July weather forecast and climate
Roseau, Dominica

A calm, clear waterfront in the valley city of Roseau, Dominica
A calm, clear waterfront in the valley city of Roseau, Dominica
July, the same as June, in Roseau, Dominica, is a hot summer month, with average temperature varying between 31°C (87.8°F) and 23°C (73.4°F).

Temperature

The warmest months are May through October, with an average high-temperature of 31°C (87.8°F).

Rainfall

In Roseau, Dominica, in July, during 21 rainfall days, 108mm (4.25") of precipitation is typically accumulated. In Roseau, during the entire year, the rain falls for 218 days and collects up to 1996mm (78.58") of precipitation.

Sea temperature

In July, the average sea temperature in Roseau is 28°C (82.4°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In July, the average length of the day in Roseau is 12.9h.

Sunshine

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

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Roseau. A UV Index estimate of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in Roseau?

Warmest months in Roseau are May through October, with an average high-temperature of 31°C (87.8°F).

What is the temperature in July in Roseau?

In Roseau, Dominica, in July, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in July in Roseau?

In July, in Roseau, Dominica, the rain falls for 21 days. Throughout July, 108mm (4.25") of precipitation is accumulated.

What is the water temperature in July in Roseau?

In July, the average sea temperature is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Roseau have in July?

In July, the average length of the day in Roseau, Dominica, is 12.9h.

What is the month with the most sunshine in Roseau?

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

How long on average sun shines in July in Roseau?

In July, the average sunshine in Roseau is 8h.

What are the months with the highest UV index in Roseau?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Roseau.

What is the UV index reading in July in Roseau?

The average daily maximum UV index in July is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in July - Roseau, Dominica
  • Average high temperature in July: 31°C

The warmest months (with the highest average high temperature) are May, June, July, August, September and October (31°C).
Months with the lowest average high temperature are January, February and December (29°C).

  • Average low temperature in July: 23°C

The month with the highest average low temperature is August (24°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (21°C).

Average rainfall in July - Roseau, Dominica
  • Average rainfall in July: 108mm

The wettest month (with the highest rainfall) is November (252mm).
The driest months (with the least rainfall) are February and April (87mm).

Average rainfall days in July - Roseau, Dominica
  • Average rainfall days in July: 21 days

The month with the highest number of rainy days is September (23 days).
Months with the least rainy days are February and April (14 days).

Average sea temperature in July - Roseau, Dominica
  • Average sea temperature in July: 28°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in July / Average sunshine in July - Roseau, Dominica
  • Average daylight in July: 12.9h

The month with the longest days is June (Average daylight: 13h).
The month with the shortest days is December (Average daylight: 11.2h).

  • Average sunshine in July: 8h

Months with the most sunshine are March, April, May, June, July and August (Average sunshine: 8h).
Months with the least sunshine are January, February, September, October, November and December (Average sunshine: 7).

Average UV index in July - Roseau, Dominica
  • Average UV index in July: 12

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).