Roseau weather in March
In March, Roseau sees average daytime highs of 25°C and overnight lows near 24°C, with 19 mm of rain across 6.9 wet days and about 11.9 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 74% of the time in March, and the air most often feels muggy.
Daylight stretches from about 11 h 42 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Roseau's 3rd-clearest and 6th-windiest month. For the whole year in context, see Roseau's year-round climate.
- Daytime high
- 25°
- 11th warmest
- Overnight low
- 24°
- 2nd coldest
- Rainfall
- 19 mm
- 6.9 wet days
- Daylight
- 11 h 54 min
- 6:18 AM – 6:12 PM
- Cloud cover
- 31%
- 3rd clearest
- Wind
- 27 km/h
- 6th windiest
- Solar energy
- 6.44 kWh/m²
- Travel score
- 7.8
- out of 10
Roseau is capital of Dominica.
- Density
- 3,069/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 25°C through the month.
A typical March day in Roseau reaches about 25°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 26°C. Set against its neighbours, March runs on par with February and on par with April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 24 |
| 2 | 25 | 24 |
| 3 | 25 | 24 |
| 4 | 25 | 24 |
| 5 | 25 | 24 |
| 6 | 25 | 24 |
| 7 | 25 | 24 |
| 8 | 25 | 24 |
| 9 | 25 | 24 |
| 10 | 25 | 24 |
| 11 | 25 | 24 |
| 12 | 25 | 24 |
| 13 | 25 | 24 |
| 14 | 25 | 24 |
| 15 | 25 | 24 |
| 16 | 25 | 24 |
| 17 | 25 | 24 |
| 18 | 25 | 24 |
| 19 | 25 | 24 |
| 20 | 25 | 24 |
| 21 | 25 | 24 |
| 22 | 25 | 24 |
| 23 | 26 | 24 |
| 24 | 26 | 24 |
| 25 | 26 | 24 |
| 26 | 26 | 24 |
| 27 | 26 | 24 |
| 28 | 26 | 24 |
| 29 | 26 | 24 |
| 30 | 26 | 25 |
| 31 | 26 | 25 |
Roseau weather by month
How March compares with the rest of the year at a glance. March is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 24° | 32 | 12 | 11.2 | 7.1 |
| Feb | 25° / 24° | 19 | 7 | 11.5 | 7.8 |
| Mar | 25° / 24° | 19 | 6.9 | 11.9 | 7.8 |
| Apr | 26° / 25° | 29 | 8.3 | 12.3 | 7.2 |
| May | 27° / 25° | 44 | 10.2 | 12.7 | 6.7 |
| Jun | 27° / 26° | 47 | 10.5 | 12.9 | 6.4 |
| Jul | 27° / 26° | 76 | 16.4 | 12.8 | 5.8 |
| Aug | 28° / 26° | 99 | 18.4 | 12.5 | 5.4 |
| Sep | 28° / 26° | 113 | 17.1 | 12.1 | 5.3 |
| Oct | 28° / 26° | 118 | 19.1 | 11.7 | 5.2 |
| Nov | 27° / 26° | 101 | 17.1 | 11.3 | 5.7 |
| Dec | 26° / 25° | 48 | 14.2 | 11.1 | 6.4 |
Cloud cover in March
The sky is clear or mostly clear about 74% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 11% of March, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 89 | 88 | 88 | 88 | 88 | 88 | 87 | 88 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 86 | 86 | 86 | 85 | 85 | 85 | 84 | 83 | 83 | 83 | 83 | 82 | 81 | 81 | 80 | 79 |
| Cloudier (%) | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 20 | 21 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 89 | 11 |
| 2 | 88 | 12 |
| 3 | 88 | 12 |
| 4 | 88 | 12 |
| 5 | 88 | 12 |
| 6 | 88 | 12 |
| 7 | 87 | 13 |
| 8 | 88 | 12 |
| 9 | 88 | 12 |
| 10 | 88 | 12 |
| 11 | 88 | 12 |
| 12 | 88 | 12 |
| 13 | 88 | 12 |
| 14 | 87 | 13 |
| 15 | 87 | 13 |
| 16 | 86 | 14 |
| 17 | 86 | 14 |
| 18 | 86 | 14 |
| 19 | 85 | 15 |
| 20 | 85 | 15 |
| 21 | 85 | 15 |
| 22 | 84 | 16 |
| 23 | 83 | 17 |
| 24 | 83 | 17 |
| 25 | 83 | 17 |
| 26 | 83 | 17 |
| 27 | 82 | 18 |
| 28 | 81 | 19 |
| 29 | 81 | 19 |
| 30 | 80 | 20 |
| 31 | 79 | 21 |
Chance of precipitation in March
Roseau gets around 19 mm of rain over 6.9 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 22% and peaks near 23% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 |
| Rain chance (%) | |
|---|---|
| 1 | 22 |
| 2 | 22 |
| 3 | 22 |
| 4 | 22 |
| 5 | 22 |
| 6 | 22 |
| 7 | 22 |
| 8 | 22 |
| 9 | 23 |
| 10 | 23 |
| 11 | 23 |
| 12 | 23 |
| 13 | 23 |
| 14 | 23 |
| 15 | 23 |
| 16 | 23 |
| 17 | 23 |
| 18 | 22 |
| 19 | 22 |
| 20 | 22 |
| 21 | 22 |
| 22 | 22 |
| 23 | 22 |
| 24 | 22 |
| 25 | 22 |
| 26 | 22 |
| 27 | 22 |
| 28 | 22 |
| 29 | 22 |
| 30 | 23 |
| 31 | 23 |
Humidity in March
Most of March feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the muggy band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 73 | 72 | 71 | 70 | 69 | 69 | 68 | 67 | 66 | 65 | 65 | 64 | 65 | 64 | 63 | 62 | 62 | 61 | 60 | 60 | 59 | 58 | 57 | 56 | 55 | 53 | 53 | 51 | 49 | 47 | 45 |
| Oppressive (%) | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 38 | 40 | 41 | 43 | 44 | 46 | 47 | 49 | 51 | 53 | 55 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 5 | 73 | 22 |
| 2 | 5 | 72 | 23 |
| 3 | 6 | 71 | 23 |
| 4 | 6 | 70 | 24 |
| 5 | 6 | 69 | 25 |
| 6 | 6 | 69 | 25 |
| 7 | 6 | 68 | 26 |
| 8 | 7 | 67 | 26 |
| 9 | 7 | 66 | 27 |
| 10 | 7 | 65 | 28 |
| 11 | 7 | 65 | 28 |
| 12 | 7 | 64 | 29 |
| 13 | 6 | 65 | 29 |
| 14 | 6 | 64 | 30 |
| 15 | 6 | 63 | 31 |
| 16 | 6 | 62 | 32 |
| 17 | 5 | 62 | 33 |
| 18 | 5 | 61 | 34 |
| 19 | 4 | 60 | 36 |
| 20 | 3 | 60 | 37 |
| 21 | 3 | 59 | 38 |
| 22 | 2 | 58 | 40 |
| 23 | 2 | 57 | 41 |
| 24 | 1 | 56 | 43 |
| 25 | 1 | 55 | 44 |
| 26 | 1 | 53 | 46 |
| 27 | 0 | 53 | 47 |
| 28 | 0 | 51 | 49 |
| 29 | 0 | 49 | 51 |
| 30 | 0 | 47 | 53 |
| 31 | 0 | 45 | 55 |
Wind in March
Winds average 27 km/h in March.
Across March, daily wind ranges from about 26 km/h on the calmest days to 29 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 29 | breezy |
| 2 | 29 | breezy |
| 3 | 29 | breezy |
| 4 | 28 | breezy |
| 5 | 28 | breezy |
| 6 | 28 | breezy |
| 7 | 28 | breezy |
| 8 | 28 | breezy |
| 9 | 28 | breezy |
| 10 | 28 | breezy |
| 11 | 28 | breezy |
| 12 | 28 | breezy |
| 13 | 28 | breezy |
| 14 | 28 | breezy |
| 15 | 27 | breezy |
| 16 | 27 | breezy |
| 17 | 27 | breezy |
| 18 | 27 | breezy |
| 19 | 27 | breezy |
| 20 | 27 | breezy |
| 21 | 27 | breezy |
| 22 | 27 | breezy |
| 23 | 27 | breezy |
| 24 | 27 | breezy |
| 25 | 27 | breezy |
| 26 | 26 | breezy |
| 27 | 26 | breezy |
| 28 | 26 | breezy |
| 29 | 26 | breezy |
| 30 | 26 | breezy |
| 31 | 26 | breezy |
Sunrise & sunset in March
Daylight runs from about 11 h 42 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over March. Sunrise moves from 6:28 AM to 6:07 AM, and sunset from 6:09 PM to 6:14 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:28 | 6:28 | 6:27 | 6:27 | 6:26 | 6:25 | 6:25 | 6:24 | 6:23 | 6:23 | 6:22 | 6:21 | 6:21 | 6:20 | 6:19 | 6:18 | 6:18 | 6:17 | 6:16 | 6:15 | 6:15 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:09 | 6:09 | 6:08 | 6:07 |
| Sunset (PM) | 6:09 | 6:09 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:11 | 6:11 | 6:11 | 6:11 | 6:11 | 6:12 | 6:12 | 6:12 | 6:12 | 6:12 | 6:12 | 6:12 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:28 | 6:09 |
| 2 | 11.7 | 6:28 | 6:09 |
| 3 | 11.7 | 6:27 | 6:10 |
| 4 | 11.7 | 6:27 | 6:10 |
| 5 | 11.7 | 6:26 | 6:10 |
| 6 | 11.7 | 6:25 | 6:10 |
| 7 | 11.8 | 6:25 | 6:10 |
| 8 | 11.8 | 6:24 | 6:11 |
| 9 | 11.8 | 6:23 | 6:11 |
| 10 | 11.8 | 6:23 | 6:11 |
| 11 | 11.8 | 6:22 | 6:11 |
| 12 | 11.8 | 6:21 | 6:11 |
| 13 | 11.8 | 6:21 | 6:12 |
| 14 | 11.9 | 6:20 | 6:12 |
| 15 | 11.9 | 6:19 | 6:12 |
| 16 | 11.9 | 6:18 | 6:12 |
| 17 | 11.9 | 6:18 | 6:12 |
| 18 | 11.9 | 6:17 | 6:12 |
| 19 | 11.9 | 6:16 | 6:12 |
| 20 | 12.0 | 6:15 | 6:13 |
| 21 | 12.0 | 6:15 | 6:13 |
| 22 | 12.0 | 6:14 | 6:13 |
| 23 | 12.0 | 6:13 | 6:13 |
| 24 | 12.0 | 6:12 | 6:13 |
| 25 | 12.0 | 6:12 | 6:13 |
| 26 | 12.0 | 6:11 | 6:13 |
| 27 | 12.1 | 6:10 | 6:13 |
| 28 | 12.1 | 6:09 | 6:14 |
| 29 | 12.1 | 6:09 | 6:14 |
| 30 | 12.1 | 6:08 | 6:14 |
| 31 | 12.1 | 6:07 | 6:14 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.44 kWh/m².
For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.7 kWh/m² in April across the year — March's 6.44 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.3 | Intense |
| 9 | 6.3 | Intense |
| 10 | 6.3 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.4 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.5 | Intense |
| 16 | 6.5 | Intense |
| 17 | 6.5 | Intense |
| 18 | 6.5 | Intense |
| 19 | 6.5 | Intense |
| 20 | 6.5 | Intense |
| 21 | 6.6 | Intense |
| 22 | 6.6 | Intense |
| 23 | 6.6 | Intense |
| 24 | 6.6 | Intense |
| 25 | 6.6 | Intense |
| 26 | 6.6 | Intense |
| 27 | 6.6 | Intense |
| 28 | 6.6 | Intense |
| 29 | 6.6 | Intense |
| 30 | 6.7 | Intense |
| 31 | 6.7 | Intense |
Hazard calendar for Roseau
None of Roseau's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Roseau sits in the Atlantic hurricane belt; the season peaks August–October.
Roseau's rainy season runs July–November, when most of the year's rain falls.
Roseau sees seasonal dust haze (June–July), heaviest in June.
Is March a good time to visit Roseau?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is one of the better times to visit Roseau for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Roseau in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Roseau sees daytime highs around 25°C and nights near 24°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 7 days see rain.
Sea temperature near Roseau in March
The nearest coast averages about 27°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 29°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Roseau in March
Clear-sky midday UV in March peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Roseau peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 11 | 14 | 13 | 12 | 11 | 12 | 11 | 12 | 11 | 8 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 8 | Very high |
Air quality in Roseau in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Roseau is worst in June — around 28 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 13 | 11 | 15 | 18 | 28 | 26 | 21 | 16 | 18 | 12 | 9 |
| Level | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 11 | Good |
| Apr | 15 | Moderate |
| May | 18 | Moderate |
| Jun | 28 | Moderate |
| Jul | 26 | Moderate |
| Aug | 21 | Moderate |
| Sep | 16 | Moderate |
| Oct | 18 | Moderate |
| Nov | 12 | Moderate |
| Dec | 9 | Good |
Where is Roseau?
Roseau sits at 15.3°N, 61.4°W, 11 m above sea level, in Dominica. The nearest listed city is Sainte-Marie, 72 km away.
Topography around Roseau
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Roseau.
Within 3 km, the terrain around Roseau has significant variations in elevation — a maximum elevation change of 417 m around an average of 66 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,383 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,389 m.
The land around Roseau is covered by water (55%) and trees (38%) within 3 km, water (58%) and trees (41%) within 16 km, and water (89%) within 80 km.
Dominica travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type D / G
- 230 V · 50 Hz
- Prices
- ≈ 48% of US
- price level, 2025
- GDP per capita
- $10,989
- 2025
- Homicide rate
- 27.1
- per 100k, 2023
- Road deaths
- 10.9
- per 100k/yr, 2016
- Income group
- Upper middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Roseau (15.3017°, -61.3881°, elevation 11 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).