July weather forecastMerizo, GU
July
Weather in July
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
Merizo's highest average temperatures are recorded in July and August, reaching a high of 84.7°F (29.3°C).Heat index
Throughout July, the heat index is evaluated at a sweltering 95°F (35°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Merizo, the average relative humidity in July is 77%.Rainfall
In Merizo, in July, it is raining for 28.9 days, with typically 7.52" (191mm) of accumulated 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 Merizo, in July, the average water temperature is 85.1°F (29.5°C).Note: For any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are deemed excellent and extremely satisfying for enduring periods.
Daylight
In July, the average length of the day 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
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 of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 7 in July, converts into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Merizo, GU
- Average high temperature in July: 84.7°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 July: 82.9°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).
Average pressure in July
Merizo, GU
- Average pressure in July: 29.8"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).
Average wind speed in July
Merizo, GU
- Average wind speed in July: 10.3mph
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).
Average humidity in July
Merizo, GU
- Average humidity in July: 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%).
Average rainfall in July
Merizo, GU
- Average rainfall in July: 7.52"
The wettest month (with the highest rainfall) is September (10.28").
The driest month (with the least rainfall) is March (1.81").
Average rainfall days in July
Merizo, GU
- Average rainfall days in July: 28.9 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).
Average sea temperature in July
Merizo, GU
- Average sea temperature in July: 85°F
The best month for swimming (with the highest average sea temperature) is August (85.4°F).
The coldest month (with the lowest average sea temperature) is February (82°F).
Average daylight in July /
Average sunshine in July
Merizo, GU
- Average daylight in July: 12h and 48min
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 24min).
- Average sunshine in July: 8h and 36min
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).
Average sunshine days in July
Merizo, GU
- Average sunshine days in July: 1.4 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).
Average UV index in July
Merizo, GU
- Average UV index in July: 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).
Average cloud cover in July
Merizo, GU
- Average cloud cover in July: 44
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).
Average visibility in July
Merizo, GU
- Average visibility in July: 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).





