The general dry and wet pattern
Like the rest of the Caribbean, the Dominican Republic experiences a broadly drier season in the winter and spring months and a wetter season through the summer and into the Atlantic hurricane season, which officially runs from June through November.
The south-west, and Pedernales province in particular, sits partly in a rain shadow created by the Sierra de Bahoruco, which is part of why this corner of the country has a noticeably more arid, scrub-and-cactus landscape in places compared with the lush interior further north and east — a genuine, confirmed feature of the region's geography.
What that means for coastal versus inland plans
Coastal stretches around Cabo Rojo and Bahía de las Águilas tend toward the drier, semi-arid character typical of this rain-shadow effect, while the Sierra de Bahoruco itself, rising just inland, supports a cloud forest reserve with a markedly different, wetter microclimate at altitude.
This contrast is worth factoring into a multi-stop itinerary: a trip combining the coast, Lago Enriquillo and the Sierra de Bahoruco cloud forest is, by the geography alone, moving between genuinely different climate zones within a short overland distance, even without us quoting specific figures for each.
Hurricane season considerations
As with anywhere in the Caribbean, the June-to-November window carries a general risk of tropical storms and hurricanes, and travellers planning a trip to the south-west during this period should follow official Dominican and international meteorological advisories rather than relying on generic seasonal guidance.
This applies equally to travel via the existing airports (SDQ, BRX) and, eventually, to travel via CBJ once it opens — hurricane-season planning is a function of the Caribbean basin's climate, not of which airport a traveller uses.
Timing a trip around CBJ's opening
Travellers specifically interested in being among the first to fly into CBJ once it opens should treat the target February 2027 window as provisional and check for confirmed opening news closer to the time, rather than booking travel around that date in advance.
For everyone else, the practical seasonal considerations above apply regardless of when CBJ opens, since they are about the south-west's climate, not about the airport itself.
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Register on WhatsAppQuestions we get on this
- What is the dry season in the south-west Dominican Republic?
- Broadly December through April, following the same general Caribbean pattern as the rest of the country.
- Is Pedernales affected by hurricane season?
- Yes, in the same general Atlantic hurricane season window (June–November) as the rest of the Caribbean, and official advisories should be followed during this period.
- Why is the south-west coast drier than other parts of the country?
- The Sierra de Bahoruco creates a rain-shadow effect over the coastal belt around Cabo Rojo and Pedernales, giving it a more semi-arid character than the lusher north and east of the country.