June weather forecast
Umatac, GU

June in Umatac, Guam, is characterized by further ascendance in rainfall, reaching a value of 3.7" (94mm). This month witnesses a marked leap from the reduced showers of May, hinting towards a transition into the more intense period of the rainy season. However, despite this uptick in rainfall, the weather continues to delight with warm temperatures and subdued wind speeds. The heightened cloud percentage and UV index notify the importance of accommodating apt clothing and skin protection.

Temperature

The weather in Umatac during June records an average high-temperature of a still warm 84.6°F (29.2°C), closely mirroring the preceding month. A modest nighttime temperature average of 83.3°F (28.5°C) characterizes June.

Heat index

The heat index for June is estimated at a sweltering 95°F (35°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

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

Rainfall

In Umatac, 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

June has the longest days of the year, with an average of 12h and 54min of daylight.
On the first day of June, sunrise is at 5:53 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:52 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 are January through August, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in June interprets into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.