Balneário Arroio do Silva in Summer
In summer (December, January and February), Balneário Arroio do Silva sees average daytime highs around 26°C and overnight lows near 21°C, with 484 mm of rain over about 56 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels oppressive.
Summer is Balneário Arroio do Silva's weakest season of the year to visit on our travel score. For the whole year in context, see Balneário Arroio do Silva's year-round climate.
- Avg daytime high
- 26°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 484 mm
- 56 wet days
- Avg wind
- 12 km/h
- Travel score
- 5.4
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Balneário Arroio do Silva in Summer
Across summer, daytime highs hold fairly steady around 26°C.
A typical summer day in Balneário Arroio do Silva reaches about 26°C and drops to 21°C overnight. The warmest of the three months is February, the coolest December.
Balneário Arroio do Silva weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 22° | 189 | 20.3 | 13.6 | 5.2 |
| Feb | 26° / 22° | 156 | 19.5 | 13 | 5.0 |
| Mar | 26° / 21° | 136 | 18.1 | 12.2 | 5.6 |
| Apr | 24° / 19° | 100 | 12.4 | 11.3 | 6.6 |
| May | 21° / 16° | 130 | 11.1 | 10.6 | 6.4 |
| Jun | 19° / 14° | 99 | 10.2 | 10.2 | 6.2 |
| Jul | 18° / 13° | 110 | 10.1 | 10.3 | 6.1 |
| Aug | 19° / 14° | 104 | 10 | 11 | 6.3 |
| Sep | 20° / 15° | 132 | 12.5 | 11.8 | 5.9 |
| Oct | 22° / 17° | 152 | 15.9 | 12.7 | 5.6 |
| Nov | 23° / 18° | 135 | 14.9 | 13.4 | 6.1 |
| Dec | 25° / 20° | 139 | 16.4 | 13.8 | 5.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Balneário Arroio do Silva gets around 484 mm of rain over 56 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 42 min in early December to 12 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Is summer a good time to visit Balneário Arroio do Silva?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Balneário Arroio do Silva for sightseeing.
What to pack for Balneário Arroio do Silva in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Balneário Arroio do Silva sees daytime highs around 26°C and nights near 21°C. Pack rain gear and sun protection. Worth having: light clothes. About 56 days see rain.
Sea temperature near Balneário Arroio do Silva in Summer
The nearest coast averages about 24°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in February at about 25°C and coldest in August near 17°C.
It's comfortable for a long swim from Nov 1 to May 27 — about 6.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 25 | 25 | 23 | 21 | 19 | 17 | 17 | 18 | 19 | 21 | 23 |
| Comfort | Warm | Warm | Warm | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 25 | Warm |
| Mar | 25 | Warm |
| Apr | 23 | Refreshing |
| May | 21 | Refreshing |
| Jun | 19 | Cool |
| Jul | 17 | Cool |
| Aug | 17 | Cool |
| Sep | 18 | Cool |
| Oct | 19 | Cool |
| Nov | 21 | Refreshing |
| Dec | 23 | Refreshing |
UV index in Balneário Arroio do Silva in Summer
Clear-sky midday UV across summer averages 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 Balneário Arroio do Silva peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 10 | 8 | 5 | 4 | 4 | 6 | 8 | 10 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Very high | Moderate | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 10 | Extreme |
| Apr | 8 | Very high |
| May | 5 | Moderate |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Balneário Arroio do Silva?
Balneário Arroio do Silva sits at 29.0°S, 49.4°W, 1 m above sea level, in Brazil. The nearest listed city is Araranguá, 9.0 km away.
Topography around Balneário Arroio do Silva
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Balneário Arroio do Silva.
Within 3 km, the terrain around Balneário Arroio do Silva has only modest variations in elevation — a maximum elevation change of 18 m around an average of 5 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 259 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,577 m.
The land around Balneário Arroio do Silva is covered by water (39%) and grassland (23%) within 3 km, water (49%) within 16 km, and trees (34%), water (32%) and grassland (21%) within 80 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
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 Balneário Arroio do Silva (-28.9869°, -49.4173°, elevation 1 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.