Toamasina weather in December

In December, Toamasina sees average daytime highs of 27°C and overnight lows near 25°C, with 186 mm of rain across 22 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 38% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Toamasina's 9th-clearest and 12th-windiest month. For the whole year in context, see Toamasina's year-round climate.

Daytime high
27°
4th warmest
Overnight low
25°
9th coldest
Rainfall
186 mm
22 wet days
Daylight
13 h 06 min
5:06 AM – 6:11 PM
Cloud cover
53%
9th clearest
Wind
15 km/h
12th windiest
Solar energy
6.32 kWh/m²
Travel score
4.9
out of 10

Toamasina is port city in eastern Madagascar.

Density
17,255/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 27°C through the month.

A typical December day in Toamasina reaches about 27°C in the afternoon and slips back to 25°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12625
22625
32625
42625
52625
62625
72625
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302725
312725

Toamasina weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°30525134.2
Feb27° / 26°3202312.64.2
Mar27° / 25°34626.212.14.2
Apr26° / 25°20024.211.64.6
May25° / 24°20123.511.25.0
Jun24° / 22°17424.210.94.9
Jul23° / 21°18024.3114.9
Aug23° / 21°11220.811.45.5
Sep23° / 22°7617.711.96.1
Oct24° / 23°771712.46.3
Nov26° / 24°7916.112.96.1
Dec27° / 25°1862213.14.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46535
56436
66436
76337
86337
96139
106139
116040
126040
135842
145743
155743
165644
175545
185446
195446
205446
215347
225248
235149
245050
254951
264753
274654
284555
294357
304258
314258

Chance of precipitation in December

Any precipitation

Toamasina gets around 186 mm of rain over 22 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 71% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
162
262
362
463
563
664
765
865
966
1067
1167
1268
1369
1470
1571
1672
1773
1874
1974
2075
2175
2276
2376
2477
2577
2678
2779
2879
2980
3080
3181

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 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1122743
2121753
3120763
4120754
5119764
6118765
7117775
8016786
9015787
10014788
11013798
12012799
130127810
140117910
150107911
16097912
17097912
18087913
19087913
20078013
21077914
22068014
23068014
24058015
25058015
26057916
27048016
28047917
29037918
30037918
31027919

Wind in December

Winds average 15 km/h in December, the calmest month.

Across December, daily wind ranges from about 14 km/h on the calmest days to 16 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
515light breeze
615light breeze
715light breeze
815light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 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 5:02 AM to 5:13 AM, and sunset from 6:02 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:026:02
213.05:026:03
313.05:026:04
413.05:026:04
513.05:036:05
613.05:036:05
713.05:036:06
813.15:036:07
913.15:046:07
1013.15:046:08
1113.15:046:08
1213.15:056:09
1313.15:056:09
1413.15:056:10
1513.15:066:11
1613.15:066:11
1713.15:066:12
1813.15:076:12
1913.15:076:13
2013.15:086:13
2113.15:086:14
2213.15:096:14
2313.15:096:15
2413.15:106:15
2513.15:106:15
2613.15:116:16
2713.15:116:16
2813.15:126:17
2913.15:126:17
3013.15:136:17
3113.15:136:18

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.32 kWh/m².

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 6.35 kWh/m² in November across the year — December's 6.32 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.0Intense
276.0Intense
286.0Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in December

Hazard calendar for Toamasina

In seasonPeak

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

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

Toamasina's rainy season runs December–July, 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 Toamasina?

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

4.9
Sightseeing
6th-best month of the year
4.9
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Toamasina for sightseeing.

What to pack for Toamasina in December

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

In December, Toamasina sees daytime highs around 27°C and nights near 25°C. Pack rain gear and sun protection. Worth having: light clothes. About 22 days see rain.

rain gearsun protectionlight clothes

Sea temperature near Toamasina 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 24 km away) 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
Jan28Tropical
Feb29Tropical
Mar28Tropical
Apr28Tropical
May27Warm
Jun26Warm
Jul25Warm
Aug24Warm
Sep24Warm
Oct25Warm
Nov26Warm
Dec28Warm

UV index in Toamasina 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 Toamasina peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 13UV 15Jun 19UV 7
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec14Extreme
Location & terrain

Where is Toamasina?

Toamasina sits at 18.1°S, 49.4°E, 12 m above sea level, in Madagascar. The nearest listed city is Vavatenina, 79 km away.

Fenoarivo AtsinananaDidyVohibinanyAmbodimanga IIAmbatondrazakaImerimandroso

Topography around Toamasina

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

Within 3 km, the terrain around Toamasina has only modest variations in elevation — a maximum elevation change of 15 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 201 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,456 m.

The land around Toamasina is covered by artificial surfaces (47%) and water (25%) within 3 km, water (54%) and trees (29%) within 16 km, and trees (49%) and water (37%) within 80 km.

3 km
15 m
16 km
201 m
80 km
1,456 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Vavatenina 79 km · Ampasimanolotra 82 km · Fenoarivo Atsinanana 85 km · Didy 92 km · Vohibinany 97 km · Ambodimanga II 101 km · Ambatondrazaka 110 km · Imerimandroso 118 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 Toamasina (-18.1492°, 49.4023°, elevation 12 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).