Arfa Moussaïa weather in May

In May, Arfa Moussaïa sees average daytime highs of 33°C and overnight lows near 23°C, with 94 mm of rain across 16.3 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 31°C by the end. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Arfa Moussaïa's 7th-clearest and 4th-windiest month. For the whole year in context, see Arfa Moussaïa's year-round climate.

Daytime high
33°
4th warmest
Overnight low
23°
11th coldest
Rainfall
94 mm
16.3 wet days
Daylight
12 h 30 min
6:27 AM – 6:56 PM
Cloud cover
66%
7th clearest
Wind
8 km/h
4th windiest
Solar energy
6.1 kWh/m²
Travel score
3.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 31°C by the end.

A typical May day in Arfa Moussaïa reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13524
23524
33424
43423
53423
63423
73423
83423
93423
103423
113323
123323
133323
143323
153323
163323
173323
183323
193223
203223
213222
223222
233222
243222
253222
263222
273222
283122
293122
303122
313122

How May really feels in Arfa Moussaïa

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Arfa Moussaïa weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 18°50.511.45.6
Feb34° / 20°20.511.64.2
Mar35° / 22°71.611.92.9
Apr35° / 24°264.912.22.6
May33° / 23°9416.312.53.0
Jun30° / 21°20225.112.63.3
Jul28° / 21°26227.412.63.6
Aug27° / 21°29828.412.43.6
Sep28° / 20°23926.712.13.5
Oct30° / 20°12120.711.83.9
Nov31° / 19°163.211.55.3
Dec31° / 18°10.311.45.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
44951
54951
64852
74753
84753
94654
104555
114456
124357
134357
144159
154060
163961
173961
183961
193763
203763
213763
223763
233763
243664
253664
263565
273565
283565
293565
303565
313466

Chance of precipitation in May

Any precipitation

Arfa Moussaïa gets around 94 mm of rain over 16.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
129
230
332
433
535
637
739
841
943
1045
1147
1250
1352
1454
1556
1657
1759
1860
1961
2062
2163
2264
2364
2465
2566
2666
2767
2868
2969
3070
3171

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1314224317
2313214418
3312204619
4311194721
5310184822
629164923
728155025
827145126
926135227
1025125229
1115115330
1214105332
131395433
141385335
150275536
160265537
170165538
180155539
190155440
200145441
210045541
220045442
230045343
240045244
250035344
260035344
270035245
280035245
290035245
300035245
310035245

Wind in May

Winds average 8 km/h in May.

Across May, 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 6:31 AM to 6:25 AM, and sunset from 6:54 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:316:54
212.46:316:54
312.46:316:54
412.46:306:54
512.46:306:54
612.46:306:55
712.46:296:55
812.46:296:55
912.46:296:55
1012.46:286:55
1112.56:286:55
1212.56:286:56
1312.56:286:56
1412.56:276:56
1512.56:276:56
1612.56:276:56
1712.56:276:57
1812.56:276:57
1912.56:266:57
2012.56:266:57
2112.56:266:58
2212.56:266:58
2312.56:266:58
2412.56:266:58
2512.56:266:59
2612.66:266:59
2712.66:266:59
2812.66:266:59
2912.66:267:00
3012.66:257:00
3112.66:257:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.1 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 — May's 6.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.8Bright
315.8Bright
Planning a trip in May

Hazard calendar for Arfa Moussaïa

In seasonPeak

In May, Arfa Moussaïa sits inside its dust 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 May a good time to visit Arfa Moussaïa?

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

3.0
Sightseeing
10th-best month of the year
5.2
Beach & pool
8th-best month of the year

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

What to pack for Arfa Moussaïa in May

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

In May, Arfa Moussaïa sees daytime highs around 33°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Arfa Moussaïa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 17UV 14Dec 16UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar14Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec7Very high

Air quality in Arfa Moussaïa in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModerateGoodModeratePoorApr 1396 µg/m³Aug 1611 µg/m³
PM2.5 (µg/m³)Level
Jan54Poor
Feb60Unhealthy
Mar72Unhealthy
Apr101Unhealthy
May32Moderate
Jun23Moderate
Jul14Moderate
Aug11Good
Sep14Moderate
Oct24Moderate
Nov28Moderate
Dec44Poor
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.

BissikrimaBankoTouguéMamouDinguirayeFaranah

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
16 km
552 m
80 km
830 m
treesshrubsgrasslandcroplandartificial surfaces
May 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
Muslim 85%Christian 13%none 1%animist 0%

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).