Castle Bruce Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castle Bruce.
Climate overview of Castle Bruce
Castle Bruce, Dominica, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 28°C (82°F), peaking in September at 29°C (84°F) and dipping in February to 26°C (79°F).
With around 1220 mm (48 in) of annual rainfall, Castle Bruce has a notably wet climate. The wettest month is October. Sunshine peaks in April, when the city sees around 8.2 hours of sunshine per day.
Castle Bruce Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castle Bruce - and find the best time to visit.
Monthly Temperature in Castle Bruce
With minimal seasonal shifts, Castle Bruce experiences a constant climate year-round. Average daytime temperatures reach a comfortable 29°C (84°F) in September. In February, the coolest month of the year, temperatures drop to a comfortable 26°C (79°F).
At night, temperatures range from around 26°C (79°F) in September to 24°C (75°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castle Bruce
Castle Bruce has a notably wet climate with abundant precipitation, recording 1220 mm (48 in) of rainfall per year. Castle Bruce can be quite wet during October, receiving approximately 162 mm (6.4 in) of precipitation over 19 rainy days.
In contrast, during the driest month (March), you will experience much drier conditions, with 46 mm (1.8 in) of precipitation spread across 14 rainy days. For more details, please visit our Castle Bruce Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Castle Bruce
Castle Bruce experiences moderate variation in sunshine hours across the seasons. With 8.2 hours daily sunshine in April, it dips to 6.3 hours in December, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Castle Bruce by Month
The relative humidity is high throughout the year in Castle Bruce.
The city experiences its highest humidity in November, reaching 74%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Castle Bruce
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May, June and December
- Warmest weather: May, June, July, August, September, October, November and December
- Most sunshine: April, May and August
- Fewest rainy days: February, March and April
Frequently asked questions about the climate in Castle Bruce
What is the best time to visit Castle Bruce?
January, February, March, April, May, June and December typically offer the most optimal weather in Castle Bruce. In contrast, July, August, September, October and November tend to have less optimal conditions.
What temperatures can I expect in Castle Bruce?
Daytime highs range from 26°C (79°F) in February to 29°C (84°F) in September. Nighttime lows range from 24°C (75°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Castle Bruce get?
Annual rainfall is around 1220 mm (48 in). October is the wettest month with 162 mm (6.4 in), while March is the driest with 46 mm (1.8 in).
How sunny is Castle Bruce?
Castle Bruce receives around 2,630 hours of sunshine per year. April is the sunniest month with 245 hours, while December is the cloudiest with just 190 hours. Overall, Castle Bruce enjoys abundant sunshine.
Castle Bruce 3-Day Forecast
Castle Bruce on the map
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Popular this month
Where to go in August - average daytime high across popular destinations.