Things to Do in Cayenne in March
March weather, activities, events & insider tips
March Weather in Cayenne
Is March Right for You?
Advantages
- March sits in the tail end of the dry season, meaning you get reliable sunshine most mornings with predictable afternoon showers - perfect for planning beach time from 8am-2pm and indoor activities later. The rain typically rolls in around 3-4pm, lasts 20-30 minutes, then clears out.
- Space tourism launches from the Guiana Space Centre ramp up in March as weather conditions stabilize. You can watch Ariane rocket launches from public viewing areas 15 km (9.3 miles) away - something genuinely unique to French Guiana that you won't experience anywhere else in South America.
- Hotel and tour prices drop 25-35% compared to February's Carnival peak, but the weather is actually better for outdoor activities. You're essentially getting shoulder season pricing with near-peak season conditions, which is rare in French Guiana.
- March marks the beginning of leatherback turtle nesting season on beaches like Awala-Yalimapo, 250 km (155 miles) northwest. The nesting activity picks up significantly in the second half of March, and you'll encounter far fewer tourists than during the April-July peak months.
Considerations
- The humidity hovers around 70% but feels higher after rain, and it's the kind that makes your clothes stick to your skin within minutes of leaving air conditioning. Cotton dries slowly, and anything leather or paper gets that damp tropical feel by day three.
- March sits in an awkward transition period where the dry season is ending but the heavy rains haven't fully started, meaning weather patterns can be genuinely unpredictable. You might get three consecutive sunny days or suddenly face a full day of downpours - the 10 rainy days average doesn't tell you when they'll hit.
- Several Creole cultural events and festivals happen in February (Carnival) and April onwards, so March itself is relatively quiet on the cultural calendar. If you're specifically after festivals and local celebrations, you're visiting in a gap period.
Best Activities in March
Guiana Space Centre Launch Viewing
March typically sees 2-3 scheduled launches as the European Space Agency takes advantage of improving weather conditions. The experience of watching an Ariane 5 or Vega rocket launch from Kourou is genuinely spectacular - the ground shakes from 15 km (9.3 miles) away, and night launches light up the entire coast. March weather is stable enough for launches but not yet in the heavy rain season that causes delays. The public viewing area at Carapa opens 3-4 hours before launch, and locals bring coolers and make an evening of it.
Tresor and Kaw Nature Reserve Boat Expeditions
The Kaw marshes, 70 km (43 miles) southeast of Cayenne, are at their best in March when water levels are still high from rainy season but access routes are reliable. You'll see caimans, capybaras, and hundreds of bird species in what's essentially French Guiana's Amazon wetland. March mornings are cooler (relatively speaking - still 23°C or 74°F at dawn) making the 6am departures more comfortable, and afternoon rains actually enhance wildlife viewing as animals become more active.
Iles du Salut (Devil's Island) Day Trips
The infamous prison islands where Papillon was held are 15 km (9.3 miles) offshore, and March offers the calmest seas you'll get outside of September-October. The 90-minute boat crossing can be genuinely rough during other months, but March typically sees 1-1.5 meter (3-5 foot) swells maximum. You'll spend 4-5 hours exploring Ile Royale and Ile Saint-Joseph, walking through crumbling prison buildings overtaken by jungle. The combination of dark history and stunning tropical scenery is surreal.
Cayenne Market and Creole Food Exploration
The central market on Avenue de la Liberte operates Wednesday through Saturday mornings (6am-1pm), and March brings seasonal fruits like corossol (soursop) and fruit de la passion (passion fruit) at peak ripeness. The prepared food stalls serve authentic Creole dishes - bouillon d'awara (palm fruit soup), colombo (curry), and accras (cod fritters) - for 4-8 euros per plate. March mornings are the most comfortable time to wander the market before humidity peaks around 11am.
Montagne des Singes and Rainforest Hiking
The trails around Roura, 25 km (15.5 miles) south of Cayenne, take you into primary rainforest where you'll actually hear howler monkeys before you see them. March trails are still accessible (unlike April-June when some routes flood), but muddy enough that you'll need proper hiking boots. The Sentier du Rorota is a 6 km (3.7 mile) loop taking 3-4 hours, passing massive fromager trees and crossing streams on log bridges. Afternoon rains cool things down around 3pm, which actually makes the second half of hikes more pleasant.
Plage de Remire-Montjoly Beach and Coastal Activities
The beaches just east of Cayenne offer surprisingly good swimming in March when the Atlantic is relatively calm. Plage de Remire-Montjoly has the best facilities and clearest water, though be aware that French Guiana beaches have strong currents year-round - swim only in marked areas. March mornings (8am-noon) give you 4 hours of reliable sunshine before afternoon clouds roll in. The beach crowd is almost entirely locals in March, so you'll get an authentic sense of how Cayennais spend weekends.
March Events & Festivals
Space Launch Schedule
While not a festival, the Arianespace launch schedule typically includes 2-3 launches in March as weather conditions stabilize. Each launch becomes a community event with locals gathering at viewing areas, and the night launches are genuinely spectacular. Check the Guiana Space Centre website 4-6 weeks ahead for confirmed dates, as schedules shift based on technical requirements and weather.