Climate Insights for Dos de Mayo

The climate in Dos de Mayo is warm and mild. The average annual temperature is 20°C and approximately 1911mm of precipitation falls per year. October is the wettest month, receiving around 231mm 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: January, February, December. The coldest months are June, July, September, when temperatures can drop to 8°C.

Temperatures in Dos de Mayo vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 26°C. June is the coolest month, with minimum temperatures around 8°C and an average of 13°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.

Dos de Mayo is a fairly wet location, receiving approximately 1911mm of precipitation annually, which averages out to around 159mm per month. The wettest month is October, averaging 231mm of rainfall. March and November also tend to see above-average precipitation. The driest month is June, with just 21mm. That's 210mm less than October, 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 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/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 January at around 31°C, while the coldest stretch bottoms out in June near 8°C. Spring is next, beginning on September 23, 2026 — 63 days from now.

The best time to visit Dos de Mayo is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 57mm per month. By contrast, January can be uncomfortably hot with highs reaching 31°C, while June is the coldest period with lows dropping to 8°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 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.