Betafo weather in September

In September, Betafo sees average daytime highs of 25°C and overnight lows near 11°C, with 6 mm of rain across 1.6 wet days and about 11.9 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 65% 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 Betafo's 4th-clearest and 4th-windiest month. For the whole year in context, see Betafo's year-round climate.

Daytime high
25°
5th warmest
Overnight low
11°
4th coldest
Rainfall
6 mm
1.6 wet days
Daylight
11 h 54 min
5:50 AM – 5:44 PM
Cloud cover
28%
4th clearest
Wind
9 km/h
4th windiest
Solar energy
6.43 kWh/m²
Travel score
8.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical September day in Betafo reaches about 25°C in the afternoon and slips back to 11°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12410
22410
32410
42410
52410
62410
72410
82410
92411
102511
112511
122511
132511
142511
152511
162511
172511
182511
192611
202612
212612
222612
232612
242612
252612
262612
272612
282612
292612
302612

Betafo weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°40926.513.14.2
Feb25° / 16°34322.312.74.5
Mar25° / 16°21518.812.15.4
Apr25° / 14°6410.811.67.1
May23° / 12°162.811.18.3
Jun21° / 40.910.88.5
Jul21° / 41.110.98.5
Aug23° / 30.911.38.9
Sep25° / 11°61.611.98.8
Oct26° / 13°639.112.57.2
Nov26° / 15°16416.312.95.8
Dec25° / 16°30423.813.24.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 13%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58713
68713
78713
88812
98812
108812
118812
128812
138812
148812
158812
168812
178812
188812
198812
208812
218713
228713
238614
248614
258614
268614
278515
288416
298416
308416

Chance of precipitation in September

Any precipitation

Betafo gets around 6 mm of rain over 1.6 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 6% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
13
23
33
43
53
63
73
83
93
104
114
124
134
144
155
165
175
185
196
206
217
227
238
248
259
2610
2711
2811
2912
3013

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 (%)
11000
21000
31000
41000
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15982
16982
17982
18982
19982
20973
21973
22973
23964
24964
25955
26946
27946
28937
29928
30928

Wind in September

Winds average 9 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
149calm
159calm
169calm
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 6:04 AM to 5:37 AM, and sunset from 5:40 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:045:40
211.66:035:41
311.66:025:41
411.76:025:41
511.76:015:41
611.76:005:41
711.75:595:42
811.75:585:42
911.85:575:42
1011.85:565:42
1111.85:555:43
1211.85:545:43
1311.85:535:43
1411.85:525:43
1511.95:515:43
1611.95:505:44
1711.95:495:44
1811.95:485:44
1911.95:475:44
2012.05:465:44
2112.05:465:45
2212.05:455:45
2312.05:445:45
2412.05:435:45
2512.15:425:46
2612.15:415:46
2712.15:405:46
2812.15:395:46
2912.15:385:46
3012.25:375:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.43 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 6.89 kWh/m² in November across the year — September's 6.43 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Intense
36.0Intense
46.1Intense
56.1Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.4Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.8Intense
Planning a trip in September

Hazard calendar for Betafo

In seasonPeak

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

Betafo'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 Betafo?

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

8.8
Sightseeing
2nd-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Betafo in September

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

In September, Betafo sees daytime highs around 25°C and nights near 11°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Betafo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Betafo peaks around February 12 at about 17 (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 17Jun 17UV 7
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7High
Jul8Very high
Aug9Very high
Sep11Extreme
Oct13Extreme
Nov14Extreme
Dec15Extreme

Air quality in Betafo 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 Betafo is worst in August — around 23 µg/m³ PM2.5 (moderate), about 4.3× the cleanest month (January, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1123 µg/m³Jan 156 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb8Good
Mar10Good
Apr14Moderate
May23Moderate
Jun23Moderate
Jul23Moderate
Aug23Moderate
Sep19Moderate
Oct21Moderate
Nov13Moderate
Dec7Good
Location & terrain

Where is Betafo?

Betafo sits at 19.8°S, 46.9°E, 1,371 m above sea level, in Madagascar. The nearest listed city is Antsirabe, 20 km away.

Topography around Betafo

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

Within 3 km, the terrain around Betafo has significant variations in elevation — a maximum elevation change of 391 m around an average of 1,426 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,011 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,103 m.

The land around Betafo is covered by cropland (65%) and grassland (24%) within 3 km, cropland (51%) and grassland (47%) within 16 km, and grassland (68%) and cropland (29%) within 80 km.

3 km
391 m
16 km
1,011 m
80 km
2,103 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Antsirabe 20 km · Soanindrariny 41 km · Miandrarivo 46 km · Faratsiho 49 km · Antanifotsy 53 km · Fandriana 71 km · Soavinandriana 75 km · Ambatolampy 78 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 Betafo (-19.8333°, 46.85°, elevation 1,371 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).