Average Monthly Sunshine in Castlereagh

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

Monthly hours of sunshine

If you're visiting Castlereagh, timing is key. In May, you can enjoy up to 184 hours of sunshine, while the shorter days of December provide just 39 hours. The total annual amount of sun is 1297 hours.

Daily hours of sunshine

For those who appreciate different seasons, Castlereagh serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.1 hours of sunshine daily, and embrace the darker days in December, offering only 1.3 hours of daily sunlight.

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

Castlereagh enjoys an average of 1297 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, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

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.

Other climate information

October, Castlereagh’s wettest month, receives 93 mm of rainfall and has a maximum daytime temperature of 14°C. During the driest month March you can expect a temperature of 10°C.

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