Imerimandroso weather in August

In August, Imerimandroso sees average daytime highs of 22°C and overnight lows near 13°C, with 10 mm of rain across 2.8 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 20% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 11 h 12 min at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is Imerimandroso's 5th-clearest and 2nd-windiest month. For the whole year in context, see Imerimandroso's year-round climate.

Daytime high
22°
11th warmest
Overnight low
13°
2nd coldest
Rainfall
10 mm
2.8 wet days
Daylight
11 h 24 min
6:08 AM – 5:32 PM
Cloud cover
60%
5th clearest
Wind
12 km/h
2nd windiest
Solar energy
4.03 kWh/m²
Travel score
7.6
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical August day in Imerimandroso reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, August runs on par with July and about 2°C cooler than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12113
22113
32113
42113
52113
62113
72113
82113
92113
102113
112113
122213
132213
142213
152213
162213
172213
182213
192213
202213
212213
222213
232213
242213
252213
262213
272213
282213
292213
302213
312213

Imerimandroso weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°28823.912.94.2
Feb27° / 20°25022.212.64.2
Mar27° / 19°16719.212.15.0
Apr26° / 18°449.911.66.6
May24° / 16°235.911.27.6
Jun22° / 14°123.3117.5
Jul21° / 13°143.411.17.3
Aug22° / 13°102.811.47.6
Sep23° / 14°82.211.98.2
Oct26° / 16°184.512.47.7
Nov28° / 17°488.712.86.6
Dec28° / 19°16517.3135.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63961
73961
83862
93862
103961
113961
123961
133961
144060
154060
164159
174159
184258
194258
204258
214357
224357
234258
244258
254258
264357
274357
284357
294357
304456
314357

Chance of precipitation in August

Any precipitation

Imerimandroso gets around 10 mm of rain over 2.8 wet days in August. 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 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
511
611
711
811
910
1010
1110
1210
1310
1410
1510
1610
179
189
199
209
219
228
238
248
258
268
278
288
298
308
318

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
150464
250464
350464
450464
551463
651463
751463
852462
951472
1051472
1150482
1251481
1350491
1449501
1549501
1648511
1748511
1848511
1948511
2048511
2147521
2247521
2347521
2446531
2546531
2646531
2745532
2845532
2945532
3044542
3144542

Wind in August

Winds average 12 km/h in August.

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

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 12 min at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over August. Sunrise moves from 6:15 AM to 5:57 AM, and sunset from 5:28 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:155:28
211.26:155:28
311.26:155:29
411.26:145:29
511.36:145:29
611.36:135:29
711.36:135:30
811.36:125:30
911.36:125:30
1011.36:115:31
1111.36:115:31
1211.46:105:31
1311.46:095:31
1411.46:095:32
1511.46:085:32
1611.46:085:32
1711.46:075:32
1811.46:065:32
1911.56:065:33
2011.56:055:33
2111.56:045:33
2211.56:035:33
2311.56:035:33
2411.56:025:34
2511.56:015:34
2611.66:005:34
2711.66:005:34
2811.65:595:34
2911.65:585:35
3011.65:575:35
3111.65:575:35

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.03 kWh/m².

For context, solar energy here swings from a low near 3.29 kWh/m² to a high of 6.32 kWh/m² in November across the year — August's 4.03 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.9Moderate
113.9Moderate
123.9Moderate
134.0Moderate
144.0Moderate
154.0Bright
164.0Bright
174.1Bright
184.1Bright
194.1Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.3Bright
254.3Bright
264.3Bright
274.4Bright
284.4Bright
294.4Bright
304.5Bright
314.5Bright
Planning a trip in August

Hazard calendar for Imerimandroso

In seasonPeak

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

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

Imerimandroso'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 August a good time to visit Imerimandroso?

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

7.6
Sightseeing
3rd-best month of the year
5.1
Beach & pool
9th-best month of the year

August is one of the better times to visit Imerimandroso for general sightseeing.

What to pack for Imerimandroso in August

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

In August, Imerimandroso sees daytime highs around 22°C and nights near 13°C. Little to plan around — just the basics.

UV index in Imerimandroso in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Imerimandroso peaks around February 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 18UV 7
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7High
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec15Extreme

Air quality in Imerimandroso in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Imerimandroso is worst in November — around 43 µg/m³ PM2.5 (poor), about 7.4× the cleanest month (January, 6 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateNov 1440 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr6Good
May8Good
Jun7Good
Jul7Good
Aug7Good
Sep8Good
Oct22Moderate
Nov43Poor
Dec10Good
Location & terrain

Where is Imerimandroso?

Imerimandroso sits at 17.4°S, 48.6°E, 755 m above sea level, in Madagascar. The nearest listed city is Amparafaravola, 42 km away.

Fenoarivo Atsinanana

Topography around Imerimandroso

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

Within 3 km, the terrain around Imerimandroso has only modest variations in elevation — a maximum elevation change of 138 m around an average of 769 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 703 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,522 m.

The land around Imerimandroso is covered by water (36%), cropland (34%) and grassland (24%) within 3 km, grassland (41%) and cropland (34%) within 16 km, and grassland (51%) and trees (32%) within 80 km.

3 km
138 m
16 km
703 m
80 km
1,522 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Amparafaravola 42 km · Andilamena 47 km · Ambatondrazaka 48 km · Vohibinany 49 km · Ambodimanga II 65 km · Vavatenina 66 km · Didy 76 km · Fenoarivo Atsinanana 88 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 Imerimandroso (-17.4333°, 48.5833°, elevation 755 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).