Cachoeirinha weather in January

In January, Cachoeirinha sees average daytime highs of 30°C and overnight lows near 21°C, with 140 mm of rain across 14.2 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 31% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of January to 13 h 24 min by month's end. Set against the rest of the year, January is Cachoeirinha's 6th-clearest and 5th-windiest month. For the whole year in context, see Cachoeirinha's year-round climate.

Daytime high
30°
1st warmest
Overnight low
21°
12th coldest
Rainfall
140 mm
14.2 wet days
Daylight
13 h 42 min
6:42 AM – 8:26 PM
Cloud cover
59%
6th clearest
Wind
11 km/h
5th windiest
Solar energy
6.39 kWh/m²
Travel score
4.7
out of 10

Cachoeirinha is 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 30°C through the month.

A typical January day in Cachoeirinha reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°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)
13020
23020
33020
43020
53020
63020
73021
83021
93021
103021
113021
123021
133020
143020
153020
163020
173020
183020
193020
203020
213020
223020
233021
243021
253021
263021
273021
283021
293021
303021
313021

Cachoeirinha weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°14014.213.74.7
Feb29° / 20°12713.913.14.7
Mar28° / 19°12112.612.25.7
Apr25° / 16°1029.711.36.8
May22° / 13°1069.210.56.7
Jun20° / 11°1129.410.16.2
Jul19° / 10°13610.310.36.1
Aug21° / 11°12210.410.96.5
Sep22° / 13°14711.211.86.3
Oct24° / 15°16912.712.76.4
Nov27° / 17°12210.913.56.4
Dec29° / 19°12912.413.95.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34951
44951
54951
64951
75050
85050
95050
105050
115050
124951
135050
145050
155050
165050
175050
184951
194852
204951
214951
224951
234951
244951
254951
264951
274951
284951
294951
305050
315050

Chance of precipitation in January

Any precipitation

Cachoeirinha gets around 140 mm of rain over 14.2 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
141
242
342
443
543
644
744
845
945
1046
1146
1246
1346
1446
1546
1646
1746
1846
1946
2046
2146
2246
2347
2447
2547
2647
2748
2848
2948
3048
3149

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1172036350
2172037350
3162037350
4162037360
5162037360
6161938360
7161938360
8161839360
9161839360
10161739360
11161739360
12161740360
13161740360
14151740360
15151740360
16151740370
17151740370
18151839371
19151838371
20151838371
21151838371
22141838381
23141837381
24141837391
25141836392
26141836402
27131835412
28131835422
29131834422
30131834432
31131733432

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 54 min at the start of January to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over January. Sunrise moves from 6:31 AM to 6:54 AM, and sunset from 8:24 PM to 8:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:318:24
213.96:318:25
313.96:328:25
413.96:338:25
513.96:338:25
613.96:348:25
713.86:358:26
813.86:368:26
913.86:368:26
1013.86:378:26
1113.86:388:26
1213.86:398:26
1313.86:398:26
1413.86:408:26
1513.76:418:26
1613.76:428:26
1713.76:438:25
1813.76:438:25
1913.76:448:25
2013.76:458:25
2113.66:468:25
2213.66:478:24
2313.66:488:24
2413.66:488:24
2513.66:498:24
2613.66:508:23
2713.56:518:23
2813.56:528:22
2913.56:538:22
3013.56:538:22
3113.46:548:21

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.39 kWh/m².

For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 6.65 kWh/m² in December across the year — January's 6.39 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.1Intense
Planning a trip in January

Is January a good time to visit Cachoeirinha?

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
6.3
Beach & pool
4th-best month of the year

January is a reasonable time to visit Cachoeirinha for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cachoeirinha in January

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

In January, Cachoeirinha sees daytime highs around 30°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Cachoeirinha 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 47 km away) is warmest in February at about 26°C and coldest in July near 15°C.

It's comfortable for a long swim from Oct 23 to May 10 — about 6.6 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar25Warm
Apr23Refreshing
May19Cool
Jun17Cool
Jul15Cool
Aug16Cool
Sep17Cool
Oct20Cool
Nov22Refreshing
Dec24Warm

UV index in Cachoeirinha in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Cachoeirinha peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 15UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Cachoeirinha 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 Cachoeirinha is worst in August — around 27 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateAug 1327 µg/m³Dec 2213 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar15Moderate
Apr18Moderate
May21Moderate
Jun23Moderate
Jul25Moderate
Aug27Moderate
Sep23Moderate
Oct16Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Cachoeirinha?

Cachoeirinha sits at 30.0°S, 51.1°W, 15 m above sea level, in Brazil. The nearest listed city is Alvorada, 6.0 km away.

Topography around Cachoeirinha

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

Within 3 km, the terrain around Cachoeirinha has only modest variations in elevation — a maximum elevation change of 64 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 348 m; within 80 km, large variations in elevation — a maximum elevation change of 988 m.

The land around Cachoeirinha is covered by artificial surfaces (42%) and trees (28%) within 3 km, trees (36%) and artificial surfaces (35%) within 16 km, and trees (47%) and grassland (20%) within 80 km.

3 km
64 m
16 km
348 m
80 km
988 m
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: Alvorada 6.0 km · Canoas 9.0 km · Gravataí 10 km · Esteio 13 km · Sapucaia do Sul 16 km · Porto Alegre 16 km · Viamão 16 km · Nova Santa Rita 21 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 Cachoeirinha (-29.9511°, -51.0939°, elevation 15 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).