July weather forecast
Piti, GU

Weather in July

July, like June, in Piti, Guam, is another warm summer month, with an average temperature fluctuating between 84.7°F (29.3°C) and 82.9°F (28.3°C).

Temperature

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

Heat index

In July, the average heat index is evaluated at a tropical 94.8°F (34.9°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in July is 77%.

Rainfall

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

Ocean temperature

In Piti, Guam, the average seawater temperature in July is 85.1°F (29.5°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In July, the average length of the day is 12h and 50min.
On the first day of July in Piti, Guam, 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 Piti, the average sunshine in July is 8.6h.

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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the warmest month in Piti?

Warmest months in Piti are July and August, with an average high-temperature of 84.7°F (29.3°C).

What is the temperature in July in Piti?

In July, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 82.9°F (28.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 94.8°F (34.9°C).

What is the average humidity in July in Piti?

The average relative humidity in July in Piti is 77%.

How many days does it rain in July in Piti?

In July, the rain falls for 28.9 days. Throughout July, 7.52" (191mm) of precipitation is accumulated.

What is the ocean temperature in July in Piti?

In July, the average ocean temperature is 85.1°F (29.5°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in July in Piti?

The average day length in July in Piti is 12h and 50min.

When is the sunrise / sunset in July in Piti?

In July, on the first day of the month, sunrise is at 5:57 am and sunset at 6:52 pm. On the last day of the month, in Piti, sunrise is at 6:05 am and sunset at 6:49 pm ChST.

How many hours of sunshine does Piti have in July?

In Piti, Guam, the average sunshine duration in July is 8.6h.

What are the months with the highest UV index in Piti?

The months with the highest UV index are January through August, October through December, with an average maximum UV index of 7.

How high is the UV index in July in Piti?

The average daily maximum UV index in July in Piti is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.

Average temperature in July
Piti, GU

Average temperature in July - Piti, 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).

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Average pressure in July
Piti, GU

Average pressure in July - Piti, 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).

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Average wind speed in July
Piti, GU

Average wind speed in July - Piti, 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).

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Average humidity in July
Piti, GU

Average humidity in July - Piti, 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%).

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Average rainfall in July
Piti, GU

Average rainfall in July - Piti, 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").

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Average rainfall days in July
Piti, GU

Average rainfall days in July - Piti, 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).

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Average sea temperature in July
Piti, GU

Average sea temperature in July - Piti, 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).

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Average daylight in July /
Average sunshine in July
Piti, GU

Average daylight in July / Average sunshine in July - Piti, GU
  • Average daylight in July: 12h and 50min

The month with the longest days is June (Average daylight: 12h and 55min).
The month with the shortest days is December (Average daylight: 11h and 21min).

  • 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).

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Average sunshine days in July
Piti, GU

Average sunshine days in July - Piti, 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).

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Average UV index in July
Piti, GU

Average UV index in July - Piti, 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).

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Average cloud cover in July
Piti, GU

Average cloud cover in July - Piti, 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).

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Average visibility in July
Piti, GU

Average visibility in July - Piti, 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).

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