August weather forecast
Portsmouth, Dominica

August sets in, with Portsmouth witnessing its highest recorded monthly rainfall average of 243mm (9.57"). The UV index rating, while still high at 12, necessitates suitable sun protection for skin health. Noteworthy is the steady sea temperature, providing warm conditions for water enthusiasts. The island’s tropical climate showcases a dramatic interplay between dense rainfall and sunshine-filled hours. Looking ahead, September sees a further increase in the volume of rainfall.

Temperature

June through September bring Portsmouth's highest average temperatures, reaching a high of 31°C (87.8°F).

Rainfall

In August, the rain falls for 20 days. Throughout August, 243mm (9.57") of precipitation is accumulated. In Portsmouth, during the entire year, the rain falls for 214 days and collects up to 2252mm (88.66") of precipitation.

Sea temperature

In August, the average sea temperature is 29°C (84.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In August, the average length of the day in Portsmouth is 12h and 38min.
On the first day of August in Portsmouth, Dominica, sunrise is at 05:47 and sunset at 18:36. On the last day of the month, sunrise is at 05:53 and sunset at 18:18 AST.

Sunshine

March through August, with an average of 8h of sunshine, are months with the most sunshine in Portsmouth.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Portsmouth, Dominica. A UV Index estimate of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 12 in August interprets into the following recommendations:
Implement all necessary safeguards, unprotected skin might suffer burns rapidly. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Even if the day is cloudy, sunscreen with SPF of at least 30 should be applied generously and reapplied often, particularly after swimming or outdoor exercise. Be attentive! The UV exposure is heightened with reflections from sand and water.