Ivato weather in September

In September, Ivato sees average daytime highs of 23°C and overnight lows near 11°C, with 5 mm of rain across 0.9 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels dry.

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 Ivato's 1st-clearest and 4th-windiest month. For the whole year in context, see Ivato's year-round climate.

Daytime high
23°
8th warmest
Overnight low
11°
4th coldest
Rainfall
5 mm
0.9 wet days
Daylight
11 h 54 min
5:48 AM – 5:41 PM
Cloud cover
37%
1st clearest
Wind
12 km/h
4th windiest
Solar energy
5.93 kWh/m²
Travel score
8.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 25°C by the end.

A typical September day in Ivato reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°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)
12211
22211
32211
42211
52211
62211
72211
82311
92311
102311
112311
122311
132311
142311
152311
162411
172411
182411
192411
202411
212412
222412
232412
242412
252412
262412
272412
282512
292512
302512

Ivato weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°34022.6134.6
Feb26° / 17°28920.812.64.6
Mar26° / 17°1651612.15.7
Apr25° / 15°367.511.67.4
May23° / 13°142.911.18.0
Jun20° / 11°50.910.97.9
Jul20° / 10°51117.6
Aug21° / 10°40.811.48.1
Sep23° / 11°50.911.98.7
Oct26° / 13°315.112.47.8
Nov27° / 15°9210.812.96.4
Dec27° / 17°2231813.15.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36832
46832
56931
67030
77030
87129
97129
107228
117228
127228
137426
147426
157525
167525
177525
187525
197624
207624
217624
227723
237723
247723
257723
267723
277723
287624
297624
307624

Chance of precipitation in September

Any precipitation

Ivato gets around 5 mm of rain over 0.9 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 3% and peaks near 7% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
143
153
163
173
184
194
204
214
224
234
245
255
265
276
286
296
307

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19730
29730
39730
49640
59640
69550
79550
89550
99460
109460
119370
129370
139280
149190
159190
1690100
1790100
1890100
1989110
2089110
2189110
2288120
2388120
2488120
2587130
2687130
2785141
2884151
2984151
3083161

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 6:01 AM to 5:35 AM, and sunset from 5:39 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:015:39
211.66:005:39
311.75:595:39
411.75:585:39
511.75:585:39
611.75:575:39
711.75:565:40
811.75:555:40
911.85:545:40
1011.85:535:40
1111.85:525:40
1211.85:515:41
1311.85:505:41
1411.95:495:41
1511.95:485:41
1611.95:485:41
1711.95:475:41
1811.95:465:42
1911.95:455:42
2012.05:445:42
2112.05:435:42
2212.05:425:42
2312.05:415:42
2412.05:405:43
2512.15:395:43
2612.15:385:43
2712.15:385:43
2812.15:375:43
2912.15:365:44
3012.25:355:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.93 kWh/m².

For context, solar energy here swings from a low near 3.83 kWh/m² to a high of 6.73 kWh/m² in November across the year — September's 5.93 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.7Bright
105.7Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Intense
186.0Intense
196.1Intense
206.1Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Ivato

In seasonPeak

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

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

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

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

Is September a good time to visit Ivato?

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

8.7
Sightseeing
1st-best month of the year
6.9
Beach & pool
2nd-best month of the year

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

What to pack for Ivato in September

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

In September, Ivato sees daytime highs around 23°C and nights near 11°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Ivato 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 Ivato peaks around February 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeFeb 11UV 16Jun 17UV 7
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7High
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec15Extreme

Air quality in Ivato 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 Ivato is worst in October — around 24 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1723 µg/m³Jan 157 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb9Good
Mar11Good
Apr14Moderate
May21Moderate
Jun22Moderate
Jul21Moderate
Aug18Moderate
Sep15Moderate
Oct24Moderate
Nov17Moderate
Dec8Good
Location & terrain

Where is Ivato?

Ivato sits at 18.8°S, 47.5°E, 1,273 m above sea level, in Madagascar. The nearest listed city is Ambohidratrimo, 6.0 km away.

Topography around Ivato

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

Within 3 km, the terrain around Ivato has only modest variations in elevation — a maximum elevation change of 70 m around an average of 1,263 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 485 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,888 m.

The land around Ivato is covered by cropland (42%), artificial surfaces (21%) and grassland (20%) within 3 km, cropland (43%) and grassland (41%) within 16 km, and grassland (67%) within 80 km.

3 km
70 m
16 km
485 m
80 km
1,888 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ambohidratrimo 6.0 km · Antananarivo 14 km · Ambohitrolomahitsy 24 km · Imerintsiatosika 27 km · Sadabe 29 km · Alarobia 32 km · Ankazondandy 33 km · Manjakandriana 36 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 Ivato (-18.8°, 47.4833°, elevation 1,273 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). 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).