Ipanema weather in December

In December, Ipanema sees average daytime highs of 29°C and overnight lows near 20°C, with 265 mm of rain across 18.4 wet days and about 13.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 8% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 06 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Ipanema's 11th-clearest and 7th-windiest month. For the whole year in context, see Ipanema's year-round climate.

Daytime high
29°
4th warmest
Overnight low
20°
10th coldest
Rainfall
265 mm
18.4 wet days
Daylight
13 h 12 min
6:07 AM – 7:19 PM
Cloud cover
79%
11th clearest
Wind
6 km/h
7th windiest
Solar energy
5.28 kWh/m²
Travel score
4.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Ipanema reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

How December really feels in Ipanema

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ipanema weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°1831413.14.6
Feb30° / 20°10110.112.74.7
Mar30° / 20°13313.812.14.7
Apr28° / 19°689.811.65.9
May26° / 17°325.311.17.3
Jun25° / 15°122.510.88.0
Jul25° / 15°92.210.98.1
Aug26° / 15°113.311.37.8
Sep27° / 17°396.211.96.9
Oct28° / 18°9710.412.55.7
Nov28° / 19°20316.512.95.0
Dec29° / 20°26518.413.24.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31585
41486
51486
61585
71585
81585
91585
101684
111783
121981
131981
142080
152179
162278
172278
182476
192575
202575
212674
222773
232773
242773
252773
262773
272773
282674
292674
302674
312674

Chance of precipitation in December

Any precipitation

Ipanema gets around 265 mm of rain over 18.4 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 64% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
160
261
362
463
563
664
764
864
964
1064
1164
1263
1363
1462
1562
1661
1760
1859
1958
2057
2156
2256
2355
2455
2554
2653
2753
2852
2952
3051
3150

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12186515
22166517
32156518
41146619
51136620
61136521
71126522
81116523
91106623
101106524
11196624
12196624
13196624
14196624
15086824
16086923
17086923
18086923
19087022
20087022
21087022
22087022
23087022
24096922
25096823
26096823
27096823
28096823
290106723
300106723
310106723

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 06 min at the start of December to 13 h 12 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 6:03 AM to 6:15 AM, and sunset from 7:10 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:037:10
213.16:037:11
313.16:047:11
413.16:047:12
513.16:047:12
613.16:047:13
713.26:047:14
813.26:057:14
913.26:057:15
1013.26:057:15
1113.26:067:16
1213.26:067:17
1313.26:067:17
1413.26:077:18
1513.26:077:18
1613.26:077:19
1713.26:087:19
1813.26:087:20
1913.26:097:20
2013.26:097:21
2113.26:097:21
2213.26:107:22
2313.26:107:22
2413.26:117:23
2513.26:117:23
2613.26:127:24
2713.26:127:24
2813.26:137:24
2913.26:137:25
3013.26:147:25
3113.26:157:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.28 kWh/m².

For context, solar energy here swings from a low near 3.5 kWh/m² to a high of 5.99 kWh/m² in February across the year — December's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in December

Hazard calendar for Ipanema

In seasonPeak

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

Ipanema's monsoon runs November–January, 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 Ipanema?

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

4.4
Sightseeing
12th-best month of the year
5.4
Beach & pool
12th-best month of the year

December is a reasonable time to visit Ipanema for sightseeing.

What to pack for Ipanema in December

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

In December, Ipanema sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Ipanema 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 Ipanema peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 12UV 15Jun 20UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Ipanema?

Ipanema sits at 19.8°S, 41.7°W, 248 m above sea level, in Brazil. The nearest listed city is Mutum, 29 km away.

Topography around Ipanema

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

Within 3 km, the terrain around Ipanema has significant variations in elevation — a maximum elevation change of 319 m around an average of 293 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,119 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,745 m.

The land around Ipanema is covered by grassland (55%) and trees (35%) within 3 km, grassland (54%) and trees (45%) within 16 km, and trees (52%) and grassland (47%) within 80 km.

3 km
319 m
16 km
1,119 m
80 km
2,745 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Mutum 29 km · Lajinha 40 km · Caratinga 45 km · Simonésia 47 km · Inhapim 51 km · Ibatiba 53 km · Manhuaçu 61 km · Iúna 63 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Ipanema (-19.8008°, -41.7131°, elevation 248 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).