Ambatolampy weather in September

In September, Ambatolampy sees average daytime highs of 21°C and overnight lows near 9°C, with 10 mm of rain across 2.8 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 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 50% 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 Ambatolampy's 1st-clearest and 6th-windiest month. For the whole year in context, see Ambatolampy's year-round climate.

Daytime high
21°
8th warmest
Overnight low
4th coldest
Rainfall
10 mm
2.8 wet days
Daylight
11 h 54 min
5:48 AM – 5:41 PM
Cloud cover
41%
1st clearest
Wind
8 km/h
6th windiest
Solar energy
5.95 kWh/m²
Travel score
7.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical September day in Ambatolampy reaches about 21°C in the afternoon and slips back to 9°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°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)
1208
2208
3208
4208
5208
6209
7209
8209
9209
10209
11219
12219
13219
14219
15219
16219
17219
18219
19229
20229
21229
22229
232210
242210
252210
262210
272210
282210
292210
302210

Ambatolampy 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
Jan24° / 15°31723.5134.6
Feb24° / 15°27721.112.74.7
Mar24° / 15°1801812.15.5
Apr23° / 13°5311.311.66.6
May21° / 11°235.711.17.0
Jun18° / 102.710.96.9
Jul17° / 113.210.96.5
Aug19° / 92.411.37.3
Sep21° / 102.811.97.9
Oct23° / 11°478.112.47.4
Nov24° / 13°11113.612.96.4
Dec25° / 15°24619.913.15.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36337
46337
56436
66436
76535
86535
96634
106733
116733
126832
136832
146931
156931
166931
176931
187030
197030
207030
217030
227129
237129
247228
257228
267129
277030
287030
297030
306931

Chance of precipitation in September

Any precipitation

Ambatolampy gets around 10 mm of rain over 2.8 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 10% and peaks near 14% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
18
28
38
49
59
69
79
89
99
109
119
129
139
149
159
169
1710
1810
1910
2010
2110
2210
2310
2410
2511
2611
2712
2813
2913
3014

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12982
13982
14982
15982
16982
17973
18973
19973
20973
21964
22964
23964
24955
25955
26955
27946
28946
29937
30937

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:02 AM to 5:35 AM, and sunset from 5:38 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:025:38
211.66:015:39
311.66:005:39
411.75:595:39
511.75:585:39
611.75:575:39
711.75:565:40
811.75:555:40
911.85:545:40
1011.85:545:40
1111.85:535:40
1211.85:525:41
1311.85:515:41
1411.95:505:41
1511.95:495:41
1611.95:485:41
1711.95:475:42
1811.95:465:42
1911.95:455:42
2012.05:445:42
2112.05:435:42
2212.05:425:43
2312.05:415:43
2412.05:405:43
2512.15:405:43
2612.15:395:43
2712.15:385:44
2812.15:375:44
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 5.95 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 6.63 kWh/m² in November across the year — September's 5.95 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.7Bright
105.7Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
156.0Bright
166.0Bright
176.0Intense
186.1Intense
196.1Intense
206.1Intense
216.2Intense
226.2Intense
236.2Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Ambatolampy

In seasonPeak

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

Ambatolampy'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 Ambatolampy?

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

7.9
Sightseeing
1st-best month of the year
4.8
Beach & pool
4th-best month of the year

September is one of the better times to visit Ambatolampy for general sightseeing.

What to pack for Ambatolampy in September

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

In September, Ambatolampy sees daytime highs around 21°C and nights near 9°C. Worth packing: sun protection.

sun protection

UV index in Ambatolampy 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 Ambatolampy peaks around February 12 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 12UV 16Jun 17UV 7
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7High
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec16Extreme

Air quality in Ambatolampy 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 Ambatolampy is worst in October — around 31 µg/m³ PM2.5 (moderate), about 5.3× the cleanest month (January, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1729 µg/m³Jan 166 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar12Good
Apr16Moderate
May24Moderate
Jun23Moderate
Jul22Moderate
Aug20Moderate
Sep17Moderate
Oct31Moderate
Nov18Moderate
Dec8Good
Location & terrain

Where is Ambatolampy?

Ambatolampy sits at 19.4°S, 47.4°E, 1,586 m above sea level, in Madagascar. The nearest listed city is Antanifotsy, 31 km away.

Topography around Ambatolampy

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

Within 3 km, the terrain around Ambatolampy has only modest variations in elevation — a maximum elevation change of 121 m around an average of 1,594 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,031 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,074 m.

The land around Ambatolampy is covered by cropland (63%) within 3 km, cropland (48%) and grassland (43%) within 16 km, and grassland (51%) and cropland (30%) within 80 km.

3 km
121 m
16 km
1,031 m
80 km
2,074 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Antanifotsy 31 km · Imerintsiatosika 46 km · Arivonimamo 48 km · Faratsiho 49 km · Antananarivo 54 km · Alarobia 57 km · Soanindrariny 61 km · Ambohidratrimo 63 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 Ambatolampy (-19.3833°, 47.4167°, elevation 1,586 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).