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Dominica Weather September 2026

Roseau — 5-day outlook: brief passing showers likely, mainly on Friday

Dominica flag Current Conditions — Dominica

Updated: 2026-09-02 1:00 AM AST 19 min ago

Rain radar around Dominica right now Open the interactive mapOpen Map zoom, favourites, closest approach Radar 20 min ago

PrecipitationPrecip: Light Heavy·Clouds: Thin Dense

Precipitation and cloud overlays usually run 10–30 mins behind what you see outside.Radar/Clouds 10–30 mins behind what you see outside.

Hourly Weather Forecast

2 AM 26° 79° 11 km/h ESE 6 mph ESE Cloudy 34%
3 AM 26° 79° 11 km/h E 6 mph E Cloudy 40%
4 AM 26° 80° 11 km/h E 6 mph E Light shower 55%
5 AM 27° 80° 13 km/h E 8 mph E Light shower 51%
6 AM 27° 80° 13 km/h E 8 mph E Cloudy 49%
7 AM 28° 82° 14 km/h E 9 mph E Partly cloudy 49%
8 AM 28° 83° 14 km/h ESE 9 mph ESE Light shower 51%
9 AM 29° 85° 14 km/h ESE 9 mph ESE Light shower 49%
10 AM 30° 86° 16 km/h ESE 10 mph ESE Mostly clear 34%
11 AM 31° 87° 16 km/h ESE 10 mph ESE Light shower 40%
12 PM 32° 89° 16 km/h ESE 10 mph ESE Mostly clear 37%
1 PM 31° 88° 16 km/h ESE 10 mph ESE Mostly clear 2%

Hourly temperatures are from earlier forecast estimates, and often differ from the current temperature.

5-Day Weather Forecast

Brief passing showers likely, mainly on Friday.

Percentages show the chance of rain at any point during a 24-hour day, NOT the percentage of the day with rain.

Weather history

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🌧️ Rainfall accuracy & sources

Our rainfall comes from weather-model data that measures an area covering the island, not from a single rain gauge. A gauge reports exactly what fell into one bucket at one location. An area figure describes the island as a whole, which is what matters when comparing islands or tracking a wet spell.

Anyone who lives in the region knows tropical rain is hyper-local. One district can have water running in the streets while another stays completely dry. When that happens, an island-wide figure will read lower than what the wettest neighborhood experienced. That is not a missed reading. It is an average across the whole island.

Rainfall estimates are refined as more observations arrive. Our system re-checks recent hours and updates past totals as our sources revise them, usually within a few hours. If it poured today and the chart looks light, please check back. Totals typically settle within 24 to 48 hours. Each month we also compare our totals against the ERA5 climate record as an integrity check.

Island Rankings

How does Dominica compare? 18 Eastern Caribbean islands ranked by temperature, wind, and rainfall.

Compare 18 islands, your way Averages, feels-like, humidity and more.
De Wedda — weather watchers are following the Eastern Caribbean islands from near and far.— weather watchers.

Official Resources

Disaster preparedness resources for Dominica.

Local News

Popular news outlets covering Dominica.

Dominica Climate Guide

Climate Overview

Dominica has a tropical rainforest climate and is one of the wettest islands in the Caribbean. The dry season runs from January to mid-April, with the wet season from mid-June through November driven by the northward migration of the Inter-Tropical Convergence Zone.

Annual rainfall varies enormously by location: the western coast around Roseau receives approximately 2,000 mm79 in, while the mountainous interior receives up to 7,000 mm276 in, among the highest totals in the Caribbean.

Daytime highs at the coast are a stable 29-31 °C84-88 °F year-round, with overnight lows of 21-24 °C70-75 °F. Northeast trade winds provide some cooling at the coast but are forced sharply upward by the island's extreme terrain, triggering the heavy orographic rainfall that defines Dominica's climate.

Monthly Climate Averages

Long-term average temperature and rainfall for Dominica by month.

Month Avg High °C°F Avg Low °C°F Rainfall mmin Rainy Days
Jan298421701365.418
Feb29842170873.414
Mar29842170642.513
Apr30862272742.912
May318823731375.416
Jun318824751857.319
Jul318824752469.721
Aug318824752509.821
Sep318823732248.820
Oct318823732198.620
Nov308622722529.919
Dec298421701766.918

Coastal averages (Roseau area). Mountain interior rainfall is significantly higher.

Hurricane History

Dominica's location in the Windward Islands places it directly in the path of Cape Verde-type hurricanes. Hurricane David (1979, Category 4) struck with 240 km/h150 mph winds, killing 56 people and leaving 75% of the population homeless.

It was the worst disaster in modern history until Maria. Hurricane Dean (2007) also caused severe infrastructure damage estimated at 58% of GDP.

Tropical Storm Erika (2015) demonstrated that for mountainous islands, rainfall can be more destructive than wind. Despite being only a tropical storm, it dumped up to 850 mm33 in of rain, triggering catastrophic mudslides that killed 30 people and caused damage estimated at 90% of GDP.

The village of Petite Savanne was buried and had to be permanently evacuated.

Hurricane Maria (2017, Category 5) made direct landfall with 260 km/h160 mph winds. It was the first Category 5 to strike Dominica, killing 65 people and damaging or destroying 95% of the housing stock. Damage was estimated at 226% of GDP.

Geography & Terrain

Dominica is the most mountainous island in the Lesser Antilles, covering 750 km²290 sq mi with a volcanic spine running northwest to southeast. Morne Diablatins, the highest peak at 1,447 m4,747 ft, is a dormant stratovolcano in the north, while Morne Trois Pitons (1,342 m4,403 ft) anchors the UNESCO World Heritage-listed national park in the south.

The park contains the Boiling Lake, the world's second-largest hot lake, along with numerous fumaroles, hot springs, and volcanic craters. Roughly 60% of the island is covered in tropical rainforest, sustained by the extreme orographic rainfall.

Trade winds hitting the steep terrain are forced upward, producing an enhancement factor of 2 to 8 times the coastal rainfall. Dominica is known as "The Nature Island of the Caribbean" and is said to have 365 rivers, one for every day of the year. The steep terrain and narrow coastal lowlands make the island particularly vulnerable to flash flooding and landslides during heavy rainfall events.

Climate normals based on published data from multiple meteorological sources including Canefield Airport records. Monthly values are approximate long-term averages for coastal locations.

Frequently Asked Questions

What is the weather like in Dominica right now?

Right now in Dominica it is 27°C (81°F), feels like 27°C (81°F), with Cloudy and winds at 15 km/h (9 mph). Humidity is 84%. This page updates hourly with live observations.

Is it raining in Dominica today?

No, Dominica currently has Cloudy with a temperature of 27°C (81°F). Conditions are updated hourly — check the forecast section for the outlook ahead.

What is the temperature in Dominica right now?

The current temperature in Dominica is 27°C (81°F), with a feels-like temperature of 27°C (81°F). Humidity is at 84%. This reading is updated hourly from official weather data.

When is the best time to visit Dominica?

The dry season from December to May typically offers the best weather in Dominica, with lower humidity, less rainfall, and minimal hurricane risk. February to April tends to be the driest period. Read the full month-by-month guide.

Does Dominica get hurricanes?

Yes, Dominica is in the Atlantic hurricane belt. Hurricane season runs from June 1 to November 30, with peak activity from August to October. Dewedda.com tracks storm distances to Dominica in real time when systems are active.

When is hurricane season in Dominica?

Hurricane season in the Eastern Caribbean runs from June 1 to November 30, with peak activity between August and October. Outside this window, tropical storms are rare. Check the forecast and active storm sections on this page for current conditions.

NOTE: Weather data is collected hourly. The 3‑day view shows hourly readings, the 7‑day view averages every 3 hours, the 30‑day view shows daily averages, the 1‑year view shows weekly averages, and the 3‑year view shows monthly averages.

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