Climate and monthly weather forecast
Rosalie, Dominica

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The climate of Rosalie

Rosalie is a village found in Dominica, with a climatological identity that adheres to the Köppen climate classification of Af. This signifies it has prominent characteristics of a tropical rainforest climate. This classification coincides with consistently high temperatures paired with substantial rainfall throughout the year.

Throughout the entire year, temperatures in Rosalie maintain a quite steady range. The highest average temperatures are observed in July, August, and September at 28.6°C (83.5°F) while the lowest average has a slight drop only to 26.5°C (79.7°F) in January. These high temperatures persist throughout the year with minimal fluctuation signifying the tropical nature of this location. Regarding humidity, it mirrors the general pattern of temperatures, maintaining a similarly high, constant level throughout the year, with a range from 75% in January, February, and March, to 78% in July and August.

Precipitation in Rosalie is extremely significant. However, rainfall exhibits variances throughout the year. The maximum monthly average rainfall is observed in August at 78mm (3.07") with the month also recording the most rainy days at 20.2 days. The contrast lies with February, which records the lowest rainfall with an average of 20mm (0.79") spread over 15.7 days. The pattern of rainfall evidently demonstrates that while the tropical rainforest climate entails substantial rainfall, it also experiences considerable monthly variations.

The best time to visit Rosalie

Taking into account the climatological factors, the best time to visit Rosalie for outdoor activities would lie in the span from January to March. The temperatures during these months lie at the lower end of the scale, at 26.5°C (79.7°F), 26.3°C (79.3°F), and 26.3°C (79.3°F) respectively, and are accompanied by relatively lower humidity at 75%. Additionally, these months also mark the period with the least amount of rainfall, rendering circumstances more predictable and travel-friendly.

The worst time to visit Rosalie

August stands out as potentially the least favorable month to visit Rosalie, due to the climatic extremities. The monthly average temperature peaks at this time, rising up to 28.6°C (83.5°F), combined with the highest humidity level at 78%. Furthermore, August also tops the scales in terms of rainfall, averaging 78mm (3.07"), over the highest number of rainy days at 20.2. Visitors looking to avoid the height of the climatic intensity should consider scheduling their trips outside of this time.

Spring weather in Rosalie

Spring season in Rosalie, considering March to May period, continues with the tropical climate's high temperatures. From 26.3°C (79.3°F) in March, the temperature creeps up to 27.5°C (81.5°F) by May. Humidity also rises from 75% in March to 77% in May. Rainfall however, undergoes a stark rise; beginning with 22mm (0.87") average over 15.6 rainy days in March, it escalates to 46mm (1.81") spread over 20.3 days by May.

Summer weather in Rosalie


Summer in Rosalie, extending from June to August, sees the culmination of the tropical climate with temperatures reaching their peak. The average temperature stabilizes around 28.1°C (82.6°F) in June and July, eventually escalating to 28.6°C (83.5°F) in August. Humidity remains comparable, persisting at 77% in June and July, to 78% in August. Rainfall is substantial during these months, peaking at 78mm (3.07") in August, spread over the most number of rainy days recorded in the year, at 20.2.

Autumn weather in Rosalie

For Rosalie, the autumn months of September to November, maintain the tropical character of high temperatures and substantial rainfall. The average monthly temperature of 28.6°C (83.5°F) experienced in September drops slightly to 27.8°C (82°F) by November. The trend reflects in the humidity as well, decrease from 76% in September to 77% November. Rainfall reduces quite drastically from September’s recorded 70mm (2.76") over 19.7 rainy days to 67mm (2.64") dispersed in 19.5 days in November.

Winter weather in Rosalie

The winter season, December to February, sees the transition to relatively cooler temperatures. From 27°C (80.6°F) in December, the monthly average temperature drops to its lowest, at 26.3°C (79.3°F), in February. Humidity witnesses a slight drop to 75% as well. The season also hosts the period with the least rainfall, with 38mm (1.5") recorded in December, reducing further to 20mm (0.79") in February, over a duration of 15.7 rainy days, the lowest in the year.

Weather in January

Transitioning from the cool December, January in Rosalie, Dominica sees a slight uptick in temperature. Notably, the average high temperature reaches up to 26.5°C (79.7°F) and the low averages at 24.6°C (76.3°F). The onset of the year thus witnesses relatively warm yet pleasant weather, perfect for outdoor activities. Weather in January »

Weather in February

The weather pattern generally remains stable from January to February. Rosalie, Dominica maintains a similar temperature range, with minimal changes noticeable. However, the onset of February brings subtle alterations in the cloud coverage, with a decrease in the percentage. Weather in February »

Weather in March

As Rosalie, Dominica transitions into the month of March, the weather remains largely consistent with February. However, it is important to mark an increase in rainfall from 20mm (0.79") to 22mm (0.87") compared to the previous month. Weather in March »

Weather in April

Come April, the weather in Rosalie, Dominica goes through noticeable changes. The warming trend accentuates, with temperatures witnessing a perceptible rise. The average rainfall jumps significantly from 22mm (0.87") in March to 42mm (1.65") in April, hinting at the onset of the rainy season. Weather in April »

Weather in May

May carries forward the warming trend from April, with Rosalie, Dominica experiencing a significant rise in temperatures. The most striking feature of May weather lies in its rainfall, which peaks to 46mm (1.81"). The increased rainfall coincides with higher humidity levels, bringing forth a tropical atmosphere. Weather in May »

Weather in June

As the year progresses to halfway, June in Rosalie, Dominica brings a subtle shift in the weather conditions. The temperature highs continue to climb, touching their mid-year peak. A significant feature to note is the decrease in rainfall to 34mm (1.34") from 46mm (1.81") in May. Weather in June »

Weather in July

The weather in July in Rosalie, Dominica slightly deviates from June primarily in terms of rainfall and wind behavior. Interestingly, the average rainfall increases significantly to 58mm (2.28") in July from 34mm (1.34") in June. Paired with these conditions, the slight increase in wind speed brings much-needed freshness to the atmosphere. Weather in July »

Weather in August

Come August, the weather in Rosalie, Dominica experiences interesting changes. The most prominent among these is the rain, which records a peak at 78mm (3.07"). Despite the high rainfall, daylight hours remain ample enough to appreciate the beauty of the locale. Weather in August »

Weather in September

September marks a subtle shift in the weather pattern in Rosalie, Dominica. After the rainfall peak in August, there is a negligible pullback to 70mm (2.76") in September. Correspondingly, the wind speeds drop, making the atmosphere more tranquil. Weather in September »

Weather in October

As the year edges closer to its end, October in Rosalie, Dominica brings certain noticeable weather changes. The rainfall continues at a high, averaging at 67mm (2.64"), similar to that in September. However, sunshine days see a noticeable drop, reflecting the onset of the cooler season. Weather in October »

Weather in November

November in Rosalie, Dominica continues the cooling trend initiated in October. A noteworthy feature of November weather remains its consistently high rainfall. The slightly lower temperature averages, teamed with higher rainfall, create a perfectly pleasant tropical atmosphere. Weather in November »

Weather in December

December, the final month, brings cooler and gentler weather to Rosalie, Dominica. The average temperature experiences a significant drop from November, resulting in a more pleasant atmosphere. There is a noticeable drop in rainfall from 67mm (2.64") in November to 38mm (1.5") in December. Weather in December »

Frequently asked questions

What is the least humid month in Rosalie?

January through March, with an average relative humidity of 75%, are the least humid months.

How many days does it rain in Rosalie?

In Rosalie, Dominica, during the entire year, the rain falls for 221.9 days and collects up to 570mm (22.44") of precipitation.

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

The months with the highest UV index are January through December, with an average maximum UV index of 7.

What are the months with the lowest UV index in Rosalie?

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

What time of the year is the coldest in Rosalie?

During February and March, Rosalie registers its lowest temperatures, averaging a high of 26.3°C (79.3°F).

What is the driest month in Rosalie?

The month with the least rainfall is February, when the rain falls for 15.7 days and typically collects 20mm (0.79") of precipitation.

When are the longest days in Rosalie?

The month with the longest days is June, with an average of 13h and 0min of daylight.

What are the most humid months in Rosalie?

July and August, with an average relative humidity of 78%, are most humid months.

What time of the year is the hottest in Rosalie?

Peak temperatures are observed in August through October, averaging a high-temperature of 28.6°C (83.5°F).

What is the wettest month in Rosalie?

August is the month with the most rainfall in Rosalie. Rain falls for 20.2 days and accumulates 78mm (3.07") of precipitation.

What month has the most sunshine in Rosalie?

August has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the month with the shortest days in Rosalie?

December has the shortest days of the year, with an average of 11h and 12min of daylight.

Is there Daylight Saving Time (DST) in Rosalie?

Rosalie does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

What is the month with the least sunshine in Rosalie?

The month with the least sunshine in Rosalie is December, with an average of 6.6h of sunshine.

Average temperature
Rosalie, Dominica

Average temperature - Rosalie, Dominica

The warmest months (with the highest average high temperature) are August, September and October (28.6°C).
The months with the lowest average high temperature are February and March (26.3°C).

The month with the highest average low temperature is September (27.1°C).
The coldest month (with the lowest average low temperature) is March (24.1°C).

Average pressure
Rosalie, Dominica

Average pressure - Rosalie, Dominica

The month with the highest atmospheric pressure is June (1015.6mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).

Average wind speed
Rosalie, Dominica

Average wind speed - Rosalie, Dominica

The windiest month (with the highest average wind speed) is January (27.2km/h).
The calmest month (with the lowest average wind speed) is October (20.2km/h).

Average humidity
Rosalie, Dominica

Average humidity - Rosalie, Dominica

The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).

Average rainfall
Rosalie, Dominica

Average rainfall - Rosalie, Dominica

The wettest month (with the highest rainfall) is August (78mm).
The driest month (with the least rainfall) is February (20mm).

Average rainfall days
Rosalie, Dominica

Average rainfall days - Rosalie, Dominica

The month with the highest number of rainy days is October (21.5 days).
The month with the least rainy days is June (14.8 days).

Average daylight / Average sunshine
Rosalie, Dominica

Average daylight / Average sunshine - Rosalie, Dominica

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 month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days
Rosalie, Dominica

Average sunshine days - Rosalie, Dominica

The month with the most sunshine days is March (9.8 days).
The month with the least sunshine days is April (5.9 days).

Average UV index
Rosalie, Dominica

Average UV index - Rosalie, Dominica

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average visibility
Rosalie, Dominica

Average visibility - Rosalie, Dominica

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Rosalie, Dominica

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