Hillingdon Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Hillingdon, Greater London, United Kingdom. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

Seasonal sunshine in Hillingdon varies. It peaks at 219 hours in July and drops to 54 hours in December. The total annual amount of sun is 1675 hours.

Daily hours of sunshine

For those who appreciate different seasons, Hillingdon serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 7.3 hours of sunshine daily, and embrace the darker days in December, offering only 1.8 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 45% of the time during the day in August, the highest percentage of any month. December has the lowest percentage at 21%.

Hillingdon enjoys an average of 1675 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

November, Hillingdon’s wettest month, receives 60 mm (2.4 in) of rainfall and has a maximum daytime temperature of 12°C (54°F). During the driest month March you can expect a temperature of 12°C (54°F).

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