Weather in Mendoza

Planning a trip or just curious about the weather in Mendoza? In this section, you will find the latest information on weather conditions, as well as detailed forecasts and charts.

The climate in Mendoza, located in Argentina, can be characterised as arid with four distinct seasons. A particular feature of the region is the very low amount of rainfall throughout the year. This makes the weather here predominantly sunny, but also implies significant temperature fluctuations between day and night, as well as between seasons.

The summer months, from December to February, in Mendoza are warm and mostly clear. The average maximum air temperature hovers around 25-26°C. Although a higher number of rainy days is recorded during this period (up to 19 days in January), the actual volume is extremely small, amounting to just 2-3 mm per month. Winter, covering June, July, and August, brings cool and very dry weather. Average daytime temperatures fluctuate around 11-14°C, while nighttime temperatures can drop to zero and even lower, especially in July, which is the coldest and driest month with zero precipitation.

Spring (September-November) and autumn (March-May) in Mendoza are transitional seasons with comfortable, moderate temperatures and consistently low rainfall levels. Overall, the weather in Mendoza is conducive to visiting practically all year round, provided you are prepared for the dry air and significant temperature contrasts. When planning a trip, it is worth considering these features and selecting clothing accordingly, especially for the evening time.

Mendoza experiences a distinct annual temperature variation, which is typical for a continental climate. The hottest month is usually January, when the average temperature is 20.3°C, and maximum daytime values reach an average of 25.8°C. December and February are also warm months with similar figures. The coldest period is considered to be July, with an average temperature of just 5.5°C and average minimum nighttime temperatures dropping to -0.3°C. June is also quite cool, with an average temperature of 6.1°C.

The summer months in Mendoza, covering the period from December to February, are characterised by pleasantly warm, and at times hot weather. Daytime temperatures at this time usually range from 24°C to almost 26°C, creating excellent conditions for walking and exploring the city. Nights bring noticeable coolness, with temperatures dropping on average to 13.5°C - 14.9°C. This means that even in the hottest season, the evening freshness allows you to take a break from the daytime heat.

Winter in Mendoza, especially in June and July, brings cool weather. During the day, the thermometer averages between 11.3°C and 11.6°C, but at night the temperature drops significantly, approaching zero (0.5°C in June, -0.3°C in July). An important feature of Mendoza's climate is the substantial diurnal temperature fluctuations throughout the year. The difference between daytime highs and nighttime lows is often 10-13°C. This means that even in warm seasons, evenings and nights can be quite cool, while in winter, the daytime sun can noticeably warm the air compared to the cold nights.

Mendoza has an arid climate with very low rainfall levels throughout the year. Nevertheless, periods of relatively higher and lower humidity can be distinguished. The summer months, from December to February, generally bring more days with precipitation, while winter, especially June and July, is the driest time of the year.

The highest amount of precipitation, although quite modest, falls in January and February – an average of 3 mm in each month. At the same time, January leads in the number of days with precipitation (about 19), followed by February (about 16 days) and December (about 14 days). Given the small total amount, precipitation during these periods is likely to be very light rain or drizzle rather than heavy downpours.

The driest period in Mendoza is mid-winter. In July, as a rule, no precipitation is observed at all (0 mm), and the number of "wet" days is minimal – only about 3. June is also very dry, with 1 mm of precipitation and approximately 4 days with it. Overall, from April to September, rainfall remains extremely low, usually not exceeding 1-2 mm per month, which highlights the arid nature of the region.

When planning a trip to Mendoza, it is important to consider the local climate features to make your holiday as comfortable as possible. Generally, the city is characterised by warm summer months and cool winters, with a small amount of rainfall throughout the year. However, even with a low total rainfall level, in some months (especially from December to February) there can be up to 19 "wet days", which implies light or short-term rains. Therefore, a light waterproof jacket or a compact umbrella may come in handy. Sunscreen, a hat, and sunglasses are mandatory practically all year round, as there are many sunny days here.

In summer (from December to February), the average temperature hovers around 20°C, and the maximum can reach 25-26°C. At this time, you will need light clothing: t-shirts, shorts, sundresses, as well as a light cardigan or sweater for evening walks. In winter (from June to August), the temperature drops significantly, with average values of 5-8°C, and minimums can drop to zero or even lower. For a winter trip, pack warm clothes: sweaters, fleece jackets, a warm coat, a hat, gloves, and a scarf. In spring (September-November) and autumn (March-May), the weather is transitional: it can be quite warm during the day, while evenings and nights are cool. In these seasons, the layering principle is ideal: t-shirts, long-sleeved shirts, light jackets, or vests that can be easily removed or put on depending on the weather.

Regardless of the time of year, comfortable walking shoes are your best companion in Mendoza, as the city and its surroundings are conducive to long walks and excursions. Given the temperature changes between day and evening, as well as between different seasons, clothing that can be combined and worn in layers will be the most practical choice. Do not forget an adapter for electrical appliances as well, if it is necessary for your equipment.