Sambava weather in September

In September, Sambava sees average daytime highs of 25°C and overnight lows near 21°C, with 88 mm of rain across 20.2 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 54% 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 Sambava's 2nd-clearest and 4th-windiest month. For the whole year in context, see Sambava's year-round climate.

Daytime high
25°
10th warmest
Overnight low
21°
3rd coldest
Rainfall
88 mm
20.2 wet days
Daylight
11 h 54 min
5:36 AM – 5:31 PM
Cloud cover
41%
2nd clearest
Wind
23 km/h
4th windiest
Solar energy
5.18 kWh/m²
Travel score
5.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical September day in Sambava reaches about 25°C in the afternoon and slips back to 21°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 25°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12421
22421
32421
42421
52421
62421
72421
82421
92421
102421
112421
122421
132421
142421
152421
162421
172521
182522
192522
202522
212522
222522
232522
242522
252522
262522
272522
282522
292522
302522

How September really feels in Sambava

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.

Sambava weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°26826.712.73.6
Feb28° / 25°26423.812.53.6
Mar28° / 25°30525.312.13.9
Apr28° / 25°19922.511.74.7
May27° / 24°12020.711.35.3
Jun25° / 22°12721.211.25.3
Jul24° / 21°13722.611.25.2
Aug24° / 21°10922.311.55.3
Sep25° / 21°8820.211.95.6
Oct26° / 23°892012.35.6
Nov27° / 24°8518.512.75.5
Dec28° / 25°17923.512.84.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 29% of September, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38218
48218
58218
68218
78218
88218
98218
108218
118218
128218
138218
148317
158317
168317
178317
188317
198416
208416
218416
228515
238515
248515
258515
268614
278614
288614
298614
308713

Chance of precipitation in September

Any precipitation

Sambava gets around 88 mm of rain over 20.2 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 67% and peaks near 70% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
170
270
370
470
570
669
769
869
968
1068
1168
1268
1367
1467
1567
1667
1766
1866
1966
2065
2165
2265
2365
2465
2566
2666
2766
2866
2966
3066

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1130681
2130681
3129691
4129691
5128701
6128701
7127711
8127711
9127711
10127711
11127711
12126721
13026731
14026731
15025732
16025732
17024742
18023752
19023752
20022762
21022762
22021763
23020773
24020773
25019774
26018775
27017785
28017776
29016777
30016768

Wind in September

Winds average 23 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
424breezy
524breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy

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 5:47 AM to 5:25 AM, and sunset from 5:31 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:475:31
211.75:475:31
311.75:465:31
411.85:455:31
511.85:445:31
611.85:445:31
711.85:435:31
811.85:425:31
911.85:415:31
1011.85:415:31
1111.95:405:31
1211.95:395:31
1311.95:385:31
1411.95:385:31
1511.95:375:31
1611.95:365:31
1711.95:355:31
1811.95:345:31
1912.05:345:31
2012.05:335:31
2112.05:325:31
2212.05:315:32
2312.05:315:32
2412.05:305:32
2512.05:295:32
2612.15:285:32
2712.15:285:32
2812.15:275:32
2912.15:265:32
3012.15:255:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.18 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.22 kWh/m² in November across the year — September's 5.18 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Sambava

In seasonPeak

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

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

Sambava's rainy season runs July–July, 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 Sambava?

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

5.6
Sightseeing
1st-best month of the year
4.9
Beach & pool
5th-best month of the year

September is a reasonable time to visit Sambava for sightseeing.

What to pack for Sambava in September

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

In September, Sambava sees daytime highs around 25°C and nights near 21°C. Pack rain gear. Worth having: light clothes, sun protection and a windbreaker. About 20 days see rain.

rain gearlight clothessun protectiona windbreaker

Sea temperature near Sambava in September

The nearest coast averages about 25°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 25 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
Jul25Warm
Aug24Warm
Sep25Warm
Oct25Warm
Nov27Warm
Dec28Warm

UV index in Sambava 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 Sambava peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 23UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May10Very high
Jun8Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Sambava?

Sambava sits at 14.3°S, 50.2°E, 10 m above sea level, in Madagascar. The nearest listed city is Ampahana, 54 km away.

Iharan̈aMaroantsetraBealananaAmbarakarakaAmbilobe

Topography around Sambava

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

Within 3 km, the terrain around Sambava has only modest variations in elevation — a maximum elevation change of 111 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 337 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,083 m.

The land around Sambava is covered by water (44%) and trees (24%) within 3 km, water (50%) and trees (32%) within 16 km, and trees (45%) and water (35%) within 80 km.

3 km
111 m
16 km
337 m
80 km
2,083 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Ampahana 54 km · Andapa 70 km · Antalaha 71 km · Iharan̈a 104 km · Maroantsetra 138 km · Bealanana 156 km · Ambarakaraka 164 km · Ambilobe 169 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 Sambava (-14.2667°, 50.1667°, elevation 10 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).