Roseau weather in January 2026

Expect daytime maximum temperatures of 29°C in Roseau 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 136 mm of rainfall in the month.

  • 29°C maximum daytime temperature in January in Roseau29
    29°C max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in January in Roseau18
    18 days with some rainfall
  • 21°C minimum night-time temperature in January in Roseau21
    21°C 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
  • 136 mm monthly rainfall in January in Roseau136
    136 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in January in Roseau9
    9 (Very High) UV index
  • 27°C sea temperature in January in Roseau27
    27°C 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 sale: up to £300 off ocean cruises

  • Save up to £300 on ocean cruises in 2025/2026
  • Discount varies by destination. No min spend
  • Travel before 30th April 2026 (inclusive)
Show discount codeShow discount code ******200
Redeem Marella Cruises discount code >>

Expires at 23:59 on Friday 28th Feb 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 / mm)  |  Imperial (°F / inches)

Back to top

How hot is it in Roseau in January?

Daytime temperatures usually reach 29°C in Roseau in January with moderate heat and humidity, falling to 21°C 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 27°C.

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 136mm.

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 holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^