Climate Overview
The climate in Cabo Rojo is hot. The average annual temperature is 27°C and approximately 606mm of precipitation falls per year. September is the wettest month, receiving around 124mm of rainfall. Cabo Rojo is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are March, February, January, when temperatures can drop to 24°C.
Temperature
Cabo Rojo has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. March is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Cabo Rojo is a relatively dry area, receiving approximately 606mm of precipitation annually, which averages out to around 50mm per month. The wettest month is September, averaging 124mm of rainfall. November and October also tend to see above-average precipitation. The driest month is February, with just 17mm. That's 106mm less than September, 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.
Wind
Cabo Rojo is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4km/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.
Seasons
92 days until Autumn
It is currently summer in Cabo Rojo, which began on June 21, 2026. Cabo Rojo 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 29°C, while the coldest stretch bottoms out in March near 24°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 24 to 28°C. Rainfall is relatively light, with around 100mm over the season and a monthly average of 33mm. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 29°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 303mm across the season with a monthly average of 101mm. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 27°C. Rainfall is relatively light, with around 57mm over the season and a monthly average of 19mm. Winds are generally light, averaging 5km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Cabo Rojo 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.
