Climate Insights for Santiago de Cuba

The climate in Santiago de Cuba is hot. The average annual temperature is 26°C and approximately 704mm of precipitation falls per year. May is the wettest month, receiving around 120mm of rainfall. Santiago de Cuba is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 21°C.

Santiago de Cuba has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Santiago de Cuba is a relatively dry area, receiving approximately 704mm of precipitation annually, which averages out to around 59mm per month. The wettest month is May, averaging 120mm of rainfall. October and September also tend to see above-average precipitation. The driest month is February, with just 13mm. That's 107mm less than May, 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 Cuba is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap 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 16km/h in winter, 15km/h in spring, 14km/h in summer, 12km/h in autumn.

It is currently spring in Santiago de Cuba, which began on March 20, 2026. Santiago de Cuba is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 31°C, while the coldest stretch bottoms out in February near 21°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

The best time to visit Santiago de Cuba is during January, February and March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 15mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

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