July weather forecast
Hagåtña, GU

Weather in July

July, the same as June, is a moderately hot summer month in Hagåtña, Guam, with an average temperature ranging between max 84.7°F (29.3°C) and min 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 estimated 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.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, metabolic differences, wind, and clothing affect individual temperature impact. 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 particularly important for children. 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 in Hagåtña is 77%.

Rainfall

In Hagåtña, in July, during 28.9 rainfall days, 7.52" (191mm) of precipitation is typically accumulated. Throughout the year, in Hagåtña, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In July, the average ocean temperature in Hagåtña is 85.1°F (29.5°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In July, the average length of the day in Hagåtña is 12h and 50min.
On the first day of July in Hagåtña, 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

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 reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the warmest month in Hagåtña?

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

What is the temperature in July in Hagåtña?

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

What is the average humidity in July in Hagåtña?

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

How much does it rain in Hagåtña in July?

In Hagåtña, during July, the rain falls for 28.9 days and regularly aggregates up to 7.52" (191mm) of precipitation.

What is the ocean temperature in July in Hagåtña?

In Hagåtña, the average seawater temperature in July 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 Hagåtña?

In Hagåtña, Guam, the average day length in July is 12h and 50min.

When are sunrise and sunset in July in Hagåtña?

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.

How long on average sun shines in July in Hagåtña?

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

What is the month with the highest UV index in Hagåtña?

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

What is the UV index intensity in July in Hagåtña?

In Hagåtña, Guam, the average daily maximum UV index in July is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.

Average temperature in July
Hagåtña, GU

Average temperature in July - Hagåtña, 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
Hagåtña, GU

Average pressure in July - Hagåtña, 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
Hagåtña, GU

Average wind speed in July - Hagåtña, 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
Hagåtña, GU

Average humidity in July - Hagåtña, 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
Hagåtña, GU

Average rainfall in July - Hagåtña, 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
Hagåtña, GU

Average rainfall days in July - Hagåtña, 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
Hagåtña, GU

Average sea temperature in July - Hagåtña, 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
Hagåtña, GU

Average daylight in July / Average sunshine in July - Hagåtña, 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
Hagåtña, GU

Average sunshine days in July - Hagåtña, 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
Hagåtña, GU

Average UV index in July - Hagåtña, 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
Hagåtña, GU

Average cloud cover in July - Hagåtña, 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
Hagåtña, GU

Average visibility in July - Hagåtña, 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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