Argentina experiences a variety of climates. Very hot, humid summers which often result in a lot of swamp lands and mild winters are the main characteristics of the northern part of the country,  including latitudes in and below the Tropic of Capricorn. During the winter season the area is also subject to periodic droughts. In sharp contrast summers in the Central region of Argentina are hot and frequently marred by thunderstorms, while the winters are considerably cooler. These thunderstorms are also frequent in Western Argentina and they are so ferocious they actually produce some of the world’s largest hail. Summers are warm and the winters are cold with heavy snowfall in the country’s southern regions, conditions even more pronounced in mountainous zones. Cooler conditions dominate weather patterns at all latitudes of the higher elevations areas.

Argentina is also infamous for recording both the coldest and hottest temperature extremes in South America, A record high temperature of 52.3 °C (126.1 °F), was recorded at Villa de María, Córdoba on January 25, 1989, and the lowest temperature recorded was −40 °C (−40.0 °F) at Valle de los Patos Superior, San Juan, July 8, 1966.

Locally known as the Sudestada (literally “southeastern”) follows similar patter with Noreaster, the main difference being the distinctive lack of snowfall, although snow does fall but only on vary rare occasions. Both climates are renewed for their deep winter low pressure system. The sudestada is most commonly found during late autumn and winter, especially along the coasts of central Argentina and in the Río de la Plata estuary with moderates cold temperatures, very heavy rains, rough seas, and coastal flooding.

Argentina’s southern regions, particularly the far south, are characterised by the extremely long periods of daylight they experience from November to February (up to fifteen hours), and equally extended nights from May to June. All of Argentina uses UTC-3 time zone.

SEASONS

Winter
Winter temperatures are moderated by major winds that blow through the country, The Pampero is a cool wind that blows on the flat plains of Patagonia and the Pampas after a cold front while the Zonda is hot and dry wind that affects west-central Argentina. A warm wind that blows from the north in mid and late winter creates mild conditions.

Spring
Argentina’s spring season is generally mild but very short in the northern parts of the country, while September is characterised by extremely hot temperatures with highs usually higher than those experienced throughout the summer period. Thunderstorms and hailstorms are also frequent.

Summer
Temperatures are more diverse during the summer season, fluctuating between averages of 9 ºC in the south and 27 ºC in the north. During a rather short period the northern parts of Argentina experience extremely hot conditions, with temperatures soaring up 45 ºC. These heat waves are frequently intercepted by cold from that lower temperatures as much as 15 ºC.

Autumn
Most parts of Argentina remain mild and rainy through out the autumn season, which is considered the best time to visit the central and northern parts.