Bignona weather in September

In September, Bignona sees average daytime highs of 31°C and overnight lows near 24°C, with 301 mm of rain across 24.9 wet days and about 12.1 hours of daylight. It is the 10th-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 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Bignona's 11th-clearest and 11th-windiest month. For the whole year in context, see Bignona's year-round climate.

Daytime high: 31°; 10th warmest
Overnight low: 24°; 8th coldest
Rainfall: 301 mm; 24.9 wet days
Daylight: 12 h 06 min; 6:57 AM – 7:01 PM
Cloud cover: 80%; 11th clearest
Wind: 7 km/h; 11th windiest
Solar energy: 4.56 kWh/m²
Travel score: 2.7; out of 10

Bignona is city in Senegal.

Density: 1,697/km²; people per km²

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

← August Bignona 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 Bignona 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 2°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	32	32	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	32	24
21	32	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 Bignona

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

11 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.

Bignona weather by month

How September compares with the rest of the year at a glance. September is the 10th-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	34° / 19°	1	0.1	11.3	4.1
Feb	36° / 20°	1	0.1	11.6	2.9
Mar	37° / 21°	0	0	11.9	1.8
Apr	38° / 22°	0	0	12.3	1.5
May	37° / 23°	2	0.3	12.6	2.0
Jun	35° / 25°	45	6.3	12.7	2.8
Jul	31° / 25°	256	22.6	12.7	3.0
Aug	30° / 24°	369	27.4	12.4	2.7
Sep	31° / 24°	301	24.9	12.1	2.7
Oct	33° / 24°	113	16.8	11.7	3.0
Nov	34° / 22°	11	2	11.4	3.4
Dec	34° / 20°	2	0.3	11.3	4.0

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 13% of September, with mostly cloudy or overcast conditions the remaining 83%. 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 (%)	8	8	8	9	9	10	11	11	12	13	13	14	14	15	15	15	16	17	17	17	18	20	21	22	24	25	27	29	31	32
Cloudier (%)	92	92	92	91	91	90	89	89	88	87	87	86	86	85	85	85	84	83	83	83	82	80	79	78	76	75	73	71	69	68

	Clearer (%)	Cloudier (%)
1	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	10	90
7	11	89
8	11	89
9	12	88
10	13	87
11	13	87
12	14	86
13	14	86
14	15	85
15	15	85
16	15	85
17	16	84
18	17	83
19	17	83
20	17	83
21	18	82
22	20	80
23	21	79
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	31	69
30	32	68

Chance of precipitation in September

Any precipitation

Bignona gets around 301 mm of rain over 24.9 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 82% and peaks near 89% 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 (%)	89	89	89	89	88	88	87	87	87	86	86	85	85	84	84	83	83	82	81	81	80	79	78	77	77	76	75	74	73	72

	Rain chance (%)
1	89
2	89
3	89
4	89
5	88
6	88
7	87
8	87
9	87
10	86
11	86
12	85
13	85
14	84
15	84
16	83
17	83
18	82
19	81
20	81
21	80
22	79
23	78
24	77
25	77
26	76
27	75
28	74
29	73
30	72

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 82% 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 (%)	24	24	24	24	24	24	23	23	22	21	21	20	20	19	18	18	17	16	16	15	14	14	13	13	12	11	11	11	10	10
Miserable (%)	76	76	76	76	76	76	77	77	78	79	79	80	80	81	82	82	83	84	84	85	86	86	87	87	88	89	89	89	90	90

	Oppressive (%)	Miserable (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	24	76
6	24	76
7	23	77
8	23	77
9	22	78
10	21	79
11	21	79
12	20	80
13	20	80
14	19	81
15	18	82
16	18	82
17	17	83
18	16	84
19	16	84
20	15	85
21	14	86
22	14	86
23	13	87
24	13	87
25	12	88
26	11	89
27	11	89
28	11	89
29	10	90
30	10	90

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 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	7	7	7	7	7	7	7	7	7	7	7	7	7	7	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	8	calm
2	8	calm
3	7	calm
4	7	calm
5	7	calm
6	7	calm
7	7	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	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 18 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 24 minutes over September. Sunrise moves from 6:57 AM to 6:57 AM, and sunset from 7:12 PM to 6:51 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)	12.3	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)	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57	6:57
Sunset (PM)	7:12	7:11	7:11	7:10	7:09	7:09	7:08	7:07	7:06	7:06	7:05	7:04	7:04	7:03	7:02	7:01	7:01	7:00	6:59	6:58	6:58	6:57	6:56	6:55	6:55	6:54	6:53	6:53	6:52	6:51

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:57	7:12
2	12.2	6:57	7:11
3	12.2	6:57	7:11
4	12.2	6:57	7:10
5	12.2	6:57	7:09
6	12.2	6:57	7:09
7	12.2	6:57	7:08
8	12.2	6:57	7:07
9	12.2	6:57	7:06
10	12.1	6:57	7:06
11	12.1	6:57	7:05
12	12.1	6:57	7:04
13	12.1	6:57	7:04
14	12.1	6:57	7:03
15	12.1	6:57	7:02
16	12.1	6:57	7:01
17	12.1	6:57	7:01
18	12.0	6:57	7:00
19	12.0	6:57	6:59
20	12.0	6:57	6:58
21	12.0	6:57	6:58
22	12.0	6:57	6:57
23	12.0	6:57	6:56
24	12.0	6:57	6:55
25	12.0	6:57	6:55
26	11.9	6:57	6:54
27	11.9	6:57	6:53
28	11.9	6:57	6:53
29	11.9	6:57	6:52
30	11.9	6:57	6:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.56 kWh/m².

For context, solar energy here swings from a low near 4.27 kWh/m² to a high of 7.17 kWh/m² in April across the year — September's 4.56 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	4.3	4.3	4.3	4.3	4.3	4.4	4.4	4.4	4.4	4.5	4.5	4.5	4.5	4.6	4.6	4.6	4.7	4.7	4.7	4.7	4.8	4.8	4.8	4.8	4.9	4.9	4.9	4.9	5.0
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	Bright

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.3	Bright
3	4.3	Bright
4	4.3	Bright
5	4.3	Bright
6	4.3	Bright
7	4.4	Bright
8	4.4	Bright
9	4.4	Bright
10	4.4	Bright
11	4.5	Bright
12	4.5	Bright
13	4.5	Bright
14	4.5	Bright
15	4.6	Bright
16	4.6	Bright
17	4.6	Bright
18	4.7	Bright
19	4.7	Bright
20	4.7	Bright
21	4.7	Bright
22	4.8	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.9	Bright
27	4.9	Bright
28	4.9	Bright
29	4.9	Bright
30	5.0	Bright

Planning a trip in September

Hazard calendar for Bignona

In seasonPeak

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

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

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

Bignona 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 Bignona?

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

2.7

Sightseeing

8th-best month of the year

4.1

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Bignona.

What to pack for Bignona in September

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

In September, Bignona sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Bignona 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 Bignona peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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	Very 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	Very high

Air quality in Bignona 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 Bignona is worst in February — around 100 µg/m³ PM2.5 (unhealthy), about 5.2× the cleanest month (August, 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)	81	100	84	57	49	55	31	19	23	42	56	74
Level	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Poor	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	81	Unhealthy
Feb	100	Unhealthy
Mar	84	Unhealthy
Apr	57	Unhealthy
May	49	Poor
Jun	55	Poor
Jul	31	Moderate
Aug	19	Moderate
Sep	23	Moderate
Oct	42	Poor
Nov	56	Unhealthy
Dec	74	Unhealthy

Location & terrain

Where is Bignona?

Bignona sits at 12.8°N, 16.2°W, 30 m above sea level, in Senegal. The nearest listed city is Ziguinchor, 27 km away.

Topography around Bignona

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

Within 3 km, the terrain around Bignona has only modest variations in elevation — a maximum elevation change of 38 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 51 m; within 80 km, only modest variations in elevation — a maximum elevation change of 57 m.

The land around Bignona is covered by trees (23%), shrubs (22%) and artificial surfaces (20%) within 3 km, trees (55%) and shrubs (32%) within 16 km, and trees (32%) and shrubs (20%) within 80 km.

3 km

38 m

trees 23%

16 km

51 m

trees 55%

80 km

57 m

trees 32%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves

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

September weather nearby: Ziguinchor 27 km · Goudomp 46 km · Nema Kunku 61 km · Lamin 64 km · Brikama 69 km · Gunjur 70 km · Sédhiou 73 km · Sanyang 77 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 Bignona (12.8103°, -16.2264°, elevation 30 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	32	24
21	32	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	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	10	90
7	11	89
8	11	89
9	12	88
10	13	87
11	13	87
12	14	86
13	14	86
14	15	85
15	15	85
16	15	85
17	16	84
18	17	83
19	17	83
20	17	83
21	18	82
22	20	80
23	21	79
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	31	69
30	32	68

	Rain chance (%)
1	89
2	89
3	89
4	89
5	88
6	88
7	87
8	87
9	87
10	86
11	86
12	85
13	85
14	84
15	84
16	83
17	83
18	82
19	81
20	81
21	80
22	79
23	78
24	77
25	77
26	76
27	75
28	74
29	73
30	72

	Oppressive (%)	Miserable (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	24	76
6	24	76
7	23	77
8	23	77
9	22	78
10	21	79
11	21	79
12	20	80
13	20	80
14	19	81
15	18	82
16	18	82
17	17	83
18	16	84
19	16	84
20	15	85
21	14	86
22	14	86
23	13	87
24	13	87
25	12	88
26	11	89
27	11	89
28	11	89
29	10	90
30	10	90

	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	32	24
21	32	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	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	10	90
7	11	89
8	11	89
9	12	88
10	13	87
11	13	87
12	14	86
13	14	86
14	15	85
15	15	85
16	15	85
17	16	84
18	17	83
19	17	83
20	17	83
21	18	82
22	20	80
23	21	79
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	31	69
30	32	68

	Rain chance (%)
1	89
2	89
3	89
4	89
5	88
6	88
7	87
8	87
9	87
10	86
11	86
12	85
13	85
14	84
15	84
16	83
17	83
18	82
19	81
20	81
21	80
22	79
23	78
24	77
25	77
26	76
27	75
28	74
29	73
30	72

	Oppressive (%)	Miserable (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	24	76
6	24	76
7	23	77
8	23	77
9	22	78
10	21	79
11	21	79
12	20	80
13	20	80
14	19	81
15	18	82
16	18	82
17	17	83
18	16	84
19	16	84
20	15	85
21	14	86
22	14	86
23	13	87
24	13	87
25	12	88
26	11	89
27	11	89
28	11	89
29	10	90
30	10	90

	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	32	24
21	32	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	8	92
2	8	92
3	8	92
4	9	91
5	9	91
6	10	90
7	11	89
8	11	89
9	12	88
10	13	87
11	13	87
12	14	86
13	14	86
14	15	85
15	15	85
16	15	85
17	16	84
18	17	83
19	17	83
20	17	83
21	18	82
22	20	80
23	21	79
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	31	69
30	32	68

	Rain chance (%)
1	89
2	89
3	89
4	89
5	88
6	88
7	87
8	87
9	87
10	86
11	86
12	85
13	85
14	84
15	84
16	83
17	83
18	82
19	81
20	81
21	80
22	79
23	78
24	77
25	77
26	76
27	75
28	74
29	73
30	72

	Oppressive (%)	Miserable (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	24	76
6	24	76
7	23	77
8	23	77
9	22	78
10	21	79
11	21	79
12	20	80
13	20	80
14	19	81
15	18	82
16	18	82
17	17	83
18	16	84
19	16	84
20	15	85
21	14	86
22	14	86
23	13	87
24	13	87
25	12	88
26	11	89
27	11	89
28	11	89
29	10	90
30	10	90