Island Harbour Weather & Climate: Best Time to Visit

In Island Harbour temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in August, the warmest time of the year, to a comfortable 27°C (81°F) during cooler months like February.

At night, you can expect temperatures ranging from 27°C (81°F) in August to around 24°C (75°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Island Harbour receives a reasonable amount of rainfall, with an annual precipitation of 919 mm (36 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives high rainfall, averaging 141 mm (5.6 in) of precipitation, recorded across 20 rainy days. In contrast, the driest month March brings less rainfall, with 33 mm (1.3 in) over 13 rainy days. For more details, please visit our Island Harbour Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Year-round, Island Harbour offers plenty of sunlight to enjoy during your holiday. The difference between the sunniest month, August, with 9.5 hours of daily sunshine, and September, the least sunny month, with 7.7 hours, is minimal.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Island Harbour.

The city experiences its highest humidity in October, reaching 80%. In February, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year