Arerti weather in May

In May, Arerti sees average daytime highs of 42°C and overnight lows near 28°C, with 8 mm of rain across 1.7 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 5th-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 74% of the time in May, and the air most often feels muggy.

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 Arerti's 4th-clearest and 9th-windiest month. For the whole year in context, see Arerti's year-round climate.

Daytime high
42°
3rd warmest
Overnight low
28°
8th coldest
Rainfall
8 mm
1.7 wet days
Daylight
12 h 36 min
5:54 AM – 6:33 PM
Cloud cover
27%
4th clearest
Wind
11 km/h
9th windiest
Solar energy
6.92 kWh/m²
Travel score
0.0
out of 10

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 Arerti reaches about 42°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 39°C and 44°C. Set against its neighbours, May runs about 2°C warmer than April and about 1°C cooler than June.

25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
14129
24129
34129
44129
54129
64129
74129
84129
94129
104129
114129
124129
134129
144129
154128
164128
174228
184228
194228
204228
214228
224228
234228
244228
254228
264228
274228
284228
294228
304228
314228

How May really feels in Arerti

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.

Arerti weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°30.711.34.3
Feb35° / 24°30.611.53.3
Mar37° / 25°71.311.91.8
Apr40° / 28°122.412.30.3
May42° / 28°81.712.60.0
Jun43° / 29°10.612.80.0
Jul42° / 30°103.212.70.0
Aug41° / 30°195.912.50.0
Sep41° / 29°72.812.10.0
Oct39° / 27°91.811.70.7
Nov37° / 25°40.711.42.2
Dec35° / 24°10.311.23.7

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 14% of May, with mostly cloudy or overcast conditions the remaining 12%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38812
48812
58713
68812
78812
88812
98911
108911
118911
128911
138911
148911
158812
168812
178812
188812
198911
208812
218812
228812
238812
248713
258713
268713
278713
288614
298614
308614
318515

Chance of precipitation in May

Any precipitation

Arerti gets around 8 mm of rain over 1.7 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 6% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
136
146
156
166
176
186
196
206
216
226
236
246
255
265
275
284
294
304
314

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
115122530181
215122530171
315122531171
415122531161
515122531161
615122631151
714132631151
814132631151
914142630141
1013142730142
1113152730142
1212152730142
1312162729142
1411162830132
1511172829133
1610172829133
1710182829123
1810182829123
199192928113
209202928113
219202928103
229212928103
23921302893
24922302793
25923302783
261023312773
271024312662
281024322662
291024332652
301125332552
311125342541

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
112calm
212calm
312calm
412calm
512calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3013light breeze
3113light breeze

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 6:00 AM to 5:52 AM, and sunset from 6:29 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:006:29
212.55:596:29
312.55:596:30
412.55:586:30
512.55:586:30
612.55:586:30
712.65:576:31
812.65:576:31
912.65:566:31
1012.65:566:31
1112.65:566:32
1212.65:556:32
1312.65:556:32
1412.65:556:32
1512.65:556:33
1612.65:546:33
1712.75:546:33
1812.75:546:33
1912.75:546:34
2012.75:536:34
2112.75:536:34
2212.75:536:35
2312.75:536:35
2412.75:536:35
2512.75:536:36
2612.75:526:36
2712.75:526:36
2812.75:526:36
2912.75:526:37
3012.85:526:37
3112.85:526:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.92 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.92 kWh/m² in May across the year — May's 6.92 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in May

Hazard calendar for Arerti

In seasonPeak

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

Arerti sees seasonal dust haze (June–September), heaviest in July.

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

Is May a good time to visit Arerti?

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

0.0
Sightseeing
8th-best month of the year
1.9
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Arerti.

What to pack for Arerti in May

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

In May, Arerti sees daytime highs around 42°C and nights near 28°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Arerti 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 Arerti peaks around March 20 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 20UV 13Dec 14UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun9Very high
Jul8Very high
Aug10Very high
Sep11Extreme
Oct10Very high
Nov9Very high
Dec8Very high

Air quality in Arerti 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 Arerti is worst in August — around 37 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (October, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateAug 1036 µg/m³Oct 2217 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb27Moderate
Mar30Moderate
Apr24Moderate
May24Moderate
Jun32Moderate
Jul36Poor
Aug37Poor
Sep25Moderate
Oct17Moderate
Nov18Moderate
Dec20Moderate
Location & terrain

Where is Arerti?

Arerti sits at 13.9°N, 40.7°E, -111 m above sea level, in Ethiopia. The nearest listed city is Wik’ro, 116 km away.

Wik’roIdaga HamusDoloĀdīgratMekeleIntich’oMehoniMaych’ew

Topography around Arerti

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

Within 3 km, the terrain around Arerti has only modest variations in elevation — a maximum elevation change of 39 m around an average of -111 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 265 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,617 m.

The land around Arerti is covered by bare terrain (99%) within 3 km, bare terrain (99%) within 16 km, and bare terrain (97%) within 80 km.

3 km
39 m
16 km
265 m
80 km
1,617 m
shrubsgrasslandbare terrainwater
May weather nearby: Wik’ro 116 km · Idaga Hamus 122 km · Dolo 122 km · Ādīgrat 135 km · Mekele 138 km · Intich’o 168 km · Mehoni 169 km · Maych’ew 178 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 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 Arerti (13.95°, 40.6667°, elevation -111 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).