Roseau
Dominica
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Roseau, Dominica

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

Temperature

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

Rainfall

In June, the rain falls for 19 days. Throughout June, 185mm (7.3") of precipitation is accumulated. In Roseau, during the entire year, the rain falls for 218 days and collects up to 1996mm (78.6") of precipitation.

Sea temperature

In June, the average sea temperature in Roseau is 28°C (82.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 13h of daylight, June has the longest days of the year.

Sunshine

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

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 reading of 11, and higher, represents an excessive health risk from unsafe exposure to the UV radiation for the average person.
The average daily UV index of 12 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 reflection of water and sand dramatically increases exposure to the UV rays.

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 June in Roseau?

The average high-temperature, in June, in Roseau, is 31°C (87.8°F), while the average low-temperature is 23°C (73.4°F).

How much does it rain in Roseau in June?

In Roseau, during June, the rain falls for 19 days and regularly aggregates up to 185mm (7.3") of precipitation.

What is the water temperature in June in Roseau?

In Roseau, the average seawater temperature in June 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.

When are the longest days in Roseau?

The month with the longest days is June, with an average of 13h of daylight.

What is the average length of the day in June in Roseau?

In June, the average length of the day in Roseau, Dominica, is 13h.

What is the month with the most sunshine in Roseau?

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

How long on average sun shines in June in Roseau?

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

What is the month with the highest UV index in Roseau?

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

How high is the UV index in June in Roseau?

The average daily maximum UV index in June is 12. A UV Index of 11, and more, symbolizes an excessive health risk from unsafe exposure to the Sun's UV rays.
Average temperature in June - Roseau, Dominica
  • Average high temperature in June: 31°C

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 June: 23°C

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

Average rainfall in June - Roseau, Dominica
  • Average rainfall in June: 185mm

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

Average rainfall days in June - Roseau, Dominica
  • Average rainfall days in June: 19 days

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

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

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

Average daylight in June / Average sunshine in June - Roseau, Dominica
  • Average daylight in June: 13h

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

  • Average sunshine in June: 8h

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

Average UV index in June - Roseau, Dominica
  • Average UV index in June: 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).