Climate Insights for Santa Bárbara

The climate in Santa Bárbara is temperate. The average annual temperature is 12°C and approximately 223mm of precipitation falls per year. September is the wettest month, receiving around 33mm of rainfall. Santa Bárbara sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperatures in Santa Bárbara 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 25°C and the mean temperature sits around 20°C. June is the coolest month, with minimum temperatures around 1°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between January and February, with a 5°C shift in average temperatures.

Santa Bárbara is a quite dry location, receiving approximately 223mm of precipitation annually, which averages out to around 19mm per month. The wettest month is April, averaging 33mm of rainfall. August and September also tend to see above-average precipitation. The driest month is November, with just 0mm. That's 32mm 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.

Santa Bárbara is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 4km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in Santa Bárbara, which began on June 21, 2026. Santa Bárbara sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in January at around 25°C, while the coldest stretch bottoms out in June near 1°C. Autumn is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Santa Bárbara is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 10mm per month. By contrast, June can be quite cold with temperatures dropping to 1°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Santa Bárbara 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.