Best Time to Visit Cartagena

Cartagena's calendar has two variables that move on opposite schedules, and mixing them up is the most common planning mistake. Rain follows the wet season, building from April, peaking around October at roughly 256 mm on the ERA5 reading, and dropping off fast through November and December. Trade winds run the other way: light for most of the wet season, then building from December and peaking in January and February, the driest months of the year. A traveller who books February for the dry weather and then finds the Rosario Islands crossing choppier than expected has run into the wind, not the rain.

Neither figure is officially confirmed at the knot level for this stretch of coast. The trade-wind pattern described here comes from tour-operator and kitesurf-site reporting rather than an official DIMAR or IDEAM bulletin, so it is printed as a seasonal pattern, not a guaranteed forecast for any single day. What is worth planning around either way: a January or February island day should expect chop even under a clear sky, and a September or October island day should expect the tour to be rescheduled or cancelled more often than in the dry months. The island day cost breakdown covers what happens to your money when a boat day is cancelled.

The three driest months on the ERA5 reading average under 20 mm of rain each, February the lowest at roughly 7 mm, which matches the pattern IDEAM's own annual summary describes, February as the driest month of the year. Average highs sit around 31°C in all three months, so 'dry season' in Cartagena means dry, not cool: humidity stays high and the ramparts and plazas offer little shade at midday.

This is the safest window for the Rosario Islands boat day on rain alone, though the trade winds peaking in these same months mean a choppier ride than in the calmer wet-season months. It is also the window that includes two demand spikes: the tail of the December-January holiday season and Hay Festival, whose next edition runs 28 to 31 January 2027. Outside those specific dates, January to March is a comparatively quiet stretch for hotel demand, since Cartagena has no official month-by-month visitor count published to compare against.

Rain returns in April, roughly 72 mm on the ERA5 reading, and builds through the wet season to a peak of about 256 mm in October before dropping sharply in December. September, October and November are the three wettest months, all averaging rain on more than 20 of their days by the same measure, though a Cartagena wet-season day is rarely a washout: the pattern is short, heavy tropical downpours rather than grey all-day rain, closer to what the Florence-style European wet season is not.

The practical effect is on the island day and the outdoor walking plan, not on indoor sightseeing. The fort, the museums and the churches inside the walled city are unaffected by an afternoon downpour, and the walled-city walk itself is short enough to dodge one shower. A Rosario Islands day booked for September through November should have a backup plan, since operators reschedule or cancel more often in this window than in the dry months, a pattern reported by operators rather than published as an official cancellation rate.

The Atlantic hurricane season runs officially from 1 June to 30 November, with the highest-risk window for this stretch of coast falling in August through October. Cartagena is not usually in a hurricane's direct path, but a storm passing well offshore can still push swell into the bay, delay boats and trigger navigation restrictions on the islands crossing. Hurricane Melissa in 2025, a Category 5 storm, generated roughly two metres of swell in Cartagena's waters without making landfall anywhere near the city, which is the pattern to expect: indirect weather, not a direct strike.

Official forecasts for the 2026 season point to 8 to 14 tropical storms, 3 to 6 hurricanes and 1 to 3 major hurricanes across the wider Atlantic basin. None of that is a Cartagena-specific number, and no official source publishes a city-level hurricane-impact forecast, so treat the season as a reason to check a live marine forecast before an August-to-October boat day, not as a reason to avoid the city outright.

Two fixed events reshape the calendar more than any weather pattern. The independence fiestas around 11 November run from preludes in October through a full schedule in mid-November: a bathing-suit parade on 6 November in Plaza de la Aduana, the formal session and floral offering on 11 November itself, concerts on 13 and 14 November, and the popular parade and Getsemaní cabildo on 15 November, with performers including Juan Luis Guerra, Grupo Niche and Silvestre Dangond confirmed for the 2026 edition. It is recognised as the city's Intangible Cultural Heritage and it fills the historic centre with parades and street parties for over a week. Rooms inside the wall sell out well ahead of the date and prices climb hard. This also falls inside the wettest stretch of the year on the ERA5 reading, so a traveller coming for the festival should expect both rain and crowds.

Hay Festival Cartagena, the city's international literature and arts festival, has its next edition running 28 to 31 January 2027, with tickets going on sale the November before. It draws international writers and a dedicated crowd for a few days each January, and hotel demand in the historic centre rises accordingly, though it is a smaller, more contained spike than the November fiestas. Neither event has a confirmed effect from the facts pack on whether Semana Santa (Holy Week) changes bus or boat schedules in Cartagena specifically, so no claim is made about it here. Check closer to the date if your trip falls in that week.