Mertule Maryam weather in May

In May, Mertule Maryam sees average daytime highs of 27°C and overnight lows near 15°C, with 36 mm of rain across 5.3 wet days and about 12.5 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 41% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Mertule Maryam's 8th-clearest and 1st-windiest month. For the whole year in context, see Mertule Maryam's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
15°
12th coldest
Rainfall
36 mm
5.3 wet days
Daylight
12 h 30 min
6:08 AM – 6:38 PM
Cloud cover
49%
8th clearest
Wind
6 km/h
1st windiest
Solar energy
5.98 kWh/m²
Travel score
7.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical May day in Mertule Maryam reaches about 27°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, May runs on par with April and about 2°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202715
212715
222715
232715
242715
252715
262715
272715
282715
292715
302715
312715

Mertule Maryam weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 12°274.211.48.2
Feb26° / 13°304.911.67.7
Mar27° / 14°67911.97.0
Apr27° / 15°47712.27.1
May27° / 15°365.312.57.4
Jun25° / 15°519.112.67.0
Jul22° / 14°23224.812.64.4
Aug21° / 13°23925.112.44.3
Sep22° / 13°6310.612.16.6
Oct24° / 14°142.411.88.6
Nov24° / 13°122.211.58.9
Dec24° / 12°132.211.48.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36040
46040
56139
66139
76238
86337
96337
106337
116436
126436
136436
146535
156535
166535
176634
186634
196634
206634
216634
226733
236733
246832
256931
266931
277030
287129
297228
307228
317327

Chance of precipitation in May

Any precipitation

Mertule Maryam gets around 36 mm of rain over 5.3 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 17% and peaks near 24% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
124
224
324
423
523
622
722
821
921
1020
1120
1219
1318
1418
1517
1616
1715
1815
1914
2014
2113
2213
2313
2413
2513
2613
2713
2813
2913
3014
3114

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15982
16982
17982
18982
19982
20982
21982
22982
23982
24991
25991
26991
27991
28991
29991
30991
31991

Wind in May

Winds average 6 km/h in May, the windiest month of the year.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 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 6:13 AM to 6:07 AM, and sunset from 6:35 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:136:35
212.46:126:36
312.46:126:36
412.46:126:36
512.46:116:36
612.46:116:36
712.46:116:36
812.46:106:37
912.46:106:37
1012.56:106:37
1112.56:096:37
1212.56:096:37
1312.56:096:37
1412.56:096:38
1512.56:096:38
1612.56:086:38
1712.56:086:38
1812.56:086:38
1912.56:086:39
2012.56:086:39
2112.56:076:39
2212.56:076:39
2312.56:076:40
2412.56:076:40
2512.66:076:40
2612.66:076:40
2712.66:076:41
2812.66:076:41
2912.66:076:41
3012.66:076:42
3112.66:076:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.98 kWh/m².

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 6.39 kWh/m² in April across the year — May's 5.98 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
196.0Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in May

Hazard calendar for Mertule Maryam

In seasonPeak

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

Mertule Maryam's monsoon runs July–August, when most of the year's rain falls.

Mertule Maryam sees seasonal dust haze (June), heaviest in June.

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

Is May a good time to visit Mertule Maryam?

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

7.4
Sightseeing
6th-best month of the year
7.4
Beach & pool
3rd-best month of the year

May is one of the better times to visit Mertule Maryam for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mertule Maryam in May

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

In May, Mertule Maryam sees daytime highs around 27°C and nights near 15°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Mertule Maryam 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 Mertule Maryam peaks around March 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 22UV 15Dec 11UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Mertule Maryam 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 Mertule Maryam is worst in January — around 45 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorModeratePoorJan 1345 µg/m³Aug 1132 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb40Poor
Mar36Poor
Apr34Moderate
May33Moderate
Jun40Poor
Jul33Moderate
Aug32Moderate
Sep40Poor
Oct42Poor
Nov40Poor
Dec43Poor
Location & terrain

Where is Mertule Maryam?

Mertule Maryam sits at 10.8°N, 38.3°E, 2,133 m above sea level, in Ethiopia. The nearest listed city is Bichena, 43 km away.

ĀdētNefas Mewch’a

Topography around Mertule Maryam

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

Within 3 km, the terrain around Mertule Maryam has large variations in elevation — a maximum elevation change of 876 m around an average of 2,210 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,045 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,038 m.

The land around Mertule Maryam is covered by cropland (55%) and shrubs (22%) within 3 km, cropland (64%) within 16 km, and cropland (58%) and grassland (21%) within 80 km.

3 km
876 m
16 km
2,045 m
80 km
3,038 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Bichena 43 km · Wegeda 44 km · Mot’a 52 km · Lumamē 74 km · Debre Mark’os 79 km · Dembech’a 91 km · Ādēt 98 km · Nefas Mewch’a 102 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 Mertule Maryam (10.8333°, 38.2667°, elevation 2,133 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).