May weather forecast
Yalegoda, Sri Lanka

May

Weather in May

The last month of the spring, May, is also a hot month in Yalegoda, Sri Lanka, with an average temperature ranging between min 21.8°C (71.2°F) and max 30.1°C (86.2°F).

Temperature

Yalegoda notes an average high-temperature of a still tropical 30.1°C (86.2°F) in May, displaying minor variation from April. Yalegoda, during May nights, observes an average temperature of 21.8°C (71.2°F).

Heat index

In May, the average heat index is estimated at a fiery hot 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In May, in Yalegoda, Sri Lanka, the rain falls for 28.6 days. Throughout May, 163mm (6.42") of precipitation is accumulated. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In Yalegoda, the average length of the day in May is 12h and 27min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:16. On the last day of May, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

The average sunshine in May is 10.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

How hot is May?
Yalegoda in May has an average high-temperature of 30.1°C (86.2°F) and an average low-temperature of 21.8°C (71.2°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in May is estimated at 38°C (100.4°F).
What is the average humidity in May?
The average relative humidity in May in Yalegoda is 80%.
How many days does it rain in May?
In Yalegoda, Sri Lanka, in May, it is raining for 28.6 days, with typically 163mm (6.42") of accumulated precipitation.
How many hours of daylight does Yalegoda have in May?
The average day length in May is 12h and 27min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 05:53 and sunset at 18:16. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.
How long on average sun shines in May?
In May, the average sunshine duration is 10.4h.
What are the months with the highest UV index?
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index reading in May?
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Yalegoda, Sri Lanka
  • Average high temperature in May: 30.1°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in May: 21.8°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in May
Yalegoda, Sri Lanka
  • Average pressure in May: 1008.2mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in May
Yalegoda, Sri Lanka
  • Average wind speed in May: 9.3km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in May
Yalegoda, Sri Lanka
  • Average humidity in May: 80%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in May
Yalegoda, Sri Lanka
  • Average rainfall in May: 163mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in May
Yalegoda, Sri Lanka
  • Average rainfall days in May: 28.6 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in May /
Average sunshine in May
Yalegoda, Sri Lanka
  • Average daylight in May: 12h and 3min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Yalegoda, Sri Lanka
  • Average sunshine days in May: 1.2 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in May
Yalegoda, Sri Lanka
  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in May
Yalegoda, Sri Lanka
  • Average cloud cover in May: 35

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in May
Yalegoda, Sri Lanka
  • Average visibility in May: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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