Castlehaven Weather & Climate: Best Time to Visit

The weather in Castlehaven changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 11°C (52°F) in the coolest month, January.

Nights vary from 13°C (55°F) in July to around 5°C (41°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Castlehaven experiences significant rainfall throughout the year, averaging 1125 mm (44 in) of precipitation annually. Precipitation levels in Castlehaven remain relatively steady throughout the year. December has the most rain, with 122 mm (4.8 in) over 22 days. In the driest month May, this drops slightly to 75 mm (3 in), making the city's climate fairly predictable. For more details, please visit our Castlehaven Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Castlehaven serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.5 hours of sunshine daily, and embrace the darker days in December, offering only 1.9 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Castlehaven.

The city experiences its highest humidity in December, reaching 85%. In April, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year