May is a beautiful time to visit Cape Cod Beach, with warmer temperatures and blooming flowers. While the water may still be too cold for swimming, sunbathing and beach activities like beach volleyball or frisbee are enjoyable. Water sports like windsurfing and kitesurfing may be possible, but wetsuits are recommended. Also consider one of our other suggestions for May.
May marks the beginning of the warmer months in Cape Cod, with temperatures ranging from 46°F (8°C) to 63°F (17°C). The beach starts to see more visitors, especially during the Memorial Day weekend, which is considered the unofficial start of the summer season. However, the crowds are still relatively manageable during this month.
The average maximum temperature in Cape Cod Beach in May is 17°. The average maximum temperature is 12° in the previous month and 22° in the next month.
The average temperature in Cape Cod Beach in May is 13°. The average temperature ranges is 8° in the previous month and 18° in the next month.
The average minimum temperature in Cape Cod Beach in May is 10°. The minimum temperature is 5° in the previous month and 15° in the next month.
The average day light hours per day in Cape Cod Beach in May are 14.6 and there are 6.4 hours of sunshine per day on average during May making it a quite sunny month with some cloud cover.
The ultraviolet index in Cape Cod Beach in May is typically 8.4 during May. 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.
The average sea water temperature in Cape Cod Beach in May is 10.8° which is very cold and bracing, it's not recommended you swim with out a full wet suit.
The average total rainfall in Cape Cod Beach in May is 9.4cm and on average there are 15.5 rainy days in May making it a wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Cape Cod Beach in May is 11° which is very comfortable. The dew point is 6° in the previous month and 16° in the next month.
The average maximum relative humidity in Cape Cod Beach in May is typically 93.3%. The maximum relative humidity is 89.5% in the previous month and 94.2% in the next month.
The average relative humidity in Cape Cod Beach in May is typically 79.4%. The average relative humidity is 73.6% in the previous month and 81.4% in the next month.
The average maximum wind speed in Cape Cod Beach in May is typically 22kmh. The average maximum wind speed is 24kmh in the previous month and 20kmh in the next month.
The average wind speed in Cape Cod Beach in May is typically 11kmh. The average wind speed is 13kmh in the previous month and 10kmh in the next month.
The average wind direction in Cape Cod Beach in May is from the South-Southwest.
