Uíge weather in September

In September, Uíge sees average daytime highs of 27°C and overnight lows near 18°C, with 58 mm of rain across 14.2 wet days and about 12 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 8% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Uíge's 5th-clearest and 2nd-windiest month. For the whole year in context, see Uíge's year-round climate.

Daytime high: 27°; 7th warmest
Overnight low: 18°; 4th coldest
Rainfall: 58 mm; 14.2 wet days
Daylight: 12 hours; 5:55 AM – 5:53 PM
Cloud cover: 71%; 5th clearest
Wind: 6 km/h; 2nd windiest
Solar energy: 4.93 kWh/m²
Travel score: 5.6; out of 10

← August Uíge 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 27°C through the month.

A typical September day in Uíge reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°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)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27
Avg low (°C)	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18

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

Uíge weather by month

How September compares with the rest of the year at a glance. September is the 7th-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	27° / 19°	190	23.2	12.4	4.3
Feb	27° / 19°	158	19.1	12.2	4.6
Mar	28° / 19°	230	23.2	12.1	4.2
Apr	28° / 19°	327	26.9	11.8	3.7
May	28° / 19°	140	16.7	11.7	5.5
Jun	28° / 16°	11	2.3	11.6	7.9
Jul	28° / 15°	2	0.4	11.6	8.1
Aug	27° / 16°	13	3.4	11.8	7.6
Sep	27° / 18°	58	14.2	12	5.6
Oct	27° / 19°	237	26.2	12.2	4.0
Nov	27° / 19°	322	26.5	12.3	3.8
Dec	26° / 19°	266	26.1	12.4	4.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% 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 73%. 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	42	42	39	39	37	37	34	33	32	31	30	29	27	27	24	24	23	21	21	20	20	20	19	19	17	17	16	16	16
Cloudier (%)	56	58	58	61	61	63	63	66	67	68	69	70	71	73	73	76	76	77	79	79	80	80	80	81	81	83	83	84	84	84

	Clearer (%)	Cloudier (%)
1	44	56
2	42	58
3	42	58
4	39	61
5	39	61
6	37	63
7	37	63
8	34	66
9	33	67
10	32	68
11	31	69
12	30	70
13	29	71
14	27	73
15	27	73
16	24	76
17	24	76
18	23	77
19	21	79
20	21	79
21	20	80
22	20	80
23	20	80
24	19	81
25	19	81
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

Chance of precipitation in September

Any precipitation

Uíge gets around 58 mm of rain over 14.2 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 47% and peaks near 64% 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 (%)	26	27	28	29	31	32	34	36	38	40	42	44	46	48	49	51	52	54	55	56	57	57	58	59	59	60	60	61	62	64

	Rain chance (%)
1	26
2	27
3	28
4	29
5	31
6	32
7	34
8	36
9	38
10	40
11	42
12	44
13	46
14	48
15	49
16	51
17	52
18	54
19	55
20	56
21	57
22	57
23	58
24	59
25	59
26	60
27	60
28	61
29	62
30	64

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 18% 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 (%)	36	34	33	31	29	27	24	22	20	18	16	14	12	10	8	7	6	5	4	3	2	2	2	1	1	1	1	0	0	0
Humid (%)	61	62	63	65	66	68	70	71	72	73	74	74	75	75	75	75	74	73	73	73	72	71	70	70	68	67	65	64	62	60
Muggy (%)	3	4	4	4	5	5	6	7	8	9	10	12	13	15	17	18	20	22	23	24	26	27	28	29	31	32	34	36	38	40

	Comfortable (%)	Humid (%)	Muggy (%)
1	36	61	3
2	34	62	4
3	33	63	4
4	31	65	4
5	29	66	5
6	27	68	5
7	24	70	6
8	22	71	7
9	20	72	8
10	18	73	9
11	16	74	10
12	14	74	12
13	12	75	13
14	10	75	15
15	8	75	17
16	7	75	18
17	6	74	20
18	5	73	22
19	4	73	23
20	3	73	24
21	2	72	26
22	2	71	27
23	2	70	28
24	1	70	29
25	1	68	31
26	1	67	32
27	1	65	34
28	0	64	36
29	0	62	38
30	0	60	40

Wind in September

Winds average 6 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.

	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	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
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	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 6:04 AM to 5:47 AM, and sunset from 5:55 PM to 5:51 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)	11.9	11.9	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	12.0	12.0	12.1	12.1
Sunrise (AM)	6:04	6:03	6:03	6:02	6:02	6:01	6:01	6:00	5:59	5:59	5:58	5:58	5:57	5:56	5:56	5:55	5:55	5:54	5:54	5:53	5:52	5:52	5:51	5:51	5:50	5:50	5:49	5:48	5:48	5:47
Sunset (PM)	5:55	5:55	5:55	5:55	5:55	5:54	5:54	5:54	5:54	5:54	5:54	5:53	5:53	5:53	5:53	5:53	5:53	5:53	5:52	5:52	5:52	5:52	5:52	5:52	5:51	5:51	5:51	5:51	5:51	5:51

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	6:04	5:55
2	11.9	6:03	5:55
3	11.9	6:03	5:55
4	11.9	6:02	5:55
5	11.9	6:02	5:55
6	11.9	6:01	5:54
7	11.9	6:01	5:54
8	11.9	6:00	5:54
9	11.9	5:59	5:54
10	11.9	5:59	5:54
11	11.9	5:58	5:54
12	11.9	5:58	5:53
13	11.9	5:57	5:53
14	11.9	5:56	5:53
15	12.0	5:56	5:53
16	12.0	5:55	5:53
17	12.0	5:55	5:53
18	12.0	5:54	5:53
19	12.0	5:54	5:52
20	12.0	5:53	5:52
21	12.0	5:52	5:52
22	12.0	5:52	5:52
23	12.0	5:51	5:52
24	12.0	5:51	5:52
25	12.0	5:50	5:51
26	12.0	5:50	5:51
27	12.0	5:49	5:51
28	12.0	5:48	5:51
29	12.1	5:48	5:51
30	12.1	5:47	5:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.93 kWh/m².

For context, solar energy here swings from a low near 4.85 kWh/m² to a high of 5.42 kWh/m² in July across the year — September's 4.93 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)	5.0	5.0	5.0	5.0	5.0	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9
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	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	4.9	Bright
9	4.9	Bright
10	4.9	Bright
11	4.9	Bright
12	4.9	Bright
13	4.9	Bright
14	4.9	Bright
15	4.9	Bright
16	4.9	Bright
17	4.9	Bright
18	4.9	Bright
19	4.9	Bright
20	4.9	Bright
21	4.9	Bright
22	4.9	Bright
23	4.9	Bright
24	4.9	Bright
25	4.9	Bright
26	4.9	Bright
27	4.9	Bright
28	4.9	Bright
29	4.9	Bright
30	4.9	Bright

Planning a trip in September

Hazard calendar for Uíge

In seasonPeak

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

Uíge's rainy season runs October–April, 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 Uíge?

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

5.6

Sightseeing

4th-best month of the year

5.8

Beach & pool

5th-best month of the year

September is a reasonable time to visit Uíge for sightseeing.

What to pack for Uíge in September

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

In September, Uíge sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Uíge 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 Uíge peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 7 (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)	15	15	15	14	9	9	8	7	9	13	12	11
Level	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	High	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	15	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	9	Very high
Jun	9	Very high
Jul	8	Very high
Aug	7	High
Sep	9	Very high
Oct	13	Extreme
Nov	12	Extreme
Dec	11	Extreme

Air quality in Uíge 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 Uíge is worst in June — around 72 µg/m³ PM2.5 (unhealthy), about 6.6× the cleanest month (November, 11 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)	13	14	15	15	43	72	60	48	69	20	11	12
Level	Moderate	Moderate	Moderate	Moderate	Poor	Unhealthy	Unhealthy	Poor	Unhealthy	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	13	Moderate
Feb	14	Moderate
Mar	15	Moderate
Apr	15	Moderate
May	43	Poor
Jun	72	Unhealthy
Jul	60	Unhealthy
Aug	48	Poor
Sep	69	Unhealthy
Oct	20	Moderate
Nov	11	Good
Dec	12	Good

Location & terrain

Where is Uíge?

Uíge sits at 7.6°S, 15.1°E, 825 m above sea level, in Angola. The nearest listed city is Negage, 29 km away.

Topography around Uíge

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

Within 3 km, the terrain around Uíge has only modest variations in elevation — a maximum elevation change of 147 m around an average of 829 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 644 m; within 80 km, large variations in elevation — a maximum elevation change of 970 m.

The land around Uíge is covered by artificial surfaces (62%) and trees (21%) within 3 km, trees (53%) and grassland (29%) within 16 km, and trees (47%) and grassland (45%) within 80 km.

3 km

147 m

artificial surfaces 62%

16 km

644 m

trees 53%

80 km

970 m

trees 47%

treesshrubsgrasslandartificial surfaces

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

September weather nearby: Negage 29 km · Songo 37 km · Camabatela 73 km · Nzagi 90 km · Gombe 102 km · Muxaluando 103 km · Sanza Pombo 109 km · Cage Mazumbo 110 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 Uíge (-7.6087°, 15.0613°, elevation 825 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	27	17
2	27	17
3	27	17
4	27	17
5	27	17
6	27	17
7	27	17
8	27	17
9	27	18
10	27	18
11	27	18
12	27	18
13	27	18
14	27	18
15	27	18
16	27	18
17	27	18
18	27	18
19	27	18
20	27	18
21	27	18
22	27	18
23	27	18
24	27	18
25	27	18
26	27	18
27	27	18
28	27	18
29	27	18
30	27	18

	Clearer (%)	Cloudier (%)
1	44	56
2	42	58
3	42	58
4	39	61
5	39	61
6	37	63
7	37	63
8	34	66
9	33	67
10	32	68
11	31	69
12	30	70
13	29	71
14	27	73
15	27	73
16	24	76
17	24	76
18	23	77
19	21	79
20	21	79
21	20	80
22	20	80
23	20	80
24	19	81
25	19	81
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	26
2	27
3	28
4	29
5	31
6	32
7	34
8	36
9	38
10	40
11	42
12	44
13	46
14	48
15	49
16	51
17	52
18	54
19	55
20	56
21	57
22	57
23	58
24	59
25	59
26	60
27	60
28	61
29	62
30	64

	Comfortable (%)	Humid (%)	Muggy (%)
1	36	61	3
2	34	62	4
3	33	63	4
4	31	65	4
5	29	66	5
6	27	68	5
7	24	70	6
8	22	71	7
9	20	72	8
10	18	73	9
11	16	74	10
12	14	74	12
13	12	75	13
14	10	75	15
15	8	75	17
16	7	75	18
17	6	74	20
18	5	73	22
19	4	73	23
20	3	73	24
21	2	72	26
22	2	71	27
23	2	70	28
24	1	70	29
25	1	68	31
26	1	67	32
27	1	65	34
28	0	64	36
29	0	62	38
30	0	60	40

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

	Clearer (%)	Cloudier (%)
1	44	56
2	42	58
3	42	58
4	39	61
5	39	61
6	37	63
7	37	63
8	34	66
9	33	67
10	32	68
11	31	69
12	30	70
13	29	71
14	27	73
15	27	73
16	24	76
17	24	76
18	23	77
19	21	79
20	21	79
21	20	80
22	20	80
23	20	80
24	19	81
25	19	81
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	26
2	27
3	28
4	29
5	31
6	32
7	34
8	36
9	38
10	40
11	42
12	44
13	46
14	48
15	49
16	51
17	52
18	54
19	55
20	56
21	57
22	57
23	58
24	59
25	59
26	60
27	60
28	61
29	62
30	64

	Comfortable (%)	Humid (%)	Muggy (%)
1	36	61	3
2	34	62	4
3	33	63	4
4	31	65	4
5	29	66	5
6	27	68	5
7	24	70	6
8	22	71	7
9	20	72	8
10	18	73	9
11	16	74	10
12	14	74	12
13	12	75	13
14	10	75	15
15	8	75	17
16	7	75	18
17	6	74	20
18	5	73	22
19	4	73	23
20	3	73	24
21	2	72	26
22	2	71	27
23	2	70	28
24	1	70	29
25	1	68	31
26	1	67	32
27	1	65	34
28	0	64	36
29	0	62	38
30	0	60	40

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

	Clearer (%)	Cloudier (%)
1	44	56
2	42	58
3	42	58
4	39	61
5	39	61
6	37	63
7	37	63
8	34	66
9	33	67
10	32	68
11	31	69
12	30	70
13	29	71
14	27	73
15	27	73
16	24	76
17	24	76
18	23	77
19	21	79
20	21	79
21	20	80
22	20	80
23	20	80
24	19	81
25	19	81
26	17	83
27	17	83
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	26
2	27
3	28
4	29
5	31
6	32
7	34
8	36
9	38
10	40
11	42
12	44
13	46
14	48
15	49
16	51
17	52
18	54
19	55
20	56
21	57
22	57
23	58
24	59
25	59
26	60
27	60
28	61
29	62
30	64

	Comfortable (%)	Humid (%)	Muggy (%)
1	36	61	3
2	34	62	4
3	33	63	4
4	31	65	4
5	29	66	5
6	27	68	5
7	24	70	6
8	22	71	7
9	20	72	8
10	18	73	9
11	16	74	10
12	14	74	12
13	12	75	13
14	10	75	15
15	8	75	17
16	7	75	18
17	6	74	20
18	5	73	22
19	4	73	23
20	3	73	24
21	2	72	26
22	2	71	27
23	2	70	28
24	1	70	29
25	1	68	31
26	1	67	32
27	1	65	34
28	0	64	36
29	0	62	38
30	0	60	40