Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
Weather in January
January, like December, in Portsmouth, Dominica, is a moderately hot winter month, with temperature in the range of an average high of 28°C (82.4°F) and an average low of 21°C (69.8°F). The coldest month is January, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 21°C (69.8°F). Weather in January »
Weather in February
The last month of the winter, February, is another warm month in Portsmouth, Dominica, with an average temperature varying between 29°C (84.2°F) and 21°C (69.8°F). In Portsmouth, the average high-temperature in February is almost the same as in January - a still warm 29°C (84.2°F). Weather in February »
Weather in March
March, the first month of the spring in Portsmouth, is still a warm month, with an average temperature ranging between min 21°C (69.8°F) and max 29°C (84.2°F). In March, the average high-temperature remains equal as in February - a still warm 29°C (84.2°F). Weather in March »
Weather in April
April is a hot spring month in Portsmouth, Dominica, with temperature in the range of an average low of 22°C (71.6°F) and an average high of 30°C (86°F). In Portsmouth, the average high-temperature in April is practically the same as in March - a tropical 30°C (86°F). Weather in April »
Weather in May
The last month of the spring, May, is also a hot month in Portsmouth, Dominica, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 30°C (86°F). In May, the average high-temperature remains equal as in April - a still hot 30°C (86°F). Weather in May »
Weather in June
The first month of the summer, June, is still a tropical month in Portsmouth, Dominica, with an average temperature varying between 23°C (73.4°F) and 31°C (87.8°F). The warmest months are June through September, with an average high-temperature of 31°C (87.8°F). In Portsmouth, during June, the rain falls for 18 days and regularly aggregates up to 173mm (6.81") of precipitation. Weather in June »
Weather in July
July, the same as June, in Portsmouth, Dominica, is another tropical summer month, with an average temperature fluctuating between 24°C (75.2°F) and 31°C (87.8°F). June through September, with an average high-temperature of 31°C (87.8°F), are the warmest months. In Portsmouth, Dominica, in July, it is raining for 20 days, with typically 156mm (6.14") of accumulated precipitation. Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Portsmouth, Dominica, with an average temperature ranging between min 24°C (75.2°F) and max 31°C (87.8°F). The warmest months are June through September, with an average high-temperature of 31°C (87.8°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a hot month in Portsmouth, Dominica, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 31°C (87.8°F). June through September, with an average high-temperature of 31°C (87.8°F), are the warmest months. Weather in September »
Weather in October
October, like September, is another tropical autumn month in Portsmouth, Dominica, with an average temperature ranging between min 23°C (73.4°F) and max 30°C (86°F). In Portsmouth, the average high-temperature in October is relatively the same as in September - a still hot 30°C (86°F). Weather in October »
Weather in November
November, the last month of the autumn in Portsmouth, is also a hot month, with temperature in the range of an average high of 30°C (86°F) and an average low of 22°C (71.6°F). In Portsmouth, Dominica, the average high-temperature in November remains equal as in October - a still tropical 30°C (86°F). Weather in November »
Weather in December
The first month of the winter, December, is still a warm month in Portsmouth, Dominica, with an average temperature ranging between max 29°C (84.2°F) and min 22°C (71.6°F). In Portsmouth, the average high-temperature in December is essentially the same as in November - a moderately hot 29°C (84.2°F). Weather in December »
[Resources]FAQ
What is the coldest month in Portsmouth?
January is the coldest month in Portsmouth, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 21°C (69.8°F).
How much does it rain in Portsmouth?
Throughout the year, in Portsmouth, there are 214 rainfall days, and 2252mm (88.66") of precipitation is accumulated.
What is the driest month in Portsmouth?
February is the month with the least rainfall in Portsmouth. Rain falls for 14 days and accumulates 95mm (3.74") of precipitation.
When is the sea coldest in Portsmouth?
With an average sea temperature of 26.7°C (80.1°F), February is the month with the coldest seawater in Portsmouth, Dominica.
What is the month with the most sunshine in Portsmouth?
March through August, with an average of 8h of sunshine, are months with the most sunshine in Portsmouth.
When is the highest UV index in Portsmouth?
The months with the highest UV index in Portsmouth are March through September, with an average maximum UV index of 12.
What is the warmest month in Portsmouth?
June through September, with an average high-temperature of 31°C (87.8°F), are warmest months in Portsmouth, Dominica.
When are the longest days in Portsmouth?
June has the longest days of the year in Portsmouth, Dominica, with an average of 13h and 2min of daylight.
When is the sea warmest in Portsmouth?
September is the month with the warmest seawater in Portsmouth, with an average sea temperature of 29.4°C (84.9°F).
What is the rainiest month in Portsmouth?
November is the month with the most rainfall in Portsmouth. Rain falls for 19 days and accumulates 300mm (11.81") of precipitation.
What is the month with the shortest days in Portsmouth?
The month with the shortest days is December, with an average of 11h and 13min of daylight.
Is there Daylight Saving Time (DST) in Portsmouth?
Portsmouth, Dominica, does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
What is the month with the least sunshine in Portsmouth?
The month with the least sunshine in Portsmouth, Dominica, is December, with an average of 6h of sunshine.
When is the lowest UV index in Portsmouth?
With an average maximum UV index of 8, December is the month with the lowest UV index in Portsmouth.
Average temperature
Portsmouth, Dominica
The warmest months (with the highest average high temperature) are June, July, August and September (31°C).
The month with the lowest average high temperature is January (28°C).
The months with the highest average low temperature are July, August and September (24°C).
The coldest months (with the lowest average low temperature) are January, February and March (21°C).
Average rainfall
Portsmouth, Dominica
- Average rainfall in January:
144mm - Average rainfall in February:
95mm - Average rainfall in March:
110mm - Average rainfall in April:
105mm - Average rainfall in May:
177mm - Average rainfall in June:
173mm
- Average rainfall in July:
156mm - Average rainfall in August:
243mm - Average rainfall in September:
269mm - Average rainfall in October:
279mm - Average rainfall in November:
300mm - Average rainfall in December:
201mm
The wettest month (with the highest rainfall) is November (300mm).
The driest month (with the least rainfall) is February (95mm).
Average rainfall days
Portsmouth, Dominica
- Average rainfall days in January:
18 days - Average rainfall days in February:
14 days - Average rainfall days in March:
15 days - Average rainfall days in April:
14 days - Average rainfall days in May:
17 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
20 days - Average rainfall days in September:
22 days - Average rainfall days in October:
19 days - Average rainfall days in November:
19 days - Average rainfall days in December:
18 days
The month with the highest number of rainy days is September (22 days).
The months with the least rainy days are February and April (14 days).
Average sea temperature
Portsmouth, Dominica
The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).
Average daylight / Average sunshine
Portsmouth, Dominica
- Average daylight in January:
11h and 2min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 3min - Average daylight in May:
12h and 5min - Average daylight in June:
13h and 0min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 2min - Average daylight in December:
11h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
The months with the most sunshine are March, April, May, June, July and August (Average sunshine: 8h).
The month with the least sunshine is December (Average sunshine: 6h).
Average UV index
Portsmouth, Dominica
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).
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