Climate Insights for Dos de Mayo

The climate in Dos de Mayo is warm and mild. The average annual temperature is 21°C and approximately 275mm of precipitation falls per year. October is the wettest month, receiving around 33mm of rainfall. Dos de Mayo 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: April, March, May. The coldest months are January, February, March, when temperatures can drop to 9°C.

Temperatures in Dos de Mayo vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is April, when average highs reach 30°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 9°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between February and March, with a 7°C shift in average temperatures.

Dos de Mayo is a quite dry location, receiving approximately 275mm of precipitation annually, which averages out to around 23mm per month. The wettest month is March, averaging 33mm of rainfall. April and July also tend to see above-average precipitation. The driest month is January, with just 0mm. That's 33mm less than March, 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.

Dos de Mayo 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 September, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

It is currently winter in Dos de Mayo, which began on June 21, 2026. Dos de Mayo 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 April at around 30°C, while the coldest stretch bottoms out in January near 9°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Dos de Mayo is during February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 25mm per month. By contrast, January can be quite cold with temperatures dropping to 9°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Dos de Mayo 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.