Roseau weather in May 2026

Expect daytime maximum temperatures of 88°F in Roseau, Dominica in May and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 17 days with some rainfall and typically 5.4 inches of rainfall in the month.

  • 88°F maximum daytime temperature in May in Roseau88
    88°F max day temperature
  • 8 hours of sunshine per day
  • 17 days with some rainfall in May in Roseau17
    17 days with some rainfall
  • 73°F minimum night-time temperature in May in Roseau73
    73°F min night temperature
  • 13 hours of daylight per day in May in Roseau13
    13 hours of daylight per day
  • High heat & humidity in May in RoseauH
    High heat & humidity
  • 5.4 inches monthly rainfall in May in Roseau5.4
    5.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Roseau11
    11+ (Extreme) UV index
  • 82°F sea temperature in May in Roseau82
    82°F sea temperature

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The May 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)

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How hot is it in Roseau in May?

Daytime temperatures usually reach 88°F in Roseau in May with high heat and humidity, falling to 73°F at night.

How sunny is it in Roseau in May?

There are normally 8 hours of bright sunshine each day in Roseau in May - that's 61% of daylight hours.

How warm is the sea around Roseau in May?

The average sea temperature around Roseau in May is 82°F.

Does it rain in Roseau in May?

There are usually 17 days with some rain in Roseau in May and the average monthly rainfall is 5.4 inches.

Roseau May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:42 18:23
Saturday, 16th May 2026 05:36 18:28
Sunday, 31st May 2026 05:34 18:33

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