May weather forecast
Kohilawatta, Sri Lanka

May

Weather in May

May, the last month of the spring in Kohilawatta, is another hot month, with an average temperature ranging between max 30.6°C (87.1°F) and min 26.3°C (79.3°F).

Temperature

As May takes its course, Kohilawatta's average high-temperature registers at a still hot 30.6°C (87.1°F), closely aligning with the preceding month. Kohilawatta notes an average temperature descent to a moderately hot 26.3°C (79.3°F) in May, a small shift from its daytime peak.

Heat index

In May, the heat index is appraised at a blistering 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Kohilawatta, during May, the rain falls for 28.8 days and regularly aggregates up to 306mm (12.05") of precipitation. In Kohilawatta, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

In May, the average length of the day in Kohilawatta is 12h and 26min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, in Kohilawatta, Sri Lanka, sunrise is at 05:53 and sunset at 18:23 +0530.

Sunshine

In May, the average sunshine in Kohilawatta is 8.6h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Kohilawatta. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in May transforms into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

Is it hot in Kohilawatta during May?
The high-temperature, in May, in Kohilawatta, is 30.6°C (87.1°F), while the low-temperature averages to 26.3°C (79.3°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in May is appraised at 40°C (104°F).
What is the average humidity in May in Kohilawatta?
In Kohilawatta, Sri Lanka, the average relative humidity in May is 81%.
How much does it rain in Kohilawatta in May?
In Kohilawatta, in May, it is raining for 28.8 days, with typically 306mm (12.05") of accumulated precipitation.
How many hours of daylight does Kohilawatta have in May?
The average day length in May in Kohilawatta is 12h and 26min.
When is the sunrise / sunset in May in Kohilawatta?
In May, on the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, in Kohilawatta, Sri Lanka, sunrise is at 05:53 and sunset at 18:23 +0530.
How many hours of sunshine does Kohilawatta have in May?
In May, the average sunshine duration in Kohilawatta is 8.6h.
When is the lowest UV index in Kohilawatta?
May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index.
What is the UV index intensity in May in Kohilawatta?
In May, the average daily maximum UV index in Kohilawatta is 6. A UV Index value of 6 to 7 symbolizes 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 - Kohilawatta, Sri Lanka
Average temperature in May
Kohilawatta, Sri Lanka
  • Average high temperature in May: 30.6°C

The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).

  • Average low temperature in May: 26.3°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).

Average pressure in May - Kohilawatta, Sri Lanka
Average pressure in May
Kohilawatta, Sri Lanka
  • Average pressure in May: 1008.6mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in May - Kohilawatta, Sri Lanka
Average wind speed in May
Kohilawatta, Sri Lanka
  • Average wind speed in May: 12.9km/h

The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in May - Kohilawatta, Sri Lanka
Average humidity in May
Kohilawatta, Sri Lanka
  • Average humidity in May: 81%

The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).

Average rainfall in May - Kohilawatta, Sri Lanka
Average rainfall in May
Kohilawatta, Sri Lanka
  • Average rainfall in May: 306mm

The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in May - Kohilawatta, Sri Lanka
Average rainfall days in May
Kohilawatta, Sri Lanka
  • Average rainfall days in May: 28.8 days

The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).

Average daylight in May / Average sunshine in May - Kohilawatta, Sri Lanka
Average daylight in May /
Average sunshine in May
Kohilawatta, Sri Lanka
  • Average daylight in May: 12h and 2min

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: 8h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in May - Kohilawatta, Sri Lanka
Average sunshine days in May
Kohilawatta, Sri Lanka
  • Average sunshine days in May: 1.3 days

The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).

Average UV index in May - Kohilawatta, Sri Lanka
Average UV index in May
Kohilawatta, Sri Lanka
  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in May - Kohilawatta, Sri Lanka
Average cloud cover in May
Kohilawatta, Sri Lanka
  • Average cloud cover in May: 54

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in May - Kohilawatta, Sri Lanka
Average visibility in May
Kohilawatta, Sri Lanka
  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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