Roseau weather in May

May in Roseau: sweltering, a little rain, with clean air — fine if you can take 35°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

Roseau🇩🇲 Dominica · Lesser Antilles · Island88
  1. 89Jan
  2. 89Feb
  3. 90Mar
  4. 89Apr
  5. 88May
  6. 86Jun
  7. 83Jul
  8. 82Aug
  9. 80Sep
  10. 81Oct
  11. 83Nov
  12. 87Dec

#5 of 12 months in Roseau · #290 of 1413 destinations to visit in May · comfort 88/100 (tier A)

Days
32°C
Nights
24°C
Wet days
10
Sun
11.7 h
Humidity
80%
Daylight
13 h
Roseau, Dominica
Photo: Zeamays at English Wikipedia · CC BY 3.0

Traveller notes on Roseau in May

Notes from nearby Pointe-à-Pitre (106 km away)

Roseau doesn't have its own notes for May yet — these are about Pointe-à-Pitre, close enough to share the season.

Forum posters consistently describe Pointe-à-Pitre itself as a working city rather than a beach resort town, generally recommending visitors base themselves elsewhere on the island and treat the city as a day stop. Posters flag real weather variability across Guadeloupe's two halves - mountainous Basse-Terre can see scattered rain while flatter Grand-Terre, where Pointe-à-Pitre sits, stays sunny at the very same time. Posters generally recommend having an indoor backup plan, like the Memorial ACTe slavery-history museum, for a rainy stretch. Given the destination's largely urban, transit-hub role in most trip reports, May here should track Guadeloupe's broader early-wet-season warmth and humidity, with Grand-Terre's drier microclimate a real practical advantage over the mountainous side of the island.
Tripadvisor community · May · 1 month ago · about Pointe-à-Pitre · Read more on Tripadvisor ↗

Other months in Roseau

Dominica's forum is upfront that October sits in peak hurricane season, so the odds of a tropical wave or storm affecting a trip are real, though a direct hit remains the exception rather than the rule. As a lush rainforest island, it's genuinely going to rain somewhere on Dominica most days, but posters describe showers as typically brief and scattered, heavier up in the mountains than down in Roseau itself, with a lot of the rain falling overnight. October through December is actually recommended by some specifically for the World Creole Festival, drawing visitors despite the storm risk.
DominicaNatureIslandRegular · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters consistently describe Dominica, 'the nature island,' as the most rainforested of the Eastern Caribbean islands - genuinely rainy somewhere on the island most days, which posters point to as exactly why it stays so lush and green with so many rivers. Posters are equally consistent that showers here tend to be brief, usually followed quickly by sunshine again, and one visitor's multi-week April-May stay in Roseau itself saw no rain at all, even as areas just a few miles inland got frequent heavy downpours. Posters generally name the December-through-April stretch as the main dry season with the calmest seas, and specifically recommend April for hiking, noting that conditions only get hotter and wetter as hurricane season approaches in the summer months.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Roseau's card on the map.

Roseau climate normals — May

Daytime high32°C / 89°F🔥 sweltering
Nighttime low24°C / 76°F
Feels like (high)35°C / 95°F
Sea temperature28°C / 82°F♨️ bath-warm
Rainfall39 mm / 1.5 in🌦 some rain
Rainy days10 days
Humidity80%💦 very humid
Dew point22°C / 72°F
Sunshine11.7 h/day
Daylight12.8 h
Wind31 km/h / 19 mph
Air quality (US AQI)48🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Roseau in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonan ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Roseau's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherRoseau's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Roseau in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Dry season

    15 Dec – 15 May · usually

    The one stretch when the Boiling Lake track and the Waitukubuli segments above Roseau are not a mudslide, and the rivers drop enough to cross. Even then the interior makes its own weather by noon.

What's on around the world in May →

Nearby, and something's on

Within 300 km of Roseau — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Roseau?

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Roseau in May — FAQ

Is May a good time to visit Roseau?
May in Roseau: sweltering, a little rain, with clean air — fine if you can take 35°C afternoons. It ranks #5 of 12 months for Roseau on SeasonMap's comfort score (88/100).
What is the weather like in Roseau in May?
In May, Roseau averages a daily high of 31.8°C and a low of 24.4°C, with about 38.5 mm of rain over roughly 9.8 rainy days.
What is the air quality in Roseau in May?
Roseau has a mean US Air Quality Index of about 48 in May.

Within 300 km: Castries' Saint Lucia Jazz and Arts Festival on 30 Apr – 10 May.