July weather forecastInarajan, GU
July
Weather in July
July continues the trend of the rainy season, with Inarajan, Guam experiencing the highest rainfall of the year at 7.52" (191mm). Despite being the wettest month, July does not compromise the warmth as temperatures remain consistently high. Sea temperatures also reflect the overall warmth, promoting all forms of water activities. With daytime extending for almost 13 hours, the possibility of outdoor adventures remains high. A slight lull in wind speed is noted, resulting in calmer seas, adding to the joy of ocean lovers.Temperature
The months of July and August see the peak of Inarajan's temperatures, averaging a high of 84.7°F (29.3°C).Heat index
In July, the heat index is evaluated at a very hot 95°F (35°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In Inarajan, the average relative humidity in July is 77%.Rainfall
In July, in Inarajan, the rain falls for 28.9 days. Throughout July, 7.52" (191mm) of precipitation is accumulated. In Inarajan, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.Ocean temperature
In Inarajan, the average seawater temperature in July is 85.1°F (29.5°C).Note: For swimming, diving, or other water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) provide the most enjoyable experience for extended periods without discomfort.
Daylight
The average length of the day in July in Inarajan is 12h and 49min.On the first day of July, sunrise is at 5:58 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 6:48 pm ChST.
Sunshine
In Inarajan, the average sunshine in July is 8.6h.UV index
The months with the highest UV index in Inarajan are January through August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In July, a daily maximum UV index of 7 leads to the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The Sun's UV rays intensify with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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
Inarajan, 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).





