Rockport (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rockport.
Climate overview of Rockport
The climate in Rockport, Massachusetts, United States of America, is marked by large temperature swings across the seasons, ranging from 25°C (77°F) in July to 2°C (36°F) in February.
The city has a wet climate, receiving around 1278 mm (50 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. December is the wettest month. May is the sunniest month, averaging 10.0 hours of sunshine per day.
Rockport Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rockport - and find the best time to visit.
Monthly Temperature in Rockport
In Rockport, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 25°C (77°F) in July to a chilly 2°C (36°F) in February.
Nighttime temperatures range from 18°C (64°F) in July to -6°C (21°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rockport
Rockport experiences significant rain/snowfall throughout the year, averaging 1278 mm (50 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 141 mm (5.6 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, September, still receives a respectable 79 mm (3.1 in) of rainfall. For more details, please visit our Rockport Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Rockport
In Rockport, summer days are longer and more sunny, with daily sunshine hours peaking at 10.0 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Rockport by Month
The relative humidity is high throughout the year in Rockport.
The city experiences its highest humidity in August, reaching 72%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Rockport
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: July and August
- Most sunshine: May and July
- Fewest rainy days: February, August, September and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: February, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Rockport
What is the best time to visit Rockport?
August and September typically offer the most optimal weather in Rockport. In contrast, January, February, March, November and December tend to have less optimal conditions. Rockport has warm summers and cold winters.
What temperatures can I expect in Rockport?
Daytime highs range from 2°C (36°F) in February to 25°C (77°F) in July. Nighttime lows range from -6°C (21°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Rockport get?
Annual rainfall is around 1278 mm (50 in). December is the wettest month with 141 mm (5.6 in), while September is the driest with 79 mm (3.1 in).
How sunny is Rockport?
Rockport receives around 2,665 hours of sunshine per year. May is the sunniest month with 301 hours, while December is the cloudiest with just 141 hours. Overall, Rockport enjoys abundant sunshine.
Rockport 3-Day Forecast
Rockport (MA) 3-Day Forecast
Rockport on the map
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