Iharan̈a weather in December

In December, Iharan̈a sees average daytime highs of 28°C and overnight lows near 25°C, with 153 mm of rain across 21.2 wet days and about 12.8 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 36% 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 48 min by month's end. Set against the rest of the year, December is Iharan̈a's 9th-clearest and 10th-windiest month. For the whole year in context, see Iharan̈a's year-round climate.

Daytime high
28°
4th warmest
Overnight low
25°
8th coldest
Rainfall
153 mm
21.2 wet days
Daylight
12 h 48 min
5:13 AM – 6:00 PM
Cloud cover
58%
9th clearest
Wind
17 km/h
10th windiest
Solar energy
6.32 kWh/m²
Travel score
4.4
out of 10

Iharan̈a is city in Madagascar.

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 28°C through the month.

A typical December day in Iharan̈a reaches about 28°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)
12824
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How December really feels in Iharan̈a

Once humidity and wind are folded in, December averages 8 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
8
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.

Iharan̈a weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°22324.512.73.6
Feb29° / 25°19022.112.43.6
Mar29° / 25°18823.312.13.9
Apr28° / 25°11718.611.74.8
May27° / 24°5612.811.46.4
Jun26° / 23°5612.811.26.5
Jul25° / 22°6613.211.36.6
Aug25° / 22°5313.411.66.7
Sep26° / 22°4111.211.97.0
Oct26° / 23°461112.36.9
Nov28° / 24°5412.412.66.3
Dec28° / 25°15321.212.84.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26832
36733
46535
56436
66337
76238
86139
96040
105941
115842
125743
135743
145644
155545
165545
175347
185248
195050
204951
214852
224654
234555
244258
254258
264060
273961
283763
293664
303565
313367

Chance of precipitation in December

Any precipitation

Iharan̈a gets around 153 mm of rain over 21.2 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 67% and peaks near 79% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
253
354
455
557
658
759
861
962
1063
1164
1265
1366
1467
1567
1668
1769
1870
1971
2072
2173
2273
2374
2475
2575
2676
2777
2877
2978
3078
3179

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116840
215841
314851
413861
512862
611872
710882
810873
99883
108884
117894
127894
136895
146895
155896
165896
174906
184897
193907
203907
213898
222908
232899
242899
2528810
2618910
2718811
2818712
2918712
3018613
3108713

Wind in December

Winds average 17 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 42 min at the start of December to 12 h 48 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 5:08 AM to 5:20 AM, and sunset from 5:52 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:085:52
212.75:085:52
312.75:085:53
412.75:095:53
512.85:095:54
612.85:095:54
712.85:095:55
812.85:105:55
912.85:105:56
1012.85:105:57
1112.85:115:57
1212.85:115:58
1312.85:115:58
1412.85:125:59
1512.85:125:59
1612.85:136:00
1712.85:136:00
1812.85:146:01
1912.85:146:01
2012.85:146:02
2112.85:156:02
2212.85:156:03
2312.85:166:03
2412.85:166:04
2512.85:176:04
2612.85:176:04
2712.85:186:05
2812.85:186:05
2912.85:196:06
3012.85:196:06
3112.85:206:06

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 4.33 kWh/m² to a high of 6.58 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
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.0Intense
296.0Intense
306.0Intense
316.0Bright
Planning a trip in December

Hazard calendar for Iharan̈a

In seasonPeak

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

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

Iharan̈a's monsoon runs December–April, 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 Iharan̈a?

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

4.4
Sightseeing
9th-best month of the year
5.3
Beach & pool
9th-best month of the year

December is a reasonable time to visit Iharan̈a for sightseeing.

What to pack for Iharan̈a in December

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

In December, Iharan̈a sees daytime highs around 28°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Iharan̈a 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 14 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
Mar29Tropical
Apr28Tropical
May27Warm
Jun26Warm
Jul25Warm
Aug24Warm
Sep25Warm
Oct25Warm
Nov27Warm
Dec28Warm

UV index in Iharan̈a in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Iharan̈a peaks around February 16 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 16UV 15Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Iharan̈a?

Iharan̈a sits at 13.3°S, 50.0°E, in Madagascar. The nearest listed city is Sambava, 104 km away.

SambavaAmbilobeAmbarakarakaAntsohimbondronaAntsirananaAndapaAmpahanaAmbanja

Topography around Iharan̈a

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

Within 3 km, the terrain around Iharan̈a has only modest variations in elevation — a maximum elevation change of 117 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,814 m.

The land around Iharan̈a is covered by water (71%) within 3 km, water (55%) and grassland (31%) within 16 km, and grassland (37%), water (37%) and trees (22%) within 80 km.

3 km
117 m
16 km
420 m
80 km
1,814 m
treesshrubsgrasslandartificial surfaceswaterwetlandmangroves
December weather nearby: Sambava 104 km · Ambilobe 104 km · Ambarakaraka 124 km · Antsohimbondrona 128 km · Antsiranana 138 km · Andapa 149 km · Ampahana 157 km · Ambanja 171 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 Iharan̈a (-13.35°, 50°), 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).