Hyannis (MA) Climate by Month
The temperature in Hyannis can vary quite a bit throughout the year.
Temperatures can be warm during the warmest months,
and cold during the cooler months.
It also has a notably wet climate with much precipitation.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
Visitors to Hyannis can expect significant temperature changes throughout the year. Average daytime temperatures range from a comfortable 26°C in July, the warmest time of the year, to a chilly 4°C during cooler months like February. At night, temperatures typically average around -5°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Hyannis is known for its substantial rain/snowfall, with annual precipitation reaching 1259 mm. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 137 mm of precipitation, spread over 14 rainy days. In contrast, August experiences a drier climate, with about 79 mm of rainfall spread across 9 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Hyannis. While July receives considerable daily sunshine with up to 10.0 hours, January marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Hyannis in the United States of America
During the months of June, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 26°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 4°C.
December tops the wettest month list with 137 mm of rainfall.
August is the driest month with 79 mm of precipitation.
July is the sunniest month with an average of 301 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
