Climate Insights for Arroio Grande

The climate in Arroio Grande is warm and mild. The average annual temperature is 18°C and approximately 1,379 mm of precipitation falls per year. Arroio Grande receives a notable amount of rainfall throughout the year, including during its driest month. Arroio Grande is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, June, August, when temperatures can drop to 9°C.The climate in Arroio Grande is warm and mild. The average annual temperature is 65°F and approximately 54.3 in of precipitation falls per year. Arroio Grande receives a notable amount of rainfall throughout the year, including during its driest month. Arroio Grande is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, June, August, when temperatures can drop to 49°F.

Arroio Grande sees moderate temperature variation throughout the year, ranging from 9°C to 28°C. The warmest month is January, when average highs reach 28°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 9°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.Arroio Grande sees moderate temperature variation throughout the year, ranging from 49°F to 83°F. The warmest month is January, when average highs reach 83°F and the mean temperature sits around 75°F. July is the coolest month, with minimum temperatures around 49°F and an average of 54°F. Daily temperature variation is modest, with an average difference of 14°F between highs and lows. The sharpest temperature change occurs between April and May, with a 7°F shift in average temperatures.

Arroio Grande is a fairly wet location, receiving approximately 1,379 mm of precipitation annually, which averages out to around 115 mm per month. The wettest month is September, averaging 163 mm of rainfall. January and August also tend to see above-average precipitation. The driest month is February, with just 85 mm. That's 78 mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Arroio Grande is a fairly wet location, receiving approximately 54.3 in of precipitation annually, which averages out to around 4.5 in per month. The wettest month is September, averaging 6.4 in of rainfall. January and August also tend to see above-average precipitation. The driest month is February, with just 3.3 in. That's 3.1 in less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Arroio Grande is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Arroio Grande is moderately windy, with an average annual wind speed of 9mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is October, averaging 10mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in February, with average winds dropping to 8mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.

The best time to visit Arroio Grande is during February and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 90 mm per month. By contrast, January can be uncomfortably hot with highs reaching 28°C, while July is the coldest period with lows dropping to 9°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Arroio Grande is during February and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 72°F with modest rainfall averaging 3.5 in per month. By contrast, January can be uncomfortably hot with highs reaching 83°F, while July is the coldest period with lows dropping to 49°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Arroio Grande based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Arroio Grande based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.