Antalaha weather in December

In December, Antalaha sees average daytime highs of 30°C and overnight lows near 23°C, with 173 mm of rain across 22.8 wet days and about 12.9 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 16% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of December to 12 h 54 min by month's end. Set against the rest of the year, December is Antalaha's 9th-clearest and 10th-windiest month. For the whole year in context, see Antalaha's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
23°
9th coldest
Rainfall
173 mm
22.8 wet days
Daylight
12 h 54 min
5:09 AM – 6:01 PM
Cloud cover
68%
9th clearest
Wind
8 km/h
10th windiest
Solar energy
6 kWh/m²
Travel score
3.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Antalaha reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42923
52923
62923
72923
82923
92923
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Antalaha

Once humidity and wind are folded in, December averages 26 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
26
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.

Antalaha weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°29428.212.83.0
Feb30° / 23°27824.912.53.0
Mar29° / 23°25725.712.13.4
Apr29° / 23°12319.811.74.4
May27° / 21°6615.911.35.8
Jun26° / 20°5515.411.16.1
Jul25° / 19°6616.411.26.1
Aug25° / 19°531611.56.2
Sep26° / 19°4413.711.96.3
Oct27° / 20°5612.712.36.2
Nov29° / 22°7014.512.75.1
Dec30° / 23°17322.812.93.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34852
44852
54753
64654
74456
84456
94357
104357
114357
124258
134258
144060
154060
163961
173862
183862
193763
203664
213565
223466
233367
243169
253070
262971
272971
282773
292773
302674
312674

Chance of precipitation in December

Any precipitation

Antalaha gets around 173 mm of rain over 22.8 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 74% and peaks near 87% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
160
260
361
462
563
664
765
866
967
1068
1169
1270
1371
1472
1573
1674
1775
1876
1977
2078
2179
2280
2380
2481
2582
2683
2784
2885
2985
3086
3187

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1244540
2242560
3141580
4139600
5138610
6136630
7134641
8132661
9130681
10129691
11127711
12125731
13123751
14122761
15120772
16118792
17117802
18116812
19115822
20013852
21013843
22012853
23011863
24010864
25010864
2609865
2709856
2808866
2908857
3007858
3107849

Wind in December

Winds average 8 km/h in December.

Across December, 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.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 48 min at the start of December to 12 h 54 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 5:04 AM to 5:16 AM, and sunset from 5:53 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:045:53
212.85:045:54
312.85:045:54
412.85:055:55
512.85:055:55
612.85:055:56
712.95:065:57
812.95:065:57
912.95:065:58
1012.95:065:58
1112.95:075:59
1212.95:075:59
1312.95:086:00
1412.95:086:00
1512.95:086:01
1612.95:096:01
1712.95:096:02
1812.95:106:02
1912.95:106:03
2012.95:106:03
2112.95:116:04
2212.95:116:04
2312.95:126:05
2412.95:126:05
2512.95:136:06
2612.95:136:06
2712.95:146:07
2812.95:146:07
2912.95:156:07
3012.95:156:08
3112.95:166:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 6.07 kWh/m² in November across the year — December's 6 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Bright
196.0Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Antalaha

In seasonPeak

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

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

Antalaha'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 December a good time to visit Antalaha?

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

3.7
Sightseeing
9th-best month of the year
4.9
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Antalaha.

What to pack for Antalaha in December

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

In December, Antalaha sees daytime highs around 30°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Antalaha in December

The nearest coast averages about 28°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 29°C and coldest in August near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr28Tropical
May27Warm
Jun26Warm
Jul25Warm
Aug24Warm
Sep25Warm
Oct25Warm
Nov27Warm
Dec28Warm

UV index in Antalaha 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 Antalaha peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Antalaha in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Antalaha is worst in December — around 22 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (September, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateDec 1521 µg/m³Sep 186 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb6Good
Mar7Good
Apr7Good
May7Good
Jun8Good
Jul7Good
Aug7Good
Sep6Good
Oct6Good
Nov14Moderate
Dec22Moderate
Location & terrain

Where is Antalaha?

Antalaha sits at 14.9°S, 50.3°E, 13 m above sea level, in Madagascar. The nearest listed city is Ampahana, 18 km away.

MananaraBealananaIharan̈aBefandriana

Topography around Antalaha

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

Within 3 km, the terrain around Antalaha has only modest variations in elevation — a maximum elevation change of 138 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 530 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,083 m.

The land around Antalaha is covered by water (43%) and trees (37%) within 3 km, water (48%) and trees (39%) within 16 km, and trees (55%) and water (35%) within 80 km.

3 km
138 m
16 km
530 m
80 km
2,083 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Ampahana 18 km · Sambava 71 km · Andapa 73 km · Maroantsetra 83 km · Mananara 151 km · Bealanana 169 km · Iharan̈a 175 km · Befandriana 191 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 Antalaha (-14.9003°, 50.2788°, elevation 13 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. 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).