Tsaratanana weather in September

In September, Tsaratanana sees average daytime highs of 27°C and overnight lows near 15°C, with 4 mm of rain across 1 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 67% of the time in September, and the air most often feels dry.

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

Daytime high
27°
8th warmest
Overnight low
15°
4th coldest
Rainfall
4 mm
1 wet days
Daylight
11 h 54 min
5:47 AM – 5:41 PM
Cloud cover
28%
1st clearest
Wind
15 km/h
4th windiest
Solar energy
6.31 kWh/m²
Travel score
8.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical September day in Tsaratanana reaches about 27°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°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°35°151015202530
Avg high (°C)Avg low (°C)
12614
22614
32614
42614
52614
62614
72614
82714
92714
102714
112714
122715
132715
142715
152715
162715
172715
182715
192815
202815
212815
222815
232815
242815
252815
262815
272815
282815
292816
302816

Tsaratanana weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°48226.512.93.8
Feb27° / 20°44524.412.63.8
Mar28° / 20°25119.912.14.6
Apr28° / 19°458.211.66.3
May27° / 17°152.611.28.0
Jun25° / 15°30.9118.8
Jul24° / 14°50.711.19.0
Aug25° / 14°20.511.48.9
Sep27° / 15°4111.98.3
Oct29° / 17°315.112.46.4
Nov30° / 19°12511.912.84.9
Dec29° / 20°29421.1134.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 12%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28713
38713
48713
58713
68713
78713
88713
98812
108812
118812
128911
138911
148911
158911
168911
178911
188911
198911
208911
218911
228911
238911
248911
258812
268812
278812
288812
298812
308812

Chance of precipitation in September

Any precipitation

Tsaratanana gets around 4 mm of rain over 1 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 4% and peaks near 7% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
63
73
83
93
103
113
123
133
143
153
163
173
183
193
204
214
224
234
244
255
265
276
286
297
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 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1821710
2821710
3811810
4801910
5792010
6782020
7772120
8762220
9752320
10752320
11742420
12732520
13722620
14712720
15692830
16682930
17673030
18673030
19653140
20643240
21643240
22633340
23633340
24613450
25613450
26593461
27593461
28573571
29573571
30563581

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light 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 5:59 AM to 5:35 AM, and sunset from 5:39 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:595:39
211.75:585:39
311.75:575:39
411.75:575:40
511.75:565:40
611.75:555:40
711.85:545:40
811.85:535:40
911.85:525:40
1011.85:525:40
1111.85:515:40
1211.85:505:40
1311.95:495:41
1411.95:485:41
1511.95:475:41
1611.95:475:41
1711.95:465:41
1811.95:455:41
1912.05:445:41
2012.05:435:41
2112.05:425:41
2212.05:415:42
2312.05:415:42
2412.05:405:42
2512.15:395:42
2612.15:385:42
2712.15:375:42
2812.15:365:42
2912.15:365:43
3012.15:355:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.31 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.89 kWh/m² in October across the year — September's 6.31 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.9Bright
35.9Bright
45.9Bright
56.0Bright
66.0Intense
76.0Intense
86.1Intense
96.1Intense
106.2Intense
116.2Intense
126.2Intense
136.3Intense
146.3Intense
156.3Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.7Intense
306.7Intense
Planning a trip in September

Hazard calendar for Tsaratanana

In seasonPeak

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

Tsaratanana'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 Tsaratanana?

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

8.3
Sightseeing
4th-best month of the year
8.5
Beach & pool
1st-best month of the year

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

What to pack for Tsaratanana in September

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

In September, Tsaratanana sees daytime highs around 27°C and nights near 15°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Tsaratanana 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 Tsaratanana peaks around February 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 16Jun 19UV 7
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec15Extreme

Air quality in Tsaratanana 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 Tsaratanana is worst in November — around 19 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (April, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1418 µg/m³Apr 134 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb5Good
Mar5Good
Apr4Good
May5Good
Jun6Good
Jul8Good
Aug8Good
Sep8Good
Oct13Moderate
Nov19Moderate
Dec9Good
Location & terrain

Where is Tsaratanana?

Tsaratanana sits at 16.8°S, 47.7°E, 349 m above sea level, in Madagascar. The nearest listed city is Mampikony, 78 km away.

MaevatananaAndilamenaAmbato BoenyAmparafaravolaImerimandrosoMarovoayBoriziny

Topography around Tsaratanana

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

Within 3 km, the terrain around Tsaratanana has only modest variations in elevation — a maximum elevation change of 100 m around an average of 353 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 914 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,394 m.

The land around Tsaratanana is covered by grassland (69%) and cropland (21%) within 3 km, grassland (85%) within 16 km, and grassland (93%) within 80 km.

3 km
100 m
16 km
914 m
80 km
1,394 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Mampikony 78 km · Maevatanana 89 km · Andilamena 101 km · Ambato Boeny 106 km · Amparafaravola 107 km · Imerimandroso 122 km · Marovoay 132 km · Boriziny 139 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 Tsaratanana (-16.7971°, 47.6516°, elevation 349 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).