Weather in Cape Cod, United States in August

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Visiting Cape Cod, United States in August

August is one of the best months to visit Cape Cod for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in August is marginally cooler than the previous month and temperatures continue to drop into September. August has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 44.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

August has total rainfall of 7.2cm (2.8inches) making it mostly dry with only intermittent light showers. There are only 13.4 days with some rainfall so you can still enjoy the beach on the majority of days.

Sea temperatures are a warm 22°C (72°F). August is a good month for swimming in Cape Cod with comfortable temperatures for most people. The sea temperature in August is slightly warmer than the previous month.

Also consider visiting Cape Cod in one of the other best months of June, July, September, for the best beach weather. Also consider one of our other suggestions for August.

Can you sunbathe in Cape Cod in August?

Yes, August is a good time for sunbathing in Cape Cod.

August has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 44.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. August has total rainfall of 7.2cm (2.8inches) making it mostly dry with only intermittent light showers. There are only 13.4 days with some rainfall so you can still enjoy the beach on the majority of days.

More about August temperature and sunshine.

Can you swim in Cape Cod in August?

Yes, August is a good month for swimming in Cape Cod with warm sea temperatures 22°C (72°F).

More about August sea temperatures.

Is August a good time to holiday in Cape Cod?

Yes, August is a good time for a holiday in Cape Cod.

August has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 44.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. August has total rainfall of 7.2cm (2.8inches) making it mostly dry with only intermittent light showers. There are only 13.4 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a warm 22°C (72°F). August is a good month for swimming in Cape Cod with comfortable temperatures for most people.

More about the August temperatures and sunshine.

Is Cape Cod warm in August?

Yes, Cape Cod is very warm and perfect for sunbathing on clear days in August.

The average maximum temperature in Cape Cod in August is 26°C (78°F). The average maximum temperature is 26°C (79°) in the previous month and 22°C (72°F) in the next month.

The average temperature in Cape Cod in August is 21°C (70°F). The average temperature is 22°C (71°F) in the previous month and 18°C (64°F) in the next month.

More info about the August temperatures and sunshine.

How sunny is Cape Cod in August?

The average day light hours per day in Cape Cod in August are 13.9. The sunshine percentage is 44.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

More about August sunshine.

Temperature in Cape Cod in August

The weather in August is marginally cooler than the previous month and temperatures continue to drop into September. The average maximum temperature in Cape Cod in August is 26°C (78°F). The average maximum temperature is 26°C (79°F) in the previous month and 22°C (72°F) in the next month.

The average temperature in Cape Cod in August is 21°C (70°F). The average temperature is 22°C (71°F) in the previous month and 18°C (64°F) in the next month.

The average minimum temperature in Cape Cod in August is 17°C (63°F). The minimum temperature is 18°C (65°F) in the previous month and 14°C (56°F) in the next month.

Sunshine in Cape Cod in August

The days in August are slightly shorter than the previous month and days continue to get shorter into September. During August the average day light hours are 13.9 per day in Cape Cod. The sunshine percentage is 44.7% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

The ultraviolet index in Cape Cod in August is typically 8.5 during August. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Cape Cod in August

The average sea water temperature in Cape Cod in August is 22.4°C (72.3°F) which is warm and pleasant for relaxing and swimming for long periods. The sea temperature in August is slightly warmer than the previous month.

Rainfall in Cape Cod in August

August weather is slightly drier than the previous month. August has a few more days of rain than the previous month. The average total rainfall in Cape Cod in August is 7.2cm (2.8inches) and on average there are 13.4 rainy days in August making it a pretty wet time to visit the beach.

Humidity in Cape Cod in August

The maximum dew point (an indicator of humidity) in Cape Cod in August is 19°C (67°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 20°C (68°F) in the previous month and 17°C (17°F) in the next month.

The average maximum relative humidity in Cape Cod in August is typically 94.2%. The maximum relative humidity is 94.7% in the previous month and 93.3% in the next month.

The average relative humidity in Cape Cod in August is typically 80.1%. The average relative humidity is 82.2% in the previous month and 78.7% in the next month.

Wind Speed in Cape Cod in August

The average maximum wind speed in Cape Cod in August is typically 20KM/H (13MPH). The average maximum wind speed is 21KM/H (13MPH) in the previous month and 22KM/H (14MPH) in the next month.

The average wind speed in Cape Cod in August is typically 10KM/H (6MPH). The average wind speed is 11KM/H (7MPH) in the previous month and 11KM/H (7MPH) in the next month.

The average wind direction in Cape Cod in August is from the South West.

Monthly Averages

Suggested Beaches in August

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.