Betioky weather in December

In December, Betioky sees average daytime highs of 34°C and overnight lows near 23°C, with 100 mm of rain across 12.7 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 43% 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 24 min by month's end. Set against the rest of the year, December is Betioky's 10th-clearest and 11th-windiest month. For the whole year in context, see Betioky's year-round climate.

Daytime high
34°
2nd warmest
Overnight low
23°
10th coldest
Rainfall
100 mm
12.7 wet days
Daylight
13 h 30 min
5:15 AM – 6:42 PM
Cloud cover
47%
10th clearest
Wind
10 km/h
11th windiest
Solar energy
7.24 kWh/m²
Travel score
3.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical December day in Betioky reaches about 34°C in the afternoon and slips back to 23°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 37°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)
13422
23422
33422
43422
53422
63422
73422
83422
93422
103423
113423
123423
133423
143423
153423
163423
173423
183423
193423
203423
213423
223423
233423
243423
253423
263423
273423
283423
293423
303423
313423

How December really feels in Betioky

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.

Betioky 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
Jan33° / 23°19117.413.32.9
Feb33° / 23°11413.512.83.1
Mar33° / 23°629.412.23.5
Apr32° / 21°224.211.54.7
May30° / 18°51.410.96.7
Jun28° / 16°30.910.68.5
Jul27° / 15°30.610.78.8
Aug29° / 16°30.611.27.5
Sep32° / 17°40.811.95.7
Oct33° / 20°152.912.64.1
Nov34° / 22°356.213.13.3
Dec34° / 23°10012.713.43.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 27% of December, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37426
47327
57327
67327
77228
87228
97228
107129
117129
127129
137030
147030
157030
167030
177030
186931
197030
207030
217030
227030
237030
246931
256832
266832
276733
286634
296634
306535
316535

Chance of precipitation in December

Any precipitation

Betioky gets around 100 mm of rain over 12.7 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 41% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
131
231
332
432
533
634
734
835
936
1037
1138
1239
1340
1441
1542
1642
1743
1843
1944
2045
2145
2246
2346
2447
2548
2648
2749
2849
2949
3050
3150

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131736378
221635379
3216343810
4215333911
5215333912
6214324013
7213314014
8212304115
9211304216
10211294217
11110284318
1219284319
1318274420
1418264421
1518254422
1617254423
1717244424
1817234325
1917234326
2017224327
2117214228
2217214229
2317204230
2417194131
2517194133
2616184133
2716184134
2816174135
2915174136
3015164136
3115164237

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
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 5:11 AM to 5:22 AM, and sunset from 6:33 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:116:33
213.45:126:34
313.45:126:34
413.45:126:35
513.45:126:36
613.45:126:36
713.45:126:37
813.45:136:38
913.45:136:38
1013.45:136:39
1113.45:136:39
1213.45:146:40
1313.45:146:41
1413.45:146:41
1513.55:156:42
1613.55:156:42
1713.55:156:43
1813.55:166:43
1913.55:166:44
2013.55:176:44
2113.55:176:45
2213.55:186:45
2313.55:186:46
2413.55:186:46
2513.55:196:47
2613.55:206:47
2713.55:206:48
2813.55:216:48
2913.55:216:48
3013.45:226:49
3113.45:226:49

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.24 kWh/m².

For context, solar energy here swings from a low near 4.05 kWh/m² to a high of 7.42 kWh/m² in November across the year — December's 7.24 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.2Intense
217.2Intense
227.2Intense
237.2Intense
247.2Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.0Intense
317.0Intense
Planning a trip in December

Hazard calendar for Betioky

In seasonPeak

In December, Betioky sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Betioky's monsoon runs December–February, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Betioky?

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

3.0
Sightseeing
11th-best month of the year
5.8
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Betioky.

What to pack for Betioky in December

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

In December, Betioky sees daytime highs around 34°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

UV index in Betioky in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Betioky peaks around January 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 24UV 14Jun 20UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme
Location & terrain

Where is Betioky?

Betioky sits at 23.7°S, 44.4°E, 257 m above sea level, in Madagascar. The nearest listed city is Anakao, 75 km away.

ToliaraSakarahaBekilyAmpanihyItampoloAnkazoaboBeloha

Topography around Betioky

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

Within 3 km, the terrain around Betioky has only modest variations in elevation — a maximum elevation change of 94 m around an average of 249 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 304 m; within 80 km, large variations in elevation — a maximum elevation change of 832 m.

The land around Betioky is covered by grassland (59%) and shrubs (23%) within 3 km, shrubs (44%) and grassland (31%) within 16 km, and shrubs (48%) and grassland (35%) within 80 km.

3 km
94 m
16 km
304 m
80 km
832 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Anakao 75 km · Toliara 84 km · Sakaraha 93 km · Bekily 110 km · Ampanihy 114 km · Itampolo 116 km · Ankazoabo 160 km · Beloha 174 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 Betioky (-23.7206°, 44.3807°, elevation 257 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).