Mangaratiba weather in January

In January, Mangaratiba sees average daytime highs of 28°C and overnight lows near 24°C, with 259 mm of rain across 21.6 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 1st-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 20% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Mangaratiba's 10th-clearest and 10th-windiest month. For the whole year in context, see Mangaratiba's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
24°
11th coldest
Rainfall
259 mm
21.6 wet days
Daylight
13 h 18 min
6:27 AM – 7:43 PM
Cloud cover
71%
10th clearest
Wind
8 km/h
10th windiest
Solar energy
5.84 kWh/m²
Travel score
4.5
out of 10

Mangaratiba is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Mangaratiba reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

Mangaratiba weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°25921.613.34.5
Feb28° / 24°18917.512.84.5
Mar28° / 23°2072112.24.8
Apr26° / 22°12814.111.56.1
May24° / 20°9011.810.96.8
Jun24° / 19°587.810.67.5
Jul23° / 18°61810.77.5
Aug24° / 18°51811.27.5
Sep24° / 19°9712.511.96.6
Oct25° / 20°12114.412.56.0
Nov25° / 21°17818.613.15.3
Dec27° / 23°21220.113.44.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43169
53169
63169
73169
83070
93268
103268
113268
123268
133268
143268
153268
163268
173169
183268
193169
203169
213169
223169
233268
243268
253367
263367
273466
283466
293565
303664
313664

Chance of precipitation in January

Any precipitation

Mangaratiba gets around 259 mm of rain over 21.6 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 69% and peaks near 71% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
371
470
570
670
770
869
969
1069
1169
1269
1369
1469
1569
1670
1770
1870
1970
2070
2170
2270
2370
2469
2569
2668
2767
2866
2966
3065
3164

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1221698
2221698
3120709
4120709
5120709
6119719
7119719
8119719
9118729
10118729
11118729
12118729
13118729
14117739
15117739
16117739
171187110
182187010
192187010
202187010
212186911
222186911
232186911
242186812
252186812
261186912
271186912
281186912
291177111
301177111
311177111

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:18 AM to 6:38 AM, and sunset from 7:41 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:187:41
213.46:187:41
313.46:197:42
413.46:207:42
513.46:207:42
613.46:217:42
713.46:217:42
813.36:227:43
913.36:237:43
1013.36:237:43
1113.36:247:43
1213.36:257:43
1313.36:257:43
1413.36:267:43
1513.36:277:43
1613.36:277:43
1713.36:287:43
1813.26:297:43
1913.26:297:43
2013.26:307:43
2113.26:317:43
2213.26:327:43
2313.26:327:43
2413.26:337:43
2513.26:347:43
2613.16:347:43
2713.16:357:42
2813.16:367:42
2913.16:367:42
3013.16:377:42
3113.16:387:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.84 kWh/m².

For context, solar energy here swings from a low near 3.36 kWh/m² to a high of 5.99 kWh/m² in February across the year — January's 5.84 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in January

Hazard calendar for Mangaratiba

In seasonPeak

In January, Mangaratiba sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mangaratiba's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Mangaratiba?

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

4.5
Sightseeing
11th-best month of the year
5.0
Beach & pool
10th-best month of the year

January is a reasonable time to visit Mangaratiba for sightseeing.

What to pack for Mangaratiba in January

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

In January, Mangaratiba sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Mangaratiba in January

The nearest coast averages about 26°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 km away) is warmest in February at about 26°C and coldest in August near 21°C.

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

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Mangaratiba in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Mangaratiba peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep7High
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Mangaratiba in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Mangaratiba is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (February, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1625 µg/m³Feb 1713 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar14Moderate
Apr15Moderate
May20Moderate
Jun24Moderate
Jul26Moderate
Aug23Moderate
Sep26Moderate
Oct17Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Mangaratiba?

Mangaratiba sits at 23.0°S, 44.0°W, 21 m above sea level, in Brazil. The nearest listed city is Rio Claro, 28 km away.

Topography around Mangaratiba

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

Within 3 km, the terrain around Mangaratiba has significant variations in elevation — a maximum elevation change of 444 m around an average of 58 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,664 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,049 m.

The land around Mangaratiba is covered by water (52%) and trees (35%) within 3 km, trees (51%) and water (40%) within 16 km, and trees (36%), water (36%) and grassland (22%) within 80 km.

3 km
444 m
16 km
1,664 m
80 km
2,049 m
treesgrasslandartificial surfaceswater
January weather nearby: Rio Claro 28 km · Angra dos Reis 29 km · Itaguaí 30 km · Piraí 40 km · Seropédica 42 km · Universidade Rural 42 km · Barra Mansa 48 km · Volta Redonda 49 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 Mangaratiba (-22.9597°, -44.0406°, elevation 21 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. 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. 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).