Mananara weather in September

In September, Mananara sees average daytime highs of 23°C and overnight lows near 20°C, with 115 mm of rain across 23.2 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels muggy.

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 Mananara's 2nd-clearest and 4th-windiest month. For the whole year in context, see Mananara's year-round climate.

Daytime high
23°
10th warmest
Overnight low
20°
3rd coldest
Rainfall
115 mm
23.2 wet days
Daylight
11 h 54 min
5:38 AM – 5:33 PM
Cloud cover
49%
2nd clearest
Wind
14 km/h
4th windiest
Solar energy
5 kWh/m²
Travel score
4.9
out of 10

Mananara is commune in Madagascar.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical September day in Mananara reaches about 23°C in the afternoon and slips back to 20°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 24°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12320
22320
32320
42320
52320
62320
72320
82320
92320
102320
112320
122320
132320
142320
152320
162320
172320
182320
192320
202320
212320
222320
232320
242320
252321
262321
272321
282421
292421
302421

Mananara weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°29526.312.93.9
Feb28° / 25°32123.512.54.0
Mar27° / 24°31126.712.14.0
Apr26° / 24°19624.911.64.4
May25° / 22°16523.811.34.9
Jun23° / 21°17224.911.14.7
Jul22° / 20°19826.411.14.4
Aug22° / 20°14925.211.54.6
Sep23° / 20°11523.211.94.9
Oct24° / 21°11321.812.45.3
Nov26° / 23°10420.412.85.2
Dec27° / 24°19125.412.94.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 41% of September, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17327
27327
37327
47327
57327
67228
77228
87228
97327
107327
117327
127327
137327
147327
157426
167426
177525
187624
197624
207624
217624
227723
237723
247822
257921
267921
277921
287921
297921
307921

Chance of precipitation in September

Any precipitation

Mananara gets around 115 mm of rain over 23.2 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 77% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
181
281
381
481
580
680
779
878
978
1077
1177
1276
1376
1476
1576
1676
1775
1875
1975
2075
2175
2275
2376
2476
2576
2676
2776
2875
2975
3075

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 56% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1353440
2352450
3351460
4350470
5350480
6349480
7348490
8348490
9248500
10247510
11247510
12246520
13246520
14245530
15244540
16243550
17143560
18142570
19141571
20140581
21138601
22137611
23136621
24135631
25134632
26133642
27132652
28131653
29130663
30130654

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light 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

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 5:50 AM to 5:26 AM, and sunset from 5:31 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:505:31
211.75:495:31
311.75:495:31
411.75:485:31
511.75:475:32
611.85:465:32
711.85:455:32
811.85:455:32
911.85:445:32
1011.85:435:32
1111.85:425:32
1211.85:415:32
1311.95:405:32
1411.95:405:32
1511.95:395:32
1611.95:385:33
1711.95:375:33
1811.95:365:33
1912.05:355:33
2012.05:355:33
2112.05:345:33
2212.05:335:33
2312.05:325:33
2412.05:315:33
2512.15:305:33
2612.15:305:34
2712.15:295:34
2812.15:285:34
2912.15:275:34
3012.15:265:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5 kWh/m².

For context, solar energy here swings from a low near 3.45 kWh/m² to a high of 6.18 kWh/m² in November across the year — September's 5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Mananara

In seasonPeak

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

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

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

Is September a good time to visit Mananara?

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

4.9
Sightseeing
3rd-best month of the year
3.8
Beach & pool
9th-best month of the year

September is a reasonable time to visit Mananara for sightseeing.

What to pack for Mananara in September

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

In September, Mananara sees daytime highs around 23°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

Sea temperature near Mananara 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 13 km away) is warmest in February at about 29°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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr28Tropical
May27Warm
Jun26Warm
Jul24Warm
Aug24Refreshing
Sep24Warm
Oct26Warm
Nov27Warm
Dec28Tropical

UV index in Mananara 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 Mananara peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 9UV 15Jun 20UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Mananara 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 Mananara is worst in November — around 60 µg/m³ PM2.5 (unhealthy), about 14.0× the cleanest month (August, 4 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodPoorModerateNov 1755 µg/m³Aug 184 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb5Good
Mar5Good
Apr5Good
May6Good
Jun5Good
Jul5Good
Aug4Good
Sep5Good
Oct9Good
Nov60Unhealthy
Dec19Moderate
Location & terrain

Where is Mananara?

Mananara sits at 16.2°S, 49.8°E, 15 m above sea level, in Madagascar. The nearest listed city is Maroantsetra, 82 km away.

Soanierana IvongoAmbodifotatraAmbodimanga IIFenoarivo AtsinananaAntalahaVohibinanyVavatenina

Topography around Mananara

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

Within 3 km, the terrain around Mananara has only modest variations in elevation — a maximum elevation change of 44 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 516 m; within 80 km, large variations in elevation — a maximum elevation change of 1,160 m.

The land around Mananara is covered by water (38%) and trees (35%) within 3 km, water (48%) and trees (43%) within 16 km, and trees (48%) and water (41%) within 80 km.

3 km
44 m
16 km
516 m
80 km
1,160 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Maroantsetra 82 km · Soanierana Ivongo 85 km · Ambodifotatra 91 km · Ambodimanga II 138 km · Fenoarivo Atsinanana 140 km · Antalaha 151 km · Vohibinany 153 km · Vavatenina 156 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 Mananara (-16.1686°, 49.7662°, elevation 15 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).