May is a hot and dry time for sunbathing in Sri Lanka. May is an excellent month for swimming in Sri Lanka with very warm sea temperatures. Consider visiting Sri Lanka in the months of February, March, April, July, for the best beach weather. Also consider one of our other suggestions for May.
The average maximum temperature in Sri Lanka in May is 33°. The average maximum temperature is 33° in the previous month and 33° in the next month.
The average temperature in Sri Lanka in May is 29°. The average temperature ranges is 29° in the previous month and 30° in the next month.
The average minimum temperature in Sri Lanka in May is 26°. The minimum temperature is 25° in the previous month and 27° in the next month.
The average day light hours per day in Sri Lanka in May are 12.4 and there are 8.5 hours of sunshine per day on average during May making it a sunny month with few clouds.
The ultraviolet index in Sri Lanka in May is typically 13.4 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 Sri Lanka in May is 29.3° which is very warm and ideal for relaxing and swimming for the whole day.
The average total rainfall in Sri Lanka in May is 2.5cm and on average there are 9.2 rainy days in May making it a dry time to visit the beach.
The maximum dew point (an indicator of humidity) in Sri Lanka in May is 25° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 25° in the previous month and 24° in the next month.
The average maximum relative humidity in Sri Lanka in May is typically 87.8%. The maximum relative humidity is 90.3% in the previous month and 82% in the next month.
The average relative humidity in Sri Lanka in May is typically 74.5%. The average relative humidity is 75.9% in the previous month and 69.4% in the next month.
The average maximum wind speed in Sri Lanka in May is typically 20kmh. The average maximum wind speed is 14kmh in the previous month and 24kmh in the next month.
The average wind speed in Sri Lanka in May is typically 12kmh. The average wind speed is 7kmh in the previous month and 15kmh in the next month.
The average wind direction in Sri Lanka in May is from the West.
