Voinjama weather in September

In September, Voinjama sees average daytime highs of 27°C and overnight lows near 21°C, with 360 mm of rain across 28.8 wet days and about 12 hours of daylight. It is the 10th-warmest and 1st-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 0% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Voinjama's 9th-clearest and 8th-windiest month. For the whole year in context, see Voinjama's year-round climate.

Daytime high: 27°; 10th warmest
Overnight low: 21°; 8th coldest
Rainfall: 360 mm; 28.8 wet days
Daylight: 12 hours; 6:32 AM – 6:35 PM
Cloud cover: 84%; 9th clearest
Wind: 5 km/h; 8th windiest
Solar energy: 4.17 kWh/m²
Travel score: 3.4; out of 10

Voinjama is human settlement in Liberia.

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

← August Voinjama 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 Voinjama reaches about 27°C in the afternoon and slips back to 21°C overnight — a 7°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 about 1°C warmer than August and about 1°C cooler than 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	28	28	28	28	28	28	28	28
Avg low (°C)	20	20	20	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20	20	20	20	20

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

How September really feels in Voinjama

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.

Voinjama weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 19°	16	2.8	11.6	5.1
Feb	33° / 20°	34	5.6	11.7	4.1
Mar	32° / 22°	99	15	11.9	3.6
Apr	30° / 22°	148	21.7	12.2	3.4
May	29° / 21°	228	27.1	12.4	3.2
Jun	28° / 21°	276	27.9	12.5	3.4
Jul	27° / 20°	324	29	12.4	3.6
Aug	26° / 20°	348	28.9	12.3	3.6
Sep	27° / 21°	360	28.8	12	3.4
Oct	28° / 20°	274	29	11.8	3.4
Nov	29° / 20°	117	16.5	11.6	4.7
Dec	30° / 19°	17	3.7	11.5	5.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 93%.

	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 (%)	3	3	4	4	4	4	5	5	5	5	5	6	6	6	6	6	6	6	6	7	7	8	8	9	9	10	10	10	11	11
Cloudier (%)	97	97	96	96	96	96	95	95	95	95	95	94	94	94	94	94	94	94	94	93	93	92	92	91	91	90	90	90	89	89

	Clearer (%)	Cloudier (%)
1	3	97
2	3	97
3	4	96
4	4	96
5	4	96
6	4	96
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	6	94
13	6	94
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	7	93
21	7	93
22	8	92
23	8	92
24	9	91
25	9	91
26	10	90
27	10	90
28	10	90
29	11	89
30	11	89

Chance of precipitation in September

Any precipitation

Voinjama gets around 360 mm of rain over 28.8 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 96% and peaks near 97% on the wettest days.

	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 (%)	96	96	96	96	96	96	96	96	96	96	96	96	96	96	97	97	97	97	97	97	97	97	97	97	97	96	96	96	96	96

	Rain chance (%)
1	96
2	96
3	96
4	96
5	96
6	96
7	96
8	96
9	96
10	96
11	96
12	96
13	96
14	96
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	96
27	96
28	96
29	96
30	96

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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
Muggy (%)	73	72	72	71	70	69	68	68	66	65	64	63	62	61	60	59	58	58	57	57	56	56	55	55	55	54	54	54	53	53
Oppressive (%)	27	28	28	29	30	31	32	32	34	35	36	37	38	39	40	41	42	42	43	43	44	44	45	45	45	46	46	46	47	47

	Muggy (%)	Oppressive (%)
1	73	27
2	72	28
3	72	28
4	71	29
5	70	30
6	69	31
7	68	32
8	68	32
9	66	34
10	65	35
11	64	36
12	63	37
13	62	38
14	61	39
15	60	40
16	59	41
17	58	42
18	58	42
19	57	43
20	57	43
21	56	44
22	56	44
23	55	45
24	55	45
25	55	45
26	54	46
27	54	46
28	54	46
29	53	47
30	53	47

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 7 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)	7	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	4
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	7	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	5	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	4	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:34 AM to 6:30 AM, and sunset from 6:44 PM to 6:26 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)	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	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	11.9	11.9
Sunrise (AM)	6:34	6:34	6:34	6:33	6:33	6:33	6:33	6:33	6:33	6:33	6:33	6:32	6:32	6:32	6:32	6:32	6:32	6:32	6:32	6:31	6:31	6:31	6:31	6:31	6:31	6:31	6:31	6:30	6:30	6:30
Sunset (PM)	6:44	6:43	6:42	6:42	6:41	6:41	6:40	6:40	6:39	6:38	6:38	6:37	6:37	6:36	6:35	6:35	6:34	6:33	6:33	6:32	6:32	6:31	6:30	6:30	6:29	6:29	6:28	6:27	6:27	6:26

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:34	6:44
2	12.2	6:34	6:43
3	12.1	6:34	6:42
4	12.1	6:33	6:42
5	12.1	6:33	6:41
6	12.1	6:33	6:41
7	12.1	6:33	6:40
8	12.1	6:33	6:40
9	12.1	6:33	6:39
10	12.1	6:33	6:38
11	12.1	6:33	6:38
12	12.1	6:32	6:37
13	12.1	6:32	6:37
14	12.1	6:32	6:36
15	12.1	6:32	6:35
16	12.0	6:32	6:35
17	12.0	6:32	6:34
18	12.0	6:32	6:33
19	12.0	6:32	6:33
20	12.0	6:31	6:32
21	12.0	6:31	6:32
22	12.0	6:31	6:31
23	12.0	6:31	6:30
24	12.0	6:31	6:30
25	12.0	6:31	6:29
26	12.0	6:31	6:29
27	12.0	6:31	6:28
28	12.0	6:30	6:27
29	11.9	6:30	6:27
30	11.9	6:30	6:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.17 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 5.71 kWh/m² in February across the year — September's 4.17 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)	3.8	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.2	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3	4.4	4.4	4.4	4.4	4.5	4.5	4.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	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	3.8	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	4.0	Moderate
7	4.0	Moderate
8	4.0	Bright
9	4.0	Bright
10	4.0	Bright
11	4.1	Bright
12	4.1	Bright
13	4.1	Bright
14	4.2	Bright
15	4.2	Bright
16	4.2	Bright
17	4.2	Bright
18	4.2	Bright
19	4.3	Bright
20	4.3	Bright
21	4.3	Bright
22	4.3	Bright
23	4.3	Bright
24	4.4	Bright
25	4.4	Bright
26	4.4	Bright
27	4.4	Bright
28	4.5	Bright
29	4.5	Bright
30	4.5	Bright

Planning a trip in September

Hazard calendar for Voinjama

In seasonPeak

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

Voinjama's rainy season runs May–October, when most of the year's rain falls.

Voinjama sees seasonal dust haze (April), heaviest in April.

Rainy season

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Voinjama?

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

3.4

Sightseeing

8th-best month of the year

3.5

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Voinjama.

What to pack for Voinjama in September

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

In September, Voinjama sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Voinjama 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 Voinjama peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very 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)	10	12	13	12	13	12	12	13	13	12	9	8
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	10	Extreme
Feb	12	Extreme
Mar	13	Extreme
Apr	12	Extreme
May	13	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	9	Very high
Dec	8	Very high

Air quality in Voinjama 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 Voinjama is worst in March — around 201 µg/m³ PM2.5 (very unhealthy), about 24.2× the cleanest month (August, 8 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)	63	119	201	59	22	15	10	8	9	15	21	41
Level	Unhealthy	Unhealthy	Very unhealthy	Unhealthy	Moderate	Moderate	Good	Good	Good	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	63	Unhealthy
Feb	119	Unhealthy
Mar	201	Very unhealthy
Apr	59	Unhealthy
May	22	Moderate
Jun	15	Moderate
Jul	10	Good
Aug	8	Good
Sep	9	Good
Oct	15	Moderate
Nov	21	Moderate
Dec	41	Poor

Location & terrain

Where is Voinjama?

Voinjama sits at 8.4°N, 9.7°W, 550 m above sea level, in Liberia. The nearest listed city is Macenta, 33 km away.

Topography around Voinjama

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

Within 3 km, the terrain around Voinjama has only modest variations in elevation — a maximum elevation change of 224 m around an average of 548 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 392 m; within 80 km, large variations in elevation — a maximum elevation change of 1,131 m.

The land around Voinjama is covered by grassland (55%) and trees (39%) within 3 km, trees (83%) within 16 km, and trees (80%) and grassland (20%) within 80 km.

3 km

224 m

grassland 55%

16 km

392 m

trees 83%

80 km

1,131 m

trees 80%

treesgrasslandartificial surfaces

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

September weather nearby: Macenta 33 km · Gueckedou 45 km · Foya Kamara 51 km · Yende Millimou 70 km · Kissidougou 93 km · Kérouané 124 km · Beyla 124 km · Nzérékoré 126 km

Liberia travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 0% of US; price level, 2025
GDP per capita: $915; 2025
Happiness: 4.3 / 10; World Happiness, 2025
Homicide rate: 3.1; per 100k, 2012
Road deaths: 38.9; per 100k/yr, 2019
Income group: Low; World Bank
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 Voinjama (8.4219°, -9.7478°, elevation 550 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	20
2	27	20
3	27	20
4	27	20
5	27	21
6	27	21
7	27	21
8	27	21
9	27	21
10	27	21
11	27	21
12	27	21
13	27	21
14	27	21
15	27	21
16	27	21
17	27	21
18	27	21
19	27	21
20	27	21
21	27	21
22	27	21
23	28	21
24	28	21
25	28	20
26	28	20
27	28	20
28	28	20
29	28	20
30	28	20

	Clearer (%)	Cloudier (%)
1	3	97
2	3	97
3	4	96
4	4	96
5	4	96
6	4	96
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	6	94
13	6	94
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	7	93
21	7	93
22	8	92
23	8	92
24	9	91
25	9	91
26	10	90
27	10	90
28	10	90
29	11	89
30	11	89

	Rain chance (%)
1	96
2	96
3	96
4	96
5	96
6	96
7	96
8	96
9	96
10	96
11	96
12	96
13	96
14	96
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	96
27	96
28	96
29	96
30	96

	Muggy (%)	Oppressive (%)
1	73	27
2	72	28
3	72	28
4	71	29
5	70	30
6	69	31
7	68	32
8	68	32
9	66	34
10	65	35
11	64	36
12	63	37
13	62	38
14	61	39
15	60	40
16	59	41
17	58	42
18	58	42
19	57	43
20	57	43
21	56	44
22	56	44
23	55	45
24	55	45
25	55	45
26	54	46
27	54	46
28	54	46
29	53	47
30	53	47

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

	Clearer (%)	Cloudier (%)
1	3	97
2	3	97
3	4	96
4	4	96
5	4	96
6	4	96
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	6	94
13	6	94
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	7	93
21	7	93
22	8	92
23	8	92
24	9	91
25	9	91
26	10	90
27	10	90
28	10	90
29	11	89
30	11	89

	Rain chance (%)
1	96
2	96
3	96
4	96
5	96
6	96
7	96
8	96
9	96
10	96
11	96
12	96
13	96
14	96
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	96
27	96
28	96
29	96
30	96

	Muggy (%)	Oppressive (%)
1	73	27
2	72	28
3	72	28
4	71	29
5	70	30
6	69	31
7	68	32
8	68	32
9	66	34
10	65	35
11	64	36
12	63	37
13	62	38
14	61	39
15	60	40
16	59	41
17	58	42
18	58	42
19	57	43
20	57	43
21	56	44
22	56	44
23	55	45
24	55	45
25	55	45
26	54	46
27	54	46
28	54	46
29	53	47
30	53	47

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

	Clearer (%)	Cloudier (%)
1	3	97
2	3	97
3	4	96
4	4	96
5	4	96
6	4	96
7	5	95
8	5	95
9	5	95
10	5	95
11	5	95
12	6	94
13	6	94
14	6	94
15	6	94
16	6	94
17	6	94
18	6	94
19	6	94
20	7	93
21	7	93
22	8	92
23	8	92
24	9	91
25	9	91
26	10	90
27	10	90
28	10	90
29	11	89
30	11	89

	Rain chance (%)
1	96
2	96
3	96
4	96
5	96
6	96
7	96
8	96
9	96
10	96
11	96
12	96
13	96
14	96
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	96
27	96
28	96
29	96
30	96

	Muggy (%)	Oppressive (%)
1	73	27
2	72	28
3	72	28
4	71	29
5	70	30
6	69	31
7	68	32
8	68	32
9	66	34
10	65	35
11	64	36
12	63	37
13	62	38
14	61	39
15	60	40
16	59	41
17	58	42
18	58	42
19	57	43
20	57	43
21	56	44
22	56	44
23	55	45
24	55	45
25	55	45
26	54	46
27	54	46
28	54	46
29	53	47
30	53	47