Climate Insights for Mariano Roque Alonso

The climate in Mariano Roque Alonso is warm and mild. The average annual temperature is 23°C and approximately 1336mm of precipitation falls per year. Mariano Roque Alonso receives a notable amount of rainfall throughout the year, including during its driest month. Mariano Roque Alonso 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 14°C.

Mariano Roque Alonso sees moderate temperature variation throughout the year, ranging from 14°C to 34°C. The warmest month is January, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 14°C and an average of 18°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.

Mariano Roque Alonso is a fairly wet location, receiving approximately 1336mm of precipitation annually, which averages out to around 111mm per month. The wettest month is October, averaging 190mm of rainfall. November and April also tend to see above-average precipitation. The driest month is July, with just 44mm. That's 146mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Mariano Roque Alonso is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 13km/h in spring, 11km/h in summer, 11km/h in autumn.

It is currently winter in Mariano Roque Alonso, which began on June 21, 2026. Mariano Roque Alonso 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 34°C, while the coldest stretch bottoms out in July near 14°C. Spring is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Mariano Roque Alonso is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 68mm per month. By contrast, January can be uncomfortably hot with temperatures reaching 34°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Mariano Roque Alonso 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.