Harbour Island — locally known as Briland — enjoys a warm tropical climate year-round. Daytime highs rarely drop below 76°F even in January, and summer temperatures typically reach the high 80s. Whether you are planning a trip to Pink Sand Beach, booking one of the island's hotels or resorts, or just curious about conditions in Dunmore Town today, the forecast below is updated automatically from NOAA data several times a day.
What Is the Weather Forecast for Harbour Island, Bahamas?
Friday, June 26Thunderstorm — High: 89°F / Low: 80°F
Precipitation: 0.00″ (5% chance)
Saturday, June 27
Thunderstorm — High: 89°F / Low: 81°F
Precipitation: 0.00″ (6% chance)
Sunday, June 28
Thunderstorm — High: 87°F / Low: 81°F
Precipitation: 0.00″ (3% chance)
Harbour Island Accuweather 25-Day Forecast
Eleuthera Island Weather Report and Tide Tables
What Is the Average Temperature for Harbour Island, Bahamas?
Monthly Weather Averages — Dunmore Town, Harbour Island
The table below shows long-term climate averages for Harbour Island. The driest months are typically April and June, while August through November can bring higher rainfall and the possibility of tropical storms. Hurricane season runs from June through November, with September and October historically the most active months for the Bahamas.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Daily Maximum Temperature — F° | |||||||||||
| 76 | 79 | 80 | 82 | 86 | 86 | 89 | 90 | 89 | 88 | 83 | 80 |
| Mean Daily Minimum Temperature — F° | |||||||||||
| 65 | 68 | 66 | 69 | 73 | 76 | 79 | 78 | 74 | 75 | 73 | 68 |
| Monthly Rainfall — Inches | |||||||||||
| 3.4 | 3.2 | 2.2 | .96 | 4.0 | 1.2 | 3.0 | 5.5 | 1.3 | 4.3 | 5.4 | 3.1 |
| Number of Rain Days | |||||||||||
| 6 | 4 | 3 | 3 | 5 | 2 | 4 | 7 | 4 | 6 | 8 | 7 |
Weather Radar for Harbour Island and the Bahamas
Use the live satellite and radar links below to track storms approaching Harbour Island and the wider Bahamas and Caribbean region.
Wunderground Caribbean Radar Map
Real-Time GOES Imagery — Satellite Views of the Bahamas and Caribbean:
Space, Science & Engineering Interactive Geostationary Satellite Images
Current Hurricane Reports for the Bahamas
National Hurricane Center — Atlantic Basin Advisories
The advisories below are pulled directly from the NOAA National Hurricane Center and cover all active or potential tropical systems in the Atlantic basin that could affect Harbour Island and the Bahamas.
NHC Atlantic
Active tropical cyclones in the Atlantic, Caribbean, and the Gulf of AmericaThere are no tropical cyclones at this time.
No tropical cyclones as of Sat, 27 Jun 2026 00:44:51 GMT
Posted on 28 June 2026 | 6:12 am
Atlantic Tropical Weather Outlook
000
ABNT20 KNHC 262312
TWOAT
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 PM EDT Fri Jun 26 2026
For the North Atlantic...Caribbean Sea and the Gulf of America:
Tropical cyclone formation is not expected during the next 7 days.
$$
Forecaster Reinhart
Posted on 26 June 2026 | 6:12 pm