worldweather

Weather in Roseau - 14-day forecast

Detailed weather forecast for Roseau, Dominica: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Roseau
today🌧️ 34°💧 1.5 mm
Sun🌧️ 34°💧 1.4 mm
Mon🌧️ 29°💧 1.3 mm
Tue🌧️ 28°💧 3.2 mm
Wed🌧️ 28°💧 11.6 mm
Thu🌧️ 28°💧 9.5 mm
Fri🌧️ 28°💧 3.6 mm
Sat🌧️ 27°💧 7.1 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Roseau, the forecast high is 34°C. Typical daytime temperatures at this time of year range from 28°C to 29°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

34°Cexceptionally warm
usually 28°C–29°C
warmer than 99% of similar days
night: exceptionally warm rain: less rain than usual wind: lighter than usual
34°Cexceptionally warm
usually 28°C–29°C
warmer than 99% of similar days
night: near normal rain: less rain than usual wind: lighter than usual
29°Cwarmer than usual
usually 28°C–29°C
warmer than 81% of similar days
night: near normal rain: less rain than usual wind: typical
28°Ccooler than usual
usually 28°C–29°C
cooler than 79% of similar days
night: cooler than usual rain: typical rainfall wind: typical
28°Cnear normal
usually 28°C–29°C
night: cooler than usual rain: more rain than usual wind: typical
28°Cexceptionally cool
usually 28°C–29°C
cooler than 91% of similar days
night: near normal rain: more rain than usual wind: typical
28°Ccooler than usual
usually 28°C–29°C
cooler than 79% of similar days
night: near normal rain: typical rainfall wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
25°30°35° 1981: 28°C1982: 28°C1983: 28°C1984: 28°C1985: 28°C1986: 27°C1987: 28°C1988: 28°C1989: 28°C1990: 28°C1991: 28°C1992: 28°C1993: 28°C1994: 28°C1995: 28°C1996: 28°C1997: 29°C1998: 29°C1999: 29°C2000: 28°C2001: 29°C2002: 29°C2003: 29°C2004: 29°C2005: 29°C2006: 29°C2007: 29°C2008: 29°C2009: 28°C2010: 29°C2011: 29°C2012: 29°C2013: 28°C2014: 28°C2015: 29°C2016: 29°C2017: 29°C2018: 29°C2019: 30°C2020: 29°C2021: 30°C2022: 29°C2023: 30°C2024: 30°C2025: 30°C 2026 forecast: 30°C current forecast 30°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1986 (27°C) and the warmest was 2023 (30°C). The current forecast averages 30°C - higher than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Roseau

Roseau - 14-day weather forecast infographic

Roseau 30 & 45-day weather - long-range outlook

Next 15 days · forecast
28°
around 27° at night · days with rain: 15
Weeks 3-4 · avg for September
32°
around 24° at night · rain chance 50%
Weeks 5-7 · avg for October
31°
around 24° at night · rain chance 56%
The 30 & 45-day outlook for Roseau: the next 15 days are a numerical forecast updated daily - on average 28° by day and 27° at night. Further out we rely on multi-year climate averages: around 32° in September, and about 31° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Roseau

Saturday5 September 2026
🌧️34°light rain
sunrise 05:53 · sunset 18:15 · night 28° · evening 29° · rain 1.46 mm · humidity 75% · wind 5 m/s · clouds 100%
Sunday6 September 2026
🌧️34°light rain
sunrise 05:53 · sunset 18:14 · night 27° · evening 28° · rain 1.41 mm · humidity 78% · wind 6 m/s · clouds 88%
Monday7 September 2026
🌧️29°light rain
sunrise 05:53 · sunset 18:13 · night 27° · evening 28° · rain 1.31 mm · humidity 73% · wind 6 m/s · clouds 28%
Tuesday8 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:13 · night 27° · evening 28° · rain 3.19 mm · humidity 72% · wind 7 m/s · clouds 27%
Wednesday9 September 2026
🌧️28°moderate rain
sunrise 05:54 · sunset 18:12 · night 27° · evening 28° · rain 11.62 mm · humidity 76% · wind 8 m/s · clouds 46%
Thursday10 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:11 · night 27° · evening 28° · rain 9.54 mm · humidity 79% · wind 7 m/s · clouds 83%
Friday11 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:10 · night 27° · evening 28° · rain 3.57 mm · humidity 75% · wind 7 m/s · clouds 42%
Saturday12 September 2026
🌧️27°light rain
sunrise 05:54 · sunset 18:10 · night 25° · evening 27° · rain 7.14 mm · humidity 78% · wind 7 m/s · clouds 100%
Sunday13 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:09 · night 27° · evening 28° · rain 2.49 mm · humidity 78% · wind 7 m/s · clouds 100%
Monday14 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:08 · night 27° · evening 27° · rain 4.56 mm · humidity 78% · wind 6 m/s · clouds 87%
Tuesday15 September 2026
🌧️27°moderate rain
sunrise 05:54 · sunset 18:07 · night 27° · evening 27° · rain 14.01 mm · humidity 80% · wind 5 m/s · clouds 100%
Wednesday16 September 2026
🌧️26°moderate rain
sunrise 05:54 · sunset 18:07 · night 25° · evening 26° · rain 26.37 mm · humidity 83% · wind 8 m/s · clouds 100%
Thursday17 September 2026
🌧️24°moderate rain
sunrise 05:54 · sunset 18:06 · night 25° · evening 23° · rain 23.37 mm · humidity 83% · wind 7 m/s · clouds 100%
Friday18 September 2026
🌧️27°light rain
sunrise 05:54 · sunset 18:05 · night 27° · evening 27° · rain 3.15 mm · humidity 75% · wind 7 m/s · clouds 100%
Saturday19 September 2026
🌧️28°light rain
sunrise 05:54 · sunset 18:04 · night 27° · evening 28° · rain 2.22 mm · humidity 79% · wind 7 m/s · clouds 98%

UV index in Roseau - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTRoseau03681111+9.1UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 20 min9Sat5.099Sun6.099Mon7.098Tue8.099Wed9.098Thu10.099Fri11.095Sat12.098Sun13.098Mon14.094Tue15.098Wed16.097Thu17.098Fri18.099Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Roseau is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Roseau

Water today
29°C
Week avg
29°C
Waves today
0.8 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 29°C6.09 29°C7.09 29°C8.09 29°C9.09 29°C10.09 29°C11.09 29°C12.09 29°C13.09 29°C
Average sea temperature through the year:
Jan 28°CFeb 27°CMar 27°CApr 28°CMay 29°CJun 29°CJul 29°CAug 30°CSep 30°COct 30°CNov 29°CDec 28°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Roseau weather through the year

Roseau - annual climate

Warmest, driest months on average: January, February, March, April.

Nearby and related places

KingstownBasseterreBridgetownSaint CroixScarboroughCharlotte AmaliePort-of-SpainSaipanPort VilaTarawaParamariboTorshavnPago Pago

FAQ - Roseau weather

What is the weather like in Roseau today?
Today it is about 34° during the day and 28° at night, light rain.
How far ahead can I check the forecast for Roseau?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.