July weather forecast
Merizo, GU

July records the year's highest rainfall level, attaining a significant 7.52" (191mm), indicating a shift to a wetter season. Despite the surge in rainfall, the summer temperature is maintained, reinforcing the tropical climate conditions. The recurring pattern highlights the consistency of the maritime weather affecting Merizo. Additionally, the sea temperature escalates, making it perfect for a wide array of water-based activities. The blend of rain and sunshine characterizes the typical tropical weather of Merizo in July.

Temperature

During July and August, Merizo experiences its highest average temperatures, peaking at 84.7°F (29.3°C).

Heat index

The heat index value for July is evaluated at a very hot 95°F (35°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Merizo, the average relative humidity in July is 77%.

Rainfall

In Merizo, Guam, during July, the rain falls for 28.9 days and regularly aggregates up to 7.52" (191mm) of precipitation. In Merizo, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.

Ocean temperature

In July, the average ocean temperature in Merizo, Guam, is 85.1°F (29.5°C).
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

The average length of the day in July in Merizo is 12h and 49min.
On the first day of the month, sunrise is at 5:58 am and sunset at 6:52 pm. On the last day of July, sunrise is at 6:06 am and sunset at 6:49 pm ChST.

Sunshine

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

UV index

The months with the highest UV index in Merizo 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 threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In July, a daily maximum UV index of 7 leads to the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Stay cautious! Sand and water reflections increase UV radiation potency.