Weather in Dominica in September 2025
Average weather
Average temperature in Dominica in September
The temperature in September is +28°C on average, with a range between a maximum of +29°C during the day and a minimum of +26°C at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +28°C to +28°C.
Is Dominica warm or cold in September?
Dominica is typically warm in September.
Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +25°C to +25°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Dominica, here is the comparison with other months:
Climate in Dominica in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +28°C | +28°C | ||||
| Min. temperature | ||||||
| +21°C | +22°C | +21°C | ||||
| Max. temperature | ||||||
| +34°C | +35°C | +35°C | ||||
| Rainfall | ||||||
| 140 mm | 142 mm | 156 mm | ||||
| Wind | ||||||
| 5 m/s | 4 m/s | 5 m/s | ||||
| Humidity | ||||||
| 82% | 82% | 82% | ||||
| Air pressure | ||||||
| 1014 HPa | 1012 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 2 | 2 | 2 | ||||
| Rainy days | ||||||
| 28 | 25 | 27 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +28°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 140 mm to 142 mm. Humidity levels don’t change as the month goes on, averaging around 82%. Winds are calmer in comparison to August, going down from 5 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Dominica is gradually decreasing during September, going from 5 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Dominica?
Climate Change over Years
The climate in Dominica in September has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+25°C) and the highest in 2020 (+31°C). The driest year was 2021 with only 845 mm of rainfall, and the wettest year was 2011 with 1758 mm.
FAQ
Is September a good time to visit Dominica?
Can you sunbathe in Dominica in September?
Is Dominica rainy in September?
Is it sunny in Dominica in September?
Monthly weather in Dominica
Source of the data
For this page, we’ve looked at the typical weather in Dominica, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
