Moroni weather in May

In May, Moroni sees average daytime highs of 26°C and overnight lows near 24°C, with 64 mm of rain across 17.1 wet days and about 11.5 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 36% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of May to 11 h 24 min by month's end. Set against the rest of the year, May is Moroni's 7th-clearest and 3rd-windiest month. For the whole year in context, see Moroni's year-round climate.

Daytime high
26°
7th warmest
Overnight low
24°
6th coldest
Rainfall
64 mm
17.1 wet days
Daylight
11 h 30 min
6:19 AM – 5:47 PM
Cloud cover
50%
7th clearest
Wind
13 km/h
3rd windiest
Solar energy
5.3 kWh/m²
Travel score
5.8
out of 10

Moroni is capital of Comoros.

Density
2,492/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

Day-to-day highs hold fairly steady near 26°C through the month.

A typical May day in Moroni reaches about 26°C in the afternoon and slips back to 24°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12724
22724
32624
42624
52624
62624
72624
82624
92624
102624
112624
122624
132624
142624
152624
162624
172624
182624
192624
202624
212624
222624
232623
242623
252623
262623
272523
282523
292523
302523
312523

Moroni weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°24022.812.64.4
Feb27° / 25°21221.412.44.2
Mar27° / 25°19925.812.14.1
Apr27° / 24°12422.611.74.6
May26° / 24°6417.111.55.8
Jun25° / 22°4415.211.36.3
Jul24° / 22°4015.211.46.5
Aug24° / 22°2710.311.67.3
Sep25° / 22°207.411.97.6
Oct26° / 23°33912.37.1
Nov27° / 24°6913.212.56.2
Dec27° / 25°1662112.74.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 34% of May, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
26040
36238
46238
56337
66436
76535
86634
96733
106832
116832
126832
137030
147030
157030
167030
177228
187228
197228
207327
217327
227327
237327
247426
257525
267525
277525
287624
297624
307723
317723

Chance of precipitation in May

Any precipitation

Moroni gets around 64 mm of rain over 17.1 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 56% and peaks near 67% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
167
267
366
466
565
664
763
862
960
1059
1158
1258
1357
1456
1555
1655
1754
1853
1952
2052
2151
2251
2350
2450
2550
2650
2750
2850
2949
3049
3149

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 71% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
108911
209901
3010891
4011881
5012880
6013870
7014860
8016840
9017830
10019810
11020800
12121780
13123760
14124750
15125740
16127720
17128710
18129700
19131680
20133660
21134650
22136630
23137620
24139600
25140590
26242560
27243550
28245530
29247510
30349490
31351460

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112calm
212calm
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 36 min at the start of May to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:16 AM to 6:23 AM, and sunset from 5:52 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:165:52
211.66:175:51
311.66:175:51
411.66:175:51
511.66:175:50
611.56:175:50
711.56:175:50
811.56:185:49
911.56:185:49
1011.56:185:49
1111.56:185:48
1211.56:185:48
1311.56:195:48
1411.56:195:48
1511.56:195:47
1611.56:195:47
1711.56:205:47
1811.46:205:47
1911.46:205:47
2011.46:205:46
2111.46:215:46
2211.46:215:46
2311.46:215:46
2411.46:215:46
2511.46:225:46
2611.46:225:46
2711.46:225:46
2811.46:225:46
2911.46:235:45
3011.46:235:45
3111.46:235:45

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.3 kWh/m².

For context, solar energy here swings from a low near 4.9 kWh/m² to a high of 7.07 kWh/m² in November across the year — May's 5.3 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Moroni

In seasonPeak

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

Moroni sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Moroni's monsoon runs December–April, when most of the year's rain falls.

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

Is May a good time to visit Moroni?

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

5.8
Sightseeing
7th-best month of the year
5.5
Beach & pool
6th-best month of the year

May is a reasonable time to visit Moroni for sightseeing.

What to pack for Moroni in May

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

In May, Moroni sees daytime highs around 26°C and nights near 24°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

Sea temperature near Moroni in May

The nearest coast averages about 28°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 March at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Moroni 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 Moroni peaks around March 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 14Jun 20UV 9
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Moroni?

Moroni sits at 11.7°S, 43.3°E, 27 m above sea level, in Comoros. The nearest listed city is Fomboni, 84 km away.

FomboniMoutsamoudou

Topography around Moroni

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

Within 3 km, the terrain around Moroni has significant variations in elevation — a maximum elevation change of 484 m around an average of 94 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,351 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,346 m.

The land around Moroni is covered by trees (41%), water (36%) and artificial surfaces (23%) within 3 km, water (51%) and trees (32%) within 16 km, and water (90%) within 80 km.

3 km
484 m
16 km
2,351 m
80 km
2,346 m
treesshrubsgrasslandartificial surfacesbare terrainwater
May weather nearby: Fomboni 84 km · Moutsamoudou 135 km · Koungou 241 km · Kaouéni 245 km · Mtsapéré 245 km · Mamoudzou 246 km · Dzaoudzi 249 km · Labattoir 251 km

Comoros travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 49% of US
price level, 2025
GDP per capita
$2,056
2025
Happiness
3.9 / 10
World Happiness, 2025
Road deaths
26.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Muslim 98%ethnic religionist 1%Christian 1%other 0%

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 Moroni (-11.7022°, 43.2551°, elevation 27 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).