Arua weather in September

In September, Arua sees average daytime highs of 28°C and overnight lows near 19°C, with 105 mm of rain across 17.1 wet days and about 12 hours of daylight. It is the 9th-warmest and 4th-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 19% of the time in September, and the air most often feels humid.

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 Arua's 6th-clearest and 9th-windiest month. For the whole year in context, see Arua's year-round climate.

Daytime high: 28°; 9th warmest
Overnight low: 19°; 3rd coldest
Rainfall: 105 mm; 17.1 wet days
Daylight: 12 hours; 6:50 AM – 6:51 PM
Cloud cover: 64%; 6th clearest
Wind: 6 km/h; 9th windiest
Solar energy: 5.73 kWh/m²
Travel score: 4.9; out of 10

Arua is City in North Western Uganda.

Founded: 1914

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

← August Arua year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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 Arua 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 26°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	18	18	18	18	18	18	18	18	18	18	18	18	18	18	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19

	Avg high (°C)	Avg low (°C)
1	28	18
2	28	18
3	28	18
4	28	18
5	28	18
6	28	18
7	28	18
8	28	18
9	28	18
10	28	18
11	28	18
12	28	18
13	28	18
14	28	18
15	28	19
16	28	19
17	28	19
18	28	19
19	28	19
20	28	19
21	28	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19

How September really feels in Arua

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Arua weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 20°	10	2.2	11.8	5.0
Feb	33° / 21°	17	3.5	11.9	4.2
Mar	32° / 21°	50	9.9	12	4.1
Apr	30° / 20°	80	14.7	12.1	4.4
May	29° / 20°	70	12.3	12.1	5.1
Jun	29° / 19°	85	13.5	12.2	5.2
Jul	28° / 19°	113	16.1	12.2	5.4
Aug	28° / 18°	137	19.1	12.1	5.0
Sep	28° / 19°	105	17.1	12	4.9
Oct	28° / 19°	118	20.3	11.9	4.4
Nov	29° / 19°	72	13.8	11.9	5.1
Dec	30° / 20°	16	3.6	11.8	5.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 55%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	41	41	42	43	44	45	46	47	48	49	49	51	50	51	50	50	50	49	48	47	46	45	42	41	39	39	37	35	35	33
Cloudier (%)	59	59	58	57	56	55	54	53	52	51	51	49	50	49	50	50	50	51	52	53	54	55	58	59	61	61	63	65	65	67

	Clearer (%)	Cloudier (%)
1	41	59
2	41	59
3	42	58
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	48	52
10	49	51
11	49	51
12	51	49
13	50	50
14	51	49
15	50	50
16	50	50
17	50	50
18	49	51
19	48	52
20	47	53
21	46	54
22	45	55
23	42	58
24	41	59
25	39	61
26	39	61
27	37	63
28	35	65
29	35	65
30	33	67

Chance of precipitation in September

Any precipitation

Arua gets around 105 mm of rain over 17.1 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 57% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	65	65	64	64	63	63	62	62	61	60	59	58	57	55	55	54	53	53	52	52	52	52	53	53	54	54	55	56	57	58

	Rain chance (%)
1	65
2	65
3	64
4	64
5	63
6	63
7	62
8	62
9	61
10	60
11	59
12	58
13	57
14	55
15	55
16	54
17	53
18	53
19	52
20	52
21	52
22	52
23	53
24	53
25	54
26	54
27	55
28	56
29	57
30	58

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Comfortable (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Humid (%)	76	75	75	75	75	75	74	74	73	73	72	71	71	70	69	68	67	66	66	65	65	65	65	65	66	66	67	67	67	67
Muggy (%)	23	24	24	24	24	24	25	25	26	26	27	28	28	29	30	31	32	33	33	34	34	34	34	34	33	33	32	32	32	32

	Comfortable (%)	Humid (%)	Muggy (%)
1	1	76	23
2	1	75	24
3	1	75	24
4	1	75	24
5	1	75	24
6	1	75	24
7	1	74	25
8	1	74	25
9	1	73	26
10	1	73	26
11	1	72	27
12	1	71	28
13	1	71	28
14	1	70	29
15	1	69	30
16	1	68	31
17	1	67	32
18	1	66	33
19	1	66	33
20	1	65	34
21	1	65	34
22	1	65	34
23	1	65	34
24	1	65	34
25	1	66	33
26	1	66	33
27	1	67	32
28	1	67	32
29	1	67	32
30	1	67	32

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm

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 6:54 AM to 6:46 AM, and sunset from 6:58 PM to 6:45 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:54	6:54	6:54	6:54	6:53	6:53	6:53	6:52	6:52	6:52	6:52	6:51	6:51	6:51	6:50	6:50	6:50	6:50	6:49	6:49	6:49	6:48	6:48	6:48	6:48	6:47	6:47	6:47	6:47	6:46
Sunset (PM)	6:58	6:57	6:57	6:57	6:56	6:56	6:55	6:55	6:54	6:54	6:53	6:53	6:53	6:52	6:52	6:51	6:51	6:50	6:50	6:49	6:49	6:48	6:48	6:48	6:47	6:47	6:46	6:46	6:45	6:45

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:54	6:58
2	12.1	6:54	6:57
3	12.1	6:54	6:57
4	12.0	6:54	6:57
5	12.0	6:53	6:56
6	12.0	6:53	6:56
7	12.0	6:53	6:55
8	12.0	6:52	6:55
9	12.0	6:52	6:54
10	12.0	6:52	6:54
11	12.0	6:52	6:53
12	12.0	6:51	6:53
13	12.0	6:51	6:53
14	12.0	6:51	6:52
15	12.0	6:50	6:52
16	12.0	6:50	6:51
17	12.0	6:50	6:51
18	12.0	6:50	6:50
19	12.0	6:49	6:50
20	12.0	6:49	6:49
21	12.0	6:49	6:49
22	12.0	6:48	6:48
23	12.0	6:48	6:48
24	12.0	6:48	6:48
25	12.0	6:48	6:47
26	12.0	6:47	6:47
27	12.0	6:47	6:46
28	12.0	6:47	6:46
29	12.0	6:47	6:45
30	12.0	6:46	6:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.73 kWh/m².

For context, solar energy here swings from a low near 5.04 kWh/m² to a high of 6.24 kWh/m² in February across the year — September's 5.73 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.5	5.5	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.7	5.7	5.7	5.7	5.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.5	Bright
2	5.5	Bright
3	5.6	Bright
4	5.6	Bright
5	5.6	Bright
6	5.6	Bright
7	5.7	Bright
8	5.7	Bright
9	5.7	Bright
10	5.7	Bright
11	5.7	Bright
12	5.8	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.8	Bright
19	5.8	Bright
20	5.8	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.8	Bright
26	5.7	Bright
27	5.7	Bright
28	5.7	Bright
29	5.7	Bright
30	5.7	Bright

Planning a trip in September

Hazard calendar for Arua

In seasonPeak

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

Arua's rainy season runs April–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 Arua?

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

4.9

Sightseeing

8th-best month of the year

5.6

Beach & pool

10th-best month of the year

September is a reasonable time to visit Arua for sightseeing.

What to pack for Arua in September

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

In September, Arua sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Arua 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 Arua peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 10 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	14	16	14	12	11	10	13	13	13	11	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	14	Extreme
Mar	16	Extreme
Apr	14	Extreme
May	12	Extreme
Jun	11	Extreme
Jul	10	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	13	Extreme
Nov	11	Extreme
Dec	10	Extreme

Air quality in Arua 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 Arua is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.8× the cleanest month (April, 19 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	55	48	30	19	20	28	30	25	22	22	26	40
Level	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	55	Poor
Feb	48	Poor
Mar	30	Moderate
Apr	19	Moderate
May	20	Moderate
Jun	28	Moderate
Jul	30	Moderate
Aug	25	Moderate
Sep	22	Moderate
Oct	22	Moderate
Nov	26	Moderate
Dec	40	Poor

Location & terrain

Where is Arua?

Arua sits at 3.0°N, 30.9°E, 1,215 m above sea level, in Uganda. The nearest listed city is Aru, 19 km away.

Topography around Arua

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

Within 3 km, the terrain around Arua has only modest variations in elevation — a maximum elevation change of 124 m around an average of 1,196 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 511 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,444 m.

The land around Arua is covered by artificial surfaces (38%) within 3 km, shrubs (44%), grassland (24%) and cropland (23%) within 16 km, and shrubs (45%) and grassland (32%) within 80 km.

3 km

124 m

artificial surfaces 38%

16 km

511 m

shrubs 44%

80 km

1,444 m

shrubs 45%

treesshrubsgrasslandcroplandartificial surfaceswaterwetland

← August Arua year-round climate October →Best places to visit in September

September weather nearby: Aru 19 km · Koboko 44 km · Yumbe 62 km · Nebbi 63 km · Paidha 68 km · Pakwach 90 km · Adjumani 105 km · Moyo 115 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

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 Arua (3.0201°, 30.911°, elevation 1,215 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).

	Avg high (°C)	Avg low (°C)
1	28	18
2	28	18
3	28	18
4	28	18
5	28	18
6	28	18
7	28	18
8	28	18
9	28	18
10	28	18
11	28	18
12	28	18
13	28	18
14	28	18
15	28	19
16	28	19
17	28	19
18	28	19
19	28	19
20	28	19
21	28	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19

	Clearer (%)	Cloudier (%)
1	41	59
2	41	59
3	42	58
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	48	52
10	49	51
11	49	51
12	51	49
13	50	50
14	51	49
15	50	50
16	50	50
17	50	50
18	49	51
19	48	52
20	47	53
21	46	54
22	45	55
23	42	58
24	41	59
25	39	61
26	39	61
27	37	63
28	35	65
29	35	65
30	33	67

	Rain chance (%)
1	65
2	65
3	64
4	64
5	63
6	63
7	62
8	62
9	61
10	60
11	59
12	58
13	57
14	55
15	55
16	54
17	53
18	53
19	52
20	52
21	52
22	52
23	53
24	53
25	54
26	54
27	55
28	56
29	57
30	58

	Comfortable (%)	Humid (%)	Muggy (%)
1	1	76	23
2	1	75	24
3	1	75	24
4	1	75	24
5	1	75	24
6	1	75	24
7	1	74	25
8	1	74	25
9	1	73	26
10	1	73	26
11	1	72	27
12	1	71	28
13	1	71	28
14	1	70	29
15	1	69	30
16	1	68	31
17	1	67	32
18	1	66	33
19	1	66	33
20	1	65	34
21	1	65	34
22	1	65	34
23	1	65	34
24	1	65	34
25	1	66	33
26	1	66	33
27	1	67	32
28	1	67	32
29	1	67	32
30	1	67	32

	Avg high (°C)	Avg low (°C)
1	28	18
2	28	18
3	28	18
4	28	18
5	28	18
6	28	18
7	28	18
8	28	18
9	28	18
10	28	18
11	28	18
12	28	18
13	28	18
14	28	18
15	28	19
16	28	19
17	28	19
18	28	19
19	28	19
20	28	19
21	28	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19

	Clearer (%)	Cloudier (%)
1	41	59
2	41	59
3	42	58
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	48	52
10	49	51
11	49	51
12	51	49
13	50	50
14	51	49
15	50	50
16	50	50
17	50	50
18	49	51
19	48	52
20	47	53
21	46	54
22	45	55
23	42	58
24	41	59
25	39	61
26	39	61
27	37	63
28	35	65
29	35	65
30	33	67

	Rain chance (%)
1	65
2	65
3	64
4	64
5	63
6	63
7	62
8	62
9	61
10	60
11	59
12	58
13	57
14	55
15	55
16	54
17	53
18	53
19	52
20	52
21	52
22	52
23	53
24	53
25	54
26	54
27	55
28	56
29	57
30	58

	Comfortable (%)	Humid (%)	Muggy (%)
1	1	76	23
2	1	75	24
3	1	75	24
4	1	75	24
5	1	75	24
6	1	75	24
7	1	74	25
8	1	74	25
9	1	73	26
10	1	73	26
11	1	72	27
12	1	71	28
13	1	71	28
14	1	70	29
15	1	69	30
16	1	68	31
17	1	67	32
18	1	66	33
19	1	66	33
20	1	65	34
21	1	65	34
22	1	65	34
23	1	65	34
24	1	65	34
25	1	66	33
26	1	66	33
27	1	67	32
28	1	67	32
29	1	67	32
30	1	67	32

	Avg high (°C)	Avg low (°C)
1	28	18
2	28	18
3	28	18
4	28	18
5	28	18
6	28	18
7	28	18
8	28	18
9	28	18
10	28	18
11	28	18
12	28	18
13	28	18
14	28	18
15	28	19
16	28	19
17	28	19
18	28	19
19	28	19
20	28	19
21	28	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19

	Clearer (%)	Cloudier (%)
1	41	59
2	41	59
3	42	58
4	43	57
5	44	56
6	45	55
7	46	54
8	47	53
9	48	52
10	49	51
11	49	51
12	51	49
13	50	50
14	51	49
15	50	50
16	50	50
17	50	50
18	49	51
19	48	52
20	47	53
21	46	54
22	45	55
23	42	58
24	41	59
25	39	61
26	39	61
27	37	63
28	35	65
29	35	65
30	33	67

	Rain chance (%)
1	65
2	65
3	64
4	64
5	63
6	63
7	62
8	62
9	61
10	60
11	59
12	58
13	57
14	55
15	55
16	54
17	53
18	53
19	52
20	52
21	52
22	52
23	53
24	53
25	54
26	54
27	55
28	56
29	57
30	58

	Comfortable (%)	Humid (%)	Muggy (%)
1	1	76	23
2	1	75	24
3	1	75	24
4	1	75	24
5	1	75	24
6	1	75	24
7	1	74	25
8	1	74	25
9	1	73	26
10	1	73	26
11	1	72	27
12	1	71	28
13	1	71	28
14	1	70	29
15	1	69	30
16	1	68	31
17	1	67	32
18	1	66	33
19	1	66	33
20	1	65	34
21	1	65	34
22	1	65	34
23	1	65	34
24	1	65	34
25	1	66	33
26	1	66	33
27	1	67	32
28	1	67	32
29	1	67	32
30	1	67	32