Kosti weather in May

In May, Kosti sees average daytime highs of 40°C and overnight lows near 28°C, with 15 mm of rain across 4.1 wet days and about 12.6 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 41°C in the first days to 39°C by the end. The sky is clear or mostly clear about 64% 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 42 min by month's end. Set against the rest of the year, May is Kosti's 7th-clearest and 10th-windiest month. For the whole year in context, see Kosti's year-round climate.

Daytime high
40°
2nd warmest
Overnight low
28°
12th coldest
Rainfall
15 mm
4.1 wet days
Daylight
12 h 36 min
6:27 AM – 7:04 PM
Cloud cover
36%
7th clearest
Wind
11 km/h
10th windiest
Solar energy
6.81 kWh/m²
Travel score
0.1
out of 10

Kosti is major city in Sudan.

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 41°C in the first days to 39°C by the end.

A typical May day in Kosti reaches about 40°C in the afternoon and slips back to 28°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 37°C and 43°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)
14127
24127
34127
44127
54127
64127
74127
84127
94127
104127
114128
124028
134028
144028
154028
164028
174028
184028
194028
204028
214028
224028
234028
244028
253928
263928
273928
283928
293928
303928
313928

How May really feels in Kosti

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.

Kosti 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
Jan33° / 19°0011.34.7
Feb35° / 21°0011.63.1
Mar38° / 24°0011.91.0
Apr41° / 26°20.512.30.0
May40° / 28°154.112.60.1
Jun38° / 27°236.312.81.1
Jul35° / 25°6812.412.72.5
Aug33° / 24°7313.412.43.2
Sep35° / 25°399.612.12.6
Oct37° / 25°175.511.71.7
Nov37° / 23°00.111.42.3
Dec34° / 20°0011.24.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38317
48317
58317
68218
78218
88218
98218
108218
118119
128119
138020
148020
158020
168020
177921
187921
197921
207921
217723
227723
237723
247723
257822
267822
277822
287921
297921
307921
317921

Chance of precipitation in May

Any precipitation

Kosti gets around 15 mm of rain over 4.1 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 13% and peaks near 19% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
47
57
68
78
89
99
1010
1110
1211
1311
1412
1513
1613
1714
1814
1915
2016
2116
2217
2317
2418
2518
2618
2719
2819
2919
3019
3119

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 42% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
167101670
265101780
363101791
462101891
5601118101
6591119101
7581119111
8571120111
9571120111
10541121122
11541121122
12541121122
13511222123
14501222133
15481223133
16461324144
17441325154
18411325164
19391326175
20361327195
21331328205
22311428226
23281429236
24251430256
25231431266
26211332287
27181332297
28171333307
29151334327
30131235337
31121236347

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 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 6:33 AM to 6:25 AM, and sunset from 7:00 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:337:00
212.56:327:01
312.56:327:01
412.56:317:01
512.56:317:01
612.56:317:01
712.56:307:02
812.56:307:02
912.56:297:02
1012.66:297:02
1112.66:297:03
1212.66:287:03
1312.66:287:03
1412.66:287:03
1512.66:287:04
1612.66:277:04
1712.66:277:04
1812.66:277:04
1912.66:277:05
2012.66:277:05
2112.66:267:05
2212.76:267:05
2312.76:267:06
2412.76:267:06
2512.76:267:06
2612.76:267:07
2712.76:267:07
2812.76:267:07
2912.76:257:07
3012.76:257:08
3112.76:257:08

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 5.55 kWh/m² to a high of 7.43 kWh/m² in April across the year — May's 6.81 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.2Intense
47.2Intense
57.2Intense
67.1Intense
77.1Intense
87.1Intense
97.1Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
146.9Intense
156.9Intense
166.9Intense
176.8Intense
186.8Intense
196.7Intense
206.7Intense
216.7Intense
226.6Intense
236.6Intense
246.6Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Hazard calendar for Kosti

In seasonPeak

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

Kosti sees seasonal dust haze (April–August), heaviest in April.

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

Is May a good time to visit Kosti?

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
11th-best month of the year

May is a weaker month for outdoor sightseeing in Kosti.

What to pack for Kosti in May

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

In May, Kosti sees daytime highs around 40°C and nights near 28°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Kosti in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kosti peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highMar 18UV 13Dec 12UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr12Extreme
May10Extreme
Jun11Extreme
Jul9Very high
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Kosti 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 Kosti is worst in March — around 46 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1745 µg/m³Aug 1418 µg/m³
PM2.5 (µg/m³)Level
Jan40Poor
Feb41Poor
Mar46Poor
Apr41Poor
May28Moderate
Jun23Moderate
Jul19Moderate
Aug18Moderate
Sep21Moderate
Oct24Moderate
Nov25Moderate
Dec32Moderate
Location & terrain

Where is Kosti?

Kosti sits at 13.2°N, 32.7°E, 387 m above sea level, in Sudan. The nearest listed city is Rabak, 9.0 km away.

SennarKinānaMaiurnoUmm Shawkah

Topography around Kosti

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

Within 3 km, the terrain around Kosti has only modest variations in elevation — a maximum elevation change of 15 m around an average of 383 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 35 m; within 80 km, significant variations in elevation — a maximum elevation change of 295 m.

The land around Kosti is covered by artificial surfaces (53%) within 3 km, grassland (48%) and cropland (32%) within 16 km, and cropland (59%) and grassland (36%) within 80 km.

3 km
15 m
16 km
35 m
80 km
295 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Rabak 9.0 km · Al Jazeera Aba 18 km · Tandaltī 88 km · Ad Douiem 101 km · Sennar 108 km · Kināna 112 km · Maiurno 112 km · Umm Shawkah 121 km

Sudan travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / F / G
230 V · 50 Hz
Prices
≈ 215% of US
price level, 2025
GDP per capita
$1,165
2025
Happiness
4.1 / 10
World Happiness, 2017
Homicide rate
5.1
per 100k, 2008
Road deaths
26.8
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 421

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 Kosti (13.1629°, 32.6635°, elevation 387 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).