Sédhiou weather in September

In September, Sédhiou sees average daytime highs of 31°C and overnight lows near 24°C, with 238 mm of rain across 23.3 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels miserable.

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 Sédhiou's 10th-clearest and 10th-windiest month. For the whole year in context, see Sédhiou's year-round climate.

Daytime high: 31°; 11th warmest
Overnight low: 24°; 7th coldest
Rainfall: 238 mm; 23.3 wet days
Daylight: 12 h 06 min; 6:54 AM – 6:59 PM
Cloud cover: 78%; 10th clearest
Wind: 7 km/h; 10th windiest
Solar energy: 4.48 kWh/m²
Travel score: 2.9; out of 10

Sédhiou is town in Senegal.

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

← August Sédhiou 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 31°C through the month.

A typical September day in Sédhiou reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	32	32	32	32	32	32	32	32	32
Avg low (°C)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	31	24
11	31	24
12	31	24
13	31	24
14	31	24
15	31	24
16	31	24
17	31	24
18	31	24
19	31	24
20	31	24
21	31	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

How September really feels in Sédhiou

Once humidity and wind are folded in, September averages 30 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

13 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sédhiou weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	33° / 19°	0	0.1	11.3	4.4
Feb	35° / 20°	1	0.1	11.6	3.0
Mar	37° / 22°	0	0	11.9	1.9
Apr	38° / 23°	0	0	12.3	1.5
May	37° / 24°	2	0.5	12.6	1.7
Jun	35° / 25°	45	7.3	12.7	2.5
Jul	31° / 25°	223	22.3	12.7	3.0
Aug	30° / 24°	331	27.5	12.4	2.8
Sep	31° / 24°	238	23.3	12.1	2.9
Oct	33° / 24°	75	12.3	11.7	3.5
Nov	33° / 22°	6	1.4	11.4	4.0
Dec	33° / 19°	2	0.2	11.3	4.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to open up 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 (%)	9	11	11	12	12	13	14	15	16	17	17	18	19	20	21	21	22	22	23	24	24	26	26	27	28	28	30	31	33	34
Cloudier (%)	91	89	89	88	88	87	86	85	84	83	83	82	81	80	79	79	78	78	77	76	76	74	74	73	72	72	70	69	67	66

	Clearer (%)	Cloudier (%)
1	9	91
2	11	89
3	11	89
4	12	88
5	12	88
6	13	87
7	14	86
8	15	85
9	16	84
10	17	83
11	17	83
12	18	82
13	19	81
14	20	80
15	21	79
16	21	79
17	22	78
18	22	78
19	23	77
20	24	76
21	24	76
22	26	74
23	26	74
24	27	73
25	28	72
26	28	72
27	30	70
28	31	69
29	33	67
30	34	66

Chance of precipitation in September

Any precipitation

Sédhiou gets around 238 mm of rain over 23.3 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 77% and peaks near 87% 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 (%)	87	86	86	85	84	84	83	82	82	81	80	80	79	79	78	78	77	77	76	76	75	74	73	72	70	69	68	66	64	63

	Rain chance (%)
1	87
2	86
3	86
4	85
5	84
6	84
7	83
8	82
9	82
10	81
11	80
12	80
13	79
14	79
15	78
16	78
17	77
18	77
19	76
20	76
21	75
22	74
23	73
24	72
25	70
26	69
27	68
28	66
29	64
30	63

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 87% 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
Oppressive (%)	19	19	18	18	18	17	17	16	16	15	14	14	13	13	12	12	11	11	11	10	10	9	9	9	8	8	8	8	7	7
Miserable (%)	81	81	82	82	82	83	83	84	84	85	86	86	87	87	88	88	89	89	89	90	90	91	91	91	92	92	92	92	93	93

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	17	83
7	17	83
8	16	84
9	16	84
10	15	85
11	14	86
12	14	86
13	13	87
14	13	87
15	12	88
16	12	88
17	11	89
18	11	89
19	11	89
20	10	90
21	10	90
22	9	91
23	9	91
24	9	91
25	8	92
26	8	92
27	8	92
28	8	92
29	7	93
30	7	93

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 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)	8	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
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	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	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 6:54 AM to 6:55 AM, and sunset from 7:09 PM to 6:49 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	12.2	12.2	12.2	12.2	12.2	12.2	12.2	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	11.9	11.9	11.9	11.9	11.9
Sunrise (AM)	6:54	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:55	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:54	6:55	6:55
Sunset (PM)	7:09	7:09	7:08	7:07	7:07	7:06	7:05	7:04	7:04	7:03	7:02	7:02	7:01	7:00	6:59	6:59	6:58	6:57	6:56	6:56	6:55	6:54	6:54	6:53	6:52	6:51	6:51	6:50	6:49	6:49

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:54	7:09
2	12.2	6:55	7:09
3	12.2	6:55	7:08
4	12.2	6:55	7:07
5	12.2	6:55	7:07
6	12.2	6:55	7:06
7	12.2	6:55	7:05
8	12.2	6:55	7:04
9	12.2	6:55	7:04
10	12.1	6:55	7:03
11	12.1	6:55	7:02
12	12.1	6:55	7:02
13	12.1	6:54	7:01
14	12.1	6:54	7:00
15	12.1	6:54	6:59
16	12.1	6:54	6:59
17	12.1	6:54	6:58
18	12.0	6:54	6:57
19	12.0	6:54	6:56
20	12.0	6:54	6:56
21	12.0	6:54	6:55
22	12.0	6:54	6:54
23	12.0	6:54	6:54
24	12.0	6:54	6:53
25	12.0	6:54	6:52
26	11.9	6:54	6:51
27	11.9	6:54	6:51
28	11.9	6:54	6:50
29	11.9	6:55	6:49
30	11.9	6:55	6:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.48 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 7.14 kWh/m² in April across the year — September's 4.48 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)	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3	4.4	4.4	4.4	4.5	4.5	4.5	4.5	4.5	4.6	4.6	4.6	4.6	4.6	4.7	4.7	4.7	4.7	4.8	4.8	4.8	4.8
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	4.2	Bright
2	4.2	Bright
3	4.2	Bright
4	4.2	Bright
5	4.3	Bright
6	4.3	Bright
7	4.3	Bright
8	4.3	Bright
9	4.3	Bright
10	4.4	Bright
11	4.4	Bright
12	4.4	Bright
13	4.5	Bright
14	4.5	Bright
15	4.5	Bright
16	4.5	Bright
17	4.5	Bright
18	4.6	Bright
19	4.6	Bright
20	4.6	Bright
21	4.6	Bright
22	4.6	Bright
23	4.7	Bright
24	4.7	Bright
25	4.7	Bright
26	4.7	Bright
27	4.8	Bright
28	4.8	Bright
29	4.8	Bright
30	4.8	Bright

Planning a trip in September

Hazard calendar for Sédhiou

In seasonPeak

In September, Sédhiou sits inside its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

Sédhiou sits in the Atlantic hurricane belt; the season peaks August–October.

Sédhiou's monsoon runs July–September, when most of the year's rain falls.

Sédhiou sees seasonal dust haze (February–July), heaviest in June.

Atlantic hurricane

Monsoon

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Sédhiou?

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

2.9

Sightseeing

7th-best month of the year

4.4

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Sédhiou.

What to pack for Sédhiou in September

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

In September, Sédhiou sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. About 23 days see rain.

light clothesrain gear

UV index in Sédhiou in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sédhiou peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (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)	8	11	13	11	11	11	12	13	12	10	9	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High

	UV index (midday)	Level
Jan	8	Very high
Feb	11	Extreme
Mar	13	Extreme
Apr	11	Extreme
May	11	Extreme
Jun	11	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	12	Extreme
Oct	10	Extreme
Nov	9	Very high
Dec	7	High

Air quality in Sédhiou 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 Sédhiou is worst in February — around 108 µg/m³ PM2.5 (unhealthy), about 5.9× the cleanest month (August, 18 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)	71	108	89	61	52	52	28	18	21	39	47	61
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Poor	Poor	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	71	Unhealthy
Feb	108	Unhealthy
Mar	89	Unhealthy
Apr	61	Unhealthy
May	52	Poor
Jun	52	Poor
Jul	28	Moderate
Aug	18	Moderate
Sep	21	Moderate
Oct	39	Poor
Nov	47	Poor
Dec	61	Unhealthy

Location & terrain

Where is Sédhiou?

Sédhiou sits at 12.7°N, 15.6°W, 21 m above sea level, in Senegal. The nearest listed city is Goudomp, 37 km away.

Topography around Sédhiou

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

Within 3 km, the terrain around Sédhiou has only modest variations in elevation — a maximum elevation change of 39 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 54 m; within 80 km, only modest variations in elevation — a maximum elevation change of 70 m.

The land around Sédhiou is covered by water (37%) within 3 km, trees (43%) and shrubs (31%) within 16 km, and trees (54%) and shrubs (24%) within 80 km.

3 km

39 m

water 37%

16 km

54 m

trees 43%

80 km

70 m

trees 54%

treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves

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

September weather nearby: Goudomp 37 km · Nema Kunku 70 km · Kolda 70 km · Bignona 73 km · Ziguinchor 79 km · Soma 81 km · Reino de Antula 90 km · Santa-Luzia 91 km

Senegal travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / D / E / K; 230 V · 50 Hz
Prices: ≈ 36% of US; price level, 2025
GDP per capita: $1,955; 2025
Happiness: 4.8 / 10; World Happiness, 2025
Safe drinking water: 27%; of population, 2024
Homicide rate: 0.3; per 100k, 2015
Road deaths: 23.5; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Very low; EF EPI 442
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 Sédhiou (12.7081°, -15.5569°, elevation 21 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	31	24
11	31	24
12	31	24
13	31	24
14	31	24
15	31	24
16	31	24
17	31	24
18	31	24
19	31	24
20	31	24
21	31	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	9	91
2	11	89
3	11	89
4	12	88
5	12	88
6	13	87
7	14	86
8	15	85
9	16	84
10	17	83
11	17	83
12	18	82
13	19	81
14	20	80
15	21	79
16	21	79
17	22	78
18	22	78
19	23	77
20	24	76
21	24	76
22	26	74
23	26	74
24	27	73
25	28	72
26	28	72
27	30	70
28	31	69
29	33	67
30	34	66

	Rain chance (%)
1	87
2	86
3	86
4	85
5	84
6	84
7	83
8	82
9	82
10	81
11	80
12	80
13	79
14	79
15	78
16	78
17	77
18	77
19	76
20	76
21	75
22	74
23	73
24	72
25	70
26	69
27	68
28	66
29	64
30	63

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	17	83
7	17	83
8	16	84
9	16	84
10	15	85
11	14	86
12	14	86
13	13	87
14	13	87
15	12	88
16	12	88
17	11	89
18	11	89
19	11	89
20	10	90
21	10	90
22	9	91
23	9	91
24	9	91
25	8	92
26	8	92
27	8	92
28	8	92
29	7	93
30	7	93

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	31	24
11	31	24
12	31	24
13	31	24
14	31	24
15	31	24
16	31	24
17	31	24
18	31	24
19	31	24
20	31	24
21	31	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	9	91
2	11	89
3	11	89
4	12	88
5	12	88
6	13	87
7	14	86
8	15	85
9	16	84
10	17	83
11	17	83
12	18	82
13	19	81
14	20	80
15	21	79
16	21	79
17	22	78
18	22	78
19	23	77
20	24	76
21	24	76
22	26	74
23	26	74
24	27	73
25	28	72
26	28	72
27	30	70
28	31	69
29	33	67
30	34	66

	Rain chance (%)
1	87
2	86
3	86
4	85
5	84
6	84
7	83
8	82
9	82
10	81
11	80
12	80
13	79
14	79
15	78
16	78
17	77
18	77
19	76
20	76
21	75
22	74
23	73
24	72
25	70
26	69
27	68
28	66
29	64
30	63

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	17	83
7	17	83
8	16	84
9	16	84
10	15	85
11	14	86
12	14	86
13	13	87
14	13	87
15	12	88
16	12	88
17	11	89
18	11	89
19	11	89
20	10	90
21	10	90
22	9	91
23	9	91
24	9	91
25	8	92
26	8	92
27	8	92
28	8	92
29	7	93
30	7	93

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	31	24
11	31	24
12	31	24
13	31	24
14	31	24
15	31	24
16	31	24
17	31	24
18	31	24
19	31	24
20	31	24
21	31	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	9	91
2	11	89
3	11	89
4	12	88
5	12	88
6	13	87
7	14	86
8	15	85
9	16	84
10	17	83
11	17	83
12	18	82
13	19	81
14	20	80
15	21	79
16	21	79
17	22	78
18	22	78
19	23	77
20	24	76
21	24	76
22	26	74
23	26	74
24	27	73
25	28	72
26	28	72
27	30	70
28	31	69
29	33	67
30	34	66

	Rain chance (%)
1	87
2	86
3	86
4	85
5	84
6	84
7	83
8	82
9	82
10	81
11	80
12	80
13	79
14	79
15	78
16	78
17	77
18	77
19	76
20	76
21	75
22	74
23	73
24	72
25	70
26	69
27	68
28	66
29	64
30	63

	Oppressive (%)	Miserable (%)
1	19	81
2	19	81
3	18	82
4	18	82
5	18	82
6	17	83
7	17	83
8	16	84
9	16	84
10	15	85
11	14	86
12	14	86
13	13	87
14	13	87
15	12	88
16	12	88
17	11	89
18	11	89
19	11	89
20	10	90
21	10	90
22	9	91
23	9	91
24	9	91
25	8	92
26	8	92
27	8	92
28	8	92
29	7	93
30	7	93