Cape Cod spring ? weather begins in April with low temperatures that gradually increase by 10 degrees but still remains quite chilly at 37°F (3°C). Meanwhile, the average high temperatures reflect the gorgeous spring climate at 52°F (11°C).
In May also called a shoulder month, the precipitation levels decrease compared to the last few months with about 3 inches (76 mm) of rainfall. The climate warms further, increasing to 62°F (17°C) for the average high temperature and 48°F (9°C) for the average low temperature.
June sees the start of summer with big temperature increases ? for both average high and average low temperatures, which range between 72°F (22°C) and 56°F (13°C). Ocean water begin to warm as well.
Average summer Water temps in Dennisport MA |
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Max: 21.1°C / 70°F Avg: 19.7°C / 67.5°F Min: 18.3°C / 64.9°F |
Average climate in Dennis Port, MA
Based on data reported by over 4,000 weather stations
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In July, the hottest and driest month of the year, the average high temperature shoots up to 79°F (26°C). The rainfall measures in at 3 inches (70 mm). Meanwhile, the average low temperature is 63°F (17°C). Although the hottest month, cool ocean breezes coming off Nantucket Sound make evenings very enjoyable.
Cape Cod Weather in August: Summer continues in August, however, the climate does cool slightly. High temperature decrease by a couple of degrees to 77°F (25°C) while the low temperature drops by a single degree to 62°F (17°C).
September, another shoulder month, sees quite a bit of rain with precipitation averages at 4 inches (94 mm). The average high temperature decreases significantly to 70°F (21°C) while the average low temperature sinks to 55°F (13°C).
In October, the downward trend in temperatures persist as fall goes into full swing at Cape Cod. The high temperatures decrease by 10 degrees to 60°F (16°C) while the average low temperature decreases by the same amount to 45°F (7°C).
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