Roseau weather in January 2026

Expect daytime maximum temperatures of 84°F in Roseau, Dominica in January based on long-term weather averages. There are 7 hours of sunshine per day on average with 18 days with some rainfall and typically 5.4 inches of rainfall in the month.

  • 84°F maximum daytime temperature in January in Roseau84
    84°F max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in January in Roseau18
    18 days with some rainfall
  • 70°F minimum night-time temperature in January in Roseau70
    70°F min night temperature
  • 11 hours of daylight per day in January in Roseau11
    11 hours of daylight per day
  • Moderate heat & humidity in January in RoseauM
    Moderate heat & humidity
  • 5.4 inches monthly rainfall in January in Roseau5.4
    5.4 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in January in Roseau9
    9 (Very High) UV index
  • 81°F sea temperature in January in Roseau81
    81°F sea temperature

More about Roseau

Roseau by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Dominica

Marella Cruises discount code: up to £300 off sailings

  • Save up to £300 on sailings (1 Jan 2026-30 Apr 2027)
  • Book online in Black Friday sale with myTUI account
  • Discount varies on destination. Min 7 nights duration
Show discount codeShow discount code ******AIL
Redeem Marella Cruises discount code >>

Expires at 23:59 on Tuesday 2nd Dec 2025 · View all Marella Cruises offers

Marella CruisesCruise deal finder

The January weather guide for Dominica (Roseau) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

How hot is it in Roseau in January?

Daytime temperatures usually reach 84°F in Roseau in January with moderate heat and humidity, falling to 70°F at night.

How sunny is it in Roseau in January?

There are normally 7 hours of bright sunshine each day in Roseau in January - that's 60% of daylight hours.

How warm is the sea around Roseau in January?

The average sea temperature around Roseau in January is 81°F.

Does it rain in Roseau in January?

There are usually 18 days with some rain in Roseau in January and the average monthly rainfall is 5.4 inches.

Roseau January sunrise & sunset times

Browse the sunrise and sunset times for Roseau in January 2026. Select a month to view Roseau sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 06:32 17:47
Friday, 16th January 2026 06:36 17:55
Saturday, 31st January 2026 06:35 18:03

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^