Climate Insights for Yerba Buena

The climate in Yerba Buena is warm and mild. The average annual temperature is 19°C and approximately 1534mm of precipitation falls per year. January is the wettest month, receiving around 293mm of rainfall. Yerba Buena 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, December, November. The coldest months are July, June, August, when temperatures can drop to 6°C.

Temperatures in Yerba Buena vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 6°C and an average of 11°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Yerba Buena is a fairly wet location, receiving approximately 1534mm of precipitation annually, which averages out to around 128mm per month. The wettest month is January, averaging 293mm of rainfall. February and March also tend to see above-average precipitation. The driest month is August, with just 19mm. That's 275mm less than January, 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.

Yerba Buena 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 October, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently winter in Yerba Buena, which began on June 21, 2026. Yerba Buena 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 30°C, while the coldest stretch bottoms out in July near 6°C. Spring is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Yerba Buena is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 36mm per month. By contrast, January can be uncomfortably hot with highs reaching 30°C, while July is the coldest period with lows dropping to 6°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 Yerba Buena 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.