Ambilobe weather in September

In September, Ambilobe sees average daytime highs of 33°C and overnight lows near 20°C, with 9 mm of rain across 3 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 60% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Ambilobe's 2nd-clearest and 1st-windiest month. For the whole year in context, see Ambilobe's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
20°
4th coldest
Rainfall
9 mm
3 wet days
Daylight
11 h 54 min
5:40 AM – 5:36 PM
Cloud cover
34%
2nd clearest
Wind
8 km/h
1st windiest
Solar energy
6.46 kWh/m²
Travel score
4.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical September day in Ambilobe reaches about 33°C in the afternoon and slips back to 20°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13219
23319
33319
43319
53319
63319
73319
83319
93320
103320
113320
123320
133320
143320
153320
163320
173320
183320
193320
203320
213320
223320
233320
243420
253420
263420
273420
283420
293420
303420

How September really feels in Ambilobe

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ambilobe weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°42227.912.72.5
Feb31° / 23°35825.412.42.5
Mar32° / 23°24824.112.12.6
Apr33° / 22°711311.73.3
May33° / 21°193.911.44.4
Jun32° / 19°7211.25.2
Jul31° / 18°92.111.35.3
Aug32° / 19°92.211.65.0
Sep33° / 20°9311.94.3
Oct34° / 21°235.812.33.4
Nov34° / 22°7012.512.62.8
Dec33° / 23°2452312.82.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 15%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18317
28317
38317
48317
58218
68218
78218
88218
98218
108218
118218
128317
138416
148416
158416
168416
178515
188614
198614
208614
218713
228713
238713
248713
258713
268713
278713
288713
298713
308614

Chance of precipitation in September

Any precipitation

Ambilobe gets around 9 mm of rain over 3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 10% and peaks near 13% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
19
28
38
48
58
69
79
89
99
109
119
129
139
149
159
169
179
1810
1910
2010
2111
2211
2311
2411
2511
2612
2712
2812
2913
3013

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18533450
27533550
37523560
47513660
57503760
66513760
76503860
86503860
95493960
105493970
115494070
124494070
134484070
144484180
154484180
164474180
174464290
184454290
193444390
2034344100
2134244100
2234145110
2334045110
2433946120
2533846120
2633746131
2733646141
2823547151
2923447161
3023347162

Wind in September

Winds average 8 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 5:51 AM to 5:30 AM, and sunset from 5:36 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:515:36
211.85:515:36
311.85:505:36
411.85:495:36
511.85:485:36
611.85:485:36
711.85:475:36
811.85:465:36
911.85:465:36
1011.95:455:36
1111.95:445:36
1211.95:435:36
1311.95:435:36
1411.95:425:36
1511.95:415:36
1611.95:405:36
1711.95:405:36
1812.05:395:36
1912.05:385:36
2012.05:375:36
2112.05:375:36
2212.05:365:36
2312.05:355:36
2412.05:345:36
2512.05:345:36
2612.15:335:36
2712.15:325:36
2812.15:315:36
2912.15:315:36
3012.15:305:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.46 kWh/m².

For context, solar energy here swings from a low near 4.84 kWh/m² to a high of 6.91 kWh/m² in October across the year — September's 6.46 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.2Intense
66.2Intense
76.2Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.4Intense
136.4Intense
146.4Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.8Intense
Planning a trip in September

Hazard calendar for Ambilobe

In seasonPeak

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

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

Ambilobe'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 September a good time to visit Ambilobe?

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

4.3
Sightseeing
5th-best month of the year
7.6
Beach & pool
4th-best month of the year

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

What to pack for Ambilobe in September

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

In September, Ambilobe sees daytime highs around 33°C and nights near 20°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Ambilobe in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in April at about 30°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
Apr30Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug26Warm
Sep27Warm
Oct27Warm
Nov28Tropical
Dec29Tropical

UV index in Ambilobe in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ambilobe peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 highExtremeFeb 12UV 15Jun 21UV 9
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Ambilobe in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Ambilobe is worst in November — around 23 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (July, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1223 µg/m³Jul 156 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr7Good
May6Good
Jun6Good
Jul6Good
Aug6Good
Sep12Good
Oct20Moderate
Nov23Moderate
Dec10Good
Location & terrain

Where is Ambilobe?

Ambilobe sits at 13.2°S, 49.0°E, 31 m above sea level, in Madagascar. The nearest listed city is Antsohimbondrona, 25 km away.

Hell-VilleAntsirananaIharan̈aBealananaMaromandia

Topography around Ambilobe

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

Within 3 km, the terrain around Ambilobe has only modest variations in elevation — a maximum elevation change of 166 m around an average of 43 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 503 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,357 m.

The land around Ambilobe is covered by grassland (54%) within 3 km, grassland (62%) within 16 km, and grassland (44%), water (25%) and trees (24%) within 80 km.

3 km
166 m
16 km
503 m
80 km
2,357 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Antsohimbondrona 25 km · Ambarakaraka 39 km · Ambanja 83 km · Hell-Ville 88 km · Antsiranana 102 km · Iharan̈a 104 km · Bealanana 153 km · Maromandia 154 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 Ambilobe (-13.2°, 49.05°, elevation 31 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. 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).