The start of the wetter half of the year; rainfall increases and showers become more frequent though not yet persistent. Vegetation is lush and waterfalls are fuller, but some mountain trails may be slippery. Travel costs typically decline compared with high season.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Dominica in May.
Roseau, Mero, Scotts Head, Champagne Reef
May brings more humidity and the odd lengthy shower as the wet season approaches; the leeward coast still sees more sunshine than the east, but cloudbursts start to increase. Waterfalls upriver that feed the west beaches swell, which can create stronger currents around river mouths - heed local beach flags. If you plan snorkel or dive trips, monitor weather updates: operators sometimes rearrange schedules ahead of squalls.
Portsmouth, Cabrits National Park, Calibishie
May brings a rise in humidity and more quick, soaking showers in the afternoons; inland waterways that feed northern beaches can colour nearshore water after heavy rains. Calibishie’s coastal trails remain worth the visit between showers, though rockier beaches become slicker - sturdy footwear is recommended. Travelers should book boat operators who check conditions, since short-notice cancellations become more common.
Castle Bruce, La Plaine, Marigot, Grand Fond
May increases humidity and rain frequency along the windward coast; persistent morning cloud and midday downpours are common as the wet season approaches. Water levels in rivers and small creeks rise quickly after rain, making crossing some rural tracks risky and slippery. Expect dramatically full waterfalls and powerful surf-great for dramatic landscapes but poor for casual coastal swimming or unsheltered boat trips.
Boiling Lake, Emerald Pool, Trafalgar Falls, Waitukubuli Trail high sections
May’s humidity and more regular downpours make the mountaintop trails noticeably muddier and slower; the Boiling Lake track can be wet and challenging, though the falls are impressively full. Expect trail detours and pack good waterproof gear, gaiters and a reliable headlamp in case you are still on the trail after a sudden rain. On bright days the mist burns off to reveal dramatic canyon views and vibrant moss-covered forest.
Soufrière, Scotts Head peninsula, Grand Bay
May’s humidity builds and short heavy showers become more common; the peninsula’s rivers swell, making some minor dirt tracks slippery and less reliable for self-drive exploration. The marine life continues to be active though runoff after storms can reduce visibility for dives and snorkels temporarily. Choose dive operators who monitor weather closely and have flexible cancellation policies.
There are no major festivals or events in Dominica during May to be aware of.
See how May compares with the rest of the year, then read the full guide.