Also consider one of our other suggestions for May.
The average maximum temperature in Hawaii in May is 27°. The average maximum temperature is 26° in the previous month and 28° in the next month.
The average temperature in Hawaii in May is 24°. The average temperature ranges is 23° in the previous month and 25° in the next month.
The average minimum temperature in Hawaii in May is 21°. The minimum temperature is 20° in the previous month and 22° in the next month.
The average day light hours per day in Hawaii in May are 13.2 and there are 7.1 hours of sunshine per day on average during May making it a quite sunny month with some cloud cover.
The ultraviolet index in Hawaii in May is typically 12.6 during May. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. 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 Hawaii in May is 25.9° which is warm and pleasant for relaxing and swimming for long periods.
The average total rainfall in Hawaii in May is 10.7cm and on average there are 14.7 rainy days in May making it a slightly wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Hawaii in May is 20° which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 19° in the previous month and 20° in the next month.
The average maximum relative humidity in Hawaii in May is typically 85.9%. The maximum relative humidity is 85.7% in the previous month and 84.3% in the next month.
The average relative humidity in Hawaii in May is typically 72.5%. The average relative humidity is 72.7% in the previous month and 71.1% in the next month.
The average maximum wind speed in Hawaii in May is typically 26kmh. The average maximum wind speed is 28kmh in the previous month and 29kmh in the next month.
The average wind speed in Hawaii in May is typically 14kmh. The average wind speed is 15kmh in the previous month and 16kmh in the next month.
The average wind direction in Hawaii in May is from the East-Northeast.
