Average Monthly Sunshine in Greenwich (CT)

The graphs on this page shows the average number of hours per month and per day that Greenwich receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Greenwich varies. It peaks at 271 hours in July and drops to 141 hours in December. The total annual amount of sun is 2540 hours.

Daily hours of sunshine

Summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours.

Greenwich’s total hours of sunshine compared to other major cities

Greenwich enjoys an average of 2540 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.

Other climate information

June, Greenwich’s wettest month, receives 96 mm of rainfall and has a maximum daytime temperature of 26°C. During the driest month November you can expect a temperature of 12°C.

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