The area averages lows at 37 F and highs of 68 F. Temperatures drop significantly in the evening, so even mild days may turn to cold evenings. The lowest daily average low temperature is 47Â°F on July 18. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Months with the highest relative humidity are June and July (73%). The warmest month (with the highest average high temperature) is January (19.2°C). The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. The month with shortest days is June (Average daylight: 9.9h). This is also a great month to visit Buenos Aires, go whale-watching along the Atlantic coast, and explore desert landscapes, salt flats, waterfalls, and starry skies in the north. Summers are the warmest and wettest season in most of the country except in most of Patagonia where it is the driest season. Still, those who brave Patagonia can luck out with gorgeous winter landscapes without the infamous wind of summer, though transport services tend to run at a minimum. The coldest month (with the lowest average low temperature) is July (7.7°C). During this time tourism in Buenos Aires is at its peak and prices will be as well. The month with the highest average low temperature is January (7.8°C). Time zones for airports and weather stations are provided by AskGeo.com . The average sea temperature around Buenos Aires, Argentina in July is 12°C. The lowest daily average high temperature is 57Â°F on July 18. How sunny is it in Argentina in July? The average hourly temperature, color coded into bands. Argentina's climate this time of year tends to be cooler overall but weather can vary depending on where you travel. Buenos Aires is located near a large body of water (e.g., ocean, sea, or large lake). July is Argentina's peak winter month when ski resorts heat up in Patagonia and Mendoza. Within 10 miles also contains only modest variations in elevation (243 feet). There are usually 7 days with some rain in Buenos Aires, Argentina in July and the average monthly rainfall is 62mm. The chance that a given day will be muggy in Buenos Aires is essentially constant during July, remaining around 0% throughout. The month with the lowest number of rainy days is December (2 days). For travelers interested in snow sports, Argentina has several great ski resorts sprinkled around Patagonia and near the wine region of Mendoza. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents.