Massawa weather in May

In May, Massawa sees average daytime highs of 33°C and overnight lows near 27°C, with 5 mm of rain across 1.3 wet days and about 12.7 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 32°C in the first days to 34°C by the end. The sky is clear or mostly clear about 75% of the time in May, and the air most often feels oppressive.

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 Massawa's 3rd-clearest and 8th-windiest month. For the whole year in context, see Massawa's year-round climate.

Daytime high
33°
5th warmest
Overnight low
27°
8th coldest
Rainfall
5 mm
1.3 wet days
Daylight
12 h 42 min
5:57 AM – 6:40 PM
Cloud cover
24%
3rd clearest
Wind
9 km/h
8th windiest
Solar energy
6.82 kWh/m²
Travel score
4.7
out of 10

Massawa is city on the Red Sea coast of Eritrea.

Density
48/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 32°C in the first days to 34°C by the end.

A typical May day in Massawa reaches about 33°C in the afternoon and slips back to 27°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, May runs about 3°C warmer than April and about 2°C cooler than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13126
23226
33227
43227
53227
63227
73227
83227
93227
103227
113227
123227
133327
143327
153327
163327
173327
183327
193327
203328
213328
223328
233428
243428
253428
263428
273428
283428
293428
303428
313428

How May really feels in Massawa

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
heat index over the day's high
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.

Massawa weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 22°10916.511.25.8
Feb25° / 22°6412.611.56.2
Mar27° / 23°337.811.97.0
Apr30° / 25°164.312.36.0
May33° / 27°51.312.74.7
Jun35° / 29°10.112.93.3
Jul36° / 30°5112.82.5
Aug36° / 30°50.912.52.5
Sep35° / 29°20.412.13.5
Oct32° / 27°184.511.65.0
Nov29° / 25°497.411.36.1
Dec27° / 23°851311.16.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% 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%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18713
28713
38713
48614
58614
68713
78713
88713
98713
108812
118713
128713
138713
148713
158713
168713
178812
188812
198812
208812
218812
229010
239010
249010
259010
269010
27919
28919
29919
30919
31919

Chance of precipitation in May

Any precipitation

Massawa gets around 5 mm of rain over 1.3 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 4% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
17
26
36
46
56
66
76
86
95
105
115
125
135
145
154
164
174
184
194
204
213
223
233
242
252
262
272
281
291
301
311

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
114175424
214175424
314175424
414175424
514175424
614175424
714175424
824185224
924185224
1024185224
1125195024
1225194924
1325204825
1426204725
1526204625
1627214525
1728214425
1829224225
1929224125
20210234024
21211243924
22312253723
23313263622
24314273521
25315283419
26316303417
27418303216
28419313214
29420323112
30421333011
3152134309

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 9 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
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:03 AM to 5:54 AM, and sunset from 6:36 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:036:36
212.66:026:36
312.66:026:36
412.66:016:37
512.66:016:37
612.66:006:37
712.66:006:37
812.65:596:38
912.65:596:38
1012.75:596:38
1112.75:586:39
1212.75:586:39
1312.75:586:39
1412.75:576:39
1512.75:576:40
1612.75:576:40
1712.75:566:40
1812.75:566:41
1912.85:566:41
2012.85:566:41
2112.85:556:42
2212.85:556:42
2312.85:556:42
2412.85:556:43
2512.85:556:43
2612.85:546:43
2712.85:546:44
2812.85:546:44
2912.85:546:44
3012.85:546:45
3112.95:546:45

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.82 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.05 kWh/m² to a high of 6.82 kWh/m² in May across the year — May's 6.82 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.8Intense
86.8Intense
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
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in May

Hazard calendar for Massawa

In seasonPeak

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

Massawa sees seasonal dust haze (May–September), heaviest in July.

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

Is May a good time to visit Massawa?

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

4.7
Sightseeing
8th-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Massawa in May

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

In May, Massawa sees daytime highs around 33°C and nights near 27°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Massawa in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in September at about 32°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°34°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun31Tropical
Jul32Tropical
Aug32Tropical
Sep32Tropical
Oct32Tropical
Nov30Tropical
Dec28Tropical

UV index in Massawa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Massawa peaks around April 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highVery highHighApr 11UV 12Dec 13UV 7
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr13Extreme
May9Very high
Jun9Very high
Jul8Very high
Aug9Very high
Sep10Extreme
Oct9Very high
Nov8Very high
Dec7High

Air quality in Massawa 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 Massawa is worst in May — around 94 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (December, 23 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyUnhealthyModerateMay 1292 µg/m³Dec 2023 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb31Moderate
Mar47Poor
Apr83Unhealthy
May94Unhealthy
Jun47Poor
Jul67Unhealthy
Aug94Unhealthy
Sep79Unhealthy
Oct64Unhealthy
Nov33Moderate
Dec23Moderate
Location & terrain

Where is Massawa?

Massawa sits at 15.6°N, 39.5°E, 9 m above sea level, in Eritrea. The nearest listed city is Asmara, 65 km away.

AsmaraMendeferaKerenĀdīgratIntich’oIdaga HamusAdwaAksum

Topography around Massawa

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

Within 3 km, the terrain around Massawa has only modest variations in elevation — a maximum elevation change of 10 m around an average of 1 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 320 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,874 m.

The land around Massawa is covered by water (76%) within 3 km, water (48%) and bare terrain (45%) within 16 km, and water (39%) and bare terrain (30%) within 80 km.

3 km
10 m
16 km
320 m
80 km
2,874 m
shrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Asmara 65 km · Mendefera 107 km · Keren 111 km · Ādīgrat 148 km · Intich’o 152 km · Idaga Hamus 158 km · Adwa 172 km · Aksum 184 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 Massawa (15.6081°, 39.4746°, elevation 9 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).