Arroio Grande weather
At 10:30 PM local time it was clear and 16°C (61°F). Light rain for 1 of the next 24 hours (under 1 mm/h, 0.1 mm total) — cloudy, but fine to be out. Best months for weather: Mar–Apr, Nov–Jan. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Arroio Grande, Rio Grande do Sul, Brazil.
Current conditions
- Clouds
- 13%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 1 of the next 24 hours (under 1 mm/h, 0.1 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season Mar–Apr, Nov–JanOff season Jun–Sep
About Arroio Grande weather
Is it raining in Arroio Grande right now?
No. It’s clear and 16° right now. Light rain for 1 of the next 24 hours (under 1 mm/h, 0.1 mm total) — cloudy, but fine to be out.
What’s the weather like in Arroio Grande this week?
Over the next 7 days, expect highs of 23–29° and lows of 11–18°. Rain is likely on 3 of 7 days (Saturday, Tuesday, Wednesday). The driest day looks like Sunday.
Has it been raining in Arroio Grande lately?
In the past 7 days, Arroio Grande had 3 rainy days and 14.9 mm of rain in total.
What should I pack for Arroio Grande?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes, sunscreen and a warm layer for the evenings.
Arroio Grande weather by month
When is the best time to visit Arroio Grande?
Based on weather alone, the best time to visit Arroio Grande is Mar–Apr, Nov–Jan, according to NASA's 2001–2025 climate averages. Jun–Sep tends to be the least pleasant. Average highs run from 16°C (61°F) in July to 30°C (86°F) in January.
What is the rainiest month in Arroio Grande?
September is the wettest month, with about 137 mm (5.4 in) of rain on average. December is the driest, with about 95 mm (3.7 in).
What is the hottest month in Arroio Grande?
January is the warmest, with average highs of 30°C (86°F) and lows of 17°C (63°F). July is the coolest, with highs of 16°C (61°F) and lows of 6°C (43°F).
Does Arroio Grande have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is September at about 137 mm (5.4 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months