Weather in Montevideo

Review the current meteorological summary before setting off for Montevideo. Below, you will find detailed charts and a forecast to help you plan your time comfortably.

The climate of the city of Montevideo can be described as moderate continental, with a very noticeable contrast between seasons. The weather here varies from truly freezing winters to warm, and at times hot, summers. A wide range of temperatures is observed throughout the year, so the nature of your wardrobe will depend entirely on the month chosen for your trip to the USA.

The winter period, lasting from December to February, is characterised by stable negative temperatures, which average around -8°C...-9°C, and at night can drop below -13°C. Summer, however, brings long-awaited warmth: in June and July, the air often warms up to +28°C...+29°C, making this season the most comfortable for walking and exploring the city.

Spring and autumn serve as transitional periods with quite dynamic weather changes. In spring, especially in May and April, the number of days with precipitation increases noticeably, so travellers should be prepared for rain. September still retains pleasant summer warmth, but by November, the temperature drops sharply, reminding one of the approaching winter.

The climate in the city of Montevideo is distinguished by pronounced seasonality, typical of continental regions. The annual temperature range here is quite wide: from harsh frosts in winter to full summer heat. The coldest month is traditionally January with an average temperature of about -8.8°C, while night-time readings often drop to -13°C. The winter period, covering December, January, and February, requires travellers to have warm winter clothing, as even daytime temperatures often remain below freezing.

Summer, conversely, brings significant warming. The hottest month is considered to be July, when the average temperature reaches 23.5°C, and daytime maximums regularly approach the 29°C mark. June and August also delight with warmth, creating comfortable conditions for tourism with average figures above 22°C. This time of year can be characterised as pleasantly warm, sometimes hot, but without extreme sweltering heat, making summer the best time to visit the region.

A feature of the local temperature regime is noticeable daily fluctuations. This is particularly evident in the warm season and during the transitional months (May, September), when the difference between the daily maximum and the nightly minimum can be more than 10–11 degrees. For example, in May, after a warm day (about 21.7°C), the night may bring coolness down to 10°C. Therefore, when planning a trip in the spring or autumn months, it is worth being prepared for weather changes throughout the day.

The nature of precipitation in the city of Montevideo depends directly on the time of year. Winter months, especially January and February, are characterised by low temperatures, so precipitation here falls predominantly as snow. Although the volume of winter precipitation is relatively small, steady frosts contribute to the preservation of snow cover throughout the entire cold season.

With the arrival of warmth, the situation changes, and spring becomes the period of the most frequent rains. The wettest month in terms of inclement days is May, when precipitation can occur up to 13 days a month. In summer, in June and August, rains are also a common occurrence (about 11 days with precipitation), often passing as short but intense downpours typical for this part of the USA.

In autumn, the frequency of precipitation gradually decreases. September and October are generally drier compared to the spring-summer period, offering about 8 days with precipitation per month. By November, when the air temperature again drops to the freezing mark and below, rains begin to give way to snow, heralding the start of another winter.

Travelling to Montevideo requires a careful approach to packing your luggage, as the climate here features distinct seasonality. If your trip is planned for the winter months, be prepared for severe cold: the temperature often drops below -10°C, and sometimes reaches -13°C. At this time of year, thermal layers, a thick down jacket or a parka with a hood, a woollen sweater, as well as a hat, scarf, and gloves are absolutely essential. Pay special attention to footwear — it should be insulated, waterproof, and have a non-slip sole for safe walking on snow.

In summer, the picture changes: from June to August, the city becomes truly warm, and at times hot, when the thermometer rises to +28°C. For this season, light clothing made from natural fabrics is ideal: t-shirts, shorts, and light summer dresses. However, considering possible temperature drops, it is worth taking a light cardigan or windbreaker for evening walks. Also, sunglasses and cream with SPF will definitely come in handy in summer to protect your skin from the active sun.

Spring and autumn in this region of the USA can be changeable and rainy, especially April and May, when the number of days with precipitation increases. In the transitional seasons, the best solution is the principle of layering: wear a t-shirt, a jumper on top, and a mid-season jacket to easily adapt to weather changes throughout the day. Do not forget to pack a compact umbrella or a high-quality raincoat, as well as comfortable waterproof shoes for long walks along the city streets.