Fianarantsoa weather in December

In December, Fianarantsoa sees average daytime highs of 26°C and overnight lows near 17°C, with 209 mm of rain across 19.7 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Fianarantsoa's 10th-clearest and 12th-windiest month. For the whole year in context, see Fianarantsoa's year-round climate.

Daytime high
26°
1st warmest
Overnight low
17°
10th coldest
Rainfall
209 mm
19.7 wet days
Daylight
13 h 18 min
5:09 AM – 6:27 PM
Cloud cover
68%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
6.37 kWh/m²
Travel score
5.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Fianarantsoa reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Fianarantsoa weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 18°28722.813.24.7
Feb25° / 18°21319.112.74.9
Mar25° / 17°14616.712.25.8
Apr24° / 15°4910.311.56.9
May22° / 13°245.4117.5
Jun20° / 11°123.110.77.5
Jul19° / 10°153.510.87.2
Aug20° / 10°92.711.37.8
Sep23° / 12°92.511.98.3
Oct25° / 14°437.412.57.6
Nov26° / 16°9512.6136.3
Dec26° / 17°20919.713.35.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33862
43862
53763
63664
73565
83565
93565
103466
113367
123268
133268
143268
153268
163268
173268
183268
193268
203169
213268
223268
233268
243268
253268
263169
273169
283070
292971
302872
312773

Chance of precipitation in December

Any precipitation

Fianarantsoa gets around 209 mm of rain over 19.7 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 64% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
155
256
357
458
559
660
760
861
962
1063
1164
1264
1365
1465
1566
1666
1766
1866
1966
2066
2166
2266
2366
2466
2566
2666
2767
2867
2968
3068
3169

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1224677
2224668
3223669
42226610
52226511
62216512
72216512
82206513
92206414
101196515
111186615
121186516
131176517
141166518
151166518
161156519
171146619
181136620
191136620
201126720
211126720
221116721
231116721
241106722
251106722
26196723
27096724
28096724
29086725
30086725
31086626

Wind in December

Winds average 9 km/h in December, the calmest month.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 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
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 min at the start of December to 13 h 18 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 5:05 AM to 5:16 AM, and sunset from 6:18 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:056:18
213.25:056:18
313.25:056:19
413.25:056:20
513.25:066:20
613.35:066:21
713.35:066:22
813.35:066:22
913.35:076:23
1013.35:076:23
1113.35:076:24
1213.35:076:25
1313.35:086:25
1413.35:086:26
1513.35:086:26
1613.35:096:27
1713.35:096:27
1813.35:106:28
1913.35:106:28
2013.35:106:29
2113.35:116:29
2213.35:116:30
2313.35:126:30
2413.35:126:31
2513.35:136:31
2613.35:136:32
2713.35:146:32
2813.35:146:32
2913.35:156:33
3013.35:166:33
3113.35:166:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.37 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.69 kWh/m² in November across the year — December's 6.37 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.1Intense
276.1Intense
286.1Intense
296.0Intense
306.0Bright
316.0Bright
Planning a trip in December

Hazard calendar for Fianarantsoa

In seasonPeak

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

Fianarantsoa's monsoon runs December–March, 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 Fianarantsoa?

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

5.2
Sightseeing
10th-best month of the year
4.9
Beach & pool
7th-best month of the year

December is a reasonable time to visit Fianarantsoa for sightseeing.

What to pack for Fianarantsoa in December

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

In December, Fianarantsoa sees daytime highs around 26°C and nights near 17°C. Pack rain gear and sun protection. Worth having: light clothes. About 20 days see rain.

rain gearsun protectionlight clothes

UV index in Fianarantsoa in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fianarantsoa peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 highExtremeFeb 12UV 16Jun 18UV 6
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun6High
Jul7High
Aug8Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec15Extreme

Air quality in Fianarantsoa 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 Fianarantsoa is worst in October — around 22 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (February, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1721 µg/m³Feb 116 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar7Good
Apr10Good
May15Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct22Moderate
Nov16Moderate
Dec10Good
Location & terrain

Where is Fianarantsoa?

Fianarantsoa sits at 21.5°S, 47.1°E, 1,117 m above sea level, in Madagascar. The nearest listed city is Ambalavao, 45 km away.

AmboanjoAmbositraAmbatofinandrahanaIvohibe

Topography around Fianarantsoa

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

Within 3 km, the terrain around Fianarantsoa has significant variations in elevation — a maximum elevation change of 297 m around an average of 1,148 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 503 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,372 m.

The land around Fianarantsoa is covered by cropland (33%), grassland (25%) and artificial surfaces (23%) within 3 km, grassland (62%) and cropland (29%) within 16 km, and grassland (63%) within 80 km.

3 km
297 m
16 km
503 m
80 km
2,372 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Ambalavao 45 km · Ifanadiana 59 km · Ikongo 60 km · Ikalamavony 62 km · Amboanjo 100 km · Ambositra 104 km · Ambatofinandrahana 104 km · Ivohibe 116 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 Fianarantsoa (-21.4527°, 47.0857°, elevation 1,117 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. 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).