Climate Insights for Montevideo

The climate in Montevideo is temperate. The average annual temperature is 16°C and approximately 1268mm of precipitation falls per year. April is the wettest month, receiving around 346mm of rainfall. Montevideo is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: February, January, December. The coldest months are June, July, August, when temperatures can drop to 10°C.

Montevideo sees moderate temperature variation throughout the year, ranging from 10°C to 25°C. The warmest month is February, when average highs reach 25°C and the mean temperature sits around 24°C. June is the coolest month, with minimum temperatures around 10°C and an average of 11°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Montevideo is a fairly wet location, receiving approximately 1268mm of precipitation annually, which averages out to around 106mm per month. The wettest month is April, averaging 346mm of rainfall. July and October also tend to see above-average precipitation. The driest month is January, with just 19mm. That's 327mm less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Montevideo is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently winter in Montevideo, which began on June 21, 2026. Montevideo is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 25°C, while the coldest stretch bottoms out in June near 10°C. Spring is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Montevideo is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 58mm per month. By contrast, June can be quite cold with temperatures dropping to 10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Montevideo based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.