Kayes weather in May

In May, Kayes sees average daytime highs of 42°C and overnight lows near 30°C, with 5 mm of rain across 1.3 wet days and about 12.7 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 42°C through the month. The sky is clear or mostly clear about 59% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Kayes's 4th-clearest and 7th-windiest month. For the whole year in context, see Kayes's year-round climate.

Daytime high
42°
1st warmest
Overnight low
30°
12th coldest
Rainfall
5 mm
1.3 wet days
Daylight
12 h 42 min
6:22 AM – 7:02 PM
Cloud cover
38%
4th clearest
Wind
10 km/h
7th windiest
Solar energy
7.18 kWh/m²
Travel score
0.0
out of 10

Kayes is city in Mali.

Founded
1880

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 42°C through the month.

A typical May day in Kayes reaches about 42°C in the afternoon and slips back to 30°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 39°C and 44°C. Set against its neighbours, May runs on par with April and about 3°C warmer than June.

25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
14229
24229
34229
44230
54230
64230
74230
84230
94230
104230
114230
124230
134230
144230
154230
164230
174231
184231
194231
204231
214231
224231
234131
244131
254131
264131
274131
284130
294130
304130
314130

How May really feels in Kayes

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
31 feel dangerously hot (≥ 39°C)
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.

Kayes weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°00.111.24.3
Feb36° / 22°0011.52.6
Mar39° / 25°0011.90.6
Apr42° / 28°00.112.30.0
May42° / 30°51.312.70.0
Jun39° / 29°244.512.80.6
Jul35° / 26°9811.212.82.6
Aug32° / 25°16015.112.53.3
Sep33° / 25°10811.212.13.3
Oct36° / 25°244.511.72.2
Nov36° / 22°10.211.32.2
Dec34° / 20°10.111.23.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37822
47822
57822
67822
77822
87822
97723
107624
117525
127525
137426
147327
157228
167228
177129
187030
197030
206931
216832
226832
236832
246733
256733
266733
276733
286733
296733
306733
316634

Chance of precipitation in May

Any precipitation

Kayes gets around 5 mm of rain over 1.3 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 4% and peaks near 9% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
72
82
92
102
112
123
133
143
154
164
174
185
195
205
215
226
236
246
257
267
277
288
298
308
319

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17418620
27119730
37119730
46920830
56720940
66621940
764211050
861211161
958221271
1055221481
1153221591
12512216101
13482317112
14452318122
15432320122
16402321133
17382322143
18362323153
19352323153
20332324164
21312325174
22302325174
23292226185
24282226195
25272126196
26262126206
27252026217
28242026228
29231926239
302219252410
312118252611

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 6:28 AM to 6:20 AM, and sunset from 6:58 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:286:58
212.56:276:58
312.56:276:59
412.56:266:59
512.66:266:59
612.66:256:59
712.66:257:00
812.66:257:00
912.66:247:00
1012.66:247:00
1112.66:247:01
1212.66:237:01
1312.66:237:01
1412.66:237:01
1512.76:227:02
1612.76:227:02
1712.76:227:02
1812.76:217:03
1912.76:217:03
2012.76:217:03
2112.76:217:04
2212.76:217:04
2312.76:207:04
2412.76:207:04
2512.76:207:05
2612.86:207:05
2712.86:207:05
2812.86:207:06
2912.86:207:06
3012.86:207:06
3112.86:207:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.18 kWh/m².

For context, solar energy here swings from a low near 4.73 kWh/m² to a high of 7.29 kWh/m² in April across the year — May's 7.18 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.2Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.1Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
317.0Intense
Planning a trip in May

Hazard calendar for Kayes

In seasonPeak

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

Kayes sees seasonal dust haze (February–October), heaviest in June.

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

Is May a good time to visit Kayes?

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

0.0
Sightseeing
11th-best month of the year
1.8
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Kayes.

What to pack for Kayes in May

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

In May, Kayes sees daytime highs around 42°C and nights near 30°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Kayes in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kayes peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeVery highAug 18UV 13Dec 19UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar12Extreme
Apr10Very high
May9Very high
Jun10Very high
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Kayes 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 Kayes is worst in November — around 68 µg/m³ PM2.5 (unhealthy), about 4.4× the cleanest month (August, 16 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyNov 1567 µg/m³Aug 1816 µg/m³
PM2.5 (µg/m³)Level
Jan57Unhealthy
Feb67Unhealthy
Mar61Unhealthy
Apr50Poor
May48Poor
Jun41Poor
Jul22Moderate
Aug16Moderate
Sep20Moderate
Oct60Unhealthy
Nov68Unhealthy
Dec57Unhealthy
Location & terrain

Where is Kayes?

Kayes sits at 14.4°N, 11.4°W, 47 m above sea level, in Mali. The nearest listed city is Bafoulabé, 97 km away.

SélibabyEl ’AyoûnMahinaNioroKanelKédougouMatam

Topography around Kayes

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

Within 3 km, the terrain around Kayes has only modest variations in elevation — a maximum elevation change of 27 m around an average of 38 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 328 m; within 80 km, significant variations in elevation — a maximum elevation change of 561 m.

The land around Kayes is covered by artificial surfaces (57%) within 3 km, grassland (60%) within 16 km, and grassland (68%) and shrubs (24%) within 80 km.

3 km
27 m
16 km
328 m
80 km
561 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Bafoulabé 97 km · Sélibaby 112 km · El ’Ayoûn 127 km · Mahina 157 km · Nioro 217 km · Kanel 219 km · Kédougou 225 km · Matam 236 km

Mali travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,193
2025
Happiness
4.6 / 10
World Happiness, 2025
Road deaths
22.7
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 408
Religion
Muslim 94%Christian 3%none 3%animist 1%

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 Kayes (14.4478°, -11.4439°, elevation 47 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).