Keren weather in May

In May, Keren sees average daytime highs of 32°C and overnight lows near 18°C, with 20 mm of rain across 5.6 wet days and about 12.7 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 74% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Keren's 8th-clearest and 9th-windiest month. For the whole year in context, see Keren's year-round climate.

Daytime high
32°
1st warmest
Overnight low
18°
11th coldest
Rainfall
20 mm
5.6 wet days
Daylight
12 h 42 min
6:00 AM – 6:44 PM
Cloud cover
29%
8th clearest
Wind
7 km/h
9th windiest
Solar energy
6.87 kWh/m²
Travel score
4.9
out of 10

Keren is city in Eritrea.

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 32°C through the month.

A typical May day in Keren reaches about 32°C in the afternoon and slips back to 18°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13218
23218
33218
43218
53218
63218
73218
83218
93218
103218
113218
123218
133218
143218
153218
163218
173218
183218
193218
203219
213219
223219
233219
243219
253219
263219
273219
283219
293219
303219
313219

Keren weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 14°10.111.28.8
Feb28° / 15°10.111.58.1
Mar30° / 16°51.811.96.6
Apr31° / 17°134.912.35.4
May32° / 18°205.612.74.9
Jun30° / 19°421112.95.3
Jul26° / 17°8620.112.85.2
Aug24° / 17°19328.312.54.1
Sep27° / 16°12316.812.15.7
Oct28° / 15°61.611.67.9
Nov27° / 15°30.911.38.7
Dec26° / 14°10.111.18.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% 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 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1919
2919
3919
49010
58911
68911
78911
88911
98911
108812
118812
128812
138812
148713
158713
168713
178713
188713
198713
208713
218713
228614
238614
248614
258614
268515
278515
288515
298515
308515
318515

Chance of precipitation in May

Any precipitation

Keren gets around 20 mm of rain over 5.6 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 18% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
120
220
319
419
519
619
719
818
918
1018
1118
1218
1318
1417
1517
1617
1717
1817
1917
2017
2117
2217
2317
2417
2517
2618
2718
2818
2919
3020
3120

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
166286
266286
366286
466286
567276
667276
767276
868266
968266
1069256
1169256
1270255
1371245
1471245
1572235
1673225
1773225
1874215
1975205
2076195
2177185
2277176
2377176
2478166
2579156
2679156
2780146
2880146
2980146
3080146
3180146

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 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
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 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 6:07 AM to 5:58 AM, and sunset from 6:40 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:076:40
212.66:066:40
312.66:066:41
412.66:056:41
512.66:056:41
612.66:046:41
712.66:046:42
812.66:036:42
912.76:036:42
1012.76:036:43
1112.76:026:43
1212.76:026:43
1312.76:016:43
1412.76:016:44
1512.76:016:44
1612.76:006:44
1712.76:006:45
1812.86:006:45
1912.86:006:45
2012.85:596:46
2112.85:596:46
2212.85:596:46
2312.85:596:47
2412.85:596:47
2512.85:586:47
2612.85:586:48
2712.85:586:48
2812.85:586:48
2912.85:586:49
3012.95:586:49
3112.95:586:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.87 kWh/m².

For context, solar energy here swings from a low near 5.14 kWh/m² to a high of 7.05 kWh/m² in April across the year — May's 6.87 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
106.9Intense
116.9Intense
126.9Intense
136.9Intense
146.9Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.6Intense
Planning a trip in May

Hazard calendar for Keren

In seasonPeak

None of Keren's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Keren sees seasonal dust haze (June–August), heaviest in July.

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

Is May a good time to visit Keren?

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

4.9
Sightseeing
11th-best month of the year
7.6
Beach & pool
8th-best month of the year

May is a reasonable time to visit Keren for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Keren in May

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

In May, Keren sees daytime highs around 32°C and nights near 18°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Keren in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Keren peaks around April 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highApr 14UV 14Dec 13UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Keren 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 Keren is worst in May — around 23 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 2023 µg/m³Dec 1214 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar23Moderate
Apr21Moderate
May23Moderate
Jun22Moderate
Jul22Moderate
Aug20Moderate
Sep17Moderate
Oct19Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

Where is Keren?

Keren sits at 15.8°N, 38.5°E, 1,399 m above sea level, in Eritrea. The nearest listed city is Asmara, 71 km away.

AsmaraMendeferaMassawaBarentuSheraroIntich’oAdwaAksum

Topography around Keren

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

Within 3 km, the terrain around Keren has significant variations in elevation — a maximum elevation change of 412 m around an average of 1,420 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,346 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,515 m.

The land around Keren is covered by grassland (48%) and cropland (23%) within 3 km, grassland (46%) and shrubs (37%) within 16 km, and grassland (47%), shrubs (23%) and bare terrain (22%) within 80 km.

3 km
412 m
16 km
1,346 m
80 km
2,515 m
shrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Asmara 71 km · Mendefera 106 km · Massawa 111 km · Barentu 119 km · Sheraro 163 km · Intich’o 183 km · Adwa 186 km · Aksum 187 km

Eritrea travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / L
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2021
GDP per capita
$689
2011
Homicide rate
15.6
per 100k, 2012
Road deaths
37.9
per 100k/yr, 2019
Income group
Low
World Bank

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 Keren (15.7779°, 38.4511°, elevation 1,399 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).