Harwich Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Harwich.
Climate overview of Harwich
Harwich, located on Cape Cod in the United States of America, experiences a wide range of weather throughout the year. Temperatures shift from warm in the summer to cold in the winter months. The area is also known for receiving a good amount of both rain and snowfall, especially during seasonal transitions. With its coastal charm, beaches, and harbors, Harwich is a favorite destination for summer visitors. Let's now guide you through the climate details for a complete overview.
Harwich Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Harwich — and find the best time to visit.
Monthly Temperature in Harwich
Depending on the time of the year, temperatures range from comfortable to chilly in Harwich. Typically, average maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a chilly 4°C (39°F) in the coolest month, February.
Nights vary from 19°C (66°F) in July to around -4°C (25°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Harwich
Harwich has a relatively rain/snowy climate with high precipitation levels, averaging 1220 mm (48 in) of rain/snowfall annually. Harwich offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (136 mm (5.4 in)) and the driest month August (77 mm (3 in)) is not too significant. For more details, please visit our Harwich 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 Harwich
For those who appreciate different seasons, Harwich serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.0 hours of sunshine daily, and embrace the darker days in January, offering only 4.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Harwich
Rainfall during this time ranges from 77 mm (3 in) in August to 96 mm (3.8 in) in June. This means you can expect a mix of sunny days and occasional showers. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Harwich
What is the best time to visit Harwich?
June, July, August and September typically offer the most optimal weather in Harwich. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Harwich?
Daytime highs range from 4°C (39°F) in February to 26°C (79°F) in July. Nighttime lows range from -4°C (25°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Harwich get?
Annual rainfall is around 1220 mm (48 in). December is the wettest month with 136 mm (5.4 in), while August is the driest with 77 mm (3 in).
How sunny is Harwich?
Harwich receives around 2,605 hours of sunshine per year. July is the sunniest month with 301 hours, while January is the cloudiest with just 147 hours. Overall, Harwich enjoys abundant sunshine.
Harwich 3-Day Forecast
Harwich 3-Day Forecast
Harwich on the map
Harwich is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
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