Porto Real weather in January

In January, Porto Real sees average daytime highs of 29°C and overnight lows near 20°C, with 282 mm of rain across 22.1 wet days and about 13.2 hours of daylight. It is the 2nd-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 16% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of January to 13 hours by month's end. Set against the rest of the year, January is Porto Real's 10th-clearest and 7th-windiest month. For the whole year in context, see Porto Real's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
20°
12th coldest
Rainfall
282 mm
22.1 wet days
Daylight
13 h 12 min
6:29 AM – 7:43 PM
Cloud cover
75%
10th clearest
Wind
5 km/h
7th windiest
Solar energy
5.39 kWh/m²
Travel score
3.9
out of 10

Porto Real is human settlement in Brazil.

Air quality
Excellent
PM10 9.7 µg/m³ · 2019

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 29°C through the month.

A typical January day in Porto Real 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 24°C and 32°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Porto Real 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
Jan29° / 20°28222.113.23.9
Feb29° / 20°20517.512.84.2
Mar28° / 19°19420.212.24.6
Apr27° / 18°8611.711.56.2
May25° / 15°488.410.97.2
Jun24° / 14°275.310.77.9
Jul24° / 13°285.310.88.0
Aug25° / 14°275.311.27.8
Sep26° / 16°6910.711.96.6
Oct27° / 17°11714.712.55.7
Nov27° / 18°2041913.14.9
Dec28° / 20°24921.313.34.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% 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 72%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22575
32575
42674
52674
62674
72674
82773
92773
102773
112773
122773
132872
142872
152872
162872
172773
182773
192773
202674
212674
222773
232872
242872
252872
262872
272971
283070
293070
303070
313169

Chance of precipitation in January

Any precipitation

Porto Real gets around 282 mm of rain over 22.1 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 71% and peaks near 75% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
175
275
374
474
573
673
773
872
971
1071
1170
1270
1370
1470
1570
1670
1770
1870
1970
2071
2171
2270
2370
2470
2570
2669
2768
2868
2967
3066
3166

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
1127414
2127414
3127315
4127315
5127315
6127216
7127216
8127216
9127216
10127117
11127117
12127117
13127018
14127018
15127018
16127018
17136819
18136819
19136819
20136819
21136819
22136720
23136720
24136720
25136720
26126820
27126820
28126919
29126919
30126919
31136819

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

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

Days shrink by about 24 minutes over January. Sunrise moves from 6:20 AM to 6:39 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)
113.46:207:41
213.36:207:41
313.36:217:41
413.36:227:42
513.36:227:42
613.36:237:42
713.36:237:42
813.36:247:43
913.36:257:43
1013.36:257:43
1113.36:267:43
1213.36:277:43
1313.36:277:43
1413.36:287:43
1513.26:297:43
1613.26:297:43
1713.26:307:43
1813.26:317:43
1913.26:317:43
2013.26:327:43
2113.26:337:43
2213.26:337:43
2313.16:347:43
2413.16:357:43
2513.16:367:43
2613.16:367:43
2713.16:377:42
2813.16:387:42
2913.16:387:42
3013.06:397:42
3113.06:397:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.39 kWh/m².

For context, solar energy here swings from a low near 3.47 kWh/m² to a high of 5.62 kWh/m² in February across the year — January's 5.39 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in January

Hazard calendar for Porto Real

In seasonPeak

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

Porto Real's monsoon runs November–March, when most of the year's rain falls.

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

Is January a good time to visit Porto Real?

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

3.9
Sightseeing
12th-best month of the year
5.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Porto Real.

What to pack for Porto Real in January

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

In January, Porto Real sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Porto Real in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Porto Real peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 9UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep7Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Porto Real 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 Porto Real is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1332 µg/m³Dec 2115 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar17Moderate
Apr19Moderate
May24Moderate
Jun29Moderate
Jul31Moderate
Aug27Moderate
Sep33Moderate
Oct20Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Porto Real?

Porto Real sits at 22.4°S, 44.3°W, 392 m above sea level, in Brazil. The nearest listed city is Resende, 17 km away.

Topography around Porto Real

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

Within 3 km, the terrain around Porto Real has only modest variations in elevation — a maximum elevation change of 154 m around an average of 404 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,065 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,761 m.

The land around Porto Real is covered by grassland (66%) within 3 km, grassland (59%) and trees (37%) within 16 km, and trees (50%) and grassland (42%) within 80 km.

3 km
154 m
16 km
1,065 m
80 km
2,761 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Resende 17 km · Barra Mansa 18 km · Volta Redonda 22 km · Itatiaia 29 km · Pinheiral 32 km · Rio Claro 37 km · Piraí 47 km · Barra do Piraí 48 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 Porto Real (-22.4197°, -44.2903°, elevation 392 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).