Isla del Rosario Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Isla del Rosario.
Climate overview of Isla del Rosario
The climate in Isla del Rosario, Colombia, is remarkably consistent, with temperatures year-round averaging 29°C (84°F). The warmest month is June at 30°C (86°F), and the coolest is October at 29°C (84°F).
With around 1507 mm (59 in) of annual rainfall, Isla del Rosario has a notably wet climate. However, this rainfall is not evenly distributed — the city has distinct dry (January to March) and wet (September to November) seasons. The wettest month is October. The most sunshine falls in January, with an average of 9.0 hours of daily sunshine.
Isla del Rosario Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Isla del Rosario — and find the best time to visit.
Monthly Temperature in Isla del Rosario
In Isla del Rosario temperatures are generally consistent throughout the year. Average daytime temperatures reach a very warm 30°C (86°F) in June. In October, the coolest month of the year, temperatures drop to a comfortable 29°C (84°F).
At night, temperatures range from around 27°C (81°F) in June to 26°C (79°F) in October.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Isla del Rosario
Isla del Rosario experiences significant rainfall throughout the year, averaging 1507 mm (59 in) of precipitation annually. Isla del Rosario can be quite wet during October, receiving approximately 293 mm (12 in) of precipitation over 15 rainy days.
In contrast, during the driest month (February), you will experience much drier conditions, with 5.2 mm (0.2 in) of precipitation spread across a single rainy day days. For more details, please visit our Isla del Rosario Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Isla del Rosario
Isla del Rosario experiences moderate variation in sunshine hours across the seasons. With 9.0 hours daily sunshine in January, it dips to 5.7 hours in October, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Isla del Rosario by Month
The city experiences its highest humidity in October, reaching 83%. In February, the humidity drops to its lowest level at 79%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Isla del Rosario
To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable.
Be aware that June, August, September, October and November constitute the rainy season, with significant precipitation. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Isla del Rosario
What is the best time to visit Isla del Rosario?
January, February, March, April and December typically offer the most optimal weather in Isla del Rosario. In contrast, September and October tend to have less optimal conditions. Isla del Rosario has distinct dry (January to March) and wet (September to November) seasons.
What temperatures can I expect in Isla del Rosario?
Daytime highs range from 29°C (84°F) in October to 30°C (86°F) in June. Nighttime lows range from 26°C (79°F) to 27°C (81°F). Temperatures stay relatively stable year-round.
How much rain does Isla del Rosario get?
Annual rainfall is around 1507 mm (59 in). October is the wettest month with 293 mm (12 in), while February is the driest with 5.2 mm (0.2 in).
How sunny is Isla del Rosario?
Isla del Rosario receives around 2,524 hours of sunshine per year. January is the sunniest month with 270 hours, while October is the cloudiest with just 170 hours. Overall, Isla del Rosario enjoys abundant sunshine.
Isla del Rosario 3-Day Forecast
Isla del Rosario 3-Day Forecast
Isla del Rosario on the map
Isla del Rosario is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
Cartagena
31°C (88°F) Santa Marta29°C (84°F) San Andrés29°C (84°F) Cali
28°C (82°F) Medellín25°C (77°F) Pereira24°C (75°F) Bogotá20°C (68°F) Villa de Leyva
20°C (68°F) 
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