Things to Do in Castries in December
December weather, activities, events & insider tips
December Weather in Castries
Is December Right for You?
Advantages
- Peak dry season conditions with December being one of the driest months - you'll get maybe 10 rainy days total, and when showers do hit, they typically last 20-30 minutes in late afternoon before clearing out. Perfect for beach days and outdoor exploring without constantly checking the forecast.
- Cruise ship season brings Castries to life with the harbor buzzing 3-4 days per week. The upside? Markets stay open longer, vendors are stocked with fresh produce and crafts, and the waterfront restaurants actually have their full menus available. Arrive early morning (before 10am) to beat the cruise crowds at popular spots like the Central Market.
- Trade winds are reliably strong in December, which keeps the humidity from feeling oppressive despite that 70% reading. Temperatures hover around 26-29°C (79-84°F) during the day, cooling to a comfortable 23°C (73°F) at night - genuinely pleasant for sleeping without cranking the AC.
- Carnival preparation season means you'll catch rehearsals, calypso tent performances, and costume-making workshops around town. It's not the main July event, but locals are in festive spirits and you can actually interact with mas camps without the overwhelming crowds. Steel pan practice sessions echo through neighborhoods most evenings.
Considerations
- High season pricing hits hard from mid-December through early January. Accommodation rates jump 30-50% compared to November, and flight prices from North America and Europe peak around December 20-28. If you're budget-conscious, the first two weeks of December offer better value than the Christmas/New Year period.
- Cruise ship days (typically Monday, Wednesday, Friday, Saturday) create serious bottlenecks at Castries Market, Pigeon Island, and the Castries-Gros Islet highway between 10am-3pm. You'll find yourself stuck in unexpected traffic and competing for taxis. Plan major sightseeing for non-cruise days or very early mornings.
- Sargassum seaweed can still wash up on east coast beaches in December, though it's less severe than summer months. Reduit Beach and other northwest-facing beaches stay clear, but check conditions before heading to beaches near Vieux Fort or the Atlantic side. Hotels usually clean their beaches daily, but public beaches might have piles.
Best Activities in December
Pigeon Island National Landmark exploration
December's dry weather makes this the ideal month for hiking the 0.8 km (0.5 mile) trail to Fort Rodney's summit without dealing with muddy paths or afternoon downpours. The 111 m (364 ft) climb rewards you with panoramic views of Martinique to the north - visibility is exceptional during dry season. Go before 9am or after 3pm to avoid cruise ship groups and the midday heat. The UV index hits 8, so early morning is genuinely more comfortable. The ruins are fascinating for history enthusiasts, and the beach at the base is perfect for cooling off after your hike.
Catamaran sailing to Soufriere
The Caribbean Sea is at its calmest in December with trade winds providing perfect sailing conditions without the chop you get in windier months. Full-day catamaran trips down the west coast to see the Pitons, visit Sulphur Springs, and snorkel at Anse Chastanet offer the best value for covering multiple attractions. December visibility underwater averages 18-24 m (60-80 ft) - you'll actually see the reef fish clearly. Most tours include lunch and rum punch, departing around 8am and returning by 5pm.
Castries Central Market and Vendors Arcade browsing
Saturday mornings transform the market into the island's social hub where locals actually shop for provisions. December brings peak harvest for breadfruit, christophene, and local spices. The covered market stays relatively cool even with 70% humidity, and vendors are in excellent spirits during the festive season. You'll find fresh cocoa sticks, vanilla pods, cinnamon bark, and nutmeg at prices far below resort gift shops. The adjacent Vendors Arcade has handmade crafts, but quality varies significantly - look for items marked with the Saint Lucia Bureau of Standards label.
Rainforest hiking and waterfall tours
December sits right in the sweet spot where trails have dried out from the October-November rains but the rainforest canopy stays lush and green. The Enbas Saut Trail to the waterfall involves stream crossings that are actually manageable in dry season - in wet months, they can be waist-deep and sketchy. Temperatures under the canopy stay around 24-26°C (75-79°F) with higher humidity, but you're shaded from that UV index 8 sun. Morning hikes (starting 7-8am) offer the best chance of spotting the Saint Lucia parrot, though sightings are never guaranteed.
Friday night Gros Islet street party
This weekly street festival peaks in December when locals are in Carnival prep mode and tourists swell the crowds. The entire village shuts down to traffic around 8pm, with grilled fish and chicken vendors lining the streets, sound systems pumping soca and reggae, and locals lime-ing (hanging out) until 2-3am. December brings cooler evening temperatures around 24-25°C (75-77°F) with those trade winds keeping things comfortable. It's genuinely one of the most authentic cultural experiences available - not manufactured for tourists, though plenty attend.
Snorkeling at Anse Cochon or Anse Chastanet
December delivers the year's best underwater visibility with calm seas and minimal runoff from the now-dormant rainy season. These protected bays on the west coast offer easy shore access to healthy reefs 5-15 m (16-50 ft) from the beach. Water temperature hovers around 27-28°C (81-82°F) - comfortable for 45-60 minutes without a wetsuit. You'll likely spot parrotfish, angelfish, trumpet fish, and occasionally sea turtles. The calm conditions make this perfect for beginners or families with older children.
December Events & Festivals
National Day celebrations
December 13th marks Saint Lucia's National Day commemorating the feast of Saint Lucy. Expect official ceremonies at Derek Walcott Square in Castries with cultural performances, military parades, and speeches. Schools participate in performances showcasing traditional dance and music. It's more low-key than Independence Day in February, but offers genuine insight into local pride and culture. Many businesses close for the day, so plan accordingly.
Christmas preparations and Carol services
Throughout December, Catholic churches across Castries hold evening Carol services blending traditional hymns with Caribbean rhythms. The Cathedral of the Immaculate Conception on Columbus Square hosts particularly beautiful services with local choirs. Markets stock seasonal sorrel drink (made from hibiscus), black cake soaked in rum, and ham. The festive atmosphere builds toward Christmas Eve midnight mass, which draws huge crowds.