May weather forecast
Deraniyagala, Sri Lanka

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Weather in May

May, the last month of the spring in Deraniyagala, is another warm month, with an average temperature varying between 28.3°C (82.9°F) and 21.8°C (71.2°F).

Temperature

The beginning of May records an average high-temperature of a warm 28.3°C (82.9°F), marking a negligible difference from April's 30°C (86°F). Deraniyagala records a mean low-temperature of 21.8°C (71.2°F) in May.

Heat index

The average heat index in May is evaluated at a hot 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

The months with the highest humidity are May and June, with an average relative humidity of 88%.

Rainfall

In Deraniyagala, in May, it is raining for 29.8 days, with typically 270mm (10.63") of accumulated precipitation. Throughout the year, in Deraniyagala, Sri Lanka, there are 317.3 rainfall days, and 2422mm (95.35") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 26min.
On the first day of May, sunrise is at 05:54 and sunset at 18:16. On the last day of the month, sunrise is at 05:51 and sunset at 18:21 +0530.

Sunshine

In May, the average sunshine in Deraniyagala is 7.6h.

UV index

The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot does it get in Deraniyagala in May?

During May, Deraniyagala experiences an average high-temperature of 28.3°C (82.9°F) and a low-temperature of 21.8°C (71.2°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in May is evaluated at 34°C (93.2°F).

What are the most humid months in Deraniyagala?

May and June, with an average relative humidity of 88%, are most humid months.

What is the average humidity in May in Deraniyagala?

In Deraniyagala, Sri Lanka, the average relative humidity in May is 88%.

How much does it rain in Deraniyagala in May?

In Deraniyagala, during May, the rain falls for 29.8 days and regularly aggregates up to 270mm (10.63") of precipitation.

What is the average length of the day in May in Deraniyagala?

In Deraniyagala, Sri Lanka, the average day length in May is 12h and 26min.

When are sunrise and sunset in May in Deraniyagala?

In May, on the first day of the month, sunrise is at 05:54 and sunset at 18:16. On the last day of the month, sunrise is at 05:51 and sunset at 18:21 +0530.

How long on average sun shines in May in Deraniyagala?

In May, the average sunshine duration is 7.6h.

When is the highest UV index in Deraniyagala?

The months with the highest UV index are January through August, November and December, with an average maximum UV index of 6.

How high is the UV index in May in Deraniyagala?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Deraniyagala, Sri Lanka

Average temperature in May - Deraniyagala, Sri Lanka
  • Average high temperature in May: 28.3°C

The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°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 (18.7°C).

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Average pressure in May
Deraniyagala, Sri Lanka

Average pressure in May - Deraniyagala, 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).

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Average wind speed in May
Deraniyagala, Sri Lanka

Average wind speed in May - Deraniyagala, Sri Lanka
  • Average wind speed in May: 6.5km/h

The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).

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Average humidity in May
Deraniyagala, Sri Lanka

Average humidity in May - Deraniyagala, Sri Lanka
  • Average humidity in May: 88%

The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).

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Average rainfall in May
Deraniyagala, Sri Lanka

Average rainfall in May - Deraniyagala, Sri Lanka
  • Average rainfall in May: 270mm

The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).

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Average rainfall days in May
Deraniyagala, Sri Lanka

Average rainfall days in May - Deraniyagala, Sri Lanka
  • Average rainfall days in May: 29.8 days

The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).

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Average daylight in May /
Average sunshine in May
Deraniyagala, Sri Lanka

Average daylight in May / Average sunshine in May - Deraniyagala, 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: 7h and 4min

The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in May
Deraniyagala, Sri Lanka

Average sunshine days in May - Deraniyagala, Sri Lanka
  • Average sunshine days in May: 0.8 days

The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).

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Average UV index in May
Deraniyagala, Sri Lanka

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

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

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Average cloud cover in May
Deraniyagala, Sri Lanka

Average cloud cover in May - Deraniyagala, Sri Lanka
  • Average cloud cover in May: 61

The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).

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Average visibility in May
Deraniyagala, Sri Lanka

Average visibility in May - Deraniyagala, Sri Lanka
  • Average visibility in May: 7km

The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).

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Deraniyagala, Sri Lanka

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