Temperature ( C) Avg. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person. The variation in temperatures throughout the year is 13.0 °C | 55.4 °F. June – August is the slowest season for tourism in Buenos Aires, so lodging and other accommodations may cost less than usual. July is on average the COOLEST month. At this time these are at about 12.50°C | 54.50°F. Playa Grande Map showing location of Buenos Aires (-34.61315, -58.37723). This advisory was last updated on Sep 24, 2019. Tourists are unlikely to visit Buenos Aires in June. The driest month is December, with 64 mm | 2.5 inch of rain. To see the daily range of temperatures have a look at the temperature max / min chart below. Months with the highest UV index are January and December (UV index 12). It is getting a little gray by now, and clouds should be seen forming. The graph below shows the daily range of temperatures for each month. There is 59 mm | 2.3 inch of precipitation in July. The best month to swim in the sea is in January when the average sea temperature is 23°C (73°F). All wind speeds are in knots. The warmest month (with the highest average high temperature) is January (30.4°C). Read below for more weather and travel details. Considering humidity, temperatures feel very enjoyable all year with a fair chance of precipitation about half of the year. Throughout the year, temperatures vary by 10.2 °C | 50.4 °F. With 22.80°C | 73.04°F, the water temperature reaches its highest value in the year around February 15. See average monthly temperatures below. After months of cold and gray skies, temps began rising to the 60s and 70s Fahrenheit. During this time tourism in Buenos Aires is at its peak and prices will be as well. The month with the highest number of rainy days is March (10 days). Maldonado Weather stations report no annual snow. The lowest average temperatures in the year occur in July, when it is around 10.6 °C | 51.1 °F. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported. A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy. Buenos Aires generally enjoys good weather year-round, making it a prime tourist destination. Buenos Aires weather statistics; Hottest month: January: 29.1 °C 84.4 °F: Driest month: July: 62 mm 2.4 ins: Sunniest month: February: 9.1 hrs: Coldest month: July: 14.8 °C 58.6 °F: Wettest month: March: 121 mm 4.8 ins: Warmest sea: February: 22.7 °C 72.9 °F Fall is fairly slow for tourism, which makes it a good time for those looking for deals. The bar chart below shows the average daily sunshine hours in Buenos Aires. In Buenos Aires, the annual water temperature (Río de la Plata) is on average 19.30°C | 66.74°F. Paso Carrasco It rains or snows a significant amount: approximately 6 days per month. Weather is perfect this time of year in Buenos Aires to be enjoyable for warm weather travelers. Daily highs (averaged for the month) usually give the best indication of the weather. The best month for swimming (with the highest average sea temperature) is January (25°C). There is a difference of 38 mm | 1 inch of precipitation between the driest and wettest months. The wettest month is January with an average of 100mm of rain. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. If you’re looking for the very warmest time to visit Buenos Aires, the hottest months are January, February, and then December. Whereas around July 25 the lowest average water temperatures are to be expected. Best Times to Travel› Argentina › Buenos Aires, Argentina, Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Buenos Aires are June, July, and then May. With an average of 23.6 °C | 74.5 °F, January is the warmest month. An average of 17.30°C | 63.14°F water temperatures is reached in Buenos Aires (Atlantic Ocean) over the year.