Roseau weather by month

Check out Roseau weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Roseau (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
29°C maximum daytime temperature in January in Roseau29
29°C maximum daytime temperature in February in Roseau29
30°C maximum daytime temperature in March in Roseau30
30°C maximum daytime temperature in April in Roseau30
31°C maximum daytime temperature in May in Roseau31
31°C maximum daytime temperature in June in Roseau31
31°C maximum daytime temperature in July in Roseau31
31°C maximum daytime temperature in August in Roseau31
31°C maximum daytime temperature in September in Roseau31
31°C maximum daytime temperature in October in Roseau31
30°C maximum daytime temperature in November in Roseau30
29°C maximum daytime temperature in December in Roseau29
Min temperature (night-time)
21°C minimum night-time temperature in January in Roseau21
21°C minimum night-time temperature in February in Roseau21
21°C minimum night-time temperature in March in Roseau21
22°C minimum night-time temperature in April in Roseau22
23°C minimum night-time temperature in May in Roseau23
23°C minimum night-time temperature in June in Roseau23
23°C minimum night-time temperature in July in Roseau23
24°C minimum night-time temperature in August in Roseau24
23°C minimum night-time temperature in September in Roseau23
23°C minimum night-time temperature in October in Roseau23
22°C minimum night-time temperature in November in Roseau22
21°C minimum night-time temperature in December in Roseau21
Heat & Humidity
Moderate heat & humidity in January in RoseauM
Moderate heat & humidity in February in RoseauM
High heat & humidity in March in RoseauH
High heat & humidity in April in RoseauH
High heat & humidity in May in RoseauH
Very high heat & humidity in June in RoseauVH
Very high heat & humidity in July in RoseauVH
Very high heat & humidity in August in RoseauVH
Very high heat & humidity in September in RoseauVH
High heat & humidity in October in RoseauH
High heat & humidity in November in RoseauH
High heat & humidity in December in RoseauH
Sea temperature
27°C sea temperature in January in Roseau27
26°C sea temperature in February in Roseau26
26°C sea temperature in March in Roseau26
27°C sea temperature in April in Roseau27
28°C sea temperature in May in Roseau28
28°C sea temperature in June in Roseau28
28°C sea temperature in July in Roseau28
29°C sea temperature in August in Roseau29
29°C sea temperature in September in Roseau29
29°C sea temperature in October in Roseau29
28°C sea temperature in November in Roseau28
28°C sea temperature in December in Roseau28

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Roseau

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Roseau11
12 hours of daylight per day in February in Roseau12
12 hours of daylight per day in March in Roseau12
12 hours of daylight per day in April in Roseau12
13 hours of daylight per day in May in Roseau13
13 hours of daylight per day in June in Roseau13
13 hours of daylight per day in July in Roseau13
13 hours of daylight per day in August in Roseau13
12 hours of daylight per day in September in Roseau12
12 hours of daylight per day in October in Roseau12
11 hours of daylight per day in November in Roseau11
11 hours of daylight per day in December in Roseau11
UV Index (Maximum)
UV (maximum) index 9 (Very High) in January in Roseau9
UV (maximum) index 11 (Extreme) in February in Roseau11
UV (maximum) index 11+ (Extreme) in March in Roseau11
UV (maximum) index 11+ (Extreme) in April in Roseau11
UV (maximum) index 11+ (Extreme) in May in Roseau11
UV (maximum) index 11+ (Extreme) in June in Roseau11
UV (maximum) index 11+ (Extreme) in July in Roseau11
UV (maximum) index 11+ (Extreme) in August in Roseau11
UV (maximum) index 11+ (Extreme) in September in Roseau11
UV (maximum) index 11 (Extreme) in October in Roseau11
UV (maximum) index 9 (Very High) in November in Roseau9
UV (maximum) index 8 (Very High) in December in Roseau8

Rainfall in Roseau

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
18 days with some rainfall in January in Roseau18
14 days with some rainfall in February in Roseau14
15 days with some rainfall in March in Roseau15
14 days with some rainfall in April in Roseau14
17 days with some rainfall in May in Roseau17
19 days with some rainfall in June in Roseau19
21 days with some rainfall in July in Roseau21
20 days with some rainfall in August in Roseau20
23 days with some rainfall in September in Roseau23
19 days with some rainfall in October in Roseau19
19 days with some rainfall in November in Roseau19
19 days with some rainfall in December in Roseau19
Average monthly rainfall (mm)
136 mm monthly rainfall in January in Roseau136
87 mm monthly rainfall in February in Roseau87
93 mm monthly rainfall in March in Roseau93
87 mm monthly rainfall in April in Roseau87
137 mm monthly rainfall in May in Roseau137
185 mm monthly rainfall in June in Roseau185
108 mm monthly rainfall in July in Roseau108
246 mm monthly rainfall in August in Roseau246
250 mm monthly rainfall in September in Roseau250
239 mm monthly rainfall in October in Roseau239
252 mm monthly rainfall in November in Roseau252
176 mm monthly rainfall in December in Roseau176

More about Roseau

Roseau by month

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

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The climate guide for Dominica (Roseau) shows long term monthly 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.

What's the climate like in Roseau?

Roseau has a hot tropical climate with no dry season.

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

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Tropical storm risk: Roseau, Dominica hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
<1%
2.8%
4%
1.6%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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Compare Roseau with the USA

Below the Roseau chart shows average maximum daytime temperature for Roseau, Dominica and the USA (Washington).

Maximum daytime temperature (°C)

Roseau, Dominica
USA (Washington)
29
5
29
7
30
13
30
19
31
24
31
29
31
31
31
30
31
26
31
20
30
14
29
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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