Climate Insights for Santiago de Cao

The climate in Santiago de Cao is warm and mild. The average annual temperature is 19°C and approximately 69mm of precipitation falls per year. March is the wettest month, receiving around 22mm of rainfall. Santiago de Cao sits near the equator, so seasonal temperature differences are minimal throughout the year.

Santiago de Cao has relatively stable temperatures year-round, staying within a 10°C range. February is the warmest month, though highs remain moderate at 25°C with a mean of 23°C. September is the coolest month, with minimum temperatures around 15°C and an average of 17°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.

Santiago de Cao is a quite dry location, receiving approximately 69mm of precipitation annually, which averages out to around 6mm per month. The wettest month is March, averaging 22mm of rainfall. February and April also tend to see above-average precipitation. The driest month is May, with just 1mm. That's 21mm 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.

Santiago de Cao is moderately windy, with an average annual wind speed of 20km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 22km/h in spring, 19km/h in summer, 19km/h in autumn.

It is currently autumn in Santiago de Cao, which began on March 20, 2026. Santiago de Cao sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 25°C, while the coldest stretch bottoms out in September near 15°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Santiago de Cao is during January, 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 19°C with modest rainfall averaging 6mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Santiago de Cao 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.