June weather forecast
Merizo, GU

June provides an inviting prelude to the tropical summer of Merizo, Guam. Marking the middle of the year, this month offers showers dispersed across a large number of days, indicative of the rainy season. June witnesses a marginal rise in temperature, with an average high of 84.6°F (29.2°C), indicating the peak of summer. Furthermore, it is characterized by strong winds and high sea temperatures. Outdoor activities remain viable during this time, despite the intermittent showers.

Temperature

June welcomes an average high-temperature of a still moderately hot 84.6°F (29.2°C), not much different from the preceding month. Merizo encounters an average temperature dip to a still moderately hot 83.3°F (28.5°C) throughout June, subtly lower than its daytime maximum.

Heat index

During June, the heat index is evaluated at a sweltering 95°F (35°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in June is 77%.

Rainfall

In June, the rain falls for 25.4 days. Throughout June, 3.7" (94mm) of precipitation is accumulated. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In Merizo, the average seawater temperature in June is 84.7°F (29.3°C).
Note: For activities in the water such as swimming or diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are considered optimal for prolonged enjoyment without discomfort.

Daylight

The month with the longest days in Merizo is June, with an average of 12h and 54min of daylight.
On the first day of June, sunrise is at 5:53 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:51 pm ChST.

Sunshine

June has the most sunshine of the year in Merizo, 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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 7 in June leads to these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.