Weather in Bariloche

Get the latest information about the weather in Bariloche. In this section, you will find up-to-date data, forecasts, and useful charts to help you plan your day.

The climate in Bariloche, located in Argentine Patagonia, can be described as temperate mountain. There are four distinct seasons here, each with its own characteristics, making the city an attractive destination to visit at different times of the year depending on the traveller's preferences.

The summer months (December-February) in Bariloche are relatively warm and dry, with an average temperature of around 13-14°C and maximum values reaching 19-20°C. This is the ideal time for outdoor activities and enjoying the lakes. Winter (June-August), on the other hand, is cold, with average temperatures close to zero (0.2°C - 1.0°C) and frequent minimum temperatures below freezing. Maximum daily temperatures in winter rarely rise above 3-4°C.

Precipitation in Bariloche is distributed unevenly throughout the year. The highest amount of precipitation and cloudy days occurs during the winter months, especially June, when an average of 8 mm of precipitation falls and there are about 20 rainy (or snowy) days. Conversely, the summer months are characterized by minimal precipitation (about 1 mm) and a low number of days with rainfall. The transition seasons – spring (September-November) and autumn (March-May) – show a gradual change in temperatures and precipitation levels.

Bariloche experiences a distinct shift in temperature regimes throughout the year. The warmest month is typically February, when the average temperature reaches 14.2°C, and daytime highs can rise to 20.3°C. January is also very warm, with an average temperature of 13.4°C and a maximum of around 19.5°C. In contrast, the coldest month is July, with an average temperature of just 0.2°C and nightly lows dropping to an average of -2.3°C. June and August are also cold, with average temperatures around 1°C and frequent night frosts.

Summer months (December-February) in Bariloche are characterized by pleasant warmth during the day and cool nights. Average daytime temperatures range from 17.6°C in December to 20.3°C in February, while nighttime temperatures drop to 5.7°C - 8.2°C. This creates significant daily temperature fluctuations, where a warm day is followed by a noticeably cooler night. Winter (June-August) brings cool and sometimes frosty weather. Daytime temperatures barely rise above freezing, averaging between 2.6°C and 3.9°C, while nighttime temperatures consistently drop below zero, reaching -1.2°C in June, -2.3°C in July, and -1.8°C in August. The transition seasons – spring (September-November) and autumn (March-May) – demonstrate a gradual shift in temperatures from winter cold to summer warmth and vice versa.

In the city of Bariloche, located in Argentina, there is a clearly defined seasonality in precipitation distribution. The summer months here are predominantly dry, while winter brings the bulk of the annual moisture. Although the total amount of precipitation is generally low, its frequency and nature change noticeably throughout the year.

The wettest period falls during the months from May to September. June stands out as the month with the most precipitation, averaging about 8 mm of rainfall and approximately 20 days of precipitation. Given that average temperatures in June, July, and August hover around 0°C, and minimums drop below freezing, winter precipitation in Bariloche is predominantly snow. May and September can also bring snowfall, sometimes mixed with rain, as the seasons change.

The driest months are January, February, and December, when precipitation is minimal – only about 1 mm, and the number of days with precipitation does not exceed 6-7. During this time, if precipitation does occur, it is usually light and brief rain. Spring (October-November) and autumn (March-April) are transitional periods. In autumn, the number of rainy days and the volume of precipitation gradually increase, while in spring, conversely, they decrease, preparing for the dry summer season.

When planning a trip to Bariloche, it is important to choose your wardrobe correctly, as the weather here can be changeable. The key principle is layering. Regardless of the season, evenings and mornings can be cool, so having multiple layers of clothing will allow you to comfortably adapt to temperature changes. Don't forget comfortable walking shoes, as Bariloche and its surroundings offer many scenic routes. Sunscreen and sunglasses will also be useful, especially in the mountains, even on cool days.

The summer months (December-February) in Bariloche are characterized by pleasant daytime temperatures, reaching an average of 19-20°C, however, nights remain cool (around 7-8°C). During this period, you will need light clothes for the day, such as t-shirts and shorts, but be sure to bring a sweater or a light jacket for evening walks. Precipitation is minimal, but a windbreaker may come in handy. In the autumn (March-May) and spring (September-November) months, the weather becomes cooler, with average maximum temperatures ranging from 6°C to 16°C. It is recommended to bring warm sweaters, a fleece jacket, a mid-season jacket, as well as a hat and gloves, especially for May and September. The number of rainy days increases, so a waterproof jacket or umbrella will be very useful.

Winter in Bariloche (June-August) is cold, with average temperatures around 0-1°C, often dropping below freezing at night. Maximum daytime temperatures rarely exceed 2-4°C. This time of year is characterized by the highest amount of precipitation and rainy (or snowy) days. If you are planning a trip in winter, be sure to take a warm winter jacket (preferably waterproof and windproof), thermal underwear, warm sweaters, a hat, a scarf, gloves, and waterproof shoes. Layering is especially important here to maintain warmth and comfort during outdoor activities.