Westerly (RI) Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Westerly, Rhode Island, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Westerly. Expect long, bright days with 290 hours in July and darker periods with just 147 hours in November. The total annual amount of sun is 2598 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Westerly. While July receives considerable daily sunshine with up to 9.7 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 63% of the time during the day in July, the highest percentage of any month. November has the lowest percentage at 49%.

Westerly enjoys an average of 2598 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

December, Westerly’s wettest month, receives 107 mm (4.2 in) of rainfall and has a maximum daytime temperature of 7°C (45°F). During the driest month August you can expect a temperature of 27°C (81°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Westerly Precipitation page.