Koro weather in May

In May, Koro sees average daytime highs of 40°C and overnight lows near 28°C, with 8 mm of rain across 2.8 wet days and about 12.6 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 40°C through the month. The sky is clear or mostly clear about 44% of the time in May, and the air most often feels humid.

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 Koro's 9th-clearest and 7th-windiest month. For the whole year in context, see Koro's year-round climate.

Daytime high
40°
2nd warmest
Overnight low
28°
12th coldest
Rainfall
8 mm
2.8 wet days
Daylight
12 h 36 min
5:49 AM – 6:28 PM
Cloud cover
50%
9th clearest
Wind
10 km/h
7th windiest
Solar energy
6.81 kWh/m²
Travel score
0.1
out of 10

Koro is city in Mali.

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 40°C through the month.

A typical May day in Koro reaches about 40°C in the afternoon and slips back to 28°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 37°C and 42°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

20°25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
14027
24027
34027
44027
54027
64027
74027
84027
94027
104028
114028
124028
134028
144028
154028
164028
174028
184028
194028
204028
214028
224028
234028
244028
254028
264028
274028
283928
293928
303928
313928

How May really feels in Koro

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.

Koro weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 16°10.111.36.1
Feb34° / 18°0011.54.0
Mar38° / 22°00.111.91.5
Apr40° / 25°51.512.30.1
May40° / 28°82.812.60.1
Jun38° / 27°287.112.81.2
Jul34° / 25°991512.72.6
Aug32° / 24°15917.612.53.3
Sep34° / 24°6910.812.13.1
Oct37° / 23°143.411.72.0
Nov36° / 19°0011.32.9
Dec32° / 16°0011.25.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36139
46139
56139
66040
76139
86139
96040
106040
116040
126040
136040
146040
156040
166040
176139
186040
196040
206139
216139
226238
236337
246436
256436
266535
276535
286634
296634
306733
316733

Chance of precipitation in May

Any precipitation

Koro gets around 8 mm of rain over 2.8 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 10% and peaks near 16% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
17
27
36
46
56
66
77
87
97
107
117
127
138
148
158
169
179
189
1910
2010
2111
2211
2312
2412
2513
2613
2714
2814
2915
3016
3116

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1471622141
2461623151
3441624161
4431524171
5411525181
6391526191
7371527201
8351528211
9331429221
10311430231
11281431252
12261432262
13241533272
14221534272
15201535283
16181535293
17161536303
18151536314
19131437324
20121437334
21111437335
22101338345
2391337365
2481237376
2581237386
2671136406
2761035427
286934437
295933468
305832488
314730509

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 5:55 AM to 5:47 AM, and sunset from 6:24 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:556:24
212.55:546:25
312.55:546:25
412.55:536:25
512.55:536:25
612.65:526:25
712.65:526:26
812.65:526:26
912.65:516:26
1012.65:516:26
1112.65:516:27
1212.65:506:27
1312.65:506:27
1412.65:506:27
1512.65:496:28
1612.65:496:28
1712.75:496:28
1812.75:496:29
1912.75:486:29
2012.75:486:29
2112.75:486:29
2212.75:486:30
2312.75:486:30
2412.75:476:30
2512.75:476:31
2612.75:476:31
2712.75:476:31
2812.75:476:32
2912.85:476:32
3012.85:476:32
3112.85:476:33

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.81 kWh/m².

For context, solar energy here swings from a low near 5.5 kWh/m² to a high of 6.97 kWh/m² in April across the year — May's 6.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in May

Hazard calendar for Koro

In seasonPeak

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

Koro sees seasonal dust haze (January–October), heaviest in May.

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

Is May a good time to visit Koro?

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

0.1
Sightseeing
11th-best month of the year
2.8
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Koro.

What to pack for Koro in May

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

In May, Koro sees daytime highs around 40°C and nights near 28°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Koro in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Koro peaks around March 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 16UV 13Dec 17UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr11Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Koro 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 Koro is worst in February — around 70 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (August, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorFeb 2270 µg/m³Aug 2014 µg/m³
PM2.5 (µg/m³)Level
Jan62Unhealthy
Feb70Unhealthy
Mar70Unhealthy
Apr57Unhealthy
May45Poor
Jun38Poor
Jul22Moderate
Aug14Moderate
Sep17Moderate
Oct32Moderate
Nov36Poor
Dec52Poor
Location & terrain

Where is Koro?

Koro sits at 14.1°N, 3.1°W, 260 m above sea level, in Mali. The nearest listed city is Bankass, 48 km away.

DouentzaTouganTitaoGourcyMopti

Topography around Koro

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

Within 3 km, the terrain around Koro has only modest variations in elevation — a maximum elevation change of 5 m around an average of 257 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 15 m; within 80 km, significant variations in elevation — a maximum elevation change of 505 m.

The land around Koro is covered by cropland (45%) and grassland (33%) within 3 km, cropland (62%) and grassland (29%) within 16 km, and grassland (58%) and cropland (24%) within 80 km.

3 km
5 m
16 km
15 m
80 km
505 m
shrubsgrasslandcroplandartificial surfacesbare terrainwetland
May weather nearby: Bankass 48 km · Bandiagara 66 km · Ouahigouya 89 km · Douentza 106 km · Tougan 110 km · Titao 114 km · Gourcy 123 km · Mopti 128 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 Koro (14.064°, -3.0754°, elevation 260 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).