Hillsborough Weather & Climate: Best Time to Visit

In Hillsborough temperatures are generally consistent throughout the year. Average daytime temperatures reach a comfortable 30°C (86°F) in September. In February, the coolest month of the year, temperatures drop to a comfortable 28°C (82°F).

At night, temperatures range from around 27°C (81°F) in September to 25°C (77°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Hillsborough experiences significant rainfall throughout the year, averaging 1232 mm (49 in) of precipitation annually. Hillsborough can be quite wet during October, receiving approximately 169 mm (6.7 in) of precipitation over 17 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 37 mm (1.5 in) of precipitation spread across 10 rainy days days. For more details, please visit our Hillsborough Precipitation page.

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

The average number of days each month with precipitation

Hillsborough experiences moderate variation in sunshine hours across the seasons. With 9.3 hours daily sunshine in January, it dips to 7.0 hours in June, offering a balanced mix of sunny and overcast days.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine