Opit weather in September

In September, Opit sees average daytime highs of 28°C and overnight lows near 19°C, with 137 mm of rain across 19 wet days and about 12 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Opit's 3rd-clearest and 9th-windiest month. For the whole year in context, see Opit's year-round climate.

Daytime high
28°
8th warmest
Overnight low
19°
3rd coldest
Rainfall
137 mm
19 wet days
Daylight
12 hours
6:44 AM – 6:45 PM
Cloud cover
59%
3rd clearest
Wind
5 km/h
9th windiest
Solar energy
6.11 kWh/m²
Travel score
4.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Opit reaches about 28°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)
12818
22818
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142819
152819
162919
172919
182919
192919
202919
212919
222919
232919
242919
252919
262919
272919
282919
292919
302919

How September really feels in Opit

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.

Opit weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 20°203.511.94.6
Feb33° / 21°214.411.93.9
Mar32° / 21°9712.6123.7
Apr29° / 20°19321.712.13.7
May28° / 20°17323.812.14.0
Jun28° / 19°1161912.14.9
Jul27° / 18°1272112.14.9
Aug28° / 18°16122.612.14.6
Sep28° / 19°13719124.6
Oct29° / 19°16819.711.94.4
Nov29° / 19°10813.811.94.8
Dec30° / 19°345.711.95.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 29% of September, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25347
35446
45545
55545
65644
75644
85644
95842
105842
115842
125941
136040
145941
155941
165941
175842
185842
195743
205644
215545
225347
235248
245149
254951
264852
274753
284654
294654
304555

Chance of precipitation in September

Any precipitation

Opit gets around 137 mm of rain over 19 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 63% and peaks near 72% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
172
271
371
470
570
669
768
867
966
1065
1164
1263
1362
1461
1560
1659
1759
1858
1958
2058
2159
2259
2359
2460
2561
2661
2762
2862
2963
3063

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
113267
213267
313267
413366
513267
613267
713267
813267
913267
1013168
1113168
1213168
1323167
1423167
1523068
1623068
1723068
1832968
1932968
2032968
2132869
2232869
2332869
2432869
2532869
2632869
2732968
2832968
2932968
3032968

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 6:48 AM to 6:40 AM, and sunset from 6:51 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:486:51
212.06:486:51
312.06:486:50
412.06:476:50
512.06:476:50
612.06:476:49
712.06:476:49
812.06:466:48
912.06:466:48
1012.06:466:48
1112.06:456:47
1212.06:456:47
1312.06:456:46
1412.06:456:46
1512.06:446:45
1612.06:446:45
1712.06:446:44
1812.06:436:44
1912.06:436:44
2012.06:436:43
2112.06:436:43
2212.06:426:42
2312.06:426:42
2412.06:426:41
2512.06:416:41
2612.06:416:40
2712.06:416:40
2812.06:416:40
2912.06:406:39
3012.06:406:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.11 kWh/m².

For context, solar energy here swings from a low near 5.22 kWh/m² to a high of 6.23 kWh/m² in February across the year — September's 6.11 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.0Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Is September a good time to visit Opit?

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

4.6
Sightseeing
5th-best month of the year
5.5
Beach & pool
6th-best month of the year

September is a reasonable time to visit Opit for sightseeing.

What to pack for Opit in September

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

In September, Opit sees daytime highs around 28°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Opit 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 Opit peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 21UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov11Extreme
Dec11Extreme

Air quality in Opit 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 Opit is worst in January — around 55 µg/m³ PM2.5 (poor), about 3.4× the cleanest month (April, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateJan 1852 µg/m³Apr 2016 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb39Poor
Mar21Moderate
Apr16Moderate
May17Moderate
Jun26Moderate
Jul28Moderate
Aug22Moderate
Sep19Moderate
Oct19Moderate
Nov23Moderate
Dec33Moderate
Location & terrain

Where is Opit?

Opit sits at 2.6°N, 32.5°E, 1,132 m above sea level, in Uganda. The nearest listed city is Gulu, 27 km away.

AnakaLiraApacKiryandongo Refugee CampBuyaleKitgumKigumba

Topography around Opit

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

Within 3 km, the terrain around Opit has only modest variations in elevation — a maximum elevation change of 97 m around an average of 1,105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 208 m; within 80 km, large variations in elevation — a maximum elevation change of 707 m.

The land around Opit is covered by cropland (45%) and shrubs (26%) within 3 km, cropland (45%) and shrubs (27%) within 16 km, and cropland (39%) and grassland (27%) within 80 km.

3 km
97 m
16 km
208 m
80 km
707 m
treesshrubsgrasslandcroplandartificial surfaceswetland
September weather nearby: Gulu 27 km · Anaka 59 km · Lira 62 km · Apac 71 km · Kiryandongo Refugee Camp 82 km · Buyale 85 km · Kitgum 87 km · Kigumba 103 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 Opit (2.6111°, 32.4756°, elevation 1,132 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).