Hagåtña
Guam, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Hagåtña, GU

The first month of the summer, June, is also a moderately hot month in Hagåtña, Guam, with average temperature varying between 83.3°F (28.5°C) and 84.6°F (29.2°C).

Temperature

In June, the average high-temperature is practically the same as in May - a still warm 84.6°F (29.2°C). In Hagåtña, the average low-temperature is 83.3°F (28.5°C).

Heat index

In June, the average heat index is evaluated at a hot 94.3°F (34.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like differences in body mass, height, and shape, wind, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In June, the average relative humidity in Hagåtña is 77%.

Rainfall

In Hagåtña, in June, during 25.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In Hagåtña, the average seawater temperature in June is 84.7°F (29.3°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

With an average of 12.9h of daylight, June has the longest days of the year.

Sunshine

June has the most sunshine of the year in Hagåtña, with an average of 10.6h of sunshine.

UV index

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in June transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in June in Hagåtña?

In June, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 83.3°F (28.5°C). In June, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, is estimated at 94.3°F (34.6°C).

What is the average humidity in June in Hagåtña?

In Hagåtña, the average relative humidity in June is 77%.

How many days does it rain in June in Hagåtña?

In Hagåtña, in June, during 25.4 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

What is the ocean temperature in June in Hagåtña?

In Hagåtña, Guam, the average seawater temperature in June is 84.7°F (29.3°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

When are the longest days in Hagåtña?

With an average of 12.9h of daylight, June has the longest days of the year.

How many hours of daylight does Hagåtña have in June?

In June, the average length of the day in Hagåtña, Guam, is 12.9h.

What month has the most sunshine in Hagåtña?

With an average of 10.6h of sunshine, June has the most sunshine of the year in Hagåtña, Guam.

How many hours of sunshine does Hagåtña have in June?

In June, the average sunshine in Hagåtña is 10.6h.

When is the highest UV index in Hagåtña?

Months with the highest UV index in Hagåtña are January through August, October through December, with an average maximum UV index of 7.

What is the UV index reading in June in Hagåtña?

In June, the average daily maximum UV index in Hagåtña is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in June - Hagåtña, GU
  • Average high temperature in June: 29.2°C

Warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is February (27.6°C).

  • Average low temperature in June: 28.5°C

The month with the highest average low temperature is June (28.5°C).
The coldest month (with the lowest average low temperature) is February (26.5°C).

Average humidity in June - Hagåtña, GU
  • Average humidity in June: 77%

Months with the highest relative humidity are January, March, April, May, October, November and December (78%).
The month with the lowest relative humidity is August (76%).

Average rainfall in June - Hagåtña, GU
  • Average rainfall in June: 94mm

The wettest month (with the highest rainfall) is September (261mm).
The driest month (with the lowest rainfall) is March (46mm).

Average rainfall days in June - Hagåtña, GU
  • Average rainfall days in June: 25.4 days

Months with the highest number of rainy days are July and August (28.9 days).
The month with the lowest number of rainy days is February (17.5 days).

Average sea temperature in June - Hagåtña, GU
  • Average sea temperature in June: 29.3°C

The best month for swimming (with the highest average sea temperature) is August (29.7°C).
The coldest month (with the lowest average sea temperature) is February (27.8°C).

Average daylight in June / Average sunshine in June - Hagåtña, GU
  • Average daylight in June: 12.9h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in June: 10.6h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is November (Average sunshine: 6.3h).

Average UV index in June - Hagåtña, GU
  • Average UV index in June: 7

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