May weather forecastGalapitamada, Sri Lanka

Weather in May

The last month of the spring, May, is another hot month in Galapitamada, Sri Lanka, with an average temperature varying between 26.4°C (79.5°F) and 30.8°C (87.4°F).

Temperature

In May, Galapitamada experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 32°C (89.6°F) in April to a still hot 30.8°C (87.4°F). Galapitamada registers a gentle descent to an average nighttime low of 26.4°C (79.5°F) in May from its daytime highs.

Heat index

During May, the heat index is appraised at an extremely hot 40°C (104°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Understand that the heat index values take into account shaded locations and mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Galapitamada, Sri Lanka, the average relative humidity in May is 80%.

Rainfall

In May, in Galapitamada, Sri Lanka, the rain falls for 26.3 days. Throughout May, 204mm (8.03") of precipitation is accumulated. In Galapitamada, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Daylight

In Galapitamada, the average length of the day in May is 12h and 27min.
On the first day of May, sunrise is at 05:54 and sunset at 18:17. On the last day of the month, sunrise is at 05:51 and sunset at 18:22 +0530.

Sunshine

In Galapitamada, the average sunshine in May is 8.8h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Galapitamada. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during May leads to these instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.