June weather forecast
Jalthara, Sri Lanka

June

Weather in June

The first month of the summer, June, is also a moderately hot month in Jalthara, Sri Lanka, with an average temperature varying between 29.3°C (84.7°F) and 25.8°C (78.4°F).

Temperature

With the advent of June, Jalthara experiences an average high-temperature of a moderately hot 29.3°C (84.7°F), mirroring a close resemblance to the previous month. In Jalthara, June's low temperatures hover around a still warm 25.8°C (78.4°F), reflecting a minor decrease from the daytime highs.

Heat index

The heat index in June is estimated at a fiery hot 36°C (96.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The months with the highest humidity are June through August, with an average relative humidity of 83%.

Rainfall

June is the month with the most rainfall. Rain falls for 29.3 days and accumulates 341mm (13.43") of precipitation.

Daylight

June has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of June, sunrise is at 05:52 and sunset at 18:22. On the last day of the month, sunrise is at 05:58 and sunset at 18:29 +0530.

Sunshine

In Jalthara, Sri Lanka, the average sunshine in June is 8h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the UV index of 6 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

How hot is June in Jalthara?
The average high-temperature and low-temperature in Jalthara during June are 29.3°C (84.7°F) and 25.8°C (78.4°F) respectively. In June, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 36°C (96.8°F).
What are the most humid months in Jalthara?
June through August, with an average relative humidity of 83%, are most humid months.
What is the average humidity in June in Jalthara?
In June, the average relative humidity in Jalthara, Sri Lanka, is 83%.
What is the rainiest month in Jalthara?
The month with the most rainfall in Jalthara is June, when the rain falls for 29.3 days and typically aggregates up to 341mm (13.43") of precipitation.
How much does it rain in Jalthara in June?
In Jalthara, during June, the rain falls for 29.3 days and regularly aggregates up to 341mm (13.43") of precipitation.
When are the longest days in Jalthara?
With an average of 12h and 30min of daylight, June has the longest days of the year.
How many hours of daylight does Jalthara have in June?
In June, the average day length in Jalthara is 12h and 31min.
When are sunrise and sunset in June in Jalthara?
In June, on the first day of the month, sunrise is at 05:52 and sunset at 18:22. On the last day of the month, sunrise is at 05:58 and sunset at 18:29 +0530.
How many hours of sunshine does Jalthara have in June?
The average sunshine duration in June in Jalthara is 8h.
What is the month with the lowest UV index in Jalthara?
May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Jalthara, Sri Lanka.
How high is the UV index in June in Jalthara?
In June, the average daily maximum UV index in Jalthara, Sri Lanka, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
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 June - Jalthara, Sri Lanka
Average temperature in June
Jalthara, Sri Lanka
  • Average high temperature in June: 29.3°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 June: 25.8°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 June - Jalthara, Sri Lanka
Average pressure in June
Jalthara, 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 - Jalthara, Sri Lanka
Average wind speed in June
Jalthara, Sri Lanka
  • Average wind speed in June: 15.1km/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 June - Jalthara, Sri Lanka
Average humidity in June
Jalthara, Sri Lanka
  • Average humidity in June: 83%

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 June - Jalthara, Sri Lanka
Average rainfall in June
Jalthara, Sri Lanka
  • Average rainfall in June: 341mm

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

Average rainfall days in June - Jalthara, Sri Lanka
Average rainfall days in June
Jalthara, Sri Lanka
  • Average rainfall days in June: 29.3 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 June / Average sunshine in June - Jalthara, Sri Lanka
Average daylight in June /
Average sunshine in June
Jalthara, 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: 8h and 0min

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 June - Jalthara, Sri Lanka
Average sunshine days in June
Jalthara, Sri Lanka
  • Average sunshine days in June: 0.3 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 June - Jalthara, Sri Lanka
Average UV index in June
Jalthara, Sri Lanka
  • Average UV index in June: 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 June - Jalthara, Sri Lanka
Average cloud cover in June
Jalthara, Sri Lanka
  • Average cloud cover in June: 57

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 June - Jalthara, Sri Lanka
Average visibility in June
Jalthara, Sri Lanka
  • Average visibility in June: 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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