Weather in Roseau in September 2018

  • 31°C maximum daytime temperature in September in Roseau31
    31°C max day temperature
  • 7 hours of sunshine per day (59% of daylight hours) in September in Roseau7
    7 hours of sunshine per day
  • 23 days with some rainfall in September in Roseau23
    23 days with some rainfall
  • 23°C minimum night-time temperature in September in Roseau23
    23°C min night temperature
  • 12 hours of daylight per day in September in Roseau12
    12 hours of daylight per day
  • Very high heat & humidity in September in RoseauVH
    Very High heat & humidity
  • 250 mm monthly rainfall in September in Roseau250
    250 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Roseau11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Roseau29
    29°C sea temperature

Going to Roseau? Find the best month to visit Roseau based on the weather.

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Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Roseau in September. Check more long-term weather averages for Roseau in September before you book your next holiday to Dominica in 2018.

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Roseau weather in September

The average maximum daytime temperature in Roseau in September is a hot 31°C (88°F) with very high heat & humidity. The average night-time temperature is usually a warm 23°C (73°F). There are usually 7 hours of bright sunshine each day, which represents 59% of the 12 hours of daylight.

Expect 250mm (9.8 inches) of rainfall across the whole of September with 23 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The average sea temperature in and around Roseau in September is 29°C (84°F).

Roseau sunrise & sunset times for September 2018

Browse the sunrise & sunset times for Roseau in September 2018. Select a month to view Roseau sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Saturday, 1st September 2018 05:53 18:18
Sunday, 2nd September 2018 05:53 18:17
Monday, 3rd September 2018 05:53 18:16
Tuesday, 4th September 2018 05:53 18:16
Wednesday, 5th September 2018 05:53 18:15
Thursday, 6th September 2018 05:53 18:14
Friday, 7th September 2018 05:54 18:13
Saturday, 8th September 2018 05:54 18:13
Sunday, 9th September 2018 05:54 18:12
Monday, 10th September 2018 05:54 18:11
Tuesday, 11th September 2018 05:54 18:10
Wednesday, 12th September 2018 05:54 18:09
Thursday, 13th September 2018 05:54 18:09
Friday, 14th September 2018 05:54 18:08
Saturday, 15th September 2018 05:54 18:07
Sunday, 16th September 2018 05:54 18:06
Monday, 17th September 2018 05:54 18:06
Tuesday, 18th September 2018 05:54 18:05
Wednesday, 19th September 2018 05:54 18:04
Thursday, 20th September 2018 05:54 18:03
Friday, 21st September 2018 05:55 18:02
Saturday, 22nd September 2018 05:55 18:02
Sunday, 23rd September 2018 05:55 18:01
Monday, 24th September 2018 05:55 18:00
Tuesday, 25th September 2018 05:55 17:59
Wednesday, 26th September 2018 05:55 17:59
Thursday, 27th September 2018 05:55 17:58
Friday, 28th September 2018 05:55 17:57
Saturday, 29th September 2018 05:55 17:56
Sunday, 30th September 2018 05:55 17:56
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Roseau weather by month

Check Roseau weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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