Rio Negrinho weather in January

In January, Rio Negrinho sees average daytime highs of 26°C and overnight lows near 17°C, with 211 mm of rain across 22.6 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 1st-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 8% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of January to 13 h 12 min by month's end. Set against the rest of the year, January is Rio Negrinho's 11th-clearest and 6th-windiest month. For the whole year in context, see Rio Negrinho's year-round climate.

Daytime high
26°
1st warmest
Overnight low
17°
11th coldest
Rainfall
211 mm
22.6 wet days
Daylight
13 h 30 min
6:43 AM – 8:12 PM
Cloud cover
77%
11th clearest
Wind
10 km/h
6th windiest
Solar energy
5.26 kWh/m²
Travel score
4.7
out of 10

Rio Negrinho 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 26°C through the month.

A typical January day in Rio Negrinho reaches about 26°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.

10°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
292618
302618
312618

Rio Negrinho weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°21122.613.54.7
Feb26° / 17°19020.712.94.6
Mar25° / 17°13218.412.25.4
Apr23° / 14°8511.411.46.4
May20° / 11°1029.710.76.2
Jun19° / 10°1259.810.46.0
Jul19° / 1039.110.56.2
Aug20° / 10°1018.311.16.6
Sep21° / 12°17611.611.86.0
Oct22° / 13°1691612.65.4
Nov23° / 15°13816.513.35.6
Dec25° / 16°17319.313.65.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52278
62278
72278
82278
92278
102377
112377
122278
132278
142278
152278
162278
172278
182278
192179
202179
212179
222080
232080
242080
252179
262179
272179
282179
292377
302377
312377

Chance of precipitation in January

Any precipitation

Rio Negrinho gets around 211 mm of rain over 22.6 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 72% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
169
270
370
471
571
672
772
872
972
1072
1172
1272
1372
1472
1572
1672
1772
1872
1972
2072
2173
2273
2373
2473
2573
2673
2773
2872
2972
3072
3172

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 50% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111636460
211636470
311537470
411437470
511338470
621239480
721239480
821139480
921140480
1021040480
1121040480
1221040490
1321039490
1411039490
1511139490
1611138490
1711138490
1811238500
1911237500
2011236510
2111236510
2211235520
2311235520
2411234530
2511234530
2611233540
2711233540
2811232550
2911132560
3011132551
3111131561

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 36 min at the start of January to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over January. Sunrise moves from 6:33 AM to 6:54 AM, and sunset from 8:10 PM to 8:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:338:10
213.66:338:10
313.66:348:10
413.66:358:11
513.66:358:11
613.66:368:11
713.66:378:11
813.66:378:11
913.66:388:11
1013.56:398:12
1113.56:398:12
1213.56:408:12
1313.56:418:12
1413.56:428:12
1513.56:428:12
1613.56:438:12
1713.56:448:12
1813.56:448:12
1913.46:458:11
2013.46:468:11
2113.46:478:11
2213.46:488:11
2313.46:488:11
2413.46:498:11
2513.36:508:10
2613.36:518:10
2713.36:518:10
2813.36:528:10
2913.36:538:09
3013.36:548:09
3113.26:548:09

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.26 kWh/m².

For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 5.47 kWh/m² in December across the year — January's 5.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in January

Is January a good time to visit Rio Negrinho?

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

4.7
Sightseeing
11th-best month of the year
4.4
Beach & pool
5th-best month of the year

January is a reasonable time to visit Rio Negrinho for sightseeing.

What to pack for Rio Negrinho in January

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

In January, Rio Negrinho sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Rio Negrinho 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 Rio Negrinho peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 highExtremeJan 18UV 15Jul 13UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Rio Negrinho 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 Rio Negrinho is worst in September — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (February, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1115 µg/m³Feb 139 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr11Good
May12Moderate
Jun12Good
Jul14Moderate
Aug15Moderate
Sep16Moderate
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Rio Negrinho?

Rio Negrinho sits at 26.3°S, 49.5°W, 793 m above sea level, in Brazil. The nearest listed city is São Bento do Sul, 14 km away.

Topography around Rio Negrinho

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

Within 3 km, the terrain around Rio Negrinho has only modest variations in elevation — a maximum elevation change of 116 m around an average of 820 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 310 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,647 m.

The land around Rio Negrinho is covered by trees (57%) and artificial surfaces (22%) within 3 km, trees (71%) within 16 km, and trees (74%) within 80 km.

3 km
116 m
16 km
310 m
80 km
1,647 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: São Bento do Sul 14 km · Rio Negro 32 km · Mafra 33 km · Corupá 33 km · Itaiópolis 40 km · Quitandinha 43 km · Schroeder 48 km · Tijucas do Sul 50 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 Rio Negrinho (-26.2544°, -49.5183°, elevation 793 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).