São Sebastião do Caí weather in February

In February, São Sebastião do Caí sees average daytime highs of 28°C and overnight lows near 19°C, with 180 mm of rain across 16.6 wet days and about 13.1 hours of daylight. It is the 2nd-warmest and 4th-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 27% of the time in February, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of February to 12 h 42 min by month's end. Set against the rest of the year, February is São Sebastião do Caí's 9th-clearest and 11th-windiest month. For the whole year in context, see São Sebastião do Caí's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
19°
11th coldest
Rainfall
180 mm
16.6 wet days
Daylight
13 h 06 min
7:08 AM – 8:12 PM
Cloud cover
61%
9th clearest
Wind
8 km/h
11th windiest
Solar energy
5.59 kWh/m²
Travel score
4.8
out of 10

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

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

A typical February day in São Sebastião do Caí reaches about 28°C in the afternoon and slips back to 19°C overnight — a 10°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, February runs on par with January and about 1°C warmer than March.

10°15°20°25°30°35°151015202528
Avg high (°C)Avg low (°C)
12919
22919
32919
42919
52919
62919
72919
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819

São Sebastião do Caí weather by month

How February compares with the rest of the year at a glance. February is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°20917.613.74.7
Feb28° / 19°18016.613.14.8
Mar27° / 18°15415.212.25.8
Apr24° / 15°14211.211.36.6
May21° / 12°13610.410.56.4
Jun19° / 10°14410.310.16.0
Jul19° / 18010.810.36.0
Aug21° / 11°14510.710.96.4
Sep22° / 12°17812.511.86.1
Oct24° / 14°21614.812.76.0
Nov26° / 16°16412.813.56.2
Dec28° / 18°18215.113.95.4

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 21% of February, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
14753
24951
34951
44951
54951
64951
74951
84951
94951
104951
114951
124852
134852
144753
154753
164654
174654
184753
194654
204654
214654
224654
234753
244753
254753
264852
274852
284753

Chance of precipitation in February

Any precipitation

São Sebastião do Caí gets around 180 mm of rain over 16.6 wet days in February. 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 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202528
Rain chance (%)
162
262
362
462
562
662
762
861
961
1060
1160
1260
1359
1459
1559
1659
1758
1858
1958
2057
2157
2257
2356
2456
2556
2655
2755
2855

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202528
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
116194133
216194034
316194033
416204033
516204033
616204032
726204032
826214031
926214130
1026214129
1126214228
1226214327
1326204427
1436204427
1537194526
1637194526
1737194526
1827194627
1927194527
2027194527
2127194427
2227204427
2327204327
2428214228
2528214228
2618224127
2718234127
2818234127

Wind in February

Winds average 8 km/h in February.

Across February, 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.

0246810151015202528
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

Sunrise & sunset in February

DaylightNight

Daylight runs from about 13 h 24 min at the start of February to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over February. Sunrise moves from 6:57 AM to 7:18 AM, and sunset from 8:21 PM to 8:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:578:21
213.46:588:21
313.46:598:20
413.36:598:20
513.37:008:19
613.37:018:18
713.37:028:18
813.27:038:17
913.27:038:16
1013.27:048:16
1113.27:058:15
1213.17:068:14
1313.17:078:13
1413.17:078:13
1513.17:088:12
1613.07:098:11
1713.07:108:10
1813.07:118:09
1913.07:118:09
2012.97:128:08
2112.97:138:07
2212.97:148:06
2312.87:148:05
2412.87:158:04
2512.87:168:03
2612.87:178:02
2712.77:178:01
2812.77:188:00

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 5.59 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 6.44 kWh/m² in December across the year — February's 5.59 kWh/m² falls in the middle.

0246151015202528
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
Planning a trip in February

Is February a good time to visit São Sebastião do Caí?

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

4.8
Sightseeing
11th-best month of the year
5.6
Beach & pool
6th-best month of the year

February is a reasonable time to visit São Sebastião do Caí for sightseeing.

What to pack for São Sebastião do Caí in February

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

In February, São Sebastião do Caí sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in São Sebastião do Caí in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in São Sebastião do Caí peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 13Jun 20UV 4
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in São Sebastião do Caí in February

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in São Sebastião do Caí is worst in September — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1217 µg/m³Dec 1910 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr12Good
May12Good
Jun11Good
Jul13Moderate
Aug16Moderate
Sep17Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is São Sebastião do Caí?

São Sebastião do Caí sits at 29.6°S, 51.4°W, 16 m above sea level, in Brazil. The nearest listed city is Montenegro, 14 km away.

Topography around São Sebastião do Caí

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Sebastião do Caí.

Within 3 km, the terrain around São Sebastião do Caí has only modest variations in elevation — a maximum elevation change of 107 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 512 m; within 80 km, large variations in elevation — a maximum elevation change of 988 m.

The land around São Sebastião do Caí is covered by trees (69%) within 3 km, trees (73%) within 16 km, and trees (62%) within 80 km.

3 km
107 m
16 km
512 m
80 km
988 m
treesgrasslandcroplandartificial surfaceswaterwetland
February weather nearby: Montenegro 14 km · Portão 18 km · Estância Velha 21 km · Ivoti 21 km · Novo Hamburgo 26 km · Dois Irmãos 28 km · São Leopoldo 29 km · Nova Santa Rita 31 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 São Sebastião do Caí (-29.5867°, -51.3756°, elevation 16 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).