Forécariah weather in September

In September, Forécariah sees average daytime highs of 28°C and overnight lows near 22°C, with 543 mm of rain across 29.8 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels oppressive.

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 Forécariah's 10th-clearest and 9th-windiest month. For the whole year in context, see Forécariah's year-round climate.

Daytime high: 28°; 10th warmest
Overnight low: 22°; 7th coldest
Rainfall: 543 mm; 29.8 wet days
Daylight: 12 h 06 min; 6:45 AM – 6:48 PM
Cloud cover: 87%; 10th clearest
Wind: 5 km/h; 9th windiest
Solar energy: 4.07 kWh/m²
Travel score: 3.0; out of 10

Forécariah is sub-prefecture and town located in western Guinea.

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

← August Forécariah 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 28°C through the month.

A typical September day in Forécariah reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°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	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	29	29	29	29	29	29	29	29	29
Avg low (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22

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

How September really feels in Forécariah

Once humidity and wind are folded in, September averages 2 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

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

Forécariah weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	33° / 20°	7	1.7	11.5	4.6
Feb	34° / 21°	4	0.8	11.7	3.8
Mar	34° / 22°	11	2.9	11.9	3.4
Apr	34° / 23°	36	7.2	12.2	3.3
May	31° / 23°	209	22.4	12.4	3.0
Jun	29° / 23°	414	29.4	12.5	2.9
Jul	27° / 22°	648	30.7	12.5	3.2
Aug	27° / 22°	712	30.8	12.3	3.2
Sep	28° / 22°	543	29.8	12.1	3.0
Oct	29° / 22°	286	29.3	11.8	2.9
Nov	30° / 22°	100	17	11.6	4.2
Dec	31° / 21°	15	3.4	11.5	5.3

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 4% of September, with mostly cloudy or overcast conditions the remaining 96%.

	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 (%)	1	1	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	4	4	5	5	6	6	7	7	8	8	9	9	10
Cloudier (%)	99	99	98	98	98	98	98	98	98	98	98	98	97	97	97	97	97	96	96	95	95	94	94	93	93	92	92	91	91	90

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	4	96
19	4	96
20	5	95
21	5	95
22	6	94
23	6	94
24	7	93
25	7	93
26	8	92
27	8	92
28	9	91
29	9	91
30	10	90

Chance of precipitation in September

Any precipitation

Forécariah gets around 543 mm of rain over 29.8 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 99% and peaks near 100% 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 (%)	100	100	99	99	99	99	99	99	99	99	99	99	99	99	99	100	100	100	100	100	100	99	99	99	99	99	99	98	98	98

	Rain chance (%)
1	100
2	100
3	99
4	99
5	99
6	99
7	99
8	99
9	99
10	99
11	99
12	99
13	99
14	99
15	99
16	100
17	100
18	100
19	100
20	100
21	100
22	99
23	99
24	99
25	99
26	99
27	99
28	98
29	98
30	98

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Oppressive (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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 5 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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	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 6:47 AM to 6:44 AM, and sunset from 6:58 PM to 6:39 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	12.1	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	11.9	11.9	11.9
Sunrise (AM)	6:47	6:47	6:46	6:46	6:46	6:46	6:46	6:46	6:46	6:46	6:46	6:46	6:45	6:45	6:45	6:45	6:45	6:45	6:45	6:45	6:45	6:45	6:44	6:44	6:44	6:44	6:44	6:44	6:44	6:44
Sunset (PM)	6:58	6:57	6:56	6:56	6:55	6:55	6:54	6:53	6:53	6:52	6:51	6:51	6:50	6:49	6:49	6:48	6:48	6:47	6:46	6:46	6:45	6:44	6:44	6:43	6:43	6:42	6:41	6:41	6:40	6:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:47	6:58
2	12.2	6:47	6:57
3	12.2	6:46	6:56
4	12.2	6:46	6:56
5	12.1	6:46	6:55
6	12.1	6:46	6:55
7	12.1	6:46	6:54
8	12.1	6:46	6:53
9	12.1	6:46	6:53
10	12.1	6:46	6:52
11	12.1	6:46	6:51
12	12.1	6:46	6:51
13	12.1	6:45	6:50
14	12.1	6:45	6:49
15	12.1	6:45	6:49
16	12.1	6:45	6:48
17	12.0	6:45	6:48
18	12.0	6:45	6:47
19	12.0	6:45	6:46
20	12.0	6:45	6:46
21	12.0	6:45	6:45
22	12.0	6:45	6:44
23	12.0	6:44	6:44
24	12.0	6:44	6:43
25	12.0	6:44	6:43
26	12.0	6:44	6:42
27	12.0	6:44	6:41
28	11.9	6:44	6:41
29	11.9	6:44	6:40
30	11.9	6:44	6:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.07 kWh/m².

For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 6.47 kWh/m² in March across the year — September's 4.07 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)	3.7	3.7	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	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	4.3	4.3	4.4
Level	Moderate	Moderate	Moderate	Moderate	Moderate	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

	Solar energy (kWh/m²)	Level
1	3.7	Moderate
2	3.7	Moderate
3	3.8	Moderate
4	3.8	Moderate
5	3.8	Moderate
6	3.8	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	4.0	Moderate
12	4.0	Moderate
13	4.0	Bright
14	4.0	Bright
15	4.1	Bright
16	4.1	Bright
17	4.1	Bright
18	4.2	Bright
19	4.2	Bright
20	4.2	Bright
21	4.2	Bright
22	4.2	Bright
23	4.3	Bright
24	4.3	Bright
25	4.3	Bright
26	4.3	Bright
27	4.3	Bright
28	4.3	Bright
29	4.3	Bright
30	4.4	Bright

Planning a trip in September

Hazard calendar for Forécariah

In seasonPeak

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

Forécariah's monsoon runs June–September, when most of the year's rain falls.

Forécariah sees seasonal dust haze (February–June), heaviest in March.

Monsoon

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Forécariah?

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

3.0

Sightseeing

9th-best month of the year

3.5

Beach & pool

10th-best month of the year

September is a weaker month for outdoor sightseeing in Forécariah.

What to pack for Forécariah in September

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

In September, Forécariah sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 30 days see rain.

light clothesrain gear

Sea temperature near Forécariah in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 km away) is warmest in November at about 29°C and coldest in August near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	28	27	27	28	28	28	28	27	28	28	29	29
Comfort	Warm	Warm	Warm	Warm	Tropical	Tropical	Warm	Warm	Warm	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	28	Warm
Feb	27	Warm
Mar	27	Warm
Apr	28	Warm
May	28	Tropical
Jun	28	Tropical
Jul	28	Warm
Aug	27	Warm
Sep	28	Warm
Oct	28	Tropical
Nov	29	Tropical
Dec	29	Tropical

UV index in Forécariah 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 Forécariah peaks around March 15 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)	9	12	13	11	12	12	12	13	13	11	8	8
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

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

Air quality in Forécariah 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 Forécariah is worst in April — around 253 µg/m³ PM2.5 (very unhealthy), about 15.0× the cleanest month (August, 17 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)	114	110	89	253	64	29	18	17	21	31	45	83
Level	Unhealthy	Unhealthy	Unhealthy	Very unhealthy	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	114	Unhealthy
Feb	110	Unhealthy
Mar	89	Unhealthy
Apr	253	Very unhealthy
May	64	Unhealthy
Jun	29	Moderate
Jul	18	Moderate
Aug	17	Moderate
Sep	21	Moderate
Oct	31	Moderate
Nov	45	Poor
Dec	83	Unhealthy

Location & terrain

Where is Forécariah?

Forécariah sits at 9.4°N, 13.1°W, 32 m above sea level, in Guinea. The nearest listed city is Coyah, 45 km away.

Topography around Forécariah

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

Within 3 km, the terrain around Forécariah has only modest variations in elevation — a maximum elevation change of 59 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 197 m; within 80 km, large variations in elevation — a maximum elevation change of 1,189 m.

The land around Forécariah is covered by trees (44%) and grassland (29%) within 3 km, trees (54%) and grassland (24%) within 16 km, and trees (38%), grassland (21%) and water (20%) within 80 km.

3 km

59 m

trees 44%

16 km

197 m

trees 54%

80 km

1,189 m

trees 38%

treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves

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

September weather nearby: Coyah 45 km · Manéah 49 km · Dubréka 62 km · Dixinn 66 km · Conakry 66 km · Camayenne 67 km · Kindia 74 km · Port Loko 81 km

Guinea travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F / K; 220 V · 50 Hz
Prices: ≈ 34% of US; price level, 2025
GDP per capita: $1,877; 2025
Happiness: 4.6 / 10; World Happiness, 2025
Road deaths: 29.7; per 100k/yr, 2019
Income group: Lower middle; 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 Forécariah (9.4306°, -13.0881°, elevation 32 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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	22
2	27	22
3	27	22
4	28	22
5	28	22
6	28	22
7	28	22
8	28	22
9	28	22
10	28	22
11	28	22
12	28	22
13	28	22
14	28	22
15	28	22
16	28	22
17	28	22
18	28	22
19	28	22
20	28	22
21	28	22
22	29	22
23	29	22
24	29	22
25	29	22
26	29	22
27	29	22
28	29	22
29	29	22
30	29	22

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	4	96
19	4	96
20	5	95
21	5	95
22	6	94
23	6	94
24	7	93
25	7	93
26	8	92
27	8	92
28	9	91
29	9	91
30	10	90

	Rain chance (%)
1	100
2	100
3	99
4	99
5	99
6	99
7	99
8	99
9	99
10	99
11	99
12	99
13	99
14	99
15	99
16	100
17	100
18	100
19	100
20	100
21	100
22	99
23	99
24	99
25	99
26	99
27	99
28	98
29	98
30	98

	Oppressive (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	4	96
19	4	96
20	5	95
21	5	95
22	6	94
23	6	94
24	7	93
25	7	93
26	8	92
27	8	92
28	9	91
29	9	91
30	10	90

	Rain chance (%)
1	100
2	100
3	99
4	99
5	99
6	99
7	99
8	99
9	99
10	99
11	99
12	99
13	99
14	99
15	99
16	100
17	100
18	100
19	100
20	100
21	100
22	99
23	99
24	99
25	99
26	99
27	99
28	98
29	98
30	98

	Oppressive (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	3	97
14	3	97
15	3	97
16	3	97
17	3	97
18	4	96
19	4	96
20	5	95
21	5	95
22	6	94
23	6	94
24	7	93
25	7	93
26	8	92
27	8	92
28	9	91
29	9	91
30	10	90

	Rain chance (%)
1	100
2	100
3	99
4	99
5	99
6	99
7	99
8	99
9	99
10	99
11	99
12	99
13	99
14	99
15	99
16	100
17	100
18	100
19	100
20	100
21	100
22	99
23	99
24	99
25	99
26	99
27	99
28	98
29	98
30	98

	Oppressive (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100