Ikongo weather in September

In September, Ikongo sees average daytime highs of 24°C and overnight lows near 16°C, with 65 mm of rain across 10.8 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 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 39% 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 Ikongo's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Ikongo's year-round climate.

Daytime high
24°
9th warmest
Overnight low
16°
4th coldest
Rainfall
65 mm
10.8 wet days
Daylight
11 h 54 min
5:48 AM – 5:41 PM
Cloud cover
49%
2nd clearest
Wind
7 km/h
3rd windiest
Solar energy
5.03 kWh/m²
Travel score
6.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 25°C by the end.

A typical September day in Ikongo reaches about 24°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°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)
12315
22315
32315
42315
52315
62315
72415
82415
92415
102415
112415
122415
132415
142415
152416
162416
172416
182416
192416
202516
212516
222516
232516
242516
252516
262516
272516
282516
292517
302517

Ikongo 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° / 22°44826.413.23.5
Feb28° / 21°39324.412.83.6
Mar28° / 21°32625.712.24.1
Apr26° / 19°18821.311.54.8
May24° / 17°13719115.7
Jun22° / 15°8613.510.76.3
Jul22° / 14°9614.210.86.1
Aug23° / 14°7112.411.26.6
Sep24° / 16°6510.811.96.9
Oct26° / 18°11713.912.56.2
Nov27° / 20°18117.2135.2
Dec28° / 21°28322.713.34.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26337
36337
46436
56436
66337
76337
86238
96139
106238
116139
126040
136040
145941
155941
165941
175842
185842
195842
205842
215842
225842
235842
245842
255941
265941
275842
285941
295941
305842

Chance of precipitation in September

Any precipitation

Ikongo gets around 65 mm of rain over 10.8 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 37% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
539
639
739
839
939
1038
1138
1238
1338
1437
1537
1637
1737
1836
1936
2036
2135
2235
2334
2434
2534
2633
2734
2834
2934
3034

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1443512
2443512
3442522
4441523
5440533
6439543
7438553
8437554
9436564
10435574
11434575
12333595
13332605
14331606
15330607
16329608
17328618
18227629
192256310
202246311
212236411
222226412
232226313
241216414
251206415
261196416
271186417
281176418
291176418
301166419

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:03 AM to 5:34 AM, and sunset from 5:37 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:035:37
211.66:025:37
311.66:015:37
411.66:005:38
511.65:595:38
611.75:585:38
711.75:575:38
811.75:565:39
911.75:555:39
1011.75:545:39
1111.85:535:40
1211.85:525:40
1311.85:515:40
1411.85:505:40
1511.95:495:41
1611.95:485:41
1711.95:475:41
1811.95:465:41
1911.95:455:42
2012.05:445:42
2112.05:435:42
2212.05:425:43
2312.05:415:43
2412.05:405:43
2512.15:395:43
2612.15:385:44
2712.15:375:44
2812.15:365:44
2912.25:355:45
3012.25:345:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.03 kWh/m².

For context, solar energy here swings from a low near 3.23 kWh/m² to a high of 5.83 kWh/m² in November across the year — September's 5.03 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
104.9Bright
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 Ikongo

In seasonPeak

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

Ikongo's monsoon runs December–March, when most of the year's rain falls.

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

Is September a good time to visit Ikongo?

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

6.9
Sightseeing
1st-best month of the year
5.9
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Ikongo for sightseeing.

What to pack for Ikongo in September

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

In September, Ikongo sees daytime highs around 24°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Ikongo 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 Ikongo 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 Ikongo 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 Ikongo is worst in October — around 22 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (February, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1721 µg/m³Feb 116 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar7Good
Apr10Good
May15Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct22Moderate
Nov16Moderate
Dec10Good
Location & terrain

Where is Ikongo?

Ikongo sits at 21.9°S, 47.4°E, 321 m above sea level, in Madagascar. The nearest listed city is Amboanjo, 45 km away.

IvohibeVondrozo

Topography around Ikongo

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

Within 3 km, the terrain around Ikongo has significant variations in elevation — a maximum elevation change of 445 m around an average of 314 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,182 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,614 m.

The land around Ikongo is covered by grassland (56%) within 3 km, trees (39%), grassland (32%) and shrubs (25%) within 16 km, and grassland (47%) and trees (31%) within 80 km.

3 km
445 m
16 km
1,182 m
80 km
2,614 m
treesshrubsgrasslandcroplandwater
September weather nearby: Amboanjo 45 km · Ambalavao 52 km · Fianarantsoa 60 km · Vohipeno 66 km · Manakara 66 km · Ifanadiana 68 km · Ivohibe 88 km · Vondrozo 105 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 Ikongo (-21.8833°, 47.4333°, elevation 321 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. 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).