Fort Portal weather in September

In September, Fort Portal sees average daytime highs of 26°C and overnight lows near 16°C, with 186 mm of rain across 25.8 wet days and about 12 hours of daylight. It is the 9th-warmest and 3rd-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 5% 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 Fort Portal's 8th-clearest and 7th-windiest month. For the whole year in context, see Fort Portal's year-round climate.

Daytime high
26°
9th warmest
Overnight low
16°
4th coldest
Rainfall
186 mm
25.8 wet days
Daylight
12 hours
6:53 AM – 6:53 PM
Cloud cover
75%
8th clearest
Wind
4 km/h
7th windiest
Solar energy
5.67 kWh/m²
Travel score
4.1
out of 10

Fort Portal is town in Western Uganda.

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 26°C through the month.

A typical September day in Fort Portal 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.

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
302616

Fort Portal weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 16°346.7126.5
Feb29° / 17°377125.6
Mar28° / 17°10817.2124.7
Apr27° / 17°16424.1124.1
May27° / 17°13421.6124.7
Jun27° / 16°10316.1125.4
Jul26° / 16°10416.9125.5
Aug26° / 16°16722.6124.7
Sep26° / 16°18625.8124.1
Oct26° / 16°23928.2123.8
Nov26° / 16°20425.7124.1
Dec26° / 16°8513.5125.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% 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 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12872
22872
32872
42872
52872
62773
72773
82773
92773
102773
112773
122773
132575
142575
152476
162476
172377
182377
192278
202179
212179
222080
231981
241981
251981
261882
271783
281684
291684
301684

Chance of precipitation in September

Any precipitation

Fort Portal gets around 186 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 85% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
180
281
382
482
583
683
784
884
984
1084
1184
1284
1384
1484
1585
1685
1785
1885
1985
2086
2186
2286
2387
2487
2588
2688
2788
2889
2989
3089

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
17921
26931
36931
46931
55941
65941
75941
85941
95941
105941
115941
125941
136931
146931
156922
166922
176922
186922
195932
205932
215923
225923
234933
244933
254933
263943
273943
283943
292953
302953

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 6:58 AM to 6:48 AM, and sunset from 6:59 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:586:59
212.06:586:59
312.06:586:58
412.06:576:58
512.06:576:58
612.06:576:57
712.06:566:57
812.06:566:56
912.06:566:56
1012.06:556:56
1112.06:556:55
1212.06:556:55
1312.06:546:55
1412.06:546:54
1512.06:536:54
1612.06:536:53
1712.06:536:53
1812.06:526:53
1912.06:526:52
2012.06:526:52
2112.06:516:51
2212.06:516:51
2312.06:516:51
2412.06:506:50
2512.06:506:50
2612.06:506:49
2712.06:496:49
2812.06:496:49
2912.06:496:48
3012.06:486:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.67 kWh/m².

For context, solar energy here swings from a low near 5.14 kWh/m² to a high of 6.02 kWh/m² in February across the year — September's 5.67 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Fort Portal

In seasonPeak

In September, Fort Portal sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Fort Portal's rainy season runs August–November, 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 Fort Portal?

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

4.1
Sightseeing
9th-best month of the year
4.0
Beach & pool
10th-best month of the year

September is a reasonable time to visit Fort Portal for sightseeing.

What to pack for Fort Portal in September

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

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

rain gearlight clothessun protection

UV index in Fort Portal 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 Fort Portal peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 22UV 10
UV index (midday)Level
Jan11Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov11Extreme
Dec10Extreme

Air quality in Fort Portal 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 Fort Portal is worst in February — around 66 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (April, 26 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorModeratePoorFeb 966 µg/m³Apr 2226 µg/m³
PM2.5 (µg/m³)Level
Jan64Unhealthy
Feb66Unhealthy
Mar39Poor
Apr26Moderate
May27Moderate
Jun35Poor
Jul42Poor
Aug33Moderate
Sep28Moderate
Oct26Moderate
Nov28Moderate
Dec44Poor
Location & terrain

Where is Fort Portal?

Fort Portal sits at 0.7°N, 30.3°E, 1,518 m above sea level, in Uganda. The nearest listed city is Buhesi, 12 km away.

KyenjojoKatokeRwamwanja Refugee Camp

Topography around Fort Portal

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

Within 3 km, the terrain around Fort Portal has only modest variations in elevation — a maximum elevation change of 114 m around an average of 1,527 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,902 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,373 m.

The land around Fort Portal is covered by trees (64%) within 3 km, trees (60%) within 16 km, and trees (62%) and grassland (21%) within 80 km.

3 km
114 m
16 km
1,902 m
80 km
4,373 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Buhesi 12 km · Bundibugyo 24 km · Nyahuka 31 km · Kyarusozi 32 km · Rwiimi 32 km · Kyenjojo 39 km · Katoke 47 km · Rwamwanja Refugee Camp 55 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 Fort Portal (0.6617°, 30.2748°, elevation 1,518 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).