July weather forecast and climate
Hagåtña, GU

July, like June, in Hagåtña, Guam, is a moderately hot summer month, with temperature in the range of an average low of 82.9°F (28.3°C) and an average high of 84.7°F (29.3°C).

Temperature

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

Heat index

In July, the average heat index is calculated to 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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, clothing, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

In Hagåtña, the average relative humidity is 77%.

Rainfall

In Hagåtña, in July, during 28.9 rainfall days, 7.52" (191mm) of precipitation is typically accumulated. In Hagåtña, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.

Ocean temperature

In Hagåtña, the average seawater temperature 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 12.8h.

Sunshine

In Hagåtña, the average sunshine is 8.6h.

UV index

Months with the highest UV index in Hagåtña 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 the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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.

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 in Hagåtña, Guam.

What is the temperature in July in Hagåtña?

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

What is the average humidity in July in Hagåtña?

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

How many days does it rain in July in Hagåtña?

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

How warm is the water in July in Hagåtña?

In Hagåtña, in July, the average water temperature is 85.1°F (29.5°C). 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.

How many hours of daylight does Hagåtña have in July?

The average length of the day in July in Hagåtña, Guam, is 12.8h.

How long on average sun shines in July in Hagåtña?

The average sunshine in July is 8.6h.

When is 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 estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.
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).

Average pressure in July - Hagåtña, GU
  • Average pressure in July: 29.8"

The month with the highest atmospheric pressure is February (29.88").
Months with the lowest atmospheric pressure are August, September and October (29.79").

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).

Average humidity in July - Hagåtña, GU
  • Average humidity in July: 77%

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 - 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").

Average rainfall days in July - Hagåtña, GU
  • Average rainfall days in July: 28.9 days

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 - 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).

Average daylight in July / Average sunshine in July - Hagåtña, GU
  • Average daylight in July: 12.8h

The month with the longest days is June (Average daylight: 12.9h).
The month with the shortest days is December (Average daylight: 11.3h).

  • Average sunshine in July: 8.6h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is November (Average sunshine: 6.3h).

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).

Average UV index in July - Hagåtña, GU
  • Average UV index in July: 7

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 - Hagåtña, GU
  • Average cloud cover in July: 44

Months with the most cloud cover are January, August and October (Cloud cover 46).
Months with the least cloud cover are May and June (Cloud cover 39).

Average visibility in July - Hagåtña, GU
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).