Climate Insights for Alvear

The climate in Alvear is warm and mild. The average annual temperature is 21°C and approximately 1474mm of precipitation falls per year. Alvear receives a notable amount of rainfall throughout the year, including during its driest month. Alvear 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 11°C.

Temperatures in Alvear vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 32°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 11°C and an average of 15°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Alvear is a fairly wet location, receiving approximately 1474mm of precipitation annually, which averages out to around 123mm per month. The wettest month is October, averaging 176mm of rainfall. January and May also tend to see above-average precipitation. The driest month is July, with just 69mm. That's 107mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Alvear is mildly breezy, with an average annual wind speed of 18km/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 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in February, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.

It is currently autumn in Alvear, which began on March 20, 2026. Alvear is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 32°C, while the coldest stretch bottoms out in July near 11°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Alvear is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 79mm per month. By contrast, January can be uncomfortably hot with temperatures reaching 32°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 table below shows monthly climate averages for Alvear 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.