June weather forecast
Dededo, GU

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Weather in June

In June, a distinctive wet season begins for Dededo, Guam. A slight temperature increase to 84.6°F (29.2°C) coincides with a notable increase in rainfall to 3.7" (94mm). Despite increased moisture level, daylight hours reach their peak, providing ample opportunities for outdoor activities. The harmonious coexistence of rainfall with sunshine manifests in vibrant rainbows, enchanting every passerby with their splendor. As the island is treated with warm showers, navigating through the lush tropical plantation becomes a refreshing experience.

Temperature

The onset of June manifests an average high-temperature of a still moderately hot 84.6°F (29.2°C), demonstrating a minor variation from the preceding month. Dededo maintains an average of approximately a still warm 83.3°F (28.5°C) during June nights, with only a minimal decrease from the daytime temperature.

Heat index

During June, the heat index is evaluated at a sweltering 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Always consider that heat index estimations are for light winds and places in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

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

Rainfall

In Dededo, Guam, in June, it is raining for 25.4 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Daylight

With an average of 12h and 54min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:52 am and sunset at 6:44 pm. On the last day of June, sunrise is at 5:56 am and sunset at 6:51 pm ChST.

Sunshine

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

UV index

The months with the highest UV index in Dededo are January through August, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In June, a regular UV index of 7 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

How hot is it in Dededo in June?

An average high-temperature, in June, in Dededo, is 84.6°F (29.2°C) and the average low-temperature is 83.3°F (28.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in June is evaluated at 95°F (35°C).

What is the average humidity in June in Dededo?

In June, the average relative humidity is 77%.

How much does it rain in Dededo in June?

In Dededo, Guam, during June, the rain falls for 25.4 days and regularly aggregates up to 3.7" (94mm) of precipitation.

When are the longest days in Dededo?

June has the longest days of the year in Dededo, with an average of 12h and 54min of daylight.

How many hours of daylight does Dededo have in June?

The average day length in June is 12h and 55min.

What time are sunrise and sunset in June in Dededo?

In June, on the first day of the month, sunrise is at 5:52 am and sunset at 6:44 pm. On the last day of the month, in Dededo, sunrise is at 5:56 am and sunset at 6:51 pm ChST.

What month has the most sunshine in Dededo?

The month with the most sunshine in Dededo is June, with an average of 10.6h of sunshine.

How long on average sun shines in June in Dededo?

The average sunshine duration in June in Dededo is 10.6h.

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

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

What is the UV index intensity in June in Dededo?

The average daily maximum UV index in June in Dededo, Guam, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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 June
Dededo, GU

Average temperature in June - Dededo, GU
  • Average high temperature in June: 84.6°F

The warmest months (with the highest average high temperature) are July and August (84.7°F).
The month with the lowest average high temperature is February (81.7°F).

  • Average low temperature in June: 83.3°F

The month with the highest average low temperature is June (83.3°F).
The coldest month (with the lowest average low temperature) is February (79.7°F).

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Average pressure in June
Dededo, GU

Average pressure in June - Dededo, GU
  • Average pressure in June: 29.84"Hg

The month with the highest atmospheric pressure is February (29.88"Hg).
The months with the lowest atmospheric pressure are August, September and October (29.79"Hg).

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Average wind speed in June
Dededo, GU

Average wind speed in June - Dededo, GU
  • Average wind speed in June: 11.6mph

The windiest month (with the highest average wind speed) is February (16.3mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

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Average humidity in June
Dededo, GU

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

The 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%).

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Average rainfall in June
Dededo, GU

Average rainfall in June - Dededo, GU
  • Average rainfall in June: 3.7"

The wettest month (with the highest rainfall) is September (10.28").
The driest month (with the least rainfall) is March (1.81").

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Average rainfall days in June
Dededo, GU

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

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

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Average daylight in June /
Average sunshine in June
Dededo, GU

Average daylight in June / Average sunshine in June - Dededo, GU
  • Average daylight in June: 12h and 5min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).

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Average sunshine days in June
Dededo, GU

Average sunshine days in June - Dededo, GU
  • Average sunshine days in June: 2.1 days

The month with the most sunshine days is March (6.6 days).
The month with the least sunshine days is September (1.1 days).

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Average UV index in June
Dededo, GU

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

The 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).

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Average cloud cover in June
Dededo, GU

Average cloud cover in June - Dededo, GU
  • Average cloud cover in June: 39

The months with the most cloud cover are January, August and October (Cloud cover 46).
The months with the least cloud cover are May and June (Cloud cover 39).

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Average visibility in June
Dededo, GU

Average visibility in June - Dededo, GU
  • Average visibility in June: 6mi

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

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Dededo, Guam, USA

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