Arfa Moussaïa weather in September

In September, Arfa Moussaïa sees average daytime highs of 28°C and overnight lows near 20°C, with 239 mm of rain across 26.7 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 7% 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 Arfa Moussaïa's 10th-clearest and 11th-windiest month. For the whole year in context, see Arfa Moussaïa's year-round climate.

Daytime high: 28°; 10th warmest
Overnight low: 20°; 6th coldest
Rainfall: 239 mm; 26.7 wet days
Daylight: 12 h 06 min; 6:38 AM – 6:42 PM
Cloud cover: 76%; 10th clearest
Wind: 6 km/h; 11th windiest
Solar energy: 4.96 kWh/m²
Travel score: 3.5; out of 10

← August Arfa Moussaïa 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 Arfa Moussaïa reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°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)	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	29	29	29	29	29
Avg low (°C)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20

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

How September really feels in Arfa Moussaïa

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.

Arfa Moussaïa 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	31° / 18°	5	0.5	11.4	5.6
Feb	34° / 20°	2	0.5	11.6	4.2
Mar	35° / 22°	7	1.6	11.9	2.9
Apr	35° / 24°	26	4.9	12.2	2.6
May	33° / 23°	94	16.3	12.5	3.0
Jun	30° / 21°	202	25.1	12.6	3.3
Jul	28° / 21°	262	27.4	12.6	3.6
Aug	27° / 21°	298	28.4	12.4	3.6
Sep	28° / 20°	239	26.7	12.1	3.5
Oct	30° / 20°	121	20.7	11.8	3.9
Nov	31° / 19°	16	3.2	11.5	5.3
Dec	31° / 18°	1	0.3	11.4	5.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 77%. 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 (%)	11	11	12	13	13	14	15	16	16	18	18	19	20	21	21	22	23	25	26	27	27	29	30	31	32	32	34	34	35	36
Cloudier (%)	89	89	88	87	87	86	85	84	84	82	82	81	80	79	79	78	77	75	74	73	73	71	70	69	68	68	66	66	65	64

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	12	88
4	13	87
5	13	87
6	14	86
7	15	85
8	16	84
9	16	84
10	18	82
11	18	82
12	19	81
13	20	80
14	21	79
15	21	79
16	22	78
17	23	77
18	25	75
19	26	74
20	27	73
21	27	73
22	29	71
23	30	70
24	31	69
25	32	68
26	32	68
27	34	66
28	34	66
29	35	65
30	36	64

Chance of precipitation in September

Any precipitation

Arfa Moussaïa gets around 239 mm of rain over 26.7 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 89% and peaks near 93% 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 (%)	93	93	93	93	93	92	92	92	92	91	91	91	90	90	90	89	89	88	88	87	87	86	86	85	85	84	84	83	83	82

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

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 81% 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 (%)	87	87	87	86	86	85	84	84	83	82	82	81	80	80	79	79	79	78	78	78	78	78	78	78	78	78	78	78	78	78
Oppressive (%)	13	13	13	14	14	15	16	16	17	18	18	19	20	20	21	21	21	22	22	22	22	22	22	22	22	22	22	22	22	22

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

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 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	6	6	6	6	6	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	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	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	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 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 6:39 AM to 6:37 AM, and sunset from 6:51 PM to 6:32 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	12.1	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	11.9	11.9	11.9	11.9
Sunrise (AM)	6:39	6:39	6:39	6:39	6:39	6:39	6:39	6:39	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:37	6:37	6:37	6:37	6:37	6:37
Sunset (PM)	6:51	6:51	6:50	6:50	6:49	6:48	6:48	6:47	6:46	6:46	6:45	6:44	6:44	6:43	6:42	6:42	6:41	6:40	6:40	6:39	6:38	6:37	6:37	6:36	6:35	6:35	6:34	6:34	6:33	6:32

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:39	6:51
2	12.2	6:39	6:51
3	12.2	6:39	6:50
4	12.2	6:39	6:50
5	12.2	6:39	6:49
6	12.2	6:39	6:48
7	12.1	6:39	6:48
8	12.1	6:39	6:47
9	12.1	6:38	6:46
10	12.1	6:38	6:46
11	12.1	6:38	6:45
12	12.1	6:38	6:44
13	12.1	6:38	6:44
14	12.1	6:38	6:43
15	12.1	6:38	6:42
16	12.1	6:38	6:42
17	12.0	6:38	6:41
18	12.0	6:38	6:40
19	12.0	6:38	6:40
20	12.0	6:38	6:39
21	12.0	6:38	6:38
22	12.0	6:38	6:37
23	12.0	6:38	6:37
24	12.0	6:38	6:36
25	12.0	6:37	6:35
26	12.0	6:37	6:35
27	11.9	6:37	6:34
28	11.9	6:37	6:34
29	11.9	6:37	6:33
30	11.9	6:37	6:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.96 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 6.71 kWh/m² in March across the year — September's 4.96 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)	4.5	4.5	4.6	4.6	4.6	4.7	4.7	4.7	4.8	4.8	4.8	4.9	4.9	4.9	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3
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	4.5	Bright
2	4.5	Bright
3	4.6	Bright
4	4.6	Bright
5	4.6	Bright
6	4.7	Bright
7	4.7	Bright
8	4.7	Bright
9	4.8	Bright
10	4.8	Bright
11	4.8	Bright
12	4.9	Bright
13	4.9	Bright
14	4.9	Bright
15	5.0	Bright
16	5.0	Bright
17	5.0	Bright
18	5.0	Bright
19	5.1	Bright
20	5.1	Bright
21	5.1	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.3	Bright
27	5.3	Bright
28	5.3	Bright
29	5.3	Bright
30	5.3	Bright

Planning a trip in September

Hazard calendar for Arfa Moussaïa

In seasonPeak

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

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

Arfa Moussaïa sees seasonal dust haze (March–June), heaviest in April.

Monsoon

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Arfa Moussaïa?

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

3.5

Sightseeing

8th-best month of the year

4.1

Beach & pool

10th-best month of the year

September is a weaker month for outdoor sightseeing in Arfa Moussaïa.

What to pack for Arfa Moussaïa in September

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

In September, Arfa Moussaïa sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Arfa Moussaïa 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 Arfa Moussaïa peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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	14	12	12	12	12	13	13	12	9	7
Level	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	10	Very high
Feb	12	Extreme
Mar	14	Extreme
Apr	12	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	12	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	9	Very high
Dec	7	Very high

Air quality in Arfa Moussaïa 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 Arfa Moussaïa is worst in April — around 101 µg/m³ PM2.5 (unhealthy), about 9.5× the cleanest month (August, 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)	54	60	72	101	32	23	14	11	14	24	28	44
Level	Poor	Unhealthy	Unhealthy	Unhealthy	Moderate	Moderate	Moderate	Good	Moderate	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	54	Poor
Feb	60	Unhealthy
Mar	72	Unhealthy
Apr	101	Unhealthy
May	32	Moderate
Jun	23	Moderate
Jul	14	Moderate
Aug	11	Good
Sep	14	Moderate
Oct	24	Moderate
Nov	28	Moderate
Dec	44	Poor

Location & terrain

Where is Arfa Moussaïa?

Arfa Moussaïa sits at 10.8°N, 11.4°W, 668 m above sea level, in Guinea. The nearest listed city is Dabola, 28 km away.

Topography around Arfa Moussaïa

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

Within 3 km, the terrain around Arfa Moussaïa has only modest variations in elevation — a maximum elevation change of 233 m around an average of 670 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 552 m; within 80 km, large variations in elevation — a maximum elevation change of 830 m.

The land around Arfa Moussaïa is covered by grassland (68%) and trees (22%) within 3 km, grassland (50%) and trees (34%) within 16 km, and trees (47%) and grassland (34%) within 80 km.

3 km

233 m

grassland 68%

16 km

552 m

grassland 50%

80 km

830 m

trees 47%

treesshrubsgrasslandcroplandartificial surfaces

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

September weather nearby: Dabola 28 km · Dogomet 29 km · Bissikrima 48 km · Banko 71 km · Tougué 82 km · Mamou 90 km · Dinguiraye 92 km · Faranah 106 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 Arfa Moussaïa (10.7667°, -11.3667°, elevation 668 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	28	20
2	28	20
3	28	20
4	28	20
5	28	20
6	28	20
7	28	20
8	28	20
9	28	20
10	28	20
11	28	20
12	28	20
13	28	20
14	28	20
15	28	20
16	28	20
17	29	20
18	29	20
19	29	20
20	29	20
21	29	20
22	29	20
23	29	20
24	29	20
25	29	20
26	29	20
27	29	20
28	29	20
29	29	20
30	29	20

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	12	88
4	13	87
5	13	87
6	14	86
7	15	85
8	16	84
9	16	84
10	18	82
11	18	82
12	19	81
13	20	80
14	21	79
15	21	79
16	22	78
17	23	77
18	25	75
19	26	74
20	27	73
21	27	73
22	29	71
23	30	70
24	31	69
25	32	68
26	32	68
27	34	66
28	34	66
29	35	65
30	36	64

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

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

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

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	12	88
4	13	87
5	13	87
6	14	86
7	15	85
8	16	84
9	16	84
10	18	82
11	18	82
12	19	81
13	20	80
14	21	79
15	21	79
16	22	78
17	23	77
18	25	75
19	26	74
20	27	73
21	27	73
22	29	71
23	30	70
24	31	69
25	32	68
26	32	68
27	34	66
28	34	66
29	35	65
30	36	64

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

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

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

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	12	88
4	13	87
5	13	87
6	14	86
7	15	85
8	16	84
9	16	84
10	18	82
11	18	82
12	19	81
13	20	80
14	21	79
15	21	79
16	22	78
17	23	77
18	25	75
19	26	74
20	27	73
21	27	73
22	29	71
23	30	70
24	31	69
25	32	68
26	32	68
27	34	66
28	34	66
29	35	65
30	36	64

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

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