Didy weather in September

In September, Didy sees average daytime highs of 23°C and overnight lows near 13°C, with 17 mm of rain across 6.3 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 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Didy's 2nd-clearest and 4th-windiest month. For the whole year in context, see Didy's year-round climate.

Daytime high
23°
9th warmest
Overnight low
13°
3rd coldest
Rainfall
17 mm
6.3 wet days
Daylight
11 h 54 min
5:43 AM – 5:37 PM
Cloud cover
54%
2nd clearest
Wind
10 km/h
4th windiest
Solar energy
5.14 kWh/m²
Travel score
7.5
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 24°C by the end.

A typical September day in Didy reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°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)
12213
22213
32213
42213
52213
62213
72313
82313
92313
102313
112313
122313
132313
142313
152313
162313
172313
182413
192413
202413
212413
222413
232413
242413
252414
262414
272414
282414
292414
302414

Didy 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
Jan27° / 19°27424.2134.2
Feb27° / 19°25422.712.64.1
Mar27° / 19°18121.112.14.7
Apr26° / 17°5614.311.65.9
May24° / 16°3510.111.26.8
Jun22° / 13°258.710.96.6
Jul21° / 12°3210116.3
Aug21° / 12°238.811.46.7
Sep23° / 13°176.311.97.5
Oct26° / 15°28712.47.3
Nov28° / 17°6110.912.96.2
Dec28° / 18°17618.713.14.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34357
44357
54555
64555
74654
84654
94753
104951
115050
125050
135149
145149
155149
165347
175347
185347
195248
205347
215347
225347
235347
245347
255446
265446
275446
285545
295545
305644

Chance of precipitation in September

Any precipitation

Didy gets around 17 mm of rain over 6.3 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 21% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
326
426
526
626
725
825
925
1024
1124
1223
1322
1422
1521
1620
1720
1819
1919
2018
2118
2217
2317
2417
2516
2616
2716
2817
2917
3017

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
157421
256431
355441
453452
553452
652462
751472
851472
950482
1049493
1148493
1247503
1346513
1444533
1543543
1642544
1741554
1840564
1939574
2037594
2136604
2235614
2334615
2433625
2532626
2631627
2730637
2829638
2928639
30276310

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 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 30 minutes over September. Sunrise moves from 5:56 AM to 5:31 AM, and sunset from 5:35 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:565:35
211.75:565:35
311.75:555:35
411.75:545:35
511.75:535:35
611.75:525:36
711.75:515:36
811.85:505:36
911.85:495:36
1011.85:495:36
1111.85:485:36
1211.85:475:37
1311.85:465:37
1411.95:455:37
1511.95:445:37
1611.95:435:37
1711.95:425:37
1811.95:415:37
1912.05:415:38
2012.05:405:38
2112.05:395:38
2212.05:385:38
2312.05:375:38
2412.05:365:38
2512.15:355:39
2612.15:345:39
2712.15:335:39
2812.15:335:39
2912.15:325:39
3012.15:315:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.14 kWh/m².

For context, solar energy here swings from a low near 3.28 kWh/m² to a high of 6.34 kWh/m² in November across the year — September's 5.14 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Didy

In seasonPeak

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

Didy'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 Didy?

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

7.5
Sightseeing
1st-best month of the year
5.9
Beach & pool
3rd-best month of the year

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

What to pack for Didy in September

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

In September, Didy sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Didy 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 Didy peaks around February 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 18UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7High
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec15Extreme

Air quality in Didy 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 Didy is worst in November — around 29 µg/m³ PM2.5 (moderate), about 4.6× the cleanest month (February, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 929 µg/m³Feb 166 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar7Good
Apr7Good
May9Good
Jun8Good
Jul7Good
Aug8Good
Sep10Good
Oct28Moderate
Nov29Moderate
Dec10Good
Location & terrain

Where is Didy?

Didy sits at 18.1°S, 48.5°E, 1,033 m above sea level, in Madagascar. The nearest listed city is Ambatondrazaka, 34 km away.

ToamasinaAmpasimanolotraMoramangaVohibinany

Topography around Didy

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

Within 3 km, the terrain around Didy has only modest variations in elevation — a maximum elevation change of 172 m around an average of 1,039 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 602 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,569 m.

The land around Didy is covered by cropland (70%) within 3 km, trees (53%) and grassland (32%) within 16 km, and trees (45%) and grassland (37%) within 80 km.

3 km
172 m
16 km
602 m
80 km
1,569 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Ambatondrazaka 34 km · Amparafaravola 67 km · Imerimandroso 76 km · Anjozorobe 77 km · Toamasina 92 km · Ampasimanolotra 96 km · Moramanga 98 km · Vohibinany 100 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 Didy (-18.1167°, 48.5333°, elevation 1,033 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).