Weather in Roseau in August 2018

Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Roseau in August. Check more long-term weather averages for Roseau in August before you book your next holiday to Dominica in 2018.

Key weather averages for Roseau in August

  • 31°C maximum daytime temperature in August in Roseau31
    31°C max day temperature
  • 8 hours of sunshine per day (63% of daylight hours) in August in Roseau8
    8 hours of sunshine per day
  • 20 days with some rainfall in August in Roseau20
    20 days with some rainfall
  • 24°C minimum night-time temperature in August in Roseau24
    24°C min night temperature
  • 13 hours of daylight per day in August in Roseau13
    13 hours of daylight per day
  • Very high heat & humidity in August in RoseauVH
    Very High heat & humidity
  • 246 mm monthly rainfall in August in Roseau246
    246 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Roseau11
    11+ (Extreme) UV index
  • 29°C sea temperature in August in Roseau29
    29°C sea temperature

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

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

  • Search Momondo for cheap flights to Dominica
  • Find the best prices & flight routes from top airlines
  • Compare leading flight offers before booking online

More about Roseau

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

Guide to Roseau weather in August

The average maximum daytime temperature in Roseau in August is a hot 31°C (88°F) with very high heat & humidity. The average night-time temperature is usually a warm 24°C (75°F). There are usually 8 hours of bright sunshine each day, which represents 63% of the 13 hours of daylight.

Expect 246mm (9.7 inches) of rainfall across the whole of August with 20 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 August is 29°C (84°F).

The weather in Roseau in August is represented by Roseau.

Roseau sunrise & sunset times for August 2018

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


Date Sunrise times Sunset times
Wednesday, 1st August 2018 05:48 18:36
Thursday, 2nd August 2018 05:48 18:35
Friday, 3rd August 2018 05:48 18:35
Saturday, 4th August 2018 05:49 18:35
Sunday, 5th August 2018 05:49 18:34
Monday, 6th August 2018 05:49 18:34
Tuesday, 7th August 2018 05:49 18:33
Wednesday, 8th August 2018 05:50 18:33
Thursday, 9th August 2018 05:50 18:32
Friday, 10th August 2018 05:50 18:32
Saturday, 11th August 2018 05:50 18:31
Sunday, 12th August 2018 05:50 18:31
Monday, 13th August 2018 05:51 18:30
Tuesday, 14th August 2018 05:51 18:30
Wednesday, 15th August 2018 05:51 18:29
Thursday, 16th August 2018 05:51 18:28
Friday, 17th August 2018 05:51 18:28
Saturday, 18th August 2018 05:51 18:27
Sunday, 19th August 2018 05:52 18:27
Monday, 20th August 2018 05:52 18:26
Tuesday, 21st August 2018 05:52 18:25
Wednesday, 22nd August 2018 05:52 18:25
Thursday, 23rd August 2018 05:52 18:24
Friday, 24th August 2018 05:52 18:23
Saturday, 25th August 2018 05:52 18:23
Sunday, 26th August 2018 05:52 18:22
Monday, 27th August 2018 05:53 18:21
Tuesday, 28th August 2018 05:53 18:21
Wednesday, 29th August 2018 05:53 18:20
Thursday, 30th August 2018 05:53 18:19
Friday, 31st August 2018 05:53 18:18
  • Save an extra 10% on cheap car hire worldwide
  • With this exclusive Holiday Autos discount code
  • Travel before 31st December 2018 (inclusive)
Show discount code ******XE3

Expires at 23:59 on Thursday 30th November 2017 · View all Holiday Autos offers

Back to top

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.

Back to top

More Dominica destinations

All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

More destinations

Related posts

Popular travel offers

Top ^