Moroni weather in August

In August, Moroni sees average daytime highs of 24°C and overnight lows near 22°C, with 27 mm of rain across 10.3 wet days and about 11.6 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 53% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 30 min at the start of August to 11 h 48 min by month's end. Set against the rest of the year, August is Moroni's 1st-clearest and 4th-windiest month. For the whole year in context, see Moroni's year-round climate.

Daytime high
24°
11th warmest
Overnight low
22°
1st coldest
Rainfall
27 mm
10.3 wet days
Daylight
11 h 36 min
6:23 AM – 5:59 PM
Cloud cover
40%
1st clearest
Wind
11 km/h
4th windiest
Solar energy
5.7 kWh/m²
Travel score
7.3
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical August day in Moroni reaches about 24°C in the afternoon and slips back to 22°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 25°C. Set against its neighbours, August runs on par with July and on par with September.

18°20°22°24°26°151015202531
Avg high (°C)Avg low (°C)
12422
22422
32422
42422
52421
62421
72421
82422
92422
102422
112422
122422
132422
142422
152422
162422
172422
182422
192422
202422
212422
222422
232422
242422
252422
262422
272422
282422
292422
302422
312422

Moroni weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 11th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 30% of August, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37921
47921
58020
68020
78020
88119
98218
108317
118317
128317
138416
148416
158416
168416
178515
188515
198515
208614
218713
228713
238713
248713
258713
268614
278614
288614
298614
308614
318614

Chance of precipitation in August

Any precipitation

Moroni gets around 27 mm of rain over 10.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
340
439
538
638
737
836
936
1035
1135
1234
1334
1433
1533
1632
1732
1832
1932
2031
2131
2231
2331
2430
2530
2630
2730
2830
2929
3029
3129

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 86% of days. Sticky, muggy-or-worse air turns up on roughly 87% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
115841
215841
315841
415841
515841
615841
714851
814851
914851
1014851
1113861
1213861
1312871
1412871
1512871
1611881
1711881
1811881
1911881
2011881
2111881
2211881
2311881
2411872
2511872
2612862
2712862
2812862
2912862
3012862
3112862

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512calm
612calm
712calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 30 min at the start of August to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over August. Sunrise moves from 6:29 AM to 6:14 AM, and sunset from 5:57 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:295:57
211.56:285:58
311.56:285:58
411.56:285:58
511.56:275:58
611.56:275:58
711.56:275:58
811.56:265:58
911.56:265:59
1011.66:265:59
1111.66:255:59
1211.66:255:59
1311.66:245:59
1411.66:245:59
1511.66:235:59
1611.66:235:59
1711.66:225:59
1811.66:226:00
1911.66:216:00
2011.66:216:00
2111.76:206:00
2211.76:206:00
2311.76:196:00
2411.76:186:00
2511.76:186:00
2611.76:176:00
2711.76:176:00
2811.76:166:00
2911.76:156:00
3011.86:156:00
3111.86:146:00

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.7 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 — August's 5.7 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.4Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in August

Hazard calendar for Moroni

In seasonPeak

None of Moroni's seasonal hazards are active in August. 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 August a good time to visit Moroni?

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

7.3
Sightseeing
2nd-best month of the year
6.2
Beach & pool
3rd-best month of the year

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

What to pack for Moroni in August

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

In August, Moroni sees daytime highs around 24°C and nights near 22°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Moroni in August

The nearest coast averages about 26°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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
August 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).