May weather forecast
Hikkaduwa, Sri Lanka

May shifts the weather narrative with the highest precipitation level in the year, reaching a lofty 302mm (11.89"). As the monsoon grips Hikkaduwa, the city witnesses an increased cloud cover that cushions the heat. Notwithstanding the rains, the sea remains impressively warm, reflecting the island's tropical identity. The days may be shorter, yet the sun's glow can still be enjoyed. Despite the inclement weather, the natural scenery appears even more intense, painting a unique tableau of Hikkaduwa.

Temperature

Hikkaduwa experiences a recorded average high-temperature of a moderately hot 29.5°C (85.1°F) in May, closely aligned with April's 30.3°C (86.5°F). May nighttime temperatures hover close to the daytime peak with an average of 26.7°C (80.1°F).

Heat index

For May, the heat index is evaluated at a torrid 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Hikkaduwa, the average relative humidity in May is 81%.

Rainfall

The month with the most rainfall is May, when the rain falls for 27.7 days and typically aggregates up to 302mm (11.89") of precipitation.

Sea temperature

In Hikkaduwa, the average seawater temperature in May is 29.1°C (84.4°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In Hikkaduwa, the average length of the day in May is 12h and 24min.
On the first day of May in Hikkaduwa, sunrise is at 05:56 and sunset at 18:16. On the last day of the month, sunrise is at 05:53 and sunset at 18:20 +0530.

Sunshine

The average sunshine in May in Hikkaduwa is 9h.

UV index

May and September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 6 suggests this advice:
Take precautions against overexposure. Protection against sun damage is needed. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Caution! Sand and water reflections can notably increase the UV radiation intensity.