Ampahana weather in September

In September, Ampahana sees average daytime highs of 25°C and overnight lows near 21°C, with 52 mm of rain across 14.1 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 12th-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 46% 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 Ampahana's 3rd-clearest and 4th-windiest month. For the whole year in context, see Ampahana's year-round climate.

Daytime high
25°
10th warmest
Overnight low
21°
3rd coldest
Rainfall
52 mm
14.1 wet days
Daylight
11 h 54 min
5:36 AM – 5:31 PM
Cloud cover
44%
3rd clearest
Wind
17 km/h
4th windiest
Solar energy
5.01 kWh/m²
Travel score
6.4
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 Ampahana reaches about 25°C in the afternoon and slips back to 21°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 26°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12521
22521
32521
42521
52521
62521
72521
82521
92521
102521
112521
122521
132521
142521
152521
162521
172521
182521
192521
202521
212521
222521
232521
242521
252521
262521
272521
282521
292621
302621

How September really feels in Ampahana

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.

Ampahana weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°21826.112.83.5
Feb29° / 25°21723.112.53.6
Mar28° / 25°23423.112.14.0
Apr28° / 24°12219.111.75.0
May27° / 23°6714.911.36.1
Jun25° / 22°7216.711.16.0
Jul24° / 21°8618.211.25.9
Aug24° / 21°6817.211.56.1
Sep25° / 21°5214.111.96.4
Oct26° / 22°5912.712.36.6
Nov27° / 23°5912.812.76.2
Dec28° / 24°1332012.94.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 35% of September, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
38020
48020
58119
68119
78119
88020
98020
108020
118020
127921
137921
147921
157921
167921
178020
188020
198020
208020
218119
228119
238119
248218
258218
268218
278218
288218
298218
308317

Chance of precipitation in September

Any precipitation

Ampahana gets around 52 mm of rain over 14.1 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 47% and peaks near 53% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
153
253
352
452
552
652
751
851
950
1049
1149
1248
1348
1447
1547
1646
1746
1845
1944
2044
2144
2243
2343
2443
2543
2643
2743
2844
2944
3044

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1253450
2251470
3250480
4249490
5248500
6247510
7246520
8245530
9244540
10243550
11243550
12242560
13141580
14141571
15140581
16139591
17138601
18137611
19136621
20135631
21135631
22134632
23133642
24132652
25131653
26130663
27129664
28128674
29127675
30127675

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light 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 5:48 AM to 5:25 AM, and sunset from 5:30 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:485:30
211.75:475:30
311.75:465:30
411.85:455:30
511.85:455:30
611.85:445:30
711.85:435:31
811.85:425:31
911.85:415:31
1011.85:415:31
1111.85:405:31
1211.95:395:31
1311.95:385:31
1411.95:375:31
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
2212.05:315:31
2312.05:305:31
2412.05:305:31
2512.05:295:32
2612.15:285:32
2712.15:275:32
2812.15:265:32
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 5.01 kWh/m².

For context, solar energy here swings from a low near 3.62 kWh/m² to a high of 6.09 kWh/m² in November across the year — September's 5.01 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
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
285.3Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Ampahana

In seasonPeak

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

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

Ampahana's rainy season runs December–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 Ampahana?

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

6.4
Sightseeing
2nd-best month of the year
5.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Ampahana for sightseeing.

What to pack for Ampahana in September

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

In September, Ampahana sees daytime highs around 25°C and nights near 21°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

Sea temperature near Ampahana 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 22 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 Ampahana 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 Ampahana peaks around January 21 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 21UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Ampahana 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 Ampahana is worst in December — around 22 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (September, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateDec 1521 µg/m³Sep 186 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb6Good
Mar7Good
Apr7Good
May7Good
Jun8Good
Jul7Good
Aug7Good
Sep6Good
Oct6Good
Nov14Moderate
Dec22Moderate
Location & terrain

Where is Ampahana?

Ampahana sits at 14.8°S, 50.2°E, 25 m above sea level, in Madagascar. The nearest listed city is Antalaha, 18 km away.

MaroantsetraIharan̈aBealananaMananaraBefandriana

Topography around Ampahana

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

Within 3 km, the terrain around Ampahana has only modest variations in elevation — a maximum elevation change of 182 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 310 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,083 m.

The land around Ampahana is covered by water (44%) and trees (39%) within 3 km, water (45%) and trees (37%) within 16 km, and trees (56%) and water (32%) within 80 km.

3 km
182 m
16 km
310 m
80 km
2,083 m
treesshrubsgrasslandcroplandbare terrainwater
September weather nearby: Antalaha 18 km · Sambava 54 km · Andapa 62 km · Maroantsetra 92 km · Iharan̈a 157 km · Bealanana 159 km · Mananara 165 km · Befandriana 188 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 Ampahana (-14.75°, 50.2167°, elevation 25 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).