Roseau weather in January

January in Roseau: hot, a little rain, with clean air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Roseau🇩🇲 Dominica · Lesser Antilles · Island89
  1. 89Jan
  2. 89Feb
  3. 90Mar
  4. 89Apr
  5. 88May
  6. 86Jun
  7. 83Jul
  8. 82Aug
  9. 80Sep
  10. 81Oct
  11. 83Nov
  12. 87Dec

#2 of 12 months in Roseau · #198 of 1413 destinations to visit in January · comfort 89/100 (tier A)

Days
30°C
Nights
22°C
Wet days
12
Sun
10.5 h
Humidity
77%
Daylight
11 h
Roseau, Dominica
Photo: Zeamays at English Wikipedia · CC BY 3.0

Traveller notes on Roseau in January

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

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

December and January are the months regulars call perfect for Guadeloupe, with November to March or April the wider good run, and our row agrees more quietly than it looks: 18.6 precipitation days sound alarming until you see the 51.3mm spread across them, under three millimetres a day. The row is also unusually flat - 26.5C by day over 24.1C at night, barely two degrees apart. The honest part concerns the town itself. Regulars are blunt that Pointe-a-Pitre is a working city rather than a resort, worth passing through quickly except for the Memorial ACTe, and that the beaches and hotels are at Gosier a short ride away. A hire car is treated as essential. The record: humidity 77 percent, 10.5 hours of sun, a 26.7C sea and AQI 35.
StayInGosierNotHere · January · 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 — January

Daytime high30°C / 86°F🥵 hot
Nighttime low22°C / 71°F
Feels like (high)32°C / 90°F
Sea temperature27°C / 80°F😎 warm sea
Rainfall32 mm / 1.3 in🌦 some rain
Rainy days12 days
Humidity77%💦 very humid
Dew point21°C / 70°F
Sunshine10.5 h/day
Daylight11.3 h
Wind32 km/h / 20 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 January

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.

BusyMas Domnik, school holidays in 3 of the markets that fill it(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 January

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

  • Festival

    Mas Domnik

    5 Jan – 10 Mar · usuallyCarnivalCrowded

    Dominica calls its carnival the Real Mas and keeps it closer to calypso and sensay costume than to feathers. The season opens in early January and ends with two days on the streets of Roseau before Ash Wednesday. Source ↗

  • Nature

    Sperm whales off the west coast

    1 Nov – 31 Mar · usuallyWhale season

    Family groups of sperm whales live in the deep water a few kilometres off Roseau all year, and the calm winter months are when the boats can find them. Dominica has been putting protections around them.

  • 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 January →

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 January — FAQ

Is January a good time to visit Roseau?
January in Roseau: hot, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Roseau on SeasonMap's comfort score (89/100).
What is the weather like in Roseau in January?
In January, Roseau averages a daily high of 30.2°C and a low of 21.6°C, with about 31.9 mm of rain over roughly 12.4 rainy days.
What is the air quality in Roseau in January?
Roseau has a mean US Air Quality Index of about 48 in January.

Within 300 km: Fort-de-France's Careme, the dry season around 1 Dec – 30 Apr, and Pointe-à-Pitre's Careme, the dry season around 1 Dec – 30 Apr.