October weather forecast
Hagåtña, GU

Weather in October

October, like September, in Hagåtña, Guam, is a moderately hot autumn month, with an average temperature varying between 84.4°F (29.1°C) and 82.6°F (28.1°C).

Temperature

In Hagåtña, Guam, the average high-temperature in October remains the same as in September - a still warm 84.4°F (29.1°C). In Hagåtña, the average low-temperature is 82.6°F (28.1°C).

Heat index

The average heat index in October is estimated at a hot 94.3°F (34.6°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 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, pregnancy, clothing), and activity. 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 months with the highest humidity are January, March through May, October through December, with an average relative humidity of 78%.

Rainfall

In October, the rain falls for 28.7 days. Throughout October, 8.46" (215mm) of precipitation is accumulated. Throughout the year, in Hagåtña, Guam, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In Hagåtña, the average seawater temperature in October is 85.1°F (29.5°C).
Note: 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.

Daylight

In Hagåtña, the average length of the day in October is 11h and 50min.
On the first day of October, sunrise is at 6:10 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 5:54 pm ChST.

Sunshine

In Hagåtña, Guam, the average sunshine in October is 6.9h.

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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in October interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 temperature in October in Hagåtña?

The average high-temperature, in October, in Hagåtña, Guam, is 84.4°F (29.1°C), while the average low-temperature is 82.6°F (28.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in October is estimated at 94.3°F (34.6°C).

What is the most humid month in Hagåtña?

The months with the highest humidity in Hagåtña, Guam, are January, March through May, October through December, with an average relative humidity of 78%.

What is the average humidity in October in Hagåtña?

In Hagåtña, Guam, the average relative humidity in October is 78%.

How many days does it rain in October in Hagåtña?

In Hagåtña, in October, during 28.7 rainfall days, 8.46" (215mm) of precipitation is typically accumulated.

What is the ocean temperature in October in Hagåtña?

In Hagåtña, the average seawater temperature in October 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.

How many hours of daylight does Hagåtña have in October?

In October, the average day length in Hagåtña, Guam, is 11h and 50min.

When is the sunrise / sunset in October in Hagåtña?

On the first day of October in Hagåtña, Guam, sunrise is at 6:10 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 5:54 pm ChST.

How many hours of sunshine does Hagåtña have in October?

In Hagåtña, the average sunshine duration in October is 6.9h.

What are the months 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.

What is the UV index intensity in October in Hagåtña?

In Hagåtña, the average daily maximum UV index in October is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Average temperature in October
Hagåtña, GU

Average temperature in October - Hagåtña, GU
  • Average high temperature in October: 84.4°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 October: 82.6°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 October
Hagåtña, GU

Average pressure in October - Hagåtña, GU
  • Average pressure in October: 29.79"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 October
Hagåtña, GU

Average wind speed in October - Hagåtña, GU
  • Average wind speed in October: 11.2mph

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 October
Hagåtña, GU

Average humidity in October - Hagåtña, GU
  • Average humidity in October: 78%

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 October
Hagåtña, GU

Average rainfall in October - Hagåtña, GU
  • Average rainfall in October: 8.46"

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 October
Hagåtña, GU

Average rainfall days in October - Hagåtña, GU
  • Average rainfall days in October: 28.7 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 October
Hagåtña, GU

Average sea temperature in October - Hagåtña, GU
  • Average sea temperature in October: 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 October /
Average sunshine in October
Hagåtña, GU

Average daylight in October / Average sunshine in October - Hagåtña, GU
  • Average daylight in October: 11h 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 October: 6h and 54min

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 October
Hagåtña, GU

Average sunshine days in October - Hagåtña, GU
  • Average sunshine days in October: 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 October
Hagåtña, GU

Average UV index in October - Hagåtña, GU
  • Average UV index in October: 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 October
Hagåtña, GU

Average cloud cover in October - Hagåtña, GU
  • Average cloud cover in October: 46

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 October
Hagåtña, GU

Average visibility in October - Hagåtña, GU
  • Average visibility in October: 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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