June weather forecast
Ratnapura, Sri Lanka

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Weather in June

June brings about a gradual transition in the weather outlook of Ratnapura. It ushers in slightly cooler temperatures, gustier winds, and marginally less rainfall compared to May. Visible sunlight recedes further with only a paltry average of 0.6 days intruding through the clouds. The general outlook for Ratnapura in June remains humid with an 88% average relative humidity.

Temperature

June and July bring Ratnapura's lowest average temperatures, reaching a high of 27.3°C (81.1°F).

Heat index

The heat index in June is evaluated at a tropical 31°C (87.8°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

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

Rainfall

In Ratnapura, Sri Lanka, during June, the rain falls for 28.1 days and regularly aggregates up to 173mm (6.81") of precipitation. Throughout the year, in Ratnapura, there are 317.3 rainfall days, and 2422mm (95.35") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, June has the longest days of the year in Ratnapura.
On the first day of June in Ratnapura, sunrise is at 05:51 and sunset at 18:21. On the last day of the month, sunrise is at 05:57 and sunset at 18:27 +0530.

Sunshine

In June, the average sunshine in Ratnapura is 7.1h.

UV index

January through August, 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 vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in June transforms into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the coldest month in Ratnapura?

June and July are identified as the coldest months in Ratnapura, with an average high-temperature of 27.3°C (81.1°F).

What is the average June temperature in Ratnapura?

In Ratnapura, in June, the average high-temperature is 27.3°C (81.1°F), and the average low-temperature is 21.8°C (71.2°F). In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 31°C (87.8°F).

What is the most humid month in Ratnapura?

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

What is the average humidity in June in Ratnapura?

In Ratnapura, the average relative humidity in June is 88%.

How many days does it rain in June in Ratnapura?

In June, in Ratnapura, Sri Lanka, the rain falls for 28.1 days. Throughout June, 173mm (6.81") of precipitation is accumulated.

When are the longest days in Ratnapura?

With an average of 12h and 30min of daylight, June has the longest days of the year.

How many hours of daylight does Ratnapura have in June?

The average day length in June is 12h and 31min.

When are sunrise and sunset in June in Ratnapura?

In June, on the first day of the month, sunrise is at 05:51 and sunset at 18:21. On the last day of the month, in Ratnapura, sunrise is at 05:57 and sunset at 18:27 +0530.

How long on average sun shines in June in Ratnapura?

In Ratnapura, Sri Lanka, the average sunshine duration in June is 7.1h.

What is the month with the highest UV index in Ratnapura?

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

How high is the UV index in June in Ratnapura?

The average daily maximum UV index in June in Ratnapura is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Ratnapura, Sri Lanka

Average temperature in June - Ratnapura, Sri Lanka
  • Average high temperature in June: 27.3°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 June: 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).

Average pressure in June
Ratnapura, Sri Lanka

Average pressure in June - Ratnapura, Sri Lanka
  • Average pressure in June: 1008.7mbar

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 June
Ratnapura, Sri Lanka

Average wind speed in June - Ratnapura, Sri Lanka
  • Average wind speed in June: 8.7km/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).

Average humidity in June
Ratnapura, Sri Lanka

Average humidity in June - Ratnapura, Sri Lanka
  • Average humidity in June: 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%).

Average rainfall in June
Ratnapura, Sri Lanka

Average rainfall in June - Ratnapura, Sri Lanka
  • Average rainfall in June: 173mm

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

Average rainfall days in June
Ratnapura, Sri Lanka

Average rainfall days in June - Ratnapura, Sri Lanka
  • Average rainfall days in June: 28.1 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).

Average daylight in June /
Average sunshine in June
Ratnapura, Sri Lanka

Average daylight in June / Average sunshine in June - Ratnapura, Sri Lanka
  • Average daylight in June: 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 June: 7h and 1min

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).

Average sunshine days in June
Ratnapura, Sri Lanka

Average sunshine days in June - Ratnapura, Sri Lanka
  • Average sunshine days in June: 0.6 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).

Average UV index in June
Ratnapura, Sri Lanka

Average UV index in June - Ratnapura, Sri Lanka
  • Average UV index in June: 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).

Average cloud cover in June
Ratnapura, Sri Lanka

Average cloud cover in June - Ratnapura, Sri Lanka
  • Average cloud cover in June: 65

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

Average visibility in June
Ratnapura, Sri Lanka

Average visibility in June - Ratnapura, Sri Lanka
  • Average visibility in June: 8km

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).

Ratnapura, Sri Lanka

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