July weather forecast
Hagåtña, GU

July signifies the height of summer, a season typically associated with scorching heatwaves. Yet, the tropical paradise of Hagåtña remains impervious to this trend. Showers become abundant with a recorded high rainfall of 7.52" (191mm) spanning over 28.9 days, amounting to one of the wettest months of the year. The city pulsates with a certain liveliness and charm, inviting you to lose yourself amidst the enchanting sceneries and heartwarming festivities.

Temperature

July and August are identified as the warmest months, with an average high-temperature of 84.7°F (29.3°C).

Heat index

July's mean heat index is appraised at a torrid 95°F (35°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in July is 77%.

Rainfall

In Hagåtña, in July, it is raining for 28.9 days, with typically 7.52" (191mm) of accumulated precipitation. In Hagåtña, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.

Ocean temperature

In Hagåtña, in July, the average water temperature is 85.1°F (29.5°C).
Note: In water activities such as swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed highly pleasurable for extended periods without any unease.

Daylight

The average length of the day in July is 12h and 50min.
On the first day of July, sunrise is at 5:57 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:49 pm ChST.

Sunshine

In Hagåtña, the average sunshine in July is 8.6h.

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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in July translates into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.