Arroio Grande in Spring
In spring (September, October and November), Arroio Grande sees average daytime highs around 22°C and overnight lows near 14°C, with 355 mm of rain over about 29 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs climb from about 19°C in early September to 25°C by late November. The sky is clear or mostly clear about 30% of the time across spring, and the air most often feels dry.
Spring is Arroio Grande's 2nd-best season to visit on our travel score. For the whole year in context, see Arroio Grande's year-round climate.
- Avg daytime high
- 22°C
- 3rd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 355 mm
- 29 wet days
- Avg wind
- 15 km/h
- Travel score
- 6.5
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Arroio Grande in Spring
Over the season highs climb from about 19°C in early September to 25°C by late November.
A typical spring day in Arroio Grande reaches about 22°C and drops to 14°C overnight. The warmest of the three months is November, the coolest September.
Arroio Grande weather by month
How the three spring months (September, October and November) 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 | 28° / 20° | 111 | 10.6 | 13.9 | 6.3 |
| Feb | 27° / 20° | 107 | 11.2 | 13.2 | 6.1 |
| Mar | 26° / 19° | 103 | 9.9 | 12.2 | 6.7 |
| Apr | 23° / 16° | 124 | 9.8 | 11.2 | 6.9 |
| May | 20° / 13° | 96 | 9 | 10.4 | 6.4 |
| Jun | 17° / 10° | 110 | 9.3 | 9.9 | 5.5 |
| Jul | 16° / 9° | 107 | 9.3 | 10.1 | 5.3 |
| Aug | 18° / 10° | 107 | 8.9 | 10.8 | 6.0 |
| Sep | 19° / 12° | 124 | 10.2 | 11.8 | 6.0 |
| Oct | 22° / 14° | 133 | 10.4 | 12.8 | 6.4 |
| Nov | 24° / 16° | 98 | 8.2 | 13.7 | 7.2 |
| Dec | 27° / 18° | 96 | 9.5 | 14.1 | 6.8 |
Cloud cover in Spring
The sky is clear or mostly clear about 30% of the time across spring.
Chance of precipitation in Spring
Arroio Grande gets around 355 mm of rain over 29 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 15 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 18 min in early September to 13 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.2 kWh/m².
Is spring a good time to visit Arroio Grande?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Arroio Grande for sightseeing.
What to pack for Arroio Grande in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Arroio Grande sees daytime highs around 22°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 29 days see rain.
UV index in Arroio Grande in Spring
Clear-sky midday UV across spring averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arroio Grande peaks around January 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 10 | 6 | 4 | 3 | 3 | 4 | 7 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | High | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 7 | High |
| Oct | 7 | High |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Arroio Grande?
Arroio Grande sits at 32.2°S, 53.1°W, 31 m above sea level, in Brazil. The nearest listed city is Jaguarão, 46 km away.
Topography around Arroio Grande
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arroio Grande.
Within 3 km, the terrain around Arroio Grande has only modest variations in elevation — a maximum elevation change of 62 m around an average of 33 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 240 m; within 80 km, significant variations in elevation — a maximum elevation change of 480 m.
The land around Arroio Grande is covered by cropland (34%), trees (27%) and grassland (26%) within 3 km, cropland (48%), grassland (25%) and trees (24%) within 16 km, and grassland (35%), cropland (22%) and trees (20%) 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 Arroio Grande (-32.2375°, -53.0869°, elevation 31 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.