Tôlanaro weather in September

In September, Tôlanaro sees average daytime highs of 24°C and overnight lows near 19°C, with 41 mm of rain across 6 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 12th-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 65% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Tôlanaro's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Tôlanaro's year-round climate.

Daytime high
24°
9th warmest
Overnight low
19°
4th coldest
Rainfall
41 mm
6 wet days
Daylight
11 h 54 min
5:51 AM – 5:42 PM
Cloud cover
32%
2nd clearest
Wind
20 km/h
2nd windiest
Solar energy
5.6 kWh/m²
Travel score
8.1
out of 10

Tôlanaro is city 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 24°C through the month.

A typical September day in Tôlanaro reaches about 24°C in the afternoon and slips back to 19°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12318
22318
32318
42418
52418
62418
72418
82418
92418
102419
112419
122419
132419
142419
152419
162419
172419
182419
192419
202419
212419
222419
232419
242419
252419
262519
272519
282519
292519
302519

Tôlanaro 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
Jan28° / 23°17416.613.45.5
Feb28° / 24°18415.612.95.4
Mar27° / 23°14014.812.25.9
Apr26° / 22°10113.611.46.3
May24° / 20°7411.410.87.1
Jun23° / 18°498.710.57.4
Jul22° / 18°52910.67.3
Aug23° / 18°467.211.17.8
Sep24° / 19°41611.88.1
Oct25° / 20°689.512.67.3
Nov26° / 21°841113.26.6
Dec27° / 23°12914.813.55.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 21%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18317
28416
38416
48416
58416
68317
78218
88218
98119
108119
118020
127921
137921
147822
157822
167822
177723
187723
197723
207624
217624
227624
237525
247624
257525
267525
277624
287525
297525
307525

Chance of precipitation in September

Any precipitation

Tôlanaro gets around 41 mm of rain over 6 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 21% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
120
220
319
419
518
618
718
818
918
1018
1118
1219
1319
1419
1520
1620
1720
1821
1921
2021
2122
2222
2322
2423
2523
2624
2724
2824
2924
3025

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
18206012
27206112
37206013
47205914
57196014
67195915
77195816
87195717
97195618
107195519
117195420
127185421
137185322
147175224
157175125
167165027
176165028
186154930
196144831
206144833
215134735
225134636
234124538
244114540
254114442
263104343
273104244
283104246
29394147
30394048

Wind in September

Winds average 20 km/h in September.

Across September, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
320light breeze
420light breeze
520light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2720breezy
2820breezy
2920breezy
3020breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over September. Sunrise moves from 6:07 AM to 5:35 AM, and sunset from 5:36 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:075:36
211.56:065:37
311.56:055:37
411.66:045:38
511.66:035:38
611.66:025:38
711.66:015:39
811.76:005:39
911.75:595:39
1011.75:575:40
1111.75:565:40
1211.85:555:41
1311.85:545:41
1411.85:535:41
1511.85:525:42
1611.95:515:42
1711.95:505:42
1811.95:485:43
1911.95:475:43
2012.05:465:44
2112.05:455:44
2212.05:445:44
2312.05:435:45
2412.15:425:45
2512.15:415:46
2612.15:405:46
2712.15:385:46
2812.25:375:47
2912.25:365:47
3012.25:355:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.6 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.85 kWh/m² in December across the year — September's 5.6 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.8Bright
225.8Bright
235.8Bright
245.9Bright
255.9Bright
265.9Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Tôlanaro

In seasonPeak

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

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

Tôlanaro's rainy season runs November–April, when most of the year's rain falls.

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

Is September a good time to visit Tôlanaro?

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

8.1
Sightseeing
1st-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Tôlanaro in September

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

In September, Tôlanaro sees daytime highs around 24°C and nights near 19°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Tôlanaro in September

The nearest coast averages about 22°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 15 km away) is warmest in February at about 26°C and coldest in August near 22°C.

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

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr25Warm
May24Warm
Jun23Refreshing
Jul23Refreshing
Aug22Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Refreshing
Dec25Warm

UV index in Tôlanaro in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tôlanaro peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 14Jun 20UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5High
Aug7High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Tôlanaro?

Tôlanaro sits at 25.0°S, 47.0°E, 27 m above sea level, in Madagascar. The nearest listed city is Amboasary, 60 km away.

AmbovombeJafaroTsiombeVohipahoBekilyBelohaVangaindrano

Topography around Tôlanaro

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

Within 3 km, the terrain around Tôlanaro has significant variations in elevation — a maximum elevation change of 432 m around an average of 21 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 795 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,959 m.

The land around Tôlanaro is covered by water (53%) within 3 km, water (56%) within 16 km, and water (42%), grassland (22%) and trees (20%) within 80 km.

3 km
432 m
16 km
795 m
80 km
1,959 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Amboasary 60 km · Ambovombe 92 km · Jafaro 148 km · Tsiombe 154 km · Vohipaho 173 km · Bekily 191 km · Beloha 195 km · Vangaindrano 197 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 Tôlanaro (-25.0325°, 46.9833°, 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).