Coyah weather in May

In May, Coyah sees average daytime highs of 31°C and overnight lows near 25°C, with 86 mm of rain across 14.1 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 12% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 30 min by month's end. Set against the rest of the year, May is Coyah's 7th-clearest and 5th-windiest month. For the whole year in context, see Coyah's year-round climate.

Daytime high
31°
5th warmest
Overnight low
25°
12th coldest
Rainfall
86 mm
14.1 wet days
Daylight
12 h 24 min
6:36 AM – 7:03 PM
Cloud cover
72%
7th clearest
Wind
7 km/h
5th windiest
Solar energy
5.24 kWh/m²
Travel score
3.8
out of 10

Coyah is human settlement.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 30°C by the end.

A typical May day in Coyah reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13225
23225
33225
43225
53225
63225
73225
83225
93225
103225
113225
123225
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253025
263025
273025
283025
293025
303025
313025

How May really feels in Coyah

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.

Coyah weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°30.811.55.2
Feb33° / 22°10.311.74.8
Mar33° / 23°10.311.94.6
Apr33° / 24°71.412.24.5
May31° / 25°8614.112.43.8
Jun29° / 24°30128.212.63.0
Jul28° / 23°62330.612.53.2
Aug28° / 23°74130.712.33.2
Sep29° / 23°46529.212.13.0
Oct30° / 23°21428.211.82.9
Nov30° / 23°8316.711.64.2
Dec31° / 22°112.611.45.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24654
34456
44456
54258
64159
73961
83961
93763
103664
113466
123367
133268
143070
152872
162773
172674
182575
192476
202377
212080
221981
231882
241684
251585
261486
271387
281189
291189
301189
311189

Chance of precipitation in May

Any precipitation

Coyah gets around 86 mm of rain over 14.1 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 46% and peaks near 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
115
217
318
419
521
623
724
826
928
1031
1133
1235
1338
1440
1543
1645
1748
1850
1953
2055
2158
2260
2362
2465
2567
2669
2771
2873
2975
3077
3179

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
1186418
2176419
3166321
4156223
5146125
6136027
7125929
8125731
9115732
10105634
11105436
1295437
1385339
1485240
1575241
1675142
1765143
1855144
1955045
2044946
2144947
2234848
2334849
2434849
2524850
2624850
2724850
2824950
2914950
3014950
3115049

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 18 min at the start of May to 12 h 30 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 6:41 AM to 6:35 AM, and sunset from 7:01 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:417:01
212.36:407:01
312.46:407:01
412.46:407:01
512.46:397:01
612.46:397:01
712.46:397:02
812.46:387:02
912.46:387:02
1012.46:387:02
1112.46:387:02
1212.46:377:02
1312.46:377:03
1412.46:377:03
1512.46:377:03
1612.46:367:03
1712.46:367:03
1812.56:367:03
1912.56:367:04
2012.56:367:04
2112.56:367:04
2212.56:367:04
2312.56:367:05
2412.56:367:05
2512.56:357:05
2612.56:357:05
2712.56:357:06
2812.56:357:06
2912.56:357:06
3012.56:357:06
3112.56:357:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.24 kWh/m².

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 6.51 kWh/m² in March across the year — May's 5.24 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in May

Hazard calendar for Coyah

In seasonPeak

In May, Coyah sits inside its dust season. The full year is below, with each hazard's peak months called out.

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

Coyah sees seasonal dust haze (February–May), heaviest in February.

Monsoon
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Coyah?

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

3.8
Sightseeing
7th-best month of the year
5.8
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Coyah.

What to pack for Coyah in May

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

In May, Coyah sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Coyah in May

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

The sea at the nearest coast (about 28 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.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec29Tropical

UV index in Coyah 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 Coyah 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 15UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Coyah 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 Coyah is worst in April — around 95 µg/m³ PM2.5 (unhealthy), about 5.5× the cleanest month (August, 17 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModeratePoorUnhealthyApr 1592 µg/m³Aug 1317 µg/m³
PM2.5 (µg/m³)Level
Jan79Unhealthy
Feb89Unhealthy
Mar74Unhealthy
Apr95Unhealthy
May67Unhealthy
Jun30Moderate
Jul19Moderate
Aug17Moderate
Sep21Moderate
Oct33Moderate
Nov46Poor
Dec74Unhealthy
Location & terrain

Where is Coyah?

Coyah sits at 9.7°N, 13.4°W, 13 m above sea level, in Guinea. The nearest listed city is Manéah, 5.0 km away.

KindiaFria

Topography around Coyah

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

Within 3 km, the terrain around Coyah has significant variations in elevation — a maximum elevation change of 532 m around an average of 79 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 996 m; within 80 km, large variations in elevation — a maximum elevation change of 1,191 m.

The land around Coyah is covered by trees (43%) and artificial surfaces (32%) within 3 km, trees (39%) and grassland (27%) within 16 km, and trees (33%) and water (27%) within 80 km.

3 km
532 m
16 km
996 m
80 km
1,191 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
May weather nearby: Manéah 5.0 km · Dubréka 18 km · Dixinn 36 km · Conakry 37 km · Camayenne 38 km · Forécariah 45 km · Kindia 69 km · Fria 77 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 Coyah (9.7064°, -13.3847°, elevation 13 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).