West Haven (CT) Weather & Climate: Best Time to Visit

The climate in West Haven is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in July to a chilly 4°C (39°F) in the coolest month, February.

Nights vary from 20°C (68°F) in July to around -5°C (23°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

West Haven has a notably wet climate with abundant precipitation, recording 1261 mm (50 in) of rain/snowfall per year. Precipitation levels in West Haven remain relatively steady throughout the year. June has the most rain, with 130 mm (5.1 in) over 14 days. In the driest month November, this drops slightly to 86 mm (3.4 in), making the city's climate fairly predictable. For more details, please visit our West Haven 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, West Haven serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.8 hours of sunshine daily, and embrace the darker days in November, offering only 4.6 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 West Haven.

The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year