Mahajanga weather in August

In August, Mahajanga sees average daytime highs of 30°C and overnight lows near 21°C, with 1 mm of rain across 0.2 wet days and about 11.5 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 84% of the time in August, and the air most often feels humid.

Daylight stretches from about 11 h 18 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Mahajanga's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Mahajanga's year-round climate.

Daytime high
30°
9th warmest
Overnight low
21°
2nd coldest
Rainfall
1 mm
0.2 wet days
Daylight
11 h 30 min
6:15 AM – 5:43 PM
Cloud cover
19%
2nd clearest
Wind
13 km/h
2nd windiest
Solar energy
5.8 kWh/m²
Travel score
7.0
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical August day in Mahajanga reaches about 30°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
123021
133021
143021
153021
163021
173021
183021
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How August really feels in Mahajanga

Once humidity and wind are folded in, August averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mahajanga weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°43128.512.83.0
Feb30° / 25°3112412.53.1
Mar31° / 26°1972112.13.5
Apr32° / 25°438.311.74.7
May31° / 24°61.111.36.0
Jun30° / 22°10.211.16.9
Jul29° / 21°10.211.27.3
Aug30° / 21°10.211.57.0
Sep30° / 23°30.611.96.5
Oct31° / 24°174.312.45.5
Nov31° / 25°8015.112.74.2
Dec30° / 25°2052412.93.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 84% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 4%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1946
2955
3955
4955
5955
6955
7964
8964
9964
10964
11964
12964
13964
14964
15964
16964
17964
18973
19973
20973
21973
22973
23964
24964
25964
26964
27964
28964
29964
30964
31964

Chance of precipitation in August

Any precipitation

Mahajanga gets around 1 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
124244120
224144120
324145120
424145120
524146120
624046110
724047110
823948110
923949110
1023850110
1113751110
1213652110
1313553110
1413454110
1513354120
1613255120
1713156120
1813155130
1913155130
2013056130
2113055140
2213055140
2313054150
2412955150
2512954160
2612954160
2712854170
2812854170
2912753181
3012753181
3112653191

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light 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 August

DaylightNight

Daylight runs from about 11 h 18 min at the start of August to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over August. Sunrise moves from 6:22 AM to 6:04 AM, and sunset from 5:40 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:225:40
211.36:225:40
311.36:215:40
411.36:215:40
511.36:205:41
611.36:205:41
711.46:205:41
811.46:195:41
911.46:195:41
1011.46:185:42
1111.46:185:42
1211.46:175:42
1311.46:165:42
1411.46:165:43
1511.56:155:43
1611.56:155:43
1711.56:145:43
1811.56:145:43
1911.56:135:43
2011.56:125:44
2111.56:125:44
2211.56:115:44
2311.66:105:44
2411.66:105:44
2511.66:095:44
2611.66:085:44
2711.66:075:45
2811.66:075:45
2911.66:065:45
3011.76:055:45
3111.76:045:45

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.8 kWh/m².

For context, solar energy here swings from a low near 4.93 kWh/m² to a high of 7.13 kWh/m² in October across the year — August's 5.8 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.6Bright
95.6Bright
105.6Bright
115.7Bright
125.7Bright
135.7Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Intense
246.0Intense
256.0Intense
266.1Intense
276.1Intense
286.1Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in August

Hazard calendar for Mahajanga

In seasonPeak

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

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

Mahajanga's monsoon runs December–March, 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 Mahajanga?

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

7.0
Sightseeing
2nd-best month of the year
9.2
Beach & pool
2nd-best month of the year

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

What to pack for Mahajanga in August

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

In August, Mahajanga sees daytime highs around 30°C and nights near 21°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Mahajanga in August

The nearest coast averages about 25°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 30°C and coldest in August near 25°C.

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

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov29Tropical
Dec29Tropical

UV index in Mahajanga in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Mahajanga peaks around February 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 14UV 16Jun 19UV 7
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec14Extreme
Location & terrain

Where is Mahajanga?

Mahajanga sits at 15.7°S, 46.3°E, 20 m above sea level, in Madagascar. The nearest listed city is Marovoay, 56 km away.

Ambato BoenySitampikySoalalaBorizinyMaevatananaMampikonyTsaratanana

Topography around Mahajanga

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

Within 3 km, the terrain around Mahajanga has only modest variations in elevation — a maximum elevation change of 45 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, significant variations in elevation — a maximum elevation change of 310 m.

The land around Mahajanga is covered by water (52%) and artificial surfaces (24%) within 3 km, water (50%) and grassland (33%) within 16 km, and grassland (42%) and water (34%) within 80 km.

3 km
45 m
16 km
98 m
80 km
310 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Marovoay 56 km · Ambato Boeny 94 km · Sitampiky 108 km · Soalala 115 km · Boriziny 146 km · Maevatanana 148 km · Mampikony 148 km · Tsaratanana 186 km

Madagascar travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$599
2025
Happiness
4.2 / 10
World Happiness, 2025
Safe drinking water
22%
of population, 2024
Road deaths
29.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 457
Religion
Church of Jesus Christ in Madagascar/Malagasy Lutheran Church/Anglican Church 34%Roman Catholic 32%none 22%other Christian 8%

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 Mahajanga (-15.7167°, 46.3167°, elevation 20 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).