono sees daytime highs around 25°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 26 days see rain.

rain gearlight clothessun protection

UV index in Mukono 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 Mukono peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 17UV 15Jun 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Mukono 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 Mukono is worst in January — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (April, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1737 µg/m³Apr 1920 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb31Moderate
Mar22Moderate
Apr19Moderate
May21Moderate
Jun29Moderate
Jul33Moderate
Aug32Moderate
Sep29Moderate
Oct27Moderate
Nov26Moderate
Dec29Moderate
Location & terrain

Where is Mukono?

Mukono sits at 0.4°N, 32.8°E, 1,188 m above sea level, in Uganda. The nearest listed city is Kireka, 12 km away.

Topography around Mukono

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

Within 3 km, the terrain around Mukono has only modest variations in elevation — a maximum elevation change of 216 m around an average of 1,183 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 260 m; within 80 km, significant variations in elevation — a maximum elevation change of 381 m.

The land around Mukono is covered by trees (38%) and artificial surfaces (34%) within 3 km, trees (42%) and shrubs (27%) within 16 km, and trees (36%) and water (31%) within 80 km.

3 km
216 m
16 km
260 m
80 km
381 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Kireka 12 km · Kira 15 km · Kasangati 19 km · Kampala 20 km · Lugazi 20 km · Bunamwaya 25 km · Nansana 25 km · Buikwe 28 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 Mukono (0.3533°, 32.7553°, elevation 1,188 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).