Antsiranana weather in December

In December, Antsiranana sees average daytime highs of 31°C and overnight lows near 24°C, with 121 mm of rain across 15.3 wet days and about 12.7 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 28% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of December to 12 h 42 min by month's end. Set against the rest of the year, December is Antsiranana's 9th-clearest and 9th-windiest month. For the whole year in context, see Antsiranana's year-round climate.

Daytime high
31°
1st warmest
Overnight low
24°
10th coldest
Rainfall
121 mm
15.3 wet days
Daylight
12 h 42 min
5:17 AM – 6:01 PM
Cloud cover
62%
9th clearest
Wind
13 km/h
9th windiest
Solar energy
6 kWh/m²
Travel score
4.0
out of 10

Antsiranana is commune in Madagascar.

Density
3,261/km²
people per km²

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 31°C through the month.

A typical December day in Antsiranana reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, December runs on par with November and about 1°C warmer than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263024
273024
283024
293024
303024
313024

How December really feels in Antsiranana

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.

Antsiranana weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°24424.412.63.4
Feb29° / 24°22023.612.43.3
Mar30° / 24°15119.212.13.9
Apr31° / 24°45811.75.0
May30° / 23°121.911.46.2
Jun29° / 22°51.211.37.1
Jul28° / 21°61.311.37.8
Aug28° / 21°40.911.67.8
Sep29° / 21°30.711.97.4
Oct30° / 22°131.312.36.5
Nov31° / 23°314.212.65.5
Dec31° / 24°12115.312.74.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36337
46139
55941
65842
75743
85545
95446
105347
115149
125149
135050
144951
154951
164753
174753
184555
194456
204258
214159
223862
233862
243664
253466
263268
273268
283070
292872
302773
312575

Chance of precipitation in December

Any precipitation

Antsiranana gets around 121 mm of rain over 15.3 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 49% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
125
227
328
429
531
633
734
836
938
1040
1141
1243
1345
1447
1548
1650
1752
1853
1954
2056
2157
2259
2361
2462
2564
2666
2768
2869
2971
3072
3173

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 71% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1350470
2348490
3247510
4245530
5244540
6242560
7240580
8138610
9136630
10135640
11133660
12131680
13129700
14128710
15126730
16125740
17123760
18122770
19121780
20120790
21119791
22118801
23117811
24016831
25015841
26014842
27012862
28011872
29010882
3009883
3108893

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 42 min at the start of December to 12 h 42 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 5:12 AM to 5:25 AM, and sunset from 5:53 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:125:53
212.75:135:53
312.75:135:54
412.75:135:54
512.75:135:55
612.75:145:55
712.75:145:56
812.75:145:56
912.75:155:57
1012.75:155:57
1112.75:155:58
1212.75:165:59
1312.75:165:59
1412.75:176:00
1512.75:176:00
1612.75:176:01
1712.75:186:01
1812.75:186:02
1912.75:196:02
2012.75:196:03
2112.75:206:03
2212.75:206:04
2312.75:216:04
2412.75:216:04
2512.75:226:05
2612.75:226:05
2712.75:236:06
2812.75:236:06
2912.75:246:07
3012.75:246:07
3112.75:256:07

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 4.83 kWh/m² to a high of 6.97 kWh/m² in October across the year — December's 6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.4Intense
56.4Intense
66.4Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.1Intense
146.1Intense
156.0Intense
166.0Intense
176.0Bright
186.0Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Antsiranana

In seasonPeak

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

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

Antsiranana'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 Antsiranana?

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

4.0
Sightseeing
9th-best month of the year
5.9
Beach & pool
9th-best month of the year

December is a reasonable time to visit Antsiranana for sightseeing.

What to pack for Antsiranana in December

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

In December, Antsiranana sees daytime highs around 31°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Antsiranana 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 at the nearest coast (about 23 km away) is warmest in March at about 28°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr28Tropical
May28Warm
Jun26Warm
Jul25Warm
Aug25Warm
Sep25Warm
Oct25Warm
Nov27Warm
Dec28Warm

UV index in Antsiranana 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 Antsiranana peaks around February 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 15Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Antsiranana?

Antsiranana sits at 12.3°S, 49.3°E, 60 m above sea level, in Madagascar. The nearest listed city is Antsohimbondrona, 98 km away.

AntsohimbondronaAmbilobeIharan̈aAmbarakarakaHell-VilleAmbanjaSambavaMaromandia

Topography around Antsiranana

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

Within 3 km, the terrain around Antsiranana has only modest variations in elevation — a maximum elevation change of 106 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 466 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,441 m.

The land around Antsiranana is covered by grassland (47%) and artificial surfaces (23%) within 3 km, grassland (30%) and water (29%) within 16 km, and water (60%) and grassland (21%) within 80 km.

3 km
106 m
16 km
466 m
80 km
1,441 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Antsohimbondrona 98 km · Ambilobe 102 km · Iharan̈a 138 km · Ambarakaraka 139 km · Hell-Ville 164 km · Ambanja 176 km · Sambava 237 km · Maromandia 248 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 Antsiranana (-12.3173°, 49.2919°, elevation 60 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).