Amboasary weather in December

In December, Amboasary sees average daytime highs of 32°C and overnight lows near 22°C, with 71 mm of rain across 12.9 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 37% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of December to 13 h 30 min by month's end. Set against the rest of the year, December is Amboasary's 10th-clearest and 8th-windiest month. For the whole year in context, see Amboasary's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
22°
9th coldest
Rainfall
71 mm
12.9 wet days
Daylight
13 h 30 min
5:04 AM – 6:37 PM
Cloud cover
51%
10th clearest
Wind
10 km/h
8th windiest
Solar energy
6.8 kWh/m²
Travel score
3.8
out of 10

Amboasary is human settlement in Anosy Region, Madagascar.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical December day in Amboasary reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 36°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13221
23221
33221
43221
53221
63221
73221
83221
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313223

How December really feels in Amboasary

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Amboasary weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°1241413.43.6
Feb32° / 23°10312.112.94.0
Mar31° / 22°6310.412.24.5
Apr30° / 20°367.411.45.8
May27° / 18°195.210.87.6
Jun26° / 16°133.510.58.4
Jul25° / 15°123.110.68.6
Aug27° / 15°112.711.18.3
Sep29° / 17°122.911.87.0
Oct31° / 19°215.112.65.5
Nov32° / 20°346.913.24.6
Dec32° / 22°7112.913.53.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36040
46040
55941
65842
75842
85842
95842
105842
115743
125842
135842
145842
155941
165941
176040
186139
196139
206139
216337
226337
236337
246337
256436
266337
276337
286337
296238
306139
316238

Chance of precipitation in December

Any precipitation

Amboasary gets around 71 mm of rain over 12.9 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
135
236
337
437
538
638
739
840
940
1041
1141
1242
1342
1442
1542
1642
1742
1842
1942
2042
2143
2243
2343
2444
2544
2644
2745
2845
2945
3046
3146

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
16255811
26245812
35235913
45225914
55225716
65215717
74205719
84205620
94195522
103185623
113175525
123175426
133165427
143155329
152155330
162145232
172145133
183135034
193134935
203124936
213114937
222114938
232104939
24294939
25284940
26284941
27274942
28274942
29264943
30264943
31264943

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 24 min at the start of December to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:01 AM to 5:12 AM, and sunset from 6:28 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:016:28
213.55:016:28
313.55:016:29
413.55:016:30
513.55:016:30
613.55:016:31
713.55:026:32
813.55:026:32
913.55:026:33
1013.55:026:34
1113.55:036:34
1213.55:036:35
1313.55:036:35
1413.55:036:36
1513.55:046:37
1613.55:046:37
1713.65:056:38
1813.65:056:38
1913.65:056:39
2013.65:066:39
2113.65:066:40
2213.65:076:40
2313.65:076:41
2413.65:086:41
2513.65:086:42
2613.65:096:42
2713.65:096:42
2813.55:106:43
2913.55:106:43
3013.55:116:43
3113.55:126:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.8 kWh/m².

For context, solar energy here swings from a low near 3.51 kWh/m² to a high of 6.81 kWh/m² in November across the year — December's 6.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.7Intense
316.7Intense
Planning a trip in December

Hazard calendar for Amboasary

In seasonPeak

In December, Amboasary sits inside its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.

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

Amboasary's rainy season runs December–March, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Amboasary?

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

3.8
Sightseeing
11th-best month of the year
6.1
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Amboasary. The water and warmth also suit a beach or pool day.

What to pack for Amboasary in December

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

In December, Amboasary sees daytime highs around 32°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

Sea temperature near Amboasary in December

The nearest coast averages about 25°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 26°C and coldest in August near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr25Warm
May24Warm
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Warm
Dec25Warm

UV index in Amboasary in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Amboasary peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 14Jun 20UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5High
Aug7High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Amboasary?

Amboasary sits at 25.0°S, 46.4°E, 22 m above sea level, in Madagascar. The nearest listed city is Ambovombe, 34 km away.

JafaroTsiombeBelohaBekilyAmpanihyBetroka

Topography around Amboasary

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

Within 3 km, the terrain around Amboasary has only modest variations in elevation — a maximum elevation change of 75 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 540 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,959 m.

The land around Amboasary is covered by shrubs (38%) and cropland (27%) within 3 km, shrubs (36%), cropland (23%) and trees (22%) within 16 km, and water (27%), shrubs (21%) and grassland (21%) within 80 km.

3 km
75 m
16 km
540 m
80 km
1,959 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ambovombe 34 km · Tôlanaro 60 km · Jafaro 88 km · Tsiombe 95 km · Beloha 135 km · Bekily 141 km · Ampanihy 169 km · Betroka 199 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 Amboasary (-25.0333°, 46.3833°, elevation 22 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).