May weather forecast
Bamunumulla, Sri Lanka

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Weather in May

The last month of the spring, May, is another hot month in Bamunumulla, Sri Lanka, with an average temperature varying between 30.2°C (86.4°F) and 26.3°C (79.3°F).

Temperature

With the onset of May, the average high-temperature registers at a still tropical 30.2°C (86.4°F), subtly different from April's 31.3°C (88.3°F). Bamunumulla sees a minor drop to an average minimum temperature of 26.3°C (79.3°F) during the night in the month of May.

Heat index

May's heat index is estimated at a very hot 39°C (102.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in May in Bamunumulla is 81%.

Rainfall

In Bamunumulla, in May, during 28 rainfall days, 303mm (11.93") of precipitation is typically accumulated. Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.

Daylight

In May, the average length of the day in Bamunumulla 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, sunrise is at 05:53 and sunset at 18:22 +0530.

Sunshine

In Bamunumulla, Sri Lanka, the average sunshine in May is 8.7h.

UV index

May, June and August, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

How hot does it get in Bamunumulla in May?

Bamunumulla in May has an average high-temperature of 30.2°C (86.4°F) and an average low-temperature of 26.3°C (79.3°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in May is estimated at 39°C (102.2°F).

What is the average humidity in May in Bamunumulla?

In May, the average relative humidity is 81%.

How much does it rain in Bamunumulla in May?

In Bamunumulla, in May, it is raining for 28 days, with typically 303mm (11.93") of accumulated precipitation.

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

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

What time are sunrise and sunset in May in Bamunumulla?

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 Bamunumulla, Sri Lanka, sunrise is at 05:53 and sunset at 18:22 +0530.

How many hours of sunshine does Bamunumulla have in May?

In May, the average sunshine duration in Bamunumulla, Sri Lanka, is 8.7h.

What are the months with the lowest UV index in Bamunumulla?

The months with the lowest UV index are May, June and August, with an average maximum UV index of 6.

What is the UV index reading in May in Bamunumulla?

In May, the average daily maximum UV index in Bamunumulla, Sri Lanka, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in May
Bamunumulla, Sri Lanka

Average temperature in May - Bamunumulla, Sri Lanka
  • Average high temperature in May: 30.2°C

The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°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 (23.4°C).

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Average pressure in May
Bamunumulla, Sri Lanka

Average pressure in May - Bamunumulla, Sri Lanka
  • Average pressure in May: 1008.7mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).

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Average wind speed in May
Bamunumulla, Sri Lanka

Average wind speed in May - Bamunumulla, Sri Lanka
  • Average wind speed in May: 13.3km/h

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).

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Average humidity in May
Bamunumulla, Sri Lanka

Average humidity in May - Bamunumulla, 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 (75%).

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Average rainfall in May
Bamunumulla, Sri Lanka

Average rainfall in May - Bamunumulla, Sri Lanka
  • Average rainfall in May: 303mm

The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).

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Average rainfall days in May
Bamunumulla, Sri Lanka

Average rainfall days in May - Bamunumulla, Sri Lanka
  • Average rainfall days in May: 28 days

The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).

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

Average daylight in May / Average sunshine in May - Bamunumulla, 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 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).

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Average sunshine days in May
Bamunumulla, Sri Lanka

Average sunshine days in May - Bamunumulla, Sri Lanka
  • Average sunshine days in May: 1.2 days

The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).

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Average UV index in May
Bamunumulla, Sri Lanka

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

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

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Average cloud cover in May
Bamunumulla, Sri Lanka

Average cloud cover in May - Bamunumulla, Sri Lanka
  • Average cloud cover in May: 52

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).

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Average visibility in May
Bamunumulla, Sri Lanka

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

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

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Bamunumulla, Sri Lanka

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