Úcua weather in September

In September, Úcua sees average daytime highs of 29°C and overnight lows near 20°C, with 11 mm of rain across 3.5 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 12% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Úcua's 5th-clearest and 1st-windiest month. For the whole year in context, see Úcua's year-round climate.

Daytime high: 29°; 9th warmest
Overnight low: 20°; 4th coldest
Rainfall: 11 mm; 3.5 wet days
Daylight: 12 hours; 5:59 AM – 5:56 PM
Cloud cover: 68%; 5th clearest
Wind: 6 km/h; 1st windiest
Solar energy: 4.26 kWh/m²
Travel score: 6.2; out of 10

← August Úcua 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 29°C through the month.

A typical September day in Úcua reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, September runs about 1°C warmer than 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	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	19	19	19	19	19	19	19	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	21	21	21

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

How September really feels in Úcua

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.

Úcua weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 22°	96	13.9	12.4	4.3
Feb	31° / 23°	103	12.6	12.3	3.9
Mar	30° / 23°	163	19.6	12.1	3.5
Apr	30° / 23°	228	24.2	11.8	3.3
May	29° / 22°	30	6.3	11.6	5.8
Jun	28° / 19°	1	0.2	11.5	7.8
Jul	28° / 18°	1	0.1	11.5	8.3
Aug	28° / 18°	4	1	11.7	7.7
Sep	29° / 20°	11	3.5	11.9	6.2
Oct	29° / 21°	42	10	12.2	5.0
Nov	29° / 22°	156	19.4	12.4	3.9
Dec	29° / 22°	124	17.1	12.5	4.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% 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 69%. Skies tend to cloud over as the month goes on.

	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 (%)	44	43	42	41	40	38	38	37	37	36	35	35	34	32	32	32	30	29	28	27	27	26	25	24	22	22	21	20	19	18
Cloudier (%)	56	57	58	59	60	62	62	63	63	64	65	65	66	68	68	68	70	71	72	73	73	74	75	76	78	78	79	80	81	82

	Clearer (%)	Cloudier (%)
1	44	56
2	43	57
3	42	58
4	41	59
5	40	60
6	38	62
7	38	62
8	37	63
9	37	63
10	36	64
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	30	70
18	29	71
19	28	72
20	27	73
21	27	73
22	26	74
23	25	75
24	24	76
25	22	78
26	22	78
27	21	79
28	20	80
29	19	81
30	18	82

Chance of precipitation in September

Any precipitation

Úcua gets around 11 mm of rain over 3.5 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 12% and peaks near 16% on the wettest days. The odds climb 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 (%)	6	6	7	7	8	8	9	9	10	10	11	12	12	13	13	13	14	14	14	14	14	14	14	14	14	14	15	15	15	16

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

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 32% 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 (%)	8	8	7	7	6	6	5	5	4	4	3	3	2	2	2	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0
Humid (%)	82	81	82	81	81	80	80	79	79	77	76	74	73	71	69	68	65	63	62	59	57	54	52	50	48	46	43	41	39	38
Muggy (%)	10	11	11	12	13	14	15	16	17	19	21	23	25	27	29	31	34	36	38	41	43	46	48	50	52	54	57	59	61	62

	Comfortable (%)	Humid (%)	Muggy (%)
1	8	82	10
2	8	81	11
3	7	82	11
4	7	81	12
5	6	81	13
6	6	80	14
7	5	80	15
8	5	79	16
9	4	79	17
10	4	77	19
11	3	76	21
12	3	74	23
13	2	73	25
14	2	71	27
15	2	69	29
16	1	68	31
17	1	65	34
18	1	63	36
19	0	62	38
20	0	59	41
21	0	57	43
22	0	54	46
23	0	52	48
24	0	50	50
25	0	48	52
26	0	46	54
27	0	43	57
28	0	41	59
29	0	39	61
30	0	38	62

Wind in September

Winds average 6 km/h in September, the windiest month of the year.

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 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:08 AM to 5:51 AM, and sunset from 5:58 PM to 5:55 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)	11.8	11.8	11.8	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.1	12.1	12.1
Sunrise (AM)	6:08	6:08	6:07	6:06	6:06	6:05	6:05	6:04	6:03	6:03	6:02	6:02	6:01	6:00	6:00	5:59	5:58	5:58	5:57	5:57	5:56	5:55	5:55	5:54	5:54	5:53	5:52	5:52	5:51	5:51
Sunset (PM)	5:58	5:58	5:58	5:58	5:58	5:58	5:57	5:57	5:57	5:57	5:57	5:57	5:57	5:57	5:56	5:56	5:56	5:56	5:56	5:56	5:56	5:56	5:55	5:55	5:55	5:55	5:55	5:55	5:55	5:55

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	6:08	5:58
2	11.8	6:08	5:58
3	11.8	6:07	5:58
4	11.9	6:06	5:58
5	11.9	6:06	5:58
6	11.9	6:05	5:58
7	11.9	6:05	5:57
8	11.9	6:04	5:57
9	11.9	6:03	5:57
10	11.9	6:03	5:57
11	11.9	6:02	5:57
12	11.9	6:02	5:57
13	11.9	6:01	5:57
14	11.9	6:00	5:57
15	11.9	6:00	5:56
16	12.0	5:59	5:56
17	12.0	5:58	5:56
18	12.0	5:58	5:56
19	12.0	5:57	5:56
20	12.0	5:57	5:56
21	12.0	5:56	5:56
22	12.0	5:55	5:56
23	12.0	5:55	5:55
24	12.0	5:54	5:55
25	12.0	5:54	5:55
26	12.0	5:53	5:55
27	12.0	5:52	5:55
28	12.1	5:52	5:55
29	12.1	5:51	5:55
30	12.1	5:51	5:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.26 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.46 kWh/m² in February across the year — September's 4.26 kWh/m² sits near the bottom.

	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)	4.5	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.4	4.3	4.3	4.3	4.3	4.3	4.3	4.3	4.2	4.2	4.2	4.2	4.1	4.1	4.1	4.1	4.1	4.0	4.0	4.0	4.0
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	Moderate

	Solar energy (kWh/m²)	Level
1	4.5	Bright
2	4.4	Bright
3	4.4	Bright
4	4.4	Bright
5	4.4	Bright
6	4.4	Bright
7	4.4	Bright
8	4.4	Bright
9	4.4	Bright
10	4.4	Bright
11	4.3	Bright
12	4.3	Bright
13	4.3	Bright
14	4.3	Bright
15	4.3	Bright
16	4.3	Bright
17	4.3	Bright
18	4.2	Bright
19	4.2	Bright
20	4.2	Bright
21	4.2	Bright
22	4.1	Bright
23	4.1	Bright
24	4.1	Bright
25	4.1	Bright
26	4.1	Bright
27	4.0	Bright
28	4.0	Bright
29	4.0	Bright
30	4.0	Moderate

Planning a trip in September

Hazard calendar for Úcua

In seasonPeak

None of Úcua's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Úcua's monsoon runs February–April, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Úcua?

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

6.2

Sightseeing

4th-best month of the year

7.7

Beach & pool

4th-best month of the year

September is a reasonable time to visit Úcua for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Úcua in September

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

In September, Úcua sees daytime highs around 29°C and nights near 20°C. Pack light clothes. About 4 days see rain.

light clothes

UV index in Úcua in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Úcua peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 6 (high).

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)	14	14	15	13	9	8	7	6	9	12	12	12
Level	Extreme	Extreme	Extreme	Extreme	Very high	Very high	High	High	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	14	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	9	Very high
Jun	8	Very high
Jul	7	High
Aug	6	High
Sep	9	Very high
Oct	12	Extreme
Nov	12	Extreme
Dec	12	Extreme

Air quality in Úcua 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 Úcua is worst in June — around 61 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (January, 30 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)	30	32	37	41	46	61	61	50	54	42	32	34
Level	Moderate	Moderate	Poor	Poor	Poor	Unhealthy	Unhealthy	Poor	Poor	Poor	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	30	Moderate
Feb	32	Moderate
Mar	37	Poor
Apr	41	Poor
May	46	Poor
Jun	61	Unhealthy
Jul	61	Unhealthy
Aug	50	Poor
Sep	54	Poor
Oct	42	Poor
Nov	32	Moderate
Dec	34	Moderate

Location & terrain

Where is Úcua?

Úcua sits at 8.7°S, 14.2°E, 245 m above sea level, in Angola. The nearest listed city is Piri, 33 km away.

Topography around Úcua

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

Within 3 km, the terrain around Úcua has only modest variations in elevation — a maximum elevation change of 186 m around an average of 256 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 660 m; within 80 km, large variations in elevation — a maximum elevation change of 1,029 m.

The land around Úcua is covered by trees (69%) and grassland (21%) within 3 km, trees (85%) within 16 km, and trees (76%) and grassland (21%) within 80 km.

3 km

186 m

trees 69%

16 km

660 m

trees 85%

80 km

1,029 m

trees 76%

treesshrubsgrasslandartificial surfaceswaterwetland

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

September weather nearby: Piri 33 km · Pango Aluquém 34 km · Cage Mazumbo 44 km · Mabubas 54 km · Canacassala 55 km · Caxito 55 km · Gombe 60 km · Muxaluando 61 km

Angola travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 220 V · 50 Hz
Prices: ≈ 35% of US; price level, 2025
GDP per capita: $3,129; 2025
Happiness: 3.8 / 10; World Happiness, 2017
Homicide rate: 4.1; per 100k, 2016
Road deaths: 26.1; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Very low; EF EPI 413
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 Úcua (-8.6516°, 14.1565°, elevation 245 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	19
2	28	19
3	28	19
4	28	19
5	29	19
6	29	19
7	29	19
8	29	20
9	29	20
10	29	20
11	29	20
12	29	20
13	29	20
14	29	20
15	29	20
16	29	20
17	29	20
18	29	20
19	29	20
20	29	20
21	29	20
22	29	20
23	29	20
24	29	20
25	29	20
26	29	20
27	29	20
28	29	21
29	29	21
30	29	21

	Clearer (%)	Cloudier (%)
1	44	56
2	43	57
3	42	58
4	41	59
5	40	60
6	38	62
7	38	62
8	37	63
9	37	63
10	36	64
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	30	70
18	29	71
19	28	72
20	27	73
21	27	73
22	26	74
23	25	75
24	24	76
25	22	78
26	22	78
27	21	79
28	20	80
29	19	81
30	18	82

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	8	82	10
2	8	81	11
3	7	82	11
4	7	81	12
5	6	81	13
6	6	80	14
7	5	80	15
8	5	79	16
9	4	79	17
10	4	77	19
11	3	76	21
12	3	74	23
13	2	73	25
14	2	71	27
15	2	69	29
16	1	68	31
17	1	65	34
18	1	63	36
19	0	62	38
20	0	59	41
21	0	57	43
22	0	54	46
23	0	52	48
24	0	50	50
25	0	48	52
26	0	46	54
27	0	43	57
28	0	41	59
29	0	39	61
30	0	38	62

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

	Clearer (%)	Cloudier (%)
1	44	56
2	43	57
3	42	58
4	41	59
5	40	60
6	38	62
7	38	62
8	37	63
9	37	63
10	36	64
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	30	70
18	29	71
19	28	72
20	27	73
21	27	73
22	26	74
23	25	75
24	24	76
25	22	78
26	22	78
27	21	79
28	20	80
29	19	81
30	18	82

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	8	82	10
2	8	81	11
3	7	82	11
4	7	81	12
5	6	81	13
6	6	80	14
7	5	80	15
8	5	79	16
9	4	79	17
10	4	77	19
11	3	76	21
12	3	74	23
13	2	73	25
14	2	71	27
15	2	69	29
16	1	68	31
17	1	65	34
18	1	63	36
19	0	62	38
20	0	59	41
21	0	57	43
22	0	54	46
23	0	52	48
24	0	50	50
25	0	48	52
26	0	46	54
27	0	43	57
28	0	41	59
29	0	39	61
30	0	38	62

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

	Clearer (%)	Cloudier (%)
1	44	56
2	43	57
3	42	58
4	41	59
5	40	60
6	38	62
7	38	62
8	37	63
9	37	63
10	36	64
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	30	70
18	29	71
19	28	72
20	27	73
21	27	73
22	26	74
23	25	75
24	24	76
25	22	78
26	22	78
27	21	79
28	20	80
29	19	81
30	18	82

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

	Comfortable (%)	Humid (%)	Muggy (%)
1	8	82	10
2	8	81	11
3	7	82	11
4	7	81	12
5	6	81	13
6	6	80	14
7	5	80	15
8	5	79	16
9	4	79	17
10	4	77	19
11	3	76	21
12	3	74	23
13	2	73	25
14	2	71	27
15	2	69	29
16	1	68	31
17	1	65	34
18	1	63	36
19	0	62	38
20	0	59	41
21	0	57	43
22	0	54	46
23	0	52	48
24	0	50	50
25	0	48	52
26	0	46	54
27	0	43	57
28	0	41	59
29	0	39	61
30	0	38	62