Amboanjo weather in September

In September, Amboanjo sees average daytime highs of 26°C and overnight lows near 18°C, with 44 mm of rain across 9.8 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 27°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Amboanjo's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Amboanjo's year-round climate.

Daytime high
26°
9th warmest
Overnight low
18°
4th coldest
Rainfall
44 mm
9.8 wet days
Daylight
11 h 54 min
5:47 AM – 5:39 PM
Cloud cover
50%
3rd clearest
Wind
9 km/h
3rd windiest
Solar energy
5.01 kWh/m²
Travel score
6.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 25°C in the first days to 27°C by the end.

A typical September day in Amboanjo reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12517
22517
32517
42517
52517
62517
72517
82517
92517
102617
112617
122617
132617
142617
152618
162618
172618
182618
192618
202618
212618
222718
232718
242718
252718
262718
272718
282718
292719
302719

How September really feels in Amboanjo

Once humidity and wind are folded in, September 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

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

Amboanjo weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°36125.413.23.1
Feb30° / 23°31623.912.83.1
Mar29° / 23°28024.912.23.5
Apr28° / 21°16020.511.54.6
May26° / 19°11617.8115.7
Jun24° / 17°7013.510.76.5
Jul23° / 16°8414.710.86.4
Aug24° / 16°5112.111.26.9
Sep26° / 18°449.811.96.8
Oct28° / 20°7711.512.56.0
Nov29° / 22°11514.513.14.7
Dec30° / 23°19120.513.33.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36733
46733
56733
66634
76634
86436
96337
106337
116238
126139
136040
146040
155941
165941
175941
185941
195941
205941
215941
225941
236040
246139
256139
266139
276139
286238
296139
306139

Chance of precipitation in September

Any precipitation

Amboanjo gets around 44 mm of rain over 9.8 wet days in September, the driest month. 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 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
338
438
537
637
736
835
935
1034
1134
1233
1333
1433
1532
1632
1732
1832
1932
2032
2131
2231
2331
2430
2530
2630
2730
2830
2930
3030

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111765170
211666170
311665180
411665180
511664190
611664190
711564200
811564200
911563210
1011562220
1111561230
1211560240
1311559250
1401459270
1501359280
1601357300
1701256320
1801156330
1901154350
2001054360
210952381
220951391
230850411
240849421
250748431
260748441
270647451
280646462
290645472
300644472

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:02 AM to 5:33 AM, and sunset from 5:35 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:025:35
211.66:015:35
311.66:005:36
411.65:595:36
511.65:585:36
611.75:575:36
711.75:565:37
811.75:555:37
911.75:545:37
1011.75:535:38
1111.85:525:38
1211.85:515:38
1311.85:505:38
1411.85:495:39
1511.95:485:39
1611.95:475:39
1711.95:465:39
1811.95:455:40
1911.95:445:40
2012.05:435:40
2112.05:425:41
2212.05:415:41
2312.05:405:41
2412.05:395:41
2512.15:385:42
2612.15:375:42
2712.15:365:42
2812.15:355:43
2912.25:345:43
3012.25:335:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.01 kWh/m².

For context, solar energy here swings from a low near 3.21 kWh/m² to a high of 6.05 kWh/m² in December across the year — September's 5.01 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.1Bright
225.2Bright
235.2Bright
245.2Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
Planning a trip in September

Hazard calendar for Amboanjo

In seasonPeak

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

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

Amboanjo'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 Amboanjo?

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

6.8
Sightseeing
2nd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Amboanjo in September

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

In September, Amboanjo sees daytime highs around 26°C and nights near 18°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Amboanjo in September

The nearest coast averages about 24°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 32 km away) is warmest in February at about 28°C and coldest in August near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar28Tropical
Apr28Warm
May27Warm
Jun25Warm
Jul24Warm
Aug24Refreshing
Sep24Refreshing
Oct24Warm
Nov25Warm
Dec27Warm

UV index in Amboanjo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Amboanjo peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 12UV 16Jun 18UV 6
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Amboanjo 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 Amboanjo is worst in October — around 16 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (February, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 2016 µg/m³Feb 216 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb6Good
Mar6Good
Apr8Good
May12Good
Jun12Good
Jul11Good
Aug11Good
Sep10Good
Oct16Moderate
Nov14Moderate
Dec10Good
Location & terrain

Where is Amboanjo?

Amboanjo sits at 22.0°S, 47.9°E, 17 m above sea level, in Madagascar. The nearest listed city is Manakara, 23 km away.

FarafanganaAmbalavaoMananjaryFianarantsoa

Topography around Amboanjo

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

Within 3 km, the terrain around Amboanjo has only modest variations in elevation — a maximum elevation change of 144 m around an average of 36 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 363 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,990 m.

The land around Amboanjo is covered by trees (69%) within 3 km, trees (52%) and grassland (25%) within 16 km, and grassland (33%), trees (29%) and water (25%) within 80 km.

3 km
144 m
16 km
363 m
80 km
1,990 m
treesshrubsgrasslandcroplandwater
September weather nearby: Manakara 23 km · Vohipeno 39 km · Ikongo 45 km · Ifanadiana 81 km · Farafangana 91 km · Ambalavao 96 km · Mananjary 100 km · Fianarantsoa 100 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 Amboanjo (-22°, 47.85°, elevation 17 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).