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 |
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
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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